feat(ctb): Optimistic large preimages (#8947)

* init keccak proposals

* merklelization

* merk fixes

* Preimage parts, challenge tests

* Tests

* bindings + snapshots

* lint

* tests

* bind

* :broom:, checks, tests

* Contiguous state tests

* :broom:, r4r

* review

* rabbit

* @refcell review

* bindings

* bindings

* @tynes review

* @inphi review

.gitmodules

@@ -20,3 +20,6 @@
 [submodule "packages/contracts-bedrock/lib/solady"]
 	path = packages/contracts-bedrock/lib/solady
 	url = https://github.com/Vectorized/solady
+[submodule "packages/contracts-bedrock/lib/lib-keccak"]
+	path = packages/contracts-bedrock/lib/lib-keccak
+	url = https://github.com/ethereum-optimism/lib-keccak

op-bindings/bindings/alphabetvm.go

@@ -31,7 +31,7 @@ var (
 // AlphabetVMMetaData contains all meta data concerning the AlphabetVM contract.
 var AlphabetVMMetaData = &bind.MetaData{
 	ABI: "[{\"type\":\"constructor\",\"inputs\":[{\"name\":\"_absolutePrestate\",\"type\":\"bytes32\",\"internalType\":\"Claim\"}],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"oracle\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"address\",\"internalType\":\"contractIPreimageOracle\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"step\",\"inputs\":[{\"name\":\"_stateData\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"_localContext\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"outputs\":[{\"name\":\"postState_\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"view\"}]",
-	Bin: 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+	Bin: 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 }
 
 // AlphabetVMABI is the input ABI used to generate the binding from.

op-bindings/bindings/preimageoracle.go

@@ -28,10 +28,22 @@ var (
 	_ = event.NewSubscription
 )
 
+// LibKeccakStateMatrix is an auto generated low-level Go binding around an user-defined struct.
+type LibKeccakStateMatrix struct {
+	State [25]uint64
+}
+
+// PreimageOracleLeaf is an auto generated low-level Go binding around an user-defined struct.
+type PreimageOracleLeaf struct {
+	Input           []byte
+	Index           *big.Int
+	StateCommitment [32]byte
+}
+
 // PreimageOracleMetaData contains all meta data concerning the PreimageOracle contract.
 var PreimageOracleMetaData = &bind.MetaData{
-	ABI: "[{\"type\":\"function\",\"name\":\"loadKeccak256PreimagePart\",\"inputs\":[{\"name\":\"_partOffset\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_preimage\",\"type\":\"bytes\",\"internalType\":\"bytes\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"loadLocalData\",\"inputs\":[{\"name\":\"_ident\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_localContext\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"_word\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"_size\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_partOffset\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"key_\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"preimageLengths\",\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"preimagePartOk\",\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bool\",\"internalType\":\"bool\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"preimageParts\",\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"readPreimage\",\"inputs\":[{\"name\":\"_key\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"_offset\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"dat_\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"datLen_\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"error\",\"name\":\"PartOffsetOOB\",\"inputs\":[]}]",
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+	ABI: "[{\"type\":\"constructor\",\"inputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"CHALLENGE_PERIOD\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"KECCAK_TREE_DEPTH\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"MAX_LEAF_COUNT\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"addLeavesLPP\",\"inputs\":[{\"name\":\"_uuid\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_input\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"_stateCommitments\",\"type\":\"bytes32[]\",\"internalType\":\"bytes32[]\"},{\"name\":\"_finalize\",\"type\":\"bool\",\"internalType\":\"bool\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"challengeFirstLPP\",\"inputs\":[{\"name\":\"_claimant\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"_uuid\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_postState\",\"type\":\"tuple\",\"internalType\":\"structPreimageOracle.Leaf\",\"components\":[{\"name\":\"input\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"index\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"stateCommitment\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}]},{\"name\":\"_postStateProof\",\"type\":\"bytes32[]\",\"internalType\":\"bytes32[]\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"challengeLPP\",\"inputs\":[{\"name\":\"_claimant\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"_uuid\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_stateMatrix\",\"type\":\"tuple\",\"internalType\":\"structLibKeccak.StateMatrix\",\"components\":[{\"name\":\"state\",\"type\":\"uint64[25]\",\"internalType\":\"uint64[25]\"}]},{\"name\":\"_preState\",\"type\":\"tuple\",\"internalType\":\"structPreimageOracle.Leaf\",\"components\":[{\"name\":\"input\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"index\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"stateCommitment\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}]},{\"name\":\"_preStateProof\",\"type\":\"bytes32[]\",\"internalType\":\"bytes32[]\"},{\"name\":\"_postState\",\"type\":\"tuple\",\"internalType\":\"structPreimageOracle.Leaf\",\"components\":[{\"name\":\"input\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"index\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"stateCommitment\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}]},{\"name\":\"_postStateProof\",\"type\":\"bytes32[]\",\"internalType\":\"bytes32[]\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"getTreeRootLPP\",\"inputs\":[{\"name\":\"_owner\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"_uuid\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"treeRoot_\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"initLPP\",\"inputs\":[{\"name\":\"_uuid\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_partOffset\",\"type\":\"uint32\",\"internalType\":\"uint32\"},{\"name\":\"_claimedSize\",\"type\":\"uint32\",\"internalType\":\"uint32\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"loadKeccak256PreimagePart\",\"inputs\":[{\"name\":\"_partOffset\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_preimage\",\"type\":\"bytes\",\"internalType\":\"bytes\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"loadLocalData\",\"inputs\":[{\"name\":\"_ident\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_localContext\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"_word\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"_size\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_partOffset\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"key_\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"preimageLengths\",\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"preimagePartOk\",\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bool\",\"internalType\":\"bool\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"preimageParts\",\"inputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"proposalBranches\",\"inputs\":[{\"name\":\"\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"proposalMetadata\",\"inputs\":[{\"name\":\"\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"LPPMetaData\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"proposalParts\",\"inputs\":[{\"name\":\"\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"readPreimage\",\"inputs\":[{\"name\":\"_key\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"_offset\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"dat_\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"},{\"name\":\"datLen_\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"squeezeLPP\",\"inputs\":[{\"name\":\"_claimant\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"_uuid\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"_stateMatrix\",\"type\":\"tuple\",\"internalType\":\"structLibKeccak.StateMatrix\",\"components\":[{\"name\":\"state\",\"type\":\"uint64[25]\",\"internalType\":\"uint64[25]\"}]},{\"name\":\"_preState\",\"type\":\"tuple\",\"internalType\":\"structPreimageOracle.Leaf\",\"components\":[{\"name\":\"input\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"index\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"stateCommitment\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}]},{\"name\":\"_preStateProof\",\"type\":\"bytes32[]\",\"internalType\":\"bytes32[]\"},{\"name\":\"_postState\",\"type\":\"tuple\",\"internalType\":\"structPreimageOracle.Leaf\",\"components\":[{\"name\":\"input\",\"type\":\"bytes\",\"internalType\":\"bytes\"},{\"name\":\"index\",\"type\":\"uint256\",\"internalType\":\"uint256\"},{\"name\":\"stateCommitment\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}]},{\"name\":\"_postStateProof\",\"type\":\"bytes32[]\",\"internalType\":\"bytes32[]\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"zeroHashes\",\"inputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bytes32\",\"internalType\":\"bytes32\"}],\"stateMutability\":\"view\"},{\"type\":\"error\",\"name\":\"ActiveProposal\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"AlreadyFinalized\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"BadProposal\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"InvalidInputSize\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"InvalidPreimage\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"InvalidProof\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"NotInitialized\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"PartOffsetOOB\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"PostStateMatches\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"StatesNotContiguous\",\"inputs\":[]},{\"type\":\"error\",\"name\":\"TreeSizeOverflow\",\"inputs\":[]}]",
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 }
 
 // PreimageOracleABI is the input ABI used to generate the binding from.
@@ -201,6 +213,130 @@ func (_PreimageOracle *PreimageOracleTransactorRaw) Transact(opts *bind.Transact
 	return _PreimageOracle.Contract.contract.Transact(opts, method, params...)
 }
 
+// CHALLENGEPERIOD is a free data retrieval call binding the contract method 0xc3a079ed.
+//
+// Solidity: function CHALLENGE_PERIOD() view returns(uint256)
+func (_PreimageOracle *PreimageOracleCaller) CHALLENGEPERIOD(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "CHALLENGE_PERIOD")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// CHALLENGEPERIOD is a free data retrieval call binding the contract method 0xc3a079ed.
+//
+// Solidity: function CHALLENGE_PERIOD() view returns(uint256)
+func (_PreimageOracle *PreimageOracleSession) CHALLENGEPERIOD() (*big.Int, error) {
+	return _PreimageOracle.Contract.CHALLENGEPERIOD(&_PreimageOracle.CallOpts)
+}
+
+// CHALLENGEPERIOD is a free data retrieval call binding the contract method 0xc3a079ed.
+//
+// Solidity: function CHALLENGE_PERIOD() view returns(uint256)
+func (_PreimageOracle *PreimageOracleCallerSession) CHALLENGEPERIOD() (*big.Int, error) {
+	return _PreimageOracle.Contract.CHALLENGEPERIOD(&_PreimageOracle.CallOpts)
+}
+
+// KECCAKTREEDEPTH is a free data retrieval call binding the contract method 0x2055b36b.
+//
+// Solidity: function KECCAK_TREE_DEPTH() view returns(uint256)
+func (_PreimageOracle *PreimageOracleCaller) KECCAKTREEDEPTH(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "KECCAK_TREE_DEPTH")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// KECCAKTREEDEPTH is a free data retrieval call binding the contract method 0x2055b36b.
+//
+// Solidity: function KECCAK_TREE_DEPTH() view returns(uint256)
+func (_PreimageOracle *PreimageOracleSession) KECCAKTREEDEPTH() (*big.Int, error) {
+	return _PreimageOracle.Contract.KECCAKTREEDEPTH(&_PreimageOracle.CallOpts)
+}
+
+// KECCAKTREEDEPTH is a free data retrieval call binding the contract method 0x2055b36b.
+//
+// Solidity: function KECCAK_TREE_DEPTH() view returns(uint256)
+func (_PreimageOracle *PreimageOracleCallerSession) KECCAKTREEDEPTH() (*big.Int, error) {
+	return _PreimageOracle.Contract.KECCAKTREEDEPTH(&_PreimageOracle.CallOpts)
+}
+
+// MAXLEAFCOUNT is a free data retrieval call binding the contract method 0x4d52b4c9.
+//
+// Solidity: function MAX_LEAF_COUNT() view returns(uint256)
+func (_PreimageOracle *PreimageOracleCaller) MAXLEAFCOUNT(opts *bind.CallOpts) (*big.Int, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "MAX_LEAF_COUNT")
+
+	if err != nil {
+		return *new(*big.Int), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int)
+
+	return out0, err
+
+}
+
+// MAXLEAFCOUNT is a free data retrieval call binding the contract method 0x4d52b4c9.
+//
+// Solidity: function MAX_LEAF_COUNT() view returns(uint256)
+func (_PreimageOracle *PreimageOracleSession) MAXLEAFCOUNT() (*big.Int, error) {
+	return _PreimageOracle.Contract.MAXLEAFCOUNT(&_PreimageOracle.CallOpts)
+}
+
+// MAXLEAFCOUNT is a free data retrieval call binding the contract method 0x4d52b4c9.
+//
+// Solidity: function MAX_LEAF_COUNT() view returns(uint256)
+func (_PreimageOracle *PreimageOracleCallerSession) MAXLEAFCOUNT() (*big.Int, error) {
+	return _PreimageOracle.Contract.MAXLEAFCOUNT(&_PreimageOracle.CallOpts)
+}
+
+// GetTreeRootLPP is a free data retrieval call binding the contract method 0x0359a563.
+//
+// Solidity: function getTreeRootLPP(address _owner, uint256 _uuid) view returns(bytes32 treeRoot_)
+func (_PreimageOracle *PreimageOracleCaller) GetTreeRootLPP(opts *bind.CallOpts, _owner common.Address, _uuid *big.Int) ([32]byte, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "getTreeRootLPP", _owner, _uuid)
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// GetTreeRootLPP is a free data retrieval call binding the contract method 0x0359a563.
+//
+// Solidity: function getTreeRootLPP(address _owner, uint256 _uuid) view returns(bytes32 treeRoot_)
+func (_PreimageOracle *PreimageOracleSession) GetTreeRootLPP(_owner common.Address, _uuid *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.GetTreeRootLPP(&_PreimageOracle.CallOpts, _owner, _uuid)
+}
+
+// GetTreeRootLPP is a free data retrieval call binding the contract method 0x0359a563.
+//
+// Solidity: function getTreeRootLPP(address _owner, uint256 _uuid) view returns(bytes32 treeRoot_)
+func (_PreimageOracle *PreimageOracleCallerSession) GetTreeRootLPP(_owner common.Address, _uuid *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.GetTreeRootLPP(&_PreimageOracle.CallOpts, _owner, _uuid)
+}
+
 // PreimageLengths is a free data retrieval call binding the contract method 0xfef2b4ed.
 //
 // Solidity: function preimageLengths(bytes32 ) view returns(uint256)
@@ -294,6 +430,99 @@ func (_PreimageOracle *PreimageOracleCallerSession) PreimageParts(arg0 [32]byte,
 	return _PreimageOracle.Contract.PreimageParts(&_PreimageOracle.CallOpts, arg0, arg1)
 }
 
