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Contract Address Details

Contract

0x0000000000000000000000000000000000001000

Creator

0x000000-000000 at txn 0x000000...001000

Balance

0.27 @G ($0.0)

Tokens

0 Tokens

$0.0 USD

Transactions

27 transactions

Balance changes

Gas Used

Last Balance Update

#445

Code

Contract Source Code Verified

Contract NameFeeContract

Compiler Versionv0.8.19+commit.7dd6d404

Optimization EnabledYes

Other SettingsDefault evmVersion

Contract Source Code (Solidity)

1
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.6;
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abstract contract Context {
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    function _msgSender() internal view virtual returns (address) {
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        return msg.sender;
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    }
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    function _msgData() internal view virtual returns (bytes calldata) {
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        return msg.data;
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    }
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}
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abstract contract Ownable is Context {
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    address private _owner;
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    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
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    constructor() {
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        _setOwner(_msgSender());
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    }
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    function owner() public view virtual returns (address) {
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        return _owner;
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    }
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    modifier onlyOwner() {
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        require(owner() == _msgSender(), "Ownable: caller is not the owner");
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        _;
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    }
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    function renounceOwnership() public virtual onlyOwner {
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        _setOwner(address(0));
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    }
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    function transferOwnership(address newOwner) public virtual onlyOwner {
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        require(newOwner != address(0), "Ownable: new owner is the zero address");
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        _setOwner(newOwner);
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    }
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    function _setOwner(address newOwner) private {
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        address oldOwner = _owner;
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        _owner = newOwner;
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        emit OwnershipTransferred(oldOwner, newOwner);
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    }
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}
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contract FeeContract is Ownable {
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    uint public initialFee;
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    mapping(address => bool) public paidFee;
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    mapping(address => uint) public paidFeeBlock;
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    event AccountActivated(address indexed account);
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    event ActivationFeeChanged(uint indexed previousFee, uint indexed newFee);
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    function changeFee(uint newFee) external onlyOwner {
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        uint previousFee = initialFee;
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        initialFee = newFee;
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        emit ActivationFeeChanged(previousFee, newFee);
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    }
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    function pay() external payable {
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        address sender = msg.sender;
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        uint value = msg.value;
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        require(paidFee[sender] != true, "G000");
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        require(value >= initialFee, "G001");
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        paidFee[sender] = true;
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        paidFeeBlock[sender] = block.number;
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        if (value > initialFee) {
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            payable(sender).transfer(value - initialFee);
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        }
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        emit AccountActivated(sender);
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    }
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}

Contract ABI

[{"name": "AccountActivated", "type": "event", "inputs": [{"name": "account", "type": "address", "indexed": true, "internalType": "address"}], "anonymous": false}, {"name": "ActivationFeeChanged", "type": "event", "inputs": [{"name": "previousFee", "type": "uint256", "indexed": true, "internalType": "uint256"}, {"name": "newFee", "type": "uint256", "indexed": true, "internalType": "uint256"}], "anonymous": false}, {"name": "OwnershipTransferred", "type": "event", "inputs": [{"name": "previousOwner", "type": "address", "indexed": true, "internalType": "address"}, {"name": "newOwner", "type": "address", "indexed": true, "internalType": "address"}], "anonymous": false}, {"name": "changeFee", "type": "function", "inputs": [{"name": "newFee", "type": "uint256", "internalType": "uint256"}], "outputs": [], "stateMutability": "nonpayable"}, {"name": "initialFee", "type": "function", "inputs": [], "outputs": [{"name": "", "type": "uint256", "internalType": "uint256"}], "stateMutability": "view"}, {"name": "owner", "type": "function", "inputs": [], "outputs": [{"name": "", "type": "address", "internalType": "address"}], "stateMutability": "view"}, {"name": "paidFee", "type": "function", "inputs": [{"name": "", "type": "address", "internalType": "address"}], "outputs": [{"name": "", "type": "bool", "internalType": "bool"}], "stateMutability": "view"}, {"name": "paidFeeBlock", "type": "function", "inputs": [{"name": "", "type": "address", "internalType": "address"}], "outputs": [{"name": "", "type": "uint256", "internalType": "uint256"}], "stateMutability": "view"}, {"name": "pay", "type": "function", "inputs": [], "outputs": [], "stateMutability": "payable"}, {"name": "renounceOwnership", "type": "function", "inputs": [], "outputs": [], "stateMutability": "nonpayable"}, {"name": "transferOwnership", "type": "function", "inputs": [{"name": "newOwner", "type": "address", "internalType": "address"}], "outputs": [], "stateMutability": "nonpayable"}]

Contract Creation Code

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