加密支付。信用可计算。

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract CryptomeGuaranty {
    // 7-day withdrawal delay
    uint256 constant WITHDRAWAL_DELAY = 7 days;

    // Merchant deposits
    mapping(address => uint256) deposits;

    // Request withdrawal (starts cooldown)
    function requestWithdrawal(
        uint256 amount
    ) external {
        require(deposits[msg.sender] >= amount);
        pendingWithdrawals[msg.sender] =
            WithdrawalRequest(amount,
            block.timestamp + WITHDRAWAL_DELAY);
    }

    // Slash merchant for dispute (platform only)
    function slash(
        address merchant,
        uint256 amount,
        address recipient
    ) external onlyOwner {
        deposits[merchant] -= amount;
        token.transfer(recipient, amount);
    }
}