+// ProposalBranches is a free data retrieval call binding the contract method 0xb4801e61.
+//
+// Solidity: function proposalBranches(address , uint256 , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCaller) ProposalBranches(opts *bind.CallOpts, arg0 common.Address, arg1 *big.Int, arg2 *big.Int) ([32]byte, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "proposalBranches", arg0, arg1, arg2)
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// ProposalBranches is a free data retrieval call binding the contract method 0xb4801e61.
+//
+// Solidity: function proposalBranches(address , uint256 , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleSession) ProposalBranches(arg0 common.Address, arg1 *big.Int, arg2 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ProposalBranches(&_PreimageOracle.CallOpts, arg0, arg1, arg2)
+}
+
+// ProposalBranches is a free data retrieval call binding the contract method 0xb4801e61.
+//
+// Solidity: function proposalBranches(address , uint256 , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCallerSession) ProposalBranches(arg0 common.Address, arg1 *big.Int, arg2 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ProposalBranches(&_PreimageOracle.CallOpts, arg0, arg1, arg2)
+}
+
+// ProposalMetadata is a free data retrieval call binding the contract method 0x6551927b.
+//
+// Solidity: function proposalMetadata(address , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCaller) ProposalMetadata(opts *bind.CallOpts, arg0 common.Address, arg1 *big.Int) ([32]byte, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "proposalMetadata", arg0, arg1)
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// ProposalMetadata is a free data retrieval call binding the contract method 0x6551927b.
+//
+// Solidity: function proposalMetadata(address , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleSession) ProposalMetadata(arg0 common.Address, arg1 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ProposalMetadata(&_PreimageOracle.CallOpts, arg0, arg1)
+}
+
+// ProposalMetadata is a free data retrieval call binding the contract method 0x6551927b.
+//
+// Solidity: function proposalMetadata(address , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCallerSession) ProposalMetadata(arg0 common.Address, arg1 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ProposalMetadata(&_PreimageOracle.CallOpts, arg0, arg1)
+}
+
+// ProposalParts is a free data retrieval call binding the contract method 0xb2e67ba8.
+//
+// Solidity: function proposalParts(address , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCaller) ProposalParts(opts *bind.CallOpts, arg0 common.Address, arg1 *big.Int) ([32]byte, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "proposalParts", arg0, arg1)
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// ProposalParts is a free data retrieval call binding the contract method 0xb2e67ba8.
+//
+// Solidity: function proposalParts(address , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleSession) ProposalParts(arg0 common.Address, arg1 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ProposalParts(&_PreimageOracle.CallOpts, arg0, arg1)
+}
+
+// ProposalParts is a free data retrieval call binding the contract method 0xb2e67ba8.
+//
+// Solidity: function proposalParts(address , uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCallerSession) ProposalParts(arg0 common.Address, arg1 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ProposalParts(&_PreimageOracle.CallOpts, arg0, arg1)
+}
+
 // ReadPreimage is a free data retrieval call binding the contract method 0xe03110e1.
 //
 // Solidity: function readPreimage(bytes32 _key, uint256 _offset) view returns(bytes32 dat_, uint256 datLen_)
@@ -339,6 +568,121 @@ func (_PreimageOracle *PreimageOracleCallerSession) ReadPreimage(_key [32]byte,
 	return _PreimageOracle.Contract.ReadPreimage(&_PreimageOracle.CallOpts, _key, _offset)
 }
 
+// ZeroHashes is a free data retrieval call binding the contract method 0x7ac54767.
+//
+// Solidity: function zeroHashes(uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCaller) ZeroHashes(opts *bind.CallOpts, arg0 *big.Int) ([32]byte, error) {
+	var out []interface{}
+	err := _PreimageOracle.contract.Call(opts, &out, "zeroHashes", arg0)
+
+	if err != nil {
+		return *new([32]byte), err
+	}
+
+	out0 := *abi.ConvertType(out[0], new([32]byte)).(*[32]byte)
+
+	return out0, err
+
+}
+
+// ZeroHashes is a free data retrieval call binding the contract method 0x7ac54767.
+//
+// Solidity: function zeroHashes(uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleSession) ZeroHashes(arg0 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ZeroHashes(&_PreimageOracle.CallOpts, arg0)
+}
+
+// ZeroHashes is a free data retrieval call binding the contract method 0x7ac54767.
+//
+// Solidity: function zeroHashes(uint256 ) view returns(bytes32)
+func (_PreimageOracle *PreimageOracleCallerSession) ZeroHashes(arg0 *big.Int) ([32]byte, error) {
+	return _PreimageOracle.Contract.ZeroHashes(&_PreimageOracle.CallOpts, arg0)
+}
+
+// AddLeavesLPP is a paid mutator transaction binding the contract method 0x9f99ef82.
+//
+// Solidity: function addLeavesLPP(uint256 _uuid, bytes _input, bytes32[] _stateCommitments, bool _finalize) returns()
+func (_PreimageOracle *PreimageOracleTransactor) AddLeavesLPP(opts *bind.TransactOpts, _uuid *big.Int, _input []byte, _stateCommitments [][32]byte, _finalize bool) (*types.Transaction, error) {
+	return _PreimageOracle.contract.Transact(opts, "addLeavesLPP", _uuid, _input, _stateCommitments, _finalize)
+}
+
+// AddLeavesLPP is a paid mutator transaction binding the contract method 0x9f99ef82.
+//
+// Solidity: function addLeavesLPP(uint256 _uuid, bytes _input, bytes32[] _stateCommitments, bool _finalize) returns()
+func (_PreimageOracle *PreimageOracleSession) AddLeavesLPP(_uuid *big.Int, _input []byte, _stateCommitments [][32]byte, _finalize bool) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.AddLeavesLPP(&_PreimageOracle.TransactOpts, _uuid, _input, _stateCommitments, _finalize)
+}
+
+// AddLeavesLPP is a paid mutator transaction binding the contract method 0x9f99ef82.
+//
+// Solidity: function addLeavesLPP(uint256 _uuid, bytes _input, bytes32[] _stateCommitments, bool _finalize) returns()
+func (_PreimageOracle *PreimageOracleTransactorSession) AddLeavesLPP(_uuid *big.Int, _input []byte, _stateCommitments [][32]byte, _finalize bool) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.AddLeavesLPP(&_PreimageOracle.TransactOpts, _uuid, _input, _stateCommitments, _finalize)
+}
+
+// ChallengeFirstLPP is a paid mutator transaction binding the contract method 0xec5efcbc.
+//
+// Solidity: function challengeFirstLPP(address _claimant, uint256 _uuid, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleTransactor) ChallengeFirstLPP(opts *bind.TransactOpts, _claimant common.Address, _uuid *big.Int, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.contract.Transact(opts, "challengeFirstLPP", _claimant, _uuid, _postState, _postStateProof)
+}
+
+// ChallengeFirstLPP is a paid mutator transaction binding the contract method 0xec5efcbc.
+//
+// Solidity: function challengeFirstLPP(address _claimant, uint256 _uuid, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleSession) ChallengeFirstLPP(_claimant common.Address, _uuid *big.Int, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.ChallengeFirstLPP(&_PreimageOracle.TransactOpts, _claimant, _uuid, _postState, _postStateProof)
+}
+
+// ChallengeFirstLPP is a paid mutator transaction binding the contract method 0xec5efcbc.
+//
+// Solidity: function challengeFirstLPP(address _claimant, uint256 _uuid, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleTransactorSession) ChallengeFirstLPP(_claimant common.Address, _uuid *big.Int, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.ChallengeFirstLPP(&_PreimageOracle.TransactOpts, _claimant, _uuid, _postState, _postStateProof)
+}
+
+// ChallengeLPP is a paid mutator transaction binding the contract method 0x3909af5c.
+//
+// Solidity: function challengeLPP(address _claimant, uint256 _uuid, (uint64[25]) _stateMatrix, (bytes,uint256,bytes32) _preState, bytes32[] _preStateProof, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleTransactor) ChallengeLPP(opts *bind.TransactOpts, _claimant common.Address, _uuid *big.Int, _stateMatrix LibKeccakStateMatrix, _preState PreimageOracleLeaf, _preStateProof [][32]byte, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.contract.Transact(opts, "challengeLPP", _claimant, _uuid, _stateMatrix, _preState, _preStateProof, _postState, _postStateProof)
+}
+
+// ChallengeLPP is a paid mutator transaction binding the contract method 0x3909af5c.
+//
+// Solidity: function challengeLPP(address _claimant, uint256 _uuid, (uint64[25]) _stateMatrix, (bytes,uint256,bytes32) _preState, bytes32[] _preStateProof, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleSession) ChallengeLPP(_claimant common.Address, _uuid *big.Int, _stateMatrix LibKeccakStateMatrix, _preState PreimageOracleLeaf, _preStateProof [][32]byte, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.ChallengeLPP(&_PreimageOracle.TransactOpts, _claimant, _uuid, _stateMatrix, _preState, _preStateProof, _postState, _postStateProof)
+}
+
+// ChallengeLPP is a paid mutator transaction binding the contract method 0x3909af5c.
+//
+// Solidity: function challengeLPP(address _claimant, uint256 _uuid, (uint64[25]) _stateMatrix, (bytes,uint256,bytes32) _preState, bytes32[] _preStateProof, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleTransactorSession) ChallengeLPP(_claimant common.Address, _uuid *big.Int, _stateMatrix LibKeccakStateMatrix, _preState PreimageOracleLeaf, _preStateProof [][32]byte, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.ChallengeLPP(&_PreimageOracle.TransactOpts, _claimant, _uuid, _stateMatrix, _preState, _preStateProof, _postState, _postStateProof)
+}
+
+// InitLPP is a paid mutator transaction binding the contract method 0xfaf37bc7.
+//
+// Solidity: function initLPP(uint256 _uuid, uint32 _partOffset, uint32 _claimedSize) returns()
+func (_PreimageOracle *PreimageOracleTransactor) InitLPP(opts *bind.TransactOpts, _uuid *big.Int, _partOffset uint32, _claimedSize uint32) (*types.Transaction, error) {
+	return _PreimageOracle.contract.Transact(opts, "initLPP", _uuid, _partOffset, _claimedSize)
+}
+
+// InitLPP is a paid mutator transaction binding the contract method 0xfaf37bc7.
+//
+// Solidity: function initLPP(uint256 _uuid, uint32 _partOffset, uint32 _claimedSize) returns()
+func (_PreimageOracle *PreimageOracleSession) InitLPP(_uuid *big.Int, _partOffset uint32, _claimedSize uint32) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.InitLPP(&_PreimageOracle.TransactOpts, _uuid, _partOffset, _claimedSize)
+}
+
+// InitLPP is a paid mutator transaction binding the contract method 0xfaf37bc7.
+//
+// Solidity: function initLPP(uint256 _uuid, uint32 _partOffset, uint32 _claimedSize) returns()
+func (_PreimageOracle *PreimageOracleTransactorSession) InitLPP(_uuid *big.Int, _partOffset uint32, _claimedSize uint32) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.InitLPP(&_PreimageOracle.TransactOpts, _uuid, _partOffset, _claimedSize)
+}
+
 // LoadKeccak256PreimagePart is a paid mutator transaction binding the contract method 0xe1592611.
 //
 // Solidity: function loadKeccak256PreimagePart(uint256 _partOffset, bytes _preimage) returns()
@@ -380,3 +724,24 @@ func (_PreimageOracle *PreimageOracleSession) LoadLocalData(_ident *big.Int, _lo
 func (_PreimageOracle *PreimageOracleTransactorSession) LoadLocalData(_ident *big.Int, _localContext [32]byte, _word [32]byte, _size *big.Int, _partOffset *big.Int) (*types.Transaction, error) {
 	return _PreimageOracle.Contract.LoadLocalData(&_PreimageOracle.TransactOpts, _ident, _localContext, _word, _size, _partOffset)
 }
+
+// SqueezeLPP is a paid mutator transaction binding the contract method 0xd18534b5.
+//
+// Solidity: function squeezeLPP(address _claimant, uint256 _uuid, (uint64[25]) _stateMatrix, (bytes,uint256,bytes32) _preState, bytes32[] _preStateProof, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleTransactor) SqueezeLPP(opts *bind.TransactOpts, _claimant common.Address, _uuid *big.Int, _stateMatrix LibKeccakStateMatrix, _preState PreimageOracleLeaf, _preStateProof [][32]byte, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.contract.Transact(opts, "squeezeLPP", _claimant, _uuid, _stateMatrix, _preState, _preStateProof, _postState, _postStateProof)
+}
+
+// SqueezeLPP is a paid mutator transaction binding the contract method 0xd18534b5.
+//
+// Solidity: function squeezeLPP(address _claimant, uint256 _uuid, (uint64[25]) _stateMatrix, (bytes,uint256,bytes32) _preState, bytes32[] _preStateProof, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleSession) SqueezeLPP(_claimant common.Address, _uuid *big.Int, _stateMatrix LibKeccakStateMatrix, _preState PreimageOracleLeaf, _preStateProof [][32]byte, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.SqueezeLPP(&_PreimageOracle.TransactOpts, _claimant, _uuid, _stateMatrix, _preState, _preStateProof, _postState, _postStateProof)
+}
+
+// SqueezeLPP is a paid mutator transaction binding the contract method 0xd18534b5.
+//
+// Solidity: function squeezeLPP(address _claimant, uint256 _uuid, (uint64[25]) _stateMatrix, (bytes,uint256,bytes32) _preState, bytes32[] _preStateProof, (bytes,uint256,bytes32) _postState, bytes32[] _postStateProof) returns()
+func (_PreimageOracle *PreimageOracleTransactorSession) SqueezeLPP(_claimant common.Address, _uuid *big.Int, _stateMatrix LibKeccakStateMatrix, _preState PreimageOracleLeaf, _preStateProof [][32]byte, _postState PreimageOracleLeaf, _postStateProof [][32]byte) (*types.Transaction, error) {
+	return _PreimageOracle.Contract.SqueezeLPP(&_PreimageOracle.TransactOpts, _claimant, _uuid, _stateMatrix, _preState, _preStateProof, _postState, _postStateProof)
+}

