PrelodeBurnRedeemer Contract

Verifies Merkle proofs of PRELODE burns on Solana and distributes LODE to claimants on Ethereum.

Constructor

constructor(address initialOwner, address _lodeToken)

Parameter	Description
`initialOwner`	Contract owner (typically a multisig)
`_lodeToken`	LODE token address (immutable after deployment)

Default exchange rate: 1e12 (1 PRELODE with 6 decimals = 1 LODE with 18 decimals).

function claimLode(bytes32[] calldata proof, uint256 totalPrelodeBurned) external nonReentrant

Claim LODE based on PRELODE burned on Solana. Uses delta claiming — only the unclaimed portion is transferred.

Parameter	Description
`proof`	Merkle proof for `(msg.sender, totalPrelodeBurned)`
`totalPrelodeBurned`	Cumulative raw PRELODE burned (6 decimals)

Merkle leaf format (OZ-compatible double-hashed):

keccak256(bytes.concat(keccak256(abi.encode(evmAddress, totalPrelodeBurned))))

function setMerkleRoot(bytes32 _root) external onlyOwner

Post a new snapshot root. Called by the snapshot service after reading Solana burn state. Root cannot be zero.

function setExchangeRate(uint256 _rate) external onlyOwner

Change the PRELODE-to-LODE conversion rate. Bounded to [1, 1e18]. Only affects unclaimed burns.

function withdrawLode(uint256 amount) external onlyOwner nonReentrant

Emergency withdrawal of LODE from the contract.

Function	Returns
`lodeToken()`	LODE token address (immutable)
`merkleRoot()`	Current Merkle root
`exchangeRate()`	Current exchange rate
`claimedPrelode(address)`	Cumulative raw PRELODE already redeemed by user

Event	Emitted When
`MerkleRootUpdated(bytes32)`	New Merkle root posted
`ExchangeRateUpdated(uint256)`	Exchange rate changed
`LodeClaimed(address, uint256, uint256)`	User claims LODE
`LodeWithdrawn(address, uint256)`	Owner withdraws LODE