false
false
0

Contract Address Details

0x19B26817B5782AFeD1436096BD34378f3fBdCd62

Contract Name
BPGToken
Creator
0x331cdb–09a67c at 0x19bb94–7002a3
Balance
0 BPX
Tokens
Fetching tokens...
Transactions
0 Transactions
Transfers
0 Transfers
Gas Used
Fetching gas used...
Last Balance Update
202023
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
BPGToken




Optimization enabled
false
Compiler version
v0.8.28+commit.7893614a




EVM Version
shanghai




Verified at
2024-12-29T14:20:07.016263Z

Contract source code

Sol2uml
new
 
// File: bitpost-contracts/contracts-common/interfaces/upgrade/IInitializable.sol



pragma solidity ^0.8.20;

interface IInitializable {
    error InitializableAlreadyInitialized();
    error InitializableRequiredVersion(uint256 currentVersion, uint256 requiredVersion);
    error InitializableMinimalVersion(uint256 currentVersion, uint256 minimalVersion);
    
    function getVersion() external view returns(uint256);
}

// File: bitpost-contracts/contracts-common/contracts/upgrade/Initializable.sol



pragma solidity ^0.8.20;


abstract contract Initializable is IInitializable {
    /// @custom:storage-location erc7201:bitpost.common.Initializable
    struct Storage_Initializable {
        uint256 version;
    }
    
    // keccak256(abi.encode(uint256(keccak256("bitpost.common.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant STORAGE_LOCATION_INITIALIZABLE = 0xf9388d16ccb89f8ceeb8bce5074db391472ebb34229a1051e19fc642d992d400;
       
    modifier initVer(uint256 version) {
        Storage_Initializable storage $ = _getStorage_Initializable();
        require($.version == 0, InitializableAlreadyInitialized());
        _;
        $.version = version;
    }
    
    modifier upVer(uint256 version) {
        Storage_Initializable storage $ = _getStorage_Initializable();
        require($.version == version - 1, InitializableRequiredVersion($.version, version - 1));
        _;
        $.version = version;
    }
    
    modifier minVer(uint256 version) {
        _checkMinVer(version);
        _;
    }
    
    function getVersion() public view returns(uint256) {
        Storage_Initializable storage $ = _getStorage_Initializable();
        return $.version;
    }
    
    function _checkMinVer(uint256 version) private view {
        Storage_Initializable storage $ = _getStorage_Initializable();
        require($.version >= version, InitializableMinimalVersion($.version, version));
    }
    
    function _getStorage_Initializable() private pure returns(Storage_Initializable storage $) {
        assembly {
            $.slot := STORAGE_LOCATION_INITIALIZABLE
        }
    }
}

// File: bitpost-contracts/contracts-common/interfaces/access/IOwnable.sol



pragma solidity ^0.8.20;

interface IOwnable {
    error OwnableUnauthorized(address sender, address owner);
    error OwnableInvalidOwner(address owner);
    
    function getOwner() external view returns(address);
    function setOwner(address owner) external;
}

// File: bitpost-contracts/contracts-common/contracts/access/Ownable.sol



pragma solidity ^0.8.20;


abstract contract Ownable is IOwnable {
    /// @custom:storage-location erc7201:bitpost.common.Ownable
    struct Storage_Ownable {
        address owner;
    }
    
    // keccak256(abi.encode(uint256(keccak256("bitpost.common.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant STORAGE_LOCATION_OWNABLE = 0xbfdc26bbaea09886fc184fe4fcae59b15cffdf4b859be87d5955dbd541465600;
    
    modifier onlyOwner() {
        _checkOwner();
        _;
    }
    
    function _init_Ownable(address owner) internal {
        _setOwner(owner);
    }
    
    function getOwner() public view returns(address) {
        Storage_Ownable storage $ = _getStorage_Ownable();
        return $.owner;
    }
    
    function setOwner(address owner) external onlyOwner {
        _setOwner(owner);
    }
    