op-bindings/bindings/preimageoracle_more.go

@@ -9,11 +9,11 @@ import (
 	"github.com/ethereum-optimism/optimism/op-bindings/solc"
 )
 
-const PreimageOracleStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"preimageLengths\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_bytes32,t_uint256)\"},{\"astId\":1001,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"preimageParts\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bytes32))\"},{\"astId\":1002,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"preimagePartOk\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bool))\"}],\"types\":{\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bool))\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e mapping(uint256 =\u003e bool))\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_mapping(t_uint256,t_bool)\"},\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bytes32))\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e mapping(uint256 =\u003e bytes32))\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_mapping(t_uint256,t_bytes32)\"},\"t_mapping(t_bytes32,t_uint256)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e uint256)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_uint256\"},\"t_mapping(t_uint256,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_bool\"},\"t_mapping(t_uint256,t_bytes32)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e bytes32)\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_bytes32\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"}}}"
+const PreimageOracleStorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"preimageLengths\",\"offset\":0,\"slot\":\"0\",\"type\":\"t_mapping(t_bytes32,t_uint256)\"},{\"astId\":1001,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"preimageParts\",\"offset\":0,\"slot\":\"1\",\"type\":\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bytes32))\"},{\"astId\":1002,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"preimagePartOk\",\"offset\":0,\"slot\":\"2\",\"type\":\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bool))\"},{\"astId\":1003,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"zeroHashes\",\"offset\":0,\"slot\":\"3\",\"type\":\"t_array(t_bytes32)16_storage\"},{\"astId\":1004,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"proposalBranches\",\"offset\":0,\"slot\":\"19\",\"type\":\"t_mapping(t_address,t_mapping(t_uint256,t_array(t_bytes32)16_storage))\"},{\"astId\":1005,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"proposalMetadata\",\"offset\":0,\"slot\":\"20\",\"type\":\"t_mapping(t_address,t_mapping(t_uint256,t_userDefinedValueType(LPPMetaData)1007))\"},{\"astId\":1006,\"contract\":\"src/cannon/PreimageOracle.sol:PreimageOracle\",\"label\":\"proposalParts\",\"offset\":0,\"slot\":\"21\",\"type\":\"t_mapping(t_address,t_mapping(t_uint256,t_bytes32))\"}],\"types\":{\"t_address\":{\"encoding\":\"inplace\",\"label\":\"address\",\"numberOfBytes\":\"20\"},\"t_array(t_bytes32)16_storage\":{\"encoding\":\"inplace\",\"label\":\"bytes32[16]\",\"numberOfBytes\":\"512\",\"base\":\"t_bytes32\"},\"t_bool\":{\"encoding\":\"inplace\",\"label\":\"bool\",\"numberOfBytes\":\"1\"},\"t_bytes32\":{\"encoding\":\"inplace\",\"label\":\"bytes32\",\"numberOfBytes\":\"32\"},\"t_mapping(t_address,t_mapping(t_uint256,t_array(t_bytes32)16_storage))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(uint256 =\u003e bytes32[16]))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_uint256,t_array(t_bytes32)16_storage)\"},\"t_mapping(t_address,t_mapping(t_uint256,t_bytes32))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(uint256 =\u003e bytes32))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_uint256,t_bytes32)\"},\"t_mapping(t_address,t_mapping(t_uint256,t_userDefinedValueType(LPPMetaData)1007))\":{\"encoding\":\"mapping\",\"label\":\"mapping(address =\u003e mapping(uint256 =\u003e LPPMetaData))\",\"numberOfBytes\":\"32\",\"key\":\"t_address\",\"value\":\"t_mapping(t_uint256,t_userDefinedValueType(LPPMetaData)1007)\"},\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bool))\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e mapping(uint256 =\u003e bool))\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_mapping(t_uint256,t_bool)\"},\"t_mapping(t_bytes32,t_mapping(t_uint256,t_bytes32))\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e mapping(uint256 =\u003e bytes32))\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_mapping(t_uint256,t_bytes32)\"},\"t_mapping(t_bytes32,t_uint256)\":{\"encoding\":\"mapping\",\"label\":\"mapping(bytes32 =\u003e uint256)\",\"numberOfBytes\":\"32\",\"key\":\"t_bytes32\",\"value\":\"t_uint256\"},\"t_mapping(t_uint256,t_array(t_bytes32)16_storage)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e bytes32[16])\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_array(t_bytes32)16_storage\"},\"t_mapping(t_uint256,t_bool)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e bool)\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_bool\"},\"t_mapping(t_uint256,t_bytes32)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e bytes32)\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_bytes32\"},\"t_mapping(t_uint256,t_userDefinedValueType(LPPMetaData)1007)\":{\"encoding\":\"mapping\",\"label\":\"mapping(uint256 =\u003e LPPMetaData)\",\"numberOfBytes\":\"32\",\"key\":\"t_uint256\",\"value\":\"t_userDefinedValueType(LPPMetaData)1007\"},\"t_uint256\":{\"encoding\":\"inplace\",\"label\":\"uint256\",\"numberOfBytes\":\"32\"},\"t_userDefinedValueType(LPPMetaData)1007\":{\"encoding\":\"inplace\",\"label\":\"LPPMetaData\",\"numberOfBytes\":\"32\"}}}"
 
 var PreimageOracleStorageLayout = new(solc.StorageLayout)
 
