Fluence Drop 简述

FLT 相关合约地址

• FLT-Drop 合约地址: 0x6081d7F04a8c31e929f25152d4ad37c83638C62b
• FLT-Drop Token 简述: Fluence Drop (FLT-DROP) Token Tracker | Etherscan
• FLT 合约地址：0x236501327e701692a281934230AF0b6BE8Df3353
• FLT Token 简述: Fluence (FLT) Token Tracker | Etherscan FLT 的交易
• UniswapV3: https://app.uniswap.org/explore/tokens/ethereum/0x236501327e701692a281934230af0b6be8df3353
  • LP: 为 Uniswap 上的矿池提供流动性
• GateIO: Cryptocurrency Prices | Crypto & Coin Market Cap | Gate.io 在本地 Claim FLT Drop 的 Gist
• FLT DROP (github.com)

FLT Drop 合约代码分析

相关核心代码位于 DevRewardDistributor.sol

claimTokens 用于验证用户提交的 proof，并兑现FLT-Drop 奖励

	function claimTokens(
		uint32 userId,
		bytes32[] calldata merkleProof,
		address temporaryAddress,
		bytes calldata signature
	) external whenClaimingIs(true) {
		require(!isClaimed(userId), "Tokens already claimed");
		require(lockedBalances[msg.sender].unlockTime == 0, "Tokens are already locked");
		uint256 amount = currentReward();
		uint256 claimedSupply_ = claimedSupply;
		require(claimedSupply_ + amount \<= maxClaimedSupply, "Total claimed exceeded max limit");
		bytes32 leaf = keccak256(abi.encodePacked(userId, temporaryAddress));
		require(MerkleProof.verify(merkleProof, merkleRoot, leaf), "Valid proof required");
		bytes32 msgHash = keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n20", msg.sender));
		address signer = ECDSA.recover(msgHash, signature);
		require(signer == temporaryAddress, "Invalid signature");
		_setClaimed(userId);
		lockedBalances[msg.sender] = LockedBalance({amount: amount, unlockTime: block.timestamp + lockupPeriod});
		_totalSupply += amount;
		claimedSupply = claimedSupply_ + amount;
		emit Transfer(address(0x00), msg.sender, amount);
		emit Claimed(userId, msg.sender, amount, leaf);
	}

transfer 用于将FLT-Drop 兑换成 FLT 第三个 require 约束了当前的 blocktime 必须大于 unlockTime

	function transfer(address to, uint256 value) external returns (bool) {
		require(value \> 0, "Value is 0");
		require(lockedBalances[msg.sender].amount == value, "Invalid amount");
		require(block.timestamp \> lockedBalances[msg.sender].unlockTime, "Tokens are locked");
 
		lockedBalances[msg.sender].amount = 0;
		_totalSupply -= value;
		IERC20(token).safeTransfer(msg.sender, value);
		emit Transfer(msg.sender, address(0x00), value);
 
		return true;
	}
 

合约 constructor 中的核心参数

constructor(
	FluenceToken _token,
	Executor _executor,
	bytes32 _merkleRoot,
	uint256 _halvePeriod,
	uint256 _lockupPeriod,
	uint256 _initialReward,
	uint256 _claimingPeriod,
	address _canceler,
	uint256 _maxClaimedSupply
)

---

FLT Drop 合约初始参数分析

合约创建于 0xa71c**754068 Ethereum Transaction Hash (Txhash) Details | Etherscan

简单根据关键参数逆向一下，可以得知合约初始化时的一些关键参数

000000000000000000000000236501327e701692a281934230af0b6be8df3353	#FLT token address
000000000000000000000000f5693bbe961f166a2fe96094d25567f7517f27b7	#_executor
9054c3420799d2857b3706ca310823473c3b76dd666412134952aeba279e888a	#_merkleRoot
000000000000000000000000000000000000000000000000000000000076a700	#_halvePeriod --\> 2160h==90day
00000000000000000000000000000000000000000000000000000000004f1a00	#_lockupPeriod --\> 1440h==60day
00000000000000000000000000000000000000000000010f0cf064dd59200000	#initialReward
0000000000000000000000000000000000000000000000000000000001e13380	#claimingPeriod
0000000000000000000000007f629403fdcc02ad83aa5debd1d4b1548982afac	#_caceler
000000000000000000000000000000000000000000295be96e64066972000000	#_maxclaimedSupply