    function _setOwner(address owner) internal {
        require(owner != address(0), OwnableInvalidOwner(address(0)));
        Storage_Ownable storage $ = _getStorage_Ownable();
        $.owner = owner;
    }
    
    function _checkOwner() private view {
        Storage_Ownable storage $ = _getStorage_Ownable();
        require(msg.sender == $.owner, OwnableUnauthorized(msg.sender, $.owner));
    }
    
    function _getStorage_Ownable() private pure returns(Storage_Ownable storage $) {
        assembly {
            $.slot := STORAGE_LOCATION_OWNABLE
        }
    }
}

// File: bitpost-contracts/contracts-bpg/interfaces/erc20/IERC20.sol



pragma solidity ^0.8.20;

interface IERC20 {
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    function totalSupply() external view returns(uint256);
    function balanceOf(address account) external view returns(uint256);
    function transfer(address to, uint256 value) external returns(bool);
    function allowance(address owner, address spender) external view returns(uint256);
    function approve(address spender, uint256 value) external returns(bool);
    function transferFrom(address from, address to, uint256 value) external returns(bool);
}
// File: bitpost-contracts/contracts-bpg/interfaces/erc20/IERC20Errors.sol



pragma solidity ^0.8.20;


interface IERC20Errors is IERC20 {
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
    error ERC20InvalidSender(address sender);
    error ERC20InvalidReceiver(address receiver);
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
    error ERC20InvalidApprover(address approver);
    error ERC20InvalidSpender(address spender);
}
// File: bitpost-contracts/contracts-bpg/interfaces/erc20/IERC20Metadata.sol



pragma solidity ^0.8.20;


interface IERC20Metadata is IERC20 {
    function name() external pure returns(string memory);
    function symbol() external pure returns(string memory);
    function decimals() external pure returns(uint8);
}
// File: bitpost-contracts/contracts-bpg/interfaces/history/IERC20History.sol



pragma solidity ^0.8.20;


interface IERC20History is IERC20 {
    error ERC20HistoryInvalidBlockNumber(uint256 blockNumber);
    
    function totalSupplyAt(uint256 blockNumber) external view returns(uint256);
    function balanceOfAt(address account, uint256 blockNumber) external view returns(uint256);
}

// File: bitpost-contracts/contracts-bpg/interfaces/IBPGToken.sol



pragma solidity ^0.8.20;







interface IBPGToken is IInitializable, IOwnable, IERC20, IERC20Errors, IERC20Metadata, IERC20History {
    function init() external;
    function mint(address account, uint256 value) external;
    function burn(uint256 value) external;
}

// File: bitpost-contracts/contracts-bpg/contracts/erc20/ERC20.sol



pragma solidity ^0.8.20;



abstract contract ERC20 is IERC20, IERC20Errors {
    /// @custom:storage-location erc7201:bitpost.bpg.ERC20
    struct Storage_ERC20 {
        uint256 totalSupply;
        mapping(address account => uint256) balances;
        mapping(address account => mapping(address spender => uint256)) allowances;
    }
    
    // keccak256(abi.encode(uint256(keccak256("bitpost.bpg.ERC20")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant STORAGE_LOCATION_ERC20 = 0xee0c2d5357d88d54dd6bbaa1b1a8910354885f2b74606115c4d95c4c54785400;
    
    function totalSupply() public view returns(uint256) {
        Storage_ERC20 storage $ = _getStorage_ERC20();
        return $.totalSupply;
    }
    
    function balanceOf(address account) public view returns(uint256) {
        Storage_ERC20 storage $ = _getStorage_ERC20();
        return $.balances[account];
    }
    
    function transfer(address to, uint256 value) external returns(bool) {
        _transfer(msg.sender, to, value);
        return true;
    }
    
    function allowance(address owner, address spender) public view returns(uint256) {
        Storage_ERC20 storage $ = _getStorage_ERC20();
        return $.allowances[owner][spender];
    }
    