-var PreimageOracleDeployedBin = "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"
+var PreimageOracleDeployedBin = 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
 
 func init() {

op-bindings/bindings/weth9.go

@@ -31,7 +31,7 @@ var (
 // WETH9MetaData contains all meta data concerning the WETH9 contract.
 var WETH9MetaData = &bind.MetaData{
 	ABI: "[{\"type\":\"fallback\",\"stateMutability\":\"payable\"},{\"type\":\"function\",\"name\":\"allowance\",\"inputs\":[{\"name\":\"\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"\",\"type\":\"address\",\"internalType\":\"address\"}],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"approve\",\"inputs\":[{\"name\":\"guy\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"wad\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bool\",\"internalType\":\"bool\"}],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"balanceOf\",\"inputs\":[{\"name\":\"\",\"type\":\"address\",\"internalType\":\"address\"}],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"decimals\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"uint8\",\"internalType\":\"uint8\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"deposit\",\"inputs\":[],\"outputs\":[],\"stateMutability\":\"payable\"},{\"type\":\"function\",\"name\":\"name\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"string\",\"internalType\":\"string\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"symbol\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"string\",\"internalType\":\"string\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"totalSupply\",\"inputs\":[],\"outputs\":[{\"name\":\"\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"stateMutability\":\"view\"},{\"type\":\"function\",\"name\":\"transfer\",\"inputs\":[{\"name\":\"dst\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"wad\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bool\",\"internalType\":\"bool\"}],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"transferFrom\",\"inputs\":[{\"name\":\"src\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"dst\",\"type\":\"address\",\"internalType\":\"address\"},{\"name\":\"wad\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[{\"name\":\"\",\"type\":\"bool\",\"internalType\":\"bool\"}],\"stateMutability\":\"nonpayable\"},{\"type\":\"function\",\"name\":\"withdraw\",\"inputs\":[{\"name\":\"wad\",\"type\":\"uint256\",\"internalType\":\"uint256\"}],\"outputs\":[],\"stateMutability\":\"nonpayable\"},{\"type\":\"event\",\"name\":\"Approval\",\"inputs\":[{\"name\":\"src\",\"type\":\"address\",\"indexed\":true,\"internalType\":\"address\"},{\"name\":\"guy\",\"type\":\"address\",\"indexed\":true,\"internalType\":\"address\"},{\"name\":\"wad\",\"type\":\"uint256\",\"indexed\":false,\"internalType\":\"uint256\"}],\"anonymous\":false},{\"type\":\"event\",\"name\":\"Deposit\",\"inputs\":[{\"name\":\"dst\",\"type\":\"address\",\"indexed\":true,\"internalType\":\"address\"},{\"name\":\"wad\",\"type\":\"uint256\",\"indexed\":false,\"internalType\":\"uint256\"}],\"anonymous\":false},{\"type\":\"event\",\"name\":\"Transfer\",\"inputs\":[{\"name\":\"src\",\"type\":\"address\",\"indexed\":true,\"internalType\":\"address\"},{\"name\":\"dst\",\"type\":\"address\",\"indexed\":true,\"internalType\":\"address\"},{\"name\":\"wad\",\"type\":\"uint256\",\"indexed\":false,\"internalType\":\"uint256\"}],\"anonymous\":false},{\"type\":\"event\",\"name\":\"Withdrawal\",\"inputs\":[{\"name\":\"src\",\"type\":\"address\",\"indexed\":true,\"internalType\":\"address\"},{\"name\":\"wad\",\"type\":\"uint256\",\"indexed\":false,\"internalType\":\"uint256\"}],\"anonymous\":false}]",
-	Bin: "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",
+	Bin: "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",
 }
 
 // WETH9ABI is the input ABI used to generate the binding from.

op-bindings/bindings/weth9_more.go

@@ -13,7 +13,7 @@ const WETH9StorageLayoutJSON = "{\"storage\":[{\"astId\":1000,\"contract\":\"src
 
 var WETH9StorageLayout = new(solc.StorageLayout)
 
-var WETH9DeployedBin = "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"
+var WETH9DeployedBin = "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"
 
 
 func init() {

packages/contracts-bedrock/foundry.toml

@@ -15,6 +15,7 @@ remappings = [
   '@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts',
   '@rari-capital/solmate/=lib/solmate',
   '@cwia/=lib/clones-with-immutable-args/src',
+  '@lib-keccak/=lib/lib-keccak/contracts/lib',
   'forge-std/=lib/forge-std/src',
   'ds-test/=lib/forge-std/lib/ds-test/src',
   'safe-contracts/=lib/safe-contracts/contracts',

lib-keccak @ 59dcbd7b

+Subproject commit 59dcbd7b0de1fd00b44f4ce41e99a7f990564d11

packages/contracts-bedrock/slither-report.json

@@ -1091,6 +1091,18 @@
     "length": 22,
     "filename_relative": "src/dispute/FaultDisputeGame.sol"
   },
+  {
+    "id": "037c6a008887de2859c40f66cb99806d2e25ea8d4b0658d3fdc448e77c20439b",
+    "impact": "Medium",
+    "confidence": "Medium",
+    "check": "uninitialized-local",
+    "description": "PreimageOracle.challengeFirstLPP(address,uint256,PreimageOracle.Leaf,bytes32[]).stateMatrix (src/cannon/PreimageOracle.sol#357) is a local variable never initialized\n",
+    "type": "variable",
+    "name": "stateMatrix",
+    "start": 16305,
+    "length": 40,
+    "filename_relative": "src/cannon/PreimageOracle.sol"
+  },
   {
     "id": "8c229f5475784b2e9526e30d55b066e479489bca4b07c4f062b42b5b70100794",
     "impact": "Medium",

packages/contracts-bedrock/snapshots/abi/PreimageOracle.json

 [
+  {
+    "inputs": [],
+    "stateMutability": "nonpayable",
+    "type": "constructor"
+  },
+  {
+    "inputs": [],
+    "name": "CHALLENGE_PERIOD",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "KECCAK_TREE_DEPTH",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "MAX_LEAF_COUNT",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "uint256",
+        "name": "_uuid",
+        "type": "uint256"
+      },
+      {
+        "internalType": "bytes",
+        "name": "_input",
+        "type": "bytes"
+      },
+      {
+        "internalType": "bytes32[]",
+        "name": "_stateCommitments",
+        "type": "bytes32[]"
+      },
+      {
+        "internalType": "bool",
+        "name": "_finalize",
+        "type": "bool"
+      }
+    ],
+    "name": "addLeavesLPP",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_claimant",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_uuid",
+        "type": "uint256"
+      },
+      {
+        "components": [
+          {
+            "internalType": "bytes",
+            "name": "input",
+            "type": "bytes"
+          },
+          {
+            "internalType": "uint256",
+            "name": "index",
+            "type": "uint256"
+          },
+          {
+            "internalType": "bytes32",
+            "name": "stateCommitment",
+            "type": "bytes32"
+          }
+        ],
+        "internalType": "struct PreimageOracle.Leaf",
+        "name": "_postState",
+        "type": "tuple"
+      },
+      {
+        "internalType": "bytes32[]",
+        "name": "_postStateProof",
+        "type": "bytes32[]"
+      }
+    ],
+    "name": "challengeFirstLPP",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_claimant",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_uuid",
+        "type": "uint256"
+      },
+      {
+        "components": [
+          {
+            "internalType": "uint64[25]",
+            "name": "state",
+            "type": "uint64[25]"
+          }
+        ],
+        "internalType": "struct LibKeccak.StateMatrix",
+        "name": "_stateMatrix",
+        "type": "tuple"
+      },
+      {
+        "components": [
+          {
+            "internalType": "bytes",
+            "name": "input",
+            "type": "bytes"
+          },
+          {
+            "internalType": "uint256",
+            "name": "index",
+            "type": "uint256"
+          },
+          {
+            "internalType": "bytes32",
+            "name": "stateCommitment",
+            "type": "bytes32"
+          }
+        ],
+        "internalType": "struct PreimageOracle.Leaf",
+        "name": "_preState",
+        "type": "tuple"
+      },
+      {
+        "internalType": "bytes32[]",
+        "name": "_preStateProof",
+        "type": "bytes32[]"
+      },
+      {
+        "components": [
+          {
+            "internalType": "bytes",
+            "name": "input",
+            "type": "bytes"
+          },
+          {
+            "internalType": "uint256",
+            "name": "index",
+            "type": "uint256"
+          },
+          {
+            "internalType": "bytes32",
+            "name": "stateCommitment",
+            "type": "bytes32"
+          }
+        ],
+        "internalType": "struct PreimageOracle.Leaf",
+        "name": "_postState",
+        "type": "tuple"
+      },
+      {
+        "internalType": "bytes32[]",
+        "name": "_postStateProof",
+        "type": "bytes32[]"
+      }
+    ],
+    "name": "challengeLPP",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_owner",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_uuid",
+        "type": "uint256"
+      }
+    ],
+    "name": "getTreeRootLPP",
+    "outputs": [
+      {
+        "internalType": "bytes32",
+        "name": "treeRoot_",
+        "type": "bytes32"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "uint256",
+        "name": "_uuid",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint32",
+        "name": "_partOffset",
+        "type": "uint32"
+      },
+      {
+        "internalType": "uint32",
+        "name": "_claimedSize",
+        "type": "uint32"
+      }
+    ],
+    "name": "initLPP",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
   {
     "inputs": [
       {
@@ -123,6 +371,83 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "name": "proposalBranches",
+    "outputs": [
+      {
+        "internalType": "bytes32",
+        "name": "",
+        "type": "bytes32"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "name": "proposalMetadata",
+    "outputs": [
+      {
+        "internalType": "LPPMetaData",
+        "name": "",
+        "type": "bytes32"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "name": "proposalParts",
+    "outputs": [
+      {
+        "internalType": "bytes32",
+        "name": "",
+        "type": "bytes32"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
   {
     "inputs": [
       {
@@ -152,9 +477,162 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_claimant",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_uuid",
+        "type": "uint256"
+      },
+      {
+        "components": [
+          {
+            "internalType": "uint64[25]",
+            "name": "state",
+            "type": "uint64[25]"
+          }
+        ],
+        "internalType": "struct LibKeccak.StateMatrix",
+        "name": "_stateMatrix",
+        "type": "tuple"
+      },
+      {
+        "components": [
+          {
+            "internalType": "bytes",
+            "name": "input",
+            "type": "bytes"
+          },
+          {
+            "internalType": "uint256",
+            "name": "index",
+            "type": "uint256"
+          },
+          {
+            "internalType": "bytes32",
+            "name": "stateCommitment",
+            "type": "bytes32"
+          }
+        ],
+        "internalType": "struct PreimageOracle.Leaf",
+        "name": "_preState",
+        "type": "tuple"
+      },
+      {
+        "internalType": "bytes32[]",
+        "name": "_preStateProof",
+        "type": "bytes32[]"
+      },
+      {
+        "components": [
+          {
+            "internalType": "bytes",
+            "name": "input",
+            "type": "bytes"
+          },
+          {
+            "internalType": "uint256",
+            "name": "index",
+            "type": "uint256"
+          },
+          {
+            "internalType": "bytes32",
+            "name": "stateCommitment",
+            "type": "bytes32"
+          }
+        ],
+        "internalType": "struct PreimageOracle.Leaf",
+        "name": "_postState",
+        "type": "tuple"
+      },
+      {
+        "internalType": "bytes32[]",
+        "name": "_postStateProof",
+        "type": "bytes32[]"
+      }
+    ],
+    "name": "squeezeLPP",
+    "outputs": [],
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "internalType": "uint256",
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "name": "zeroHashes",
+    "outputs": [
+      {
+        "internalType": "bytes32",
+        "name": "",
+        "type": "bytes32"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "inputs": [],
+    "name": "ActiveProposal",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "AlreadyFinalized",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "BadProposal",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "InvalidInputSize",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "InvalidPreimage",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "InvalidProof",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "NotInitialized",
+    "type": "error"
+  },
   {
     "inputs": [],
     "name": "PartOffsetOOB",
     "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "PostStateMatches",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "StatesNotContiguous",
+    "type": "error"
+  },
+  {
+    "inputs": [],
+    "name": "TreeSizeOverflow",
+    "type": "error"
   }
 ]
\ No newline at end of file

packages/contracts-bedrock/snapshots/storageLayout/PreimageOracle.json

@@ -19,5 +19,33 @@
     "offset": 0,
     "slot": "2",
     "type": "mapping(bytes32 => mapping(uint256 => bool))"
+  },
+  {
+    "bytes": "512",
+    "label": "zeroHashes",
+    "offset": 0,
+    "slot": "3",
+    "type": "bytes32[16]"
+  },
+  {
+    "bytes": "32",
+    "label": "proposalBranches",
+    "offset": 0,
+    "slot": "19",
+    "type": "mapping(address => mapping(uint256 => bytes32[16]))"
+  },
+  {
+    "bytes": "32",
+    "label": "proposalMetadata",
+    "offset": 0,
+    "slot": "20",
+    "type": "mapping(address => mapping(uint256 => LPPMetaData))"
+  },
+  {
+    "bytes": "32",
+    "label": "proposalParts",
+    "offset": 0,
+    "slot": "21",
+    "type": "mapping(address => mapping(uint256 => bytes32))"
   }
 ]
\ No newline at end of file

packages/contracts-bedrock/src/cannon/PreimageOracle.sol

@@ -3,18 +3,77 @@ pragma solidity 0.8.15;
 
 import { IPreimageOracle } from "./interfaces/IPreimageOracle.sol";
 import { PreimageKeyLib } from "./PreimageKeyLib.sol";
-import "./libraries/CannonErrors.sol";
+import { LibKeccak } from "@lib-keccak/LibKeccak.sol";
+import "src/cannon/libraries/CannonErrors.sol";
+import "src/cannon/libraries/CannonTypes.sol";
 