    function approve(address spender, uint256 value) external returns(bool) {
        _approve(msg.sender, spender, value, true);
        return true;
    }
    
    function transferFrom(address from, address to, uint256 value) external returns(bool) {
        _spendAllowance(from, msg.sender, value);
        _transfer(from, to, value);
        return true;
    }
    
    function _transfer(address from, address to, uint256 value) internal {
        require(from != address(0), ERC20InvalidSender(address(0)));
        require(to != address(0), ERC20InvalidReceiver(address(0)));
        _update(from, to, value);
    }
    
    function _update(address from, address to, uint256 value) internal virtual {
        Storage_ERC20 storage $ = _getStorage_ERC20();
        
        if(from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            $.totalSupply += value;
        } else {
            uint256 fromBalance = $.balances[from];
            require(fromBalance >= value, ERC20InsufficientBalance(from, fromBalance, value));
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                $.balances[from] = fromBalance - value;
            }
        }

        if(to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                $.totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                $.balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }
    
    function _mint(address account, uint256 value) internal {
        require(account != address(0), ERC20InvalidReceiver(address(0)));
        _update(address(0), account, value);
    }
    
    function _burn(address account, uint256 value) internal {
        require(account != address(0), ERC20InvalidSender(address(0)));
        _update(account, address(0), value);
    }
    
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal {
        require(owner != address(0), ERC20InvalidApprover(address(0)));
        require(spender != address(0), ERC20InvalidSpender(address(0)));
        
        Storage_ERC20 storage $ = _getStorage_ERC20();
        $.allowances[owner][spender] = value;
        
        if(emitEvent) {
            emit Approval(owner, spender, value);
        }
    }
    
    function _spendAllowance(address owner, address spender, uint256 value) internal {
        uint256 currentAllowance = allowance(owner, spender);
        if(currentAllowance < type(uint256).max) {
            require(currentAllowance >= value, ERC20InsufficientAllowance(spender, currentAllowance, value));
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
    
    function _getStorage_ERC20() private pure returns(Storage_ERC20 storage $) {
        assembly {
            $.slot := STORAGE_LOCATION_ERC20
        }
    }
}

// File: bitpost-contracts/contracts-bpg/contracts/history/ERC20History.sol



pragma solidity ^0.8.20;



abstract contract ERC20History is ERC20, IERC20History {
    struct Checkpoint {
        uint256 blockNumber;
        uint256 value;
    }
    
    /// @custom:storage-location erc7201:bitpost.bpg.ERC20History
    struct Storage_ERC20History {
        mapping(address => Checkpoint[]) balanceCheckpoints;
        Checkpoint[] totalSupplyCheckpoints;
    }

    // keccak256(abi.encode(uint256(keccak256("bitpost.bpg.ERC20History")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant STORAGE_LOCATION_ERC20HISTORY = 0xfcefface2da381a8744d5670ea5451aa1e4c0f3577d2d8c35c85f1cd24665400;

    function totalSupplyAt(uint256 blockNumber) external view returns(uint256) {
        Storage_ERC20History storage $ = _getStorage_ERC20History();
        return _getCheckpoint($.totalSupplyCheckpoints, blockNumber, totalSupply());
    }

    function balanceOfAt(address account, uint256 blockNumber) external view returns(uint256) {
        Storage_ERC20History storage $ = _getStorage_ERC20History();
        return _getCheckpoint($.balanceCheckpoints[account], blockNumber, balanceOf(account));
    }

    function _update(address from, address to, uint256 value) internal virtual override {
        Storage_ERC20History storage $ = _getStorage_ERC20History();

        if(from != address(0)) {
            _maybeCreateCheckpoint($.balanceCheckpoints[from], balanceOf(from));
        }
        if(to != address(0)) {
            _maybeCreateCheckpoint($.balanceCheckpoints[to], balanceOf(to));
        }