 /// @title PreimageOracle
 /// @notice A contract for storing permissioned pre-images.
+/// @custom:attribution Solady <https://github.com/Vectorized/solady/blob/main/src/utils/MerkleProofLib.sol#L13-L43>
+/// @custom:attribution Beacon Deposit Contract <0x00000000219ab540356cbb839cbe05303d7705fa>
 contract PreimageOracle is IPreimageOracle {
+    ////////////////////////////////////////////////////////////////
+    //                         Constants                          //
+    ////////////////////////////////////////////////////////////////
+
+    /// @notice The depth of the keccak256 merkle tree. Supports up to 65,536 keccak blocks, or ~8.91MB preimages.
+    uint256 public constant KECCAK_TREE_DEPTH = 16;
+    /// @notice The maximum number of keccak blocks that can fit into the merkle tree.
+    uint256 public constant MAX_LEAF_COUNT = 2 ** KECCAK_TREE_DEPTH - 1;
+    /// @notice The duration of the large preimage proposal challenge period.
+    uint256 public constant CHALLENGE_PERIOD = 1 days;
+
+    ////////////////////////////////////////////////////////////////
+    //                 Authorized Preimage Parts                  //
+    ////////////////////////////////////////////////////////////////
+
     /// @notice Mapping of pre-image keys to pre-image lengths.
     mapping(bytes32 => uint256) public preimageLengths;
-    /// @notice Mapping of pre-image keys to pre-image parts.
+    /// @notice Mapping of pre-image keys to pre-image offsets to pre-image parts.
     mapping(bytes32 => mapping(uint256 => bytes32)) public preimageParts;
-    /// @notice Mapping of pre-image keys to pre-image part offsets.
+    /// @notice Mapping of pre-image keys to pre-image part offsets to preimage preparedness.
     mapping(bytes32 => mapping(uint256 => bool)) public preimagePartOk;
 
+    ////////////////////////////////////////////////////////////////
+    //                  Large Preimage Proposals                  //
+    ////////////////////////////////////////////////////////////////
+
+    /// @notice A raw leaf of the large preimage proposal merkle tree.
+    struct Leaf {
+        /// @notice The input absorbed for the block, exactly 136 bytes.
+        bytes input;
+        /// @notice The index of the block in the absorption process.
+        uint256 index;
+        /// @notice The hash of the internal state after absorbing the input.
+        bytes32 stateCommitment;
+    }
+
+    /// @notice Static padding hashes. These values are persisted in storage, but are entirely immutable
+    ///         after the constructor's execution.
+    bytes32[KECCAK_TREE_DEPTH] public zeroHashes;
+    /// @notice Mapping of claimants to proposal UUIDs to the current branch path of the merkleization process.
+    mapping(address => mapping(uint256 => bytes32[KECCAK_TREE_DEPTH])) public proposalBranches;
+    /// @notice Mapping of claimants to proposal UUIDs to the timestamp of creation of the proposal as well as the
+    /// challenged status.
+    mapping(address => mapping(uint256 => LPPMetaData)) public proposalMetadata;
+    /// @notice Mapping of claimants to proposal UUIDs to the preimage part picked up during the absorbtion process.
+    mapping(address => mapping(uint256 => bytes32)) public proposalParts;
+
+    ////////////////////////////////////////////////////////////////
+    //                        Constructor                         //
+    ////////////////////////////////////////////////////////////////
+
+    constructor() {
+        // Compute hashes in empty sparse Merkle tree. The first hash is not set, and kept as zero as the identity.
+        for (uint256 height = 0; height < KECCAK_TREE_DEPTH - 1; height++) {
+            zeroHashes[height + 1] = keccak256(abi.encodePacked(zeroHashes[height], zeroHashes[height]));
+        }
+    }
+
+    ////////////////////////////////////////////////////////////////
+    //             Standard Preimage Route (External)             //
+    ////////////////////////////////////////////////////////////////
+
     /// @inheritdoc IPreimageOracle
     function readPreimage(bytes32 _key, uint256 _offset) external view returns (bytes32 dat_, uint256 datLen_) {
         require(preimagePartOk[_key][_offset], "pre-image must exist");
@@ -106,4 +165,308 @@ contract PreimageOracle is IPreimageOracle {
         preimageParts[key][_partOffset] = part;
         preimageLengths[key] = size;
     }
+
+    ////////////////////////////////////////////////////////////////
+    //            Large Preimage Proposals (External)             //
+    ////////////////////////////////////////////////////////////////
+
+    /// @notice Initialize a large preimage proposal. Must be called before adding any leaves.
+    function initLPP(uint256 _uuid, uint32 _partOffset, uint32 _claimedSize) external {
+        if (_partOffset >= _claimedSize + 8) revert PartOffsetOOB();
+
+        LPPMetaData metaData = proposalMetadata[msg.sender][_uuid];
+        proposalMetadata[msg.sender][_uuid] = metaData.setPartOffset(_partOffset).setClaimedSize(_claimedSize);
+    }
+
+    /// @notice Adds a contiguous list of keccak state matrices to the merkle tree.
+    function addLeavesLPP(
+        uint256 _uuid,
+        bytes calldata _input,
+        bytes32[] calldata _stateCommitments,
+        bool _finalize
+    )
+        external
+    {
+        // If we're finalizing, pad the input for the submitter. If not, copy the input into memory verbatim.
+        bytes memory input;
+        if (_finalize) {
+            input = LibKeccak.pad(_input);
+        } else {
+            input = _input;
+        }
+
+        // Pull storage variables onto the stack / into memory for operations.
+        bytes32[KECCAK_TREE_DEPTH] memory branch = proposalBranches[msg.sender][_uuid];
+        LPPMetaData metaData = proposalMetadata[msg.sender][_uuid];
+
+        // Revert if the proposal has not been initialized. 0-size preimages are *not* allowed.
+        if (metaData.claimedSize() == 0) revert NotInitialized();
+
+        // Revert if the proposal has already been finalized. No leaves can be added after this point.
+        if (metaData.timestamp() != 0) revert AlreadyFinalized();
+
+        // Check if the part offset is present in the input data being posted. If it is, assign the part to the mapping.
+        uint256 offset = metaData.partOffset();
+        uint256 currentSize = metaData.bytesProcessed();
+        if (offset < 8 && currentSize == 0) {
+            uint32 claimedSize = metaData.claimedSize();
+            bytes32 preimagePart;
+            assembly {
+                mstore(0x00, shl(192, claimedSize))
+                mstore(0x08, calldataload(_input.offset))
+                preimagePart := mload(offset)
+            }
+            proposalParts[msg.sender][_uuid] = preimagePart;
+        } else if (offset >= 8 && (offset = offset - 8) >= currentSize && offset < currentSize + _input.length) {
+            uint256 relativeOffset = offset - currentSize;
+
+            // Revert if the full preimage part is not available in the data we're absorbing. The submitter must
+            // supply data that contains the full preimage part so that no partial preimage parts are stored in the
+            // oracle. Partial parts are *only* allowed at the tail end of the preimage, where no more data is available
+            // to be absorbed.
+            if (relativeOffset + 32 >= _input.length && !_finalize) revert PartOffsetOOB();
+
+            // If the preimage part is in the data we're about to absorb, persist the part to the caller's large
+            // preimaage metadata.
+            bytes32 preimagePart;
+            assembly {
+                preimagePart := calldataload(add(_input.offset, relativeOffset))
+            }
+            proposalParts[msg.sender][_uuid] = preimagePart;
+        }
+
+        uint256 blocksProcessed = metaData.blocksProcessed();
+        assembly {
+            let inputLen := mload(input)
+            let inputPtr := add(input, 0x20)
+
+            // The input length must be a multiple of 136 bytes
+            // The input lenth / 136 must be equal to the number of state commitments.
+            if or(mod(inputLen, 136), iszero(eq(_stateCommitments.length, div(inputLen, 136)))) {
+                // Store "InvalidInputSize()" error selector
+                mstore(0x00, 0x7b1daf1)
+                revert(0x1C, 0x04)
+            }
+
+            // Allocate a hashing buffer the size of the leaf preimage.
+            let hashBuf := mload(0x40)
+            mstore(0x40, add(hashBuf, 0xC8))
+
+            for { let i := 0 } lt(i, inputLen) { i := add(i, 136) } {
+                // Copy the leaf preimage into the hashing buffer.
+                let inputStartPtr := add(inputPtr, i)
+                mstore(hashBuf, mload(inputStartPtr))
+                mstore(add(hashBuf, 0x20), mload(add(inputStartPtr, 0x20)))
+                mstore(add(hashBuf, 0x40), mload(add(inputStartPtr, 0x40)))
+                mstore(add(hashBuf, 0x60), mload(add(inputStartPtr, 0x60)))
+                mstore(add(hashBuf, 0x80), mload(add(inputStartPtr, 0x80)))
+                mstore(add(hashBuf, 136), blocksProcessed)
+                mstore(add(hashBuf, 168), calldataload(add(_stateCommitments.offset, shl(0x05, div(i, 136)))))
+
+                // Hash the leaf preimage to get the node to add.
+                let node := keccak256(hashBuf, 0xC8)
+
+                // Increment the number of blocks processed.
+                blocksProcessed := add(blocksProcessed, 0x01)
+
+                // Add the node to the tree.
+                let size := blocksProcessed
+                for { let height := 0x00 } lt(height, shl(0x05, KECCAK_TREE_DEPTH)) { height := add(height, 0x20) } {
+                    if and(size, 0x01) {
+                        mstore(add(branch, height), node)
+                        break
+                    }
+
+                    // Hash the node at `height` in the branch and the node together.
+                    mstore(0x00, mload(add(branch, height)))
+                    mstore(0x20, node)
+                    node := keccak256(0x00, 0x40)
+                    size := shr(0x01, size)
+                }
+            }
+        }
+
+        // Do not allow for posting preimages larger than the merkle tree can support.
+        if (blocksProcessed > MAX_LEAF_COUNT) revert TreeSizeOverflow();
+
+        // Perist the branch to storage.
+        proposalBranches[msg.sender][_uuid] = branch;
+
+        // Update the proposal metadata.
+        metaData =
+            metaData.setBlocksProcessed(uint32(blocksProcessed)).setBytesProcessed(uint32(_input.length + currentSize));
+        if (_finalize) metaData = metaData.setTimestamp(uint64(block.timestamp));
+        proposalMetadata[msg.sender][_uuid] = metaData;
+    }
+
+    /// @notice Challenge a keccak256 block that was committed to in the merkle tree.
+    function challengeLPP(
+        address _claimant,
+        uint256 _uuid,
+        LibKeccak.StateMatrix memory _stateMatrix,
+        Leaf calldata _preState,
+        bytes32[] calldata _preStateProof,
+        Leaf calldata _postState,
+        bytes32[] calldata _postStateProof
+    )
+        external
+    {
+        // Verify that both leaves are present in the merkle tree.
+        bytes32 root = getTreeRootLPP(_claimant, _uuid);
+        if (
+            !(
+                _verify(_preStateProof, root, _preState.index, _hashLeaf(_preState))
+                    && _verify(_postStateProof, root, _postState.index, _hashLeaf(_postState))
+            )
+        ) revert InvalidProof();
+
+        // Verify that the prestate passed matches the intermediate state claimed in the leaf.
+        if (keccak256(abi.encode(_stateMatrix)) != _preState.stateCommitment) revert InvalidPreimage();
+
+        // Verify that the pre/post state are contiguous.
+        if (_preState.index + 1 != _postState.index) revert StatesNotContiguous();
+
+        // Absorb and permute the input bytes.
+        LibKeccak.absorb(_stateMatrix, _postState.input);
+        LibKeccak.permutation(_stateMatrix);
+
+        // Verify that the post state hash doesn't match the expected hash.
+        if (keccak256(abi.encode(_stateMatrix)) == _postState.stateCommitment) revert PostStateMatches();
+
+        // Mark the keccak claim as countered.
+        proposalMetadata[_claimant][_uuid] = proposalMetadata[_claimant][_uuid].setCountered(true);
+    }
+
+    /// @notice Challenge the first keccak256 block that was absorbed.
+    function challengeFirstLPP(
+        address _claimant,
+        uint256 _uuid,
+        Leaf calldata _postState,
+        bytes32[] calldata _postStateProof
+    )
+        external
+    {
+        // Verify that the leaf is present in the merkle tree.
+        bytes32 root = getTreeRootLPP(_claimant, _uuid);
+        if (!_verify(_postStateProof, root, _postState.index, _hashLeaf(_postState))) revert InvalidProof();
+
+        // The poststate index must be 0 in order to challenge it with this function.
+        if (_postState.index != 0) revert StatesNotContiguous();
+
+        // Absorb and permute the input bytes into a fresh state matrix.
+        LibKeccak.StateMatrix memory stateMatrix;
+        LibKeccak.absorb(stateMatrix, _postState.input);
+        LibKeccak.permutation(stateMatrix);
+
+        // Verify that the post state hash doesn't match the expected hash.
+        if (keccak256(abi.encode(stateMatrix)) == _postState.stateCommitment) revert PostStateMatches();
+
+        // Mark the keccak claim as countered.
+        proposalMetadata[_claimant][_uuid] = proposalMetadata[_claimant][_uuid].setCountered(true);
+    }
+
+    /// @notice Finalize a large preimage proposal after the challenge period has passed.
+    function squeezeLPP(
+        address _claimant,
+        uint256 _uuid,
+        LibKeccak.StateMatrix memory _stateMatrix,
+        Leaf calldata _preState,
+        bytes32[] calldata _preStateProof,
+        Leaf calldata _postState,
+        bytes32[] calldata _postStateProof
+    )
+        external
+    {
+        LPPMetaData metaData = proposalMetadata[_claimant][_uuid];
+
+        // Check if the proposal was countered.
+        if (metaData.countered()) revert BadProposal();
+
+        // Check if the challenge period has passed since the proposal was finalized.
+        if (block.timestamp - metaData.timestamp() <= CHALLENGE_PERIOD) revert ActiveProposal();
+
+        // Verify that both leaves are present in the merkle tree.
+        bytes32 root = getTreeRootLPP(_claimant, _uuid);
+        if (
+            !(
+                _verify(_preStateProof, root, _preState.index, _hashLeaf(_preState))
+                    && _verify(_postStateProof, root, _postState.index, _hashLeaf(_postState))
+            )
+        ) revert InvalidProof();
+
+        // Verify that the prestate passed matches the intermediate state claimed in the leaf.
+        if (keccak256(abi.encode(_stateMatrix)) != _preState.stateCommitment) revert InvalidPreimage();
+
+        // Verify that the pre/post state are contiguous.
+        if (_preState.index + 1 != _postState.index || _postState.index != metaData.blocksProcessed() - 1) {
+            revert StatesNotContiguous();
+        }
+
+        // The claimed size must match the actual size of the preimage.
+        uint256 claimedSize = metaData.claimedSize();
+        if (metaData.bytesProcessed() != claimedSize) revert InvalidInputSize();
+
+        // Absorb and permute the input bytes. We perform no final verification on the state matrix here, since the
+        // proposal has passed the challenge period and is considered valid.
+        LibKeccak.absorb(_stateMatrix, _postState.input);
+        LibKeccak.permutation(_stateMatrix);
+        bytes32 finalDigest = LibKeccak.squeeze(_stateMatrix);
+
+        // Write the preimage part to the authorized preimage parts mapping.
+        uint256 partOffset = metaData.partOffset();
+        preimagePartOk[finalDigest][partOffset] = true;
+        preimageParts[finalDigest][partOffset] = proposalParts[_claimant][_uuid];
+        preimageLengths[finalDigest] = claimedSize;
+    }
+
+    /// @notice Gets the current merkle root of the large preimage proposal tree.
+    function getTreeRootLPP(address _owner, uint256 _uuid) public view returns (bytes32 treeRoot_) {
+        uint256 size = proposalMetadata[_owner][_uuid].blocksProcessed();
+        for (uint256 height = 0; height < KECCAK_TREE_DEPTH; height++) {
+            if ((size & 1) == 1) {
+                treeRoot_ = keccak256(abi.encode(proposalBranches[_owner][_uuid][height], treeRoot_));
+            } else {
+                treeRoot_ = keccak256(abi.encode(treeRoot_, zeroHashes[height]));
+            }
+            size >>= 1;
+        }
+    }
+
+    /// Check if leaf` at `index` verifies against the Merkle `root` and `branch`.
+    /// https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/beacon-chain.md#is_valid_merkle_branch
+    function _verify(
+        bytes32[] calldata _proof,
+        bytes32 _root,
+        uint256 _index,
+        bytes32 _leaf
+    )
+        internal
+        pure
+        returns (bool isValid_)
+    {
+        /// @solidity memory-safe-assembly
+        assembly {
+            function hashTwo(a, b) -> hash {
+                mstore(0x00, a)
+                mstore(0x20, b)
+                hash := keccak256(0x00, 0x40)
+            }
+
+            let value := _leaf
+            for { let i := 0x00 } lt(i, KECCAK_TREE_DEPTH) { i := add(i, 0x01) } {
+                let branchValue := calldataload(add(_proof.offset, shl(0x05, i)))
+
+                switch and(shr(i, _index), 0x01)
+                case 1 { value := hashTwo(branchValue, value) }
+                default { value := hashTwo(value, branchValue) }
+            }
+
+            isValid_ := eq(value, _root)
+        }
+    }
+
+    /// @notice Hashes leaf data for the preimage proposals tree
+    function _hashLeaf(Leaf memory _leaf) internal pure returns (bytes32 leaf_) {
+        leaf_ = keccak256(abi.encodePacked(_leaf.input, _leaf.index, _leaf.stateCommitment));
+    }
 }

packages/contracts-bedrock/src/cannon/libraries/CannonErrors.sol

@@ -3,3 +3,33 @@ pragma solidity 0.8.15;
 
 /// @notice Thrown when a passed part offset is out of bounds.
 error PartOffsetOOB();
+
+/// @notice Thrown when a merkle proof fails to verify.
+error InvalidProof();
+
+/// @notice Thrown when the prestate preimage doesn't match the claimed preimage.
+error InvalidPreimage();
+
+/// @notice Thrown when a leaf with an invalid input size is added.
+error InvalidInputSize();
+
+/// @notice Thrown when the pre and post states passed aren't contiguous.
+error StatesNotContiguous();
+
+/// @notice Thrown when the permutation yields the expected result.
+error PostStateMatches();
+
+/// @notice Thrown when the preimage is too large to fit in the tree.
+error TreeSizeOverflow();
+
+/// @notice Thrown when the preimage proposal has already been finalized.
+error AlreadyFinalized();
+
+/// @notice Thrown when the proposal has not matured past the challenge period.
+error ActiveProposal();
+
+/// @notice Thrown when attempting to finalize a proposal that has been challenged.
+error BadProposal();
+
+/// @notice Thrown when attempting to add leaves to a preimage proposal that has not been initialized.
+error NotInitialized();

packages/contracts-bedrock/src/cannon/libraries/CannonTypes.sol

+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+using LPPMetadataLib for LPPMetaData global;
+
+/// @notice Packed LPP metadata.
+/// ┌─────────────┬────────────────────────────────────────────┐
+/// │ Bit Offsets │                Description                 │
+/// ├─────────────┼────────────────────────────────────────────┤
+/// │ [0, 64)     │ Timestamp (Finalized - All data available) │
+/// │ [64, 96)    │ Part Offset                                │
+/// │ [96, 128)   │ Claimed Size                               │
+/// │ [128, 160)  │ Blocks Processed (Inclusive of Padding)    │
+/// │ [160, 192)  │ Bytes Processed (Non-inclusive of Padding) │
+/// │ [192, 256)  │ Countered                                  │
+/// └─────────────┴────────────────────────────────────────────┘
+type LPPMetaData is bytes32;
+
+/// @notice LPP metadata UDT extension functions.
+library LPPMetadataLib {
+    uint256 private constant U64_MASK = 0xFFFFFFFFFFFFFFFF;
+    uint256 private constant U32_MASK = 0xFFFFFFFF;
+
+    function setTimestamp(LPPMetaData _self, uint64 _timestamp) internal pure returns (LPPMetaData self_) {
+        assembly {
+            self_ := or(shl(192, _timestamp), and(_self, not(shl(192, U64_MASK))))
+        }
+    }
+
+    function setPartOffset(LPPMetaData _self, uint32 _partOffset) internal pure returns (LPPMetaData self_) {
+        assembly {
+            self_ := or(shl(160, _partOffset), and(_self, not(shl(160, U32_MASK))))
+        }
+    }
+
+    function setClaimedSize(LPPMetaData _self, uint32 _claimedSize) internal pure returns (LPPMetaData self_) {
+        assembly {
+            self_ := or(shl(128, _claimedSize), and(_self, not(shl(128, U32_MASK))))
+        }
+    }
+
+    function setBlocksProcessed(LPPMetaData _self, uint32 _blocksProcessed) internal pure returns (LPPMetaData self_) {
+        assembly {
+            self_ := or(shl(96, _blocksProcessed), and(_self, not(shl(96, U32_MASK))))
+        }
+    }
+
+    function setBytesProcessed(LPPMetaData _self, uint32 _bytesProcessed) internal pure returns (LPPMetaData self_) {
+        assembly {
+            self_ := or(shl(64, _bytesProcessed), and(_self, not(shl(64, U32_MASK))))
+        }
+    }
+
+    function setCountered(LPPMetaData _self, bool _countered) internal pure returns (LPPMetaData self_) {
+        assembly {
+            self_ := or(_countered, and(_self, not(U64_MASK)))
+        }
+    }
+
+    function timestamp(LPPMetaData _self) internal pure returns (uint64 timestamp_) {
+        assembly {
+            timestamp_ := shr(192, _self)
+        }
+    }
+
+    function partOffset(LPPMetaData _self) internal pure returns (uint64 partOffset_) {
+        assembly {
+            partOffset_ := and(shr(160, _self), U32_MASK)
+        }
+    }
+
+    function claimedSize(LPPMetaData _self) internal pure returns (uint32 claimedSize_) {
+        assembly {
+            claimedSize_ := and(shr(128, _self), U32_MASK)
+        }
+    }
+
+    function blocksProcessed(LPPMetaData _self) internal pure returns (uint32 blocksProcessed_) {
+        assembly {
+            blocksProcessed_ := and(shr(96, _self), U32_MASK)
+        }
+    }
+
+    function bytesProcessed(LPPMetaData _self) internal pure returns (uint32 bytesProcessed_) {
+        assembly {
+            bytesProcessed_ := and(shr(64, _self), U32_MASK)
+        }
+    }
+
+    function countered(LPPMetaData _self) internal pure returns (bool countered_) {
+        assembly {
+            countered_ := and(_self, U64_MASK)
+        }
+    }
+}

packages/contracts-bedrock/test/cannon/PreimageOracle.t.sol

 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
-import { Test } from "forge-std/Test.sol";
+import { Test, console2 as console } from "forge-std/Test.sol";
 
 import { PreimageOracle } from "src/cannon/PreimageOracle.sol";
 import { PreimageKeyLib } from "src/cannon/PreimageKeyLib.sol";
+import { LibKeccak } from "@lib-keccak/LibKeccak.sol";
+import { Bytes } from "src/libraries/Bytes.sol";
 import "src/cannon/libraries/CannonErrors.sol";
+import "src/cannon/libraries/CannonTypes.sol";
 
 contract PreimageOracle_Test is Test {
     PreimageOracle oracle;
@@ -160,3 +163,836 @@ contract PreimageOracle_Test is Test {
         oracle.readPreimage(key, offset);
     }
 }
+
+contract PreimageOracle_LargePreimageProposals_Test is Test {
+    uint256 internal constant TEST_UUID = 0xFACADE;
+
+    PreimageOracle internal oracle;
+
+    /// @notice Sets up the testing suite.
+    function setUp() public {
+        oracle = new PreimageOracle();
+        vm.label(address(oracle), "PreimageOracle");
+    }
+
+    /// @notice Tests that the `initLPP` function reverts when the part offset is out of bounds of the full preimage.
+    function test_initLPP_partOffsetOOB_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        vm.expectRevert(PartOffsetOOB.selector);
+        oracle.initLPP(TEST_UUID, 136 + 8, uint32(data.length));
+    }
+
+    /// @notice Gas snapshot for `addLeaves`
+    function test_addLeaves_gasSnapshot() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136 * 500);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+
+        // Allocate the calldata so it isn't included in the gas measurement.
+        bytes memory cd = abi.encodeCall(oracle.addLeavesLPP, (TEST_UUID, data, stateCommitments, true));
+
+        uint256 gas = gasleft();
+        (bool success,) = address(oracle).call(cd);
+        uint256 gasUsed = gas - gasleft();
+        assertTrue(success);
+
+        console.log("Gas used: %d", gasUsed);
+        console.log("Gas per byte (%d bytes streamed): %d", data.length, gasUsed / data.length);
+        console.log("Gas for 4MB: %d", (gasUsed / data.length) * 4000000);
+    }
+
+    /// @notice Tests that leaves can be added the large preimage proposal mapping and proven to be contained within
+    ///         the computed merkle root.
+    function test_addLeaves_multipleParts_succeeds() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136 * 3);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+
+        uint256 midPoint = stateCommitments.length / 2;
+        bytes32[] memory commitmentsA = new bytes32[](midPoint);
+        bytes32[] memory commitmentsB = new bytes32[](midPoint);
+        for (uint256 i = 0; i < midPoint; i++) {
+            commitmentsA[i] = stateCommitments[i];
+            commitmentsB[i] = stateCommitments[i + midPoint];
+        }
+
+        oracle.addLeavesLPP(TEST_UUID, Bytes.slice(data, 0, 136 * 2), commitmentsA, false);
+
+        // MetaData assertions
+        LPPMetaData metaData = oracle.proposalMetadata(address(this), TEST_UUID);
+        assertEq(metaData.timestamp(), 0);
+        assertEq(metaData.partOffset(), 0);
+        assertEq(metaData.claimedSize(), data.length);
+        assertEq(metaData.blocksProcessed(), 2);
+        assertEq(metaData.bytesProcessed(), 136 * 2);
+        assertFalse(metaData.countered());
+
+        oracle.addLeavesLPP(TEST_UUID, Bytes.slice(data, 136 * 2, 136), commitmentsB, true);
+
+        // MetaData assertions
+        metaData = oracle.proposalMetadata(address(this), TEST_UUID);
+        assertEq(metaData.timestamp(), 1);
+        assertEq(metaData.partOffset(), 0);
+        assertEq(metaData.claimedSize(), data.length);
+        assertEq(metaData.blocksProcessed(), 4);
+        assertEq(metaData.bytesProcessed(), data.length);
+        assertFalse(metaData.countered());
+
+        // Preimage part assertions
+        bytes32 expectedPart = bytes32((~uint256(0) & ~(uint256(type(uint64).max) << 192)) | (data.length << 192));
+        assertEq(oracle.proposalParts(address(this), TEST_UUID), expectedPart);
+
+        // Should revert if we try to add new leaves.
+        vm.expectRevert(AlreadyFinalized.selector);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+    }
+
+    /// @notice Tests that leaves cannot be added until the large preimage proposal has been initialized.
+    function test_addLeaves_notInitialized_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136 * 500);
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+
+        // Allocate the calldata so it isn't included in the gas measurement.
+        vm.expectRevert(NotInitialized.selector);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+    }
+
+    /// @notice Tests that leaves can be added the large preimage proposal mapping and finalized to be added to the
+    ///         authorized mappings.
+    function test_squeeze_challengePeriodPassed_succeeds() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        for (uint256 i = 1; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        vm.warp(block.timestamp + oracle.CHALLENGE_PERIOD() + 1 seconds);
+
+        // Finalize the proposal.
+        oracle.squeezeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: _stateMatrixAtBlockIndex(data, 1),
+            _preState: leaves[0],
+            _preStateProof: preProof,
+            _postState: leaves[1],
+            _postStateProof: postProof
+        });
+
+        bytes32 finalDigest = keccak256(data);
+        bytes32 expectedPart = bytes32((~uint256(0) & ~(uint256(type(uint64).max) << 192)) | (data.length << 192));
+        assertTrue(oracle.preimagePartOk(finalDigest, 0));
+        assertEq(oracle.preimageLengths(finalDigest), data.length);
+        assertEq(oracle.preimageParts(finalDigest, 0), expectedPart);
+    }
+
+    /// @notice Tests that a proposal cannot be finalized until it has passed the challenge period.
+    function test_squeeze_proposalChallenged_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+        bytes memory phonyData = new bytes(136);
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, phonyData, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, phonyData);
+        leaves[0].stateCommitment = stateCommitments[0];
+        leaves[1].stateCommitment = stateCommitments[1];
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        for (uint256 i = 1; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        // Should succeed since the commitment was wrong.
+        oracle.challengeFirstLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _postState: leaves[0],
+            _postStateProof: preProof
+        });
+
+        LPPMetaData metaData = oracle.proposalMetadata(address(this), TEST_UUID);
+        assertTrue(metaData.countered());
+
+        vm.warp(block.timestamp + oracle.CHALLENGE_PERIOD() + 1 seconds);
+
+        // Finalize the proposal.
+        vm.expectRevert(BadProposal.selector);
+        oracle.squeezeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: _stateMatrixAtBlockIndex(data, 1),
+            _preState: leaves[0],
+            _preStateProof: preProof,
+            _postState: leaves[1],
+            _postStateProof: postProof
+        });
+    }
+
+    /// @notice Tests that a proposal cannot be finalized until it has passed the challenge period.
+    function test_squeeze_challengePeriodActive_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Finalize the proposal.
+        vm.expectRevert(ActiveProposal.selector);
+        oracle.squeezeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: _stateMatrixAtBlockIndex(data, 1),
+            _preState: leaves[0],
+            _preStateProof: new bytes32[](16),
+            _postState: leaves[1],
+            _postStateProof: new bytes32[](16)
+        });
+    }
+
+    /// @notice Tests that a proposal cannot be finalized until it has passed the challenge period.
+    function test_squeeze_incompleteAbsorbtion_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Finalize the proposal.
+        vm.expectRevert(ActiveProposal.selector);
+        oracle.squeezeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: _stateMatrixAtBlockIndex(data, 1),
+            _preState: leaves[0],
+            _preStateProof: new bytes32[](16),
+            _postState: leaves[1],
+            _postStateProof: new bytes32[](16)
+        });
+    }
+
+    /// @notice Tests that the `squeeze` function reverts when the passed states are not contiguous.
+    function test_squeeze_statesNotContiguous_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        for (uint256 i = 1; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        vm.warp(block.timestamp + oracle.CHALLENGE_PERIOD() + 1 seconds);
+
+        // Finalize the proposal.
+        vm.expectRevert(StatesNotContiguous.selector);
+        oracle.squeezeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: _stateMatrixAtBlockIndex(data, 2),
+            _preState: leaves[1],
+            _preStateProof: postProof,
+            _postState: leaves[0],
+            _postStateProof: preProof
+        });
+    }
+
+    /// @notice Tests that the `squeeze` function reverts when the post state passed
+    function test_squeeze_invalidPreimage_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        for (uint256 i = 1; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        vm.warp(block.timestamp + oracle.CHALLENGE_PERIOD() + 1 seconds);
+
+        // Finalize the proposal.
+        vm.expectRevert(InvalidPreimage.selector);
+        oracle.squeezeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: _stateMatrixAtBlockIndex(data, 2),
+            _preState: leaves[0],
+            _preStateProof: preProof,
+            _postState: leaves[1],
+            _postStateProof: postProof
+        });
+    }
+
+    /// @notice Tests that the `squeeze` function reverts when the claimed size is not equal to the bytes processed.
+    function test_squeeze_invalidClaimedSize_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length) - 1);
+
+        // Add the leaves to the tree (2 keccak blocks.)
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        for (uint256 i = 1; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        vm.warp(block.timestamp + oracle.CHALLENGE_PERIOD() + 1 seconds);
+
+        vm.expectRevert(InvalidInputSize.selector);
+        oracle.squeezeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: _stateMatrixAtBlockIndex(data, 1),
+            _preState: leaves[0],
+            _preStateProof: preProof,
+            _postState: leaves[1],
+            _postStateProof: postProof
+        });
+    }
+
+    /// @notice Tests that a valid leaf cannot be countered with the `challengeFirst` function.
+    function test_challengeFirst_validCommitment_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory p = new bytes32[](16);
+        p[0] = _hashLeaf(leaves[1]);
+        for (uint256 i = 1; i < p.length; i++) {
+            p[i] = oracle.zeroHashes(i);
+        }
+
+        vm.expectRevert(PostStateMatches.selector);
+        oracle.challengeFirstLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _postState: leaves[0],
+            _postStateProof: p
+        });
+
+        LPPMetaData metaData = oracle.proposalMetadata(address(this), TEST_UUID);
+        assertFalse(metaData.countered());
+    }
+
+    /// @notice Tests that an invalid leaf cannot be countered with `challengeFirst` if it is not the first leaf.
+    function test_challengeFirst_statesNotContiguous_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+        bytes memory phonyData = new bytes(136);
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, phonyData, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, phonyData);
+        leaves[0].stateCommitment = stateCommitments[0];
+        leaves[1].stateCommitment = stateCommitments[1];
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory p = new bytes32[](16);
+        p[0] = _hashLeaf(leaves[0]);
+        for (uint256 i = 1; i < p.length; i++) {
+            p[i] = oracle.zeroHashes(i);
+        }
+
+        // Should succeed since the commitment was wrong.
+        vm.expectRevert(StatesNotContiguous.selector);
+        oracle.challengeFirstLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _postState: leaves[1],
+            _postStateProof: p
+        });
+    }
+
+    /// @notice Tests that an invalid leaf can be countered with the `challengeFirst` function.
+    function test_challengeFirst_invalidCommitment_succeeds() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+        bytes memory phonyData = new bytes(136);
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, phonyData, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, phonyData);
+        leaves[0].stateCommitment = stateCommitments[0];
+        leaves[1].stateCommitment = stateCommitments[1];
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory p = new bytes32[](16);
+        p[0] = _hashLeaf(leaves[1]);
+        for (uint256 i = 1; i < p.length; i++) {
+            p[i] = oracle.zeroHashes(i);
+        }
+
+        // Should succeed since the commitment was wrong.
+        oracle.challengeFirstLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _postState: leaves[0],
+            _postStateProof: p
+        });
+
+        LPPMetaData metaData = oracle.proposalMetadata(address(this), TEST_UUID);
+        assertTrue(metaData.countered());
+    }
+
+    /// @notice Tests that a valid leaf cannot be countered with the `challenge` function in the middle of the tree.
+    function test_challenge_validCommitment_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, data, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, data);
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        for (uint256 i = 1; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        LibKeccak.StateMatrix memory preMatrix = _stateMatrixAtBlockIndex(data, 1);
+
+        vm.expectRevert(PostStateMatches.selector);
+        oracle.challengeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: preMatrix,
+            _preState: leaves[0],
+            _preStateProof: preProof,
+            _postState: leaves[1],
+            _postStateProof: postProof
+        });
+
+        LPPMetaData metaData = oracle.proposalMetadata(address(this), TEST_UUID);
+        assertFalse(metaData.countered());
+    }
+
+    /// @notice Tests that an invalid leaf can not be countered with non-contiguous states.
+    function test_challenge_statesNotContiguous_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136 * 2);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+        bytes memory phonyData = new bytes(136 * 2);
+        for (uint256 i = 0; i < phonyData.length / 2; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, phonyData, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, phonyData);
+        leaves[0].stateCommitment = stateCommitments[0];
+        leaves[1].stateCommitment = stateCommitments[1];
+        leaves[2].stateCommitment = stateCommitments[2];
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        preProof[1] = keccak256(abi.encode(_hashLeaf(leaves[2]), bytes32(0)));
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        postProof[1] = keccak256(abi.encode(_hashLeaf(leaves[2]), bytes32(0)));
+        for (uint256 i = 2; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        LibKeccak.StateMatrix memory preMatrix = _stateMatrixAtBlockIndex(data, 2);
+
+        vm.expectRevert(StatesNotContiguous.selector);
+        oracle.challengeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: preMatrix,
+            _preState: leaves[1],
+            _preStateProof: postProof,
+            _postState: leaves[0],
+            _postStateProof: preProof
+        });
+    }
+
+    /// @notice Tests that an invalid leaf can not be countered with an incorrect prestate matrix reveal.
+    function test_challenge_invalidPreimage_reverts() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136 * 2);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+        bytes memory phonyData = new bytes(136 * 2);
+        for (uint256 i = 0; i < phonyData.length / 2; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, phonyData, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, phonyData);
+        leaves[0].stateCommitment = stateCommitments[0];
+        leaves[1].stateCommitment = stateCommitments[1];
+        leaves[2].stateCommitment = stateCommitments[2];
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        preProof[1] = keccak256(abi.encode(_hashLeaf(leaves[2]), bytes32(0)));
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        postProof[1] = keccak256(abi.encode(_hashLeaf(leaves[2]), bytes32(0)));
+        for (uint256 i = 2; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        LibKeccak.StateMatrix memory preMatrix = _stateMatrixAtBlockIndex(data, 2);
+
+        vm.expectRevert(InvalidPreimage.selector);
+        oracle.challengeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: preMatrix,
+            _preState: leaves[0],
+            _preStateProof: preProof,
+            _postState: leaves[1],
+            _postStateProof: postProof
+        });
+    }
+
+    /// @notice Tests that an invalid leaf can be countered with the `challenge` function in the middle of the tree.
+    function test_challenge_invalidCommitment_succeeds() public {
+        // Allocate the preimage data.
+        bytes memory data = new bytes(136 * 2);
+        for (uint256 i; i < data.length; i++) {
+            data[i] = 0xFF;
+        }
+        bytes memory phonyData = new bytes(136 * 2);
+        for (uint256 i = 0; i < phonyData.length / 2; i++) {
+            data[i] = 0xFF;
+        }
+
+        // Initialize the proposal.
+        oracle.initLPP(TEST_UUID, 0, uint32(data.length));
+
+        // Add the leaves to the tree with mismatching state commitments.
+        LibKeccak.StateMatrix memory stateMatrix;
+        bytes32[] memory stateCommitments = _generateStateCommitments(stateMatrix, data);
+        oracle.addLeavesLPP(TEST_UUID, phonyData, stateCommitments, true);
+
+        // Construct the leaf preimage data for the blocks added.
+        LibKeccak.StateMatrix memory matrix;
+        PreimageOracle.Leaf[] memory leaves = _generateLeaves(matrix, phonyData);
+        leaves[0].stateCommitment = stateCommitments[0];
+        leaves[1].stateCommitment = stateCommitments[1];
+        leaves[2].stateCommitment = stateCommitments[2];
+
+        // Create a proof array with 16 elements.
+        bytes32[] memory preProof = new bytes32[](16);
+        preProof[0] = _hashLeaf(leaves[1]);
+        preProof[1] = keccak256(abi.encode(_hashLeaf(leaves[2]), bytes32(0)));
+        bytes32[] memory postProof = new bytes32[](16);
+        postProof[0] = _hashLeaf(leaves[0]);
+        postProof[1] = keccak256(abi.encode(_hashLeaf(leaves[2]), bytes32(0)));
+        for (uint256 i = 2; i < preProof.length; i++) {
+            bytes32 zeroHash = oracle.zeroHashes(i);
+            preProof[i] = zeroHash;
+            postProof[i] = zeroHash;
+        }
+
+        LibKeccak.StateMatrix memory preMatrix = _stateMatrixAtBlockIndex(data, 1);
+
+        oracle.challengeLPP({
+            _claimant: address(this),
+            _uuid: TEST_UUID,
+            _stateMatrix: preMatrix,
+            _preState: leaves[0],
+            _preStateProof: preProof,
+            _postState: leaves[1],
+            _postStateProof: postProof
+        });
+
+        LPPMetaData metaData = oracle.proposalMetadata(address(this), TEST_UUID);
+        assertTrue(metaData.countered());
+    }
+
+    /// @notice Hashes leaf data for the preimage proposals tree
+    function _hashLeaf(PreimageOracle.Leaf memory _leaf) internal pure returns (bytes32 leaf_) {
+        leaf_ = keccak256(abi.encodePacked(_leaf.input, _leaf.index, _leaf.stateCommitment));
+    }
+
+    /// @notice Helper to construct the keccak merkle tree's leaves from a given input `_data`.
+    function _generateLeaves(
+        LibKeccak.StateMatrix memory _stateMatrix,
+        bytes memory _data
+    )
+        internal
+        pure
+        returns (PreimageOracle.Leaf[] memory leaves_)
+    {
+        bytes memory data = LibKeccak.padMemory(_data);
+        uint256 numLeaves = data.length / LibKeccak.BLOCK_SIZE_BYTES;
+
+        leaves_ = new PreimageOracle.Leaf[](numLeaves);
+        for (uint256 i = 0; i < numLeaves; i++) {
+            bytes memory blockSlice = Bytes.slice(data, i * LibKeccak.BLOCK_SIZE_BYTES, LibKeccak.BLOCK_SIZE_BYTES);
+            LibKeccak.absorb(_stateMatrix, blockSlice);
+            LibKeccak.permutation(_stateMatrix);
+            bytes32 stateCommitment = keccak256(abi.encode(_stateMatrix));
+
+            leaves_[i] = PreimageOracle.Leaf({ input: blockSlice, index: i, stateCommitment: stateCommitment });
+        }
+    }
+
+    /// @notice Helper to get the keccak state matrix before applying the block at `_blockIndex` within `_data`.
+    function _stateMatrixAtBlockIndex(
+        bytes memory _data,
+        uint256 _blockIndex
+    )
+        internal
+        pure
+        returns (LibKeccak.StateMatrix memory matrix_)
+    {
+        bytes memory data = LibKeccak.padMemory(_data);
+
+        for (uint256 i = 0; i < _blockIndex; i++) {
+            bytes memory blockSlice = Bytes.slice(data, i * LibKeccak.BLOCK_SIZE_BYTES, LibKeccak.BLOCK_SIZE_BYTES);
+            LibKeccak.absorb(matrix_, blockSlice);
+            LibKeccak.permutation(matrix_);
+        }
+    }
+
+    /// @notice Helper to construct the keccak state commitments for each block processed in the input `_data`.
+    function _generateStateCommitments(
+        LibKeccak.StateMatrix memory _stateMatrix,
+        bytes memory _data
+    )
+        internal
+        pure
+        returns (bytes32[] memory stateCommitments_)
+    {
+        bytes memory data = LibKeccak.padMemory(_data);
+        uint256 numCommitments = data.length / LibKeccak.BLOCK_SIZE_BYTES;
+
+        stateCommitments_ = new bytes32[](numCommitments);
+        for (uint256 i = 0; i < numCommitments; i++) {
+            bytes memory blockSlice = Bytes.slice(data, i * LibKeccak.BLOCK_SIZE_BYTES, LibKeccak.BLOCK_SIZE_BYTES);
+            LibKeccak.absorb(_stateMatrix, blockSlice);
+            LibKeccak.permutation(_stateMatrix);
+
+            stateCommitments_[i] = keccak256(abi.encode(_stateMatrix));
+        }
+    }
+}