        _maybeCreateCheckpoint($.totalSupplyCheckpoints, totalSupply());
        
        super._update(from, to, value);
    }

    function _maybeCreateCheckpoint(Checkpoint[] storage checkpoints, uint256 value) private {
        uint256 length = checkpoints.length;
        if(length == 0 || checkpoints[length - 1].blockNumber < block.number) {
            checkpoints.push(Checkpoint({
                blockNumber: block.number,
                value: value
            }));
        }
    }

    function _getCheckpoint(Checkpoint[] storage checkpoints, uint256 blockNumber, uint256 currentValue) private view returns(uint256) {
        require(blockNumber < block.number, ERC20HistoryInvalidBlockNumber(blockNumber));
        
        uint256 high = checkpoints.length;
        if(high == 0) {
            return 0;
        }
        if(checkpoints[high - 1].blockNumber <= blockNumber) {
            return currentValue;
        }

        uint256 low = 0;
        while(low < high) {
            uint256 mid = low + (high - low) / 2;
            if(checkpoints[mid].blockNumber > blockNumber) {
                high = mid;
            } else {
                unchecked {
                    low = mid + 1;
                }
            }
        }
        return checkpoints[low].value;
    }

    function _getStorage_ERC20History() private pure returns(Storage_ERC20History storage $) {
        assembly {
            $.slot := STORAGE_LOCATION_ERC20HISTORY
        }
    }
}

// File: bitpost-contracts/contracts-bpg/contracts/BPGToken.sol



pragma solidity ^0.8.20;






contract BPGToken is Initializable, Ownable, ERC20History, IBPGToken {
    function init() external initVer(1) {
        _init_Ownable(msg.sender);
    }
    
    function name() external pure returns(string memory) {
        return "Bitpost";
    }
    
    function symbol() external pure returns(string memory) {
        return "BPG";
    }
    
    function decimals() external pure returns(uint8) {
        return 6;
    }
    
    function mint(address account, uint256 value) external onlyOwner {
        _mint(account, value);
    }
    
    function burn(uint256 value) external onlyOwner {
        _burn(msg.sender, value);
    }
}

Contract ABI

[{"type":"error","name":"ERC20HistoryInvalidBlockNumber","inputs":[{"type":"uint256","name":"blockNumber","internalType":"uint256"}]},{"type":"error","name":"ERC20InsufficientAllowance","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"allowance","internalType":"uint256"},{"type":"uint256","name":"needed","internalType":"uint256"}]},{"type":"error","name":"ERC20InsufficientBalance","inputs":[{"type":"address","name":"sender","internalType":"address"},{"type":"uint256","name":"balance","internalType":"uint256"},{"type":"uint256","name":"needed","internalType":"uint256"}]},{"type":"error","name":"ERC20InvalidApprover","inputs":[{"type":"address","name":"approver","internalType":"address"}]},{"type":"error","name":"ERC20InvalidReceiver","inputs":[{"type":"address","name":"receiver","internalType":"address"}]},{"type":"error","name":"ERC20InvalidSender","inputs":[{"type":"address","name":"sender","internalType":"address"}]},{"type":"error","name":"ERC20InvalidSpender","inputs":[{"type":"address","name":"spender","internalType":"address"}]},{"type":"error","name":"InitializableAlreadyInitialized","inputs":[]},{"type":"error","name":"InitializableMinimalVersion","inputs":[{"type":"uint256","name":"currentVersion","internalType":"uint256"},{"type":"uint256","name":"minimalVersion","internalType":"uint256"}]},{"type":"error","name":"InitializableRequiredVersion","inputs":[{"type":"uint256","name":"currentVersion","internalType":"uint256"},{"type":"uint256","name":"requiredVersion","internalType":"uint256"}]},{"type":"error","name":"OwnableInvalidOwner","inputs":[{"type":"address","name":"owner","internalType":"address"}]},{"type":"error","name":"OwnableUnauthorized","inputs":[{"type":"address","name":"sender","internalType":"address"},{"type":"address","name":"owner","internalType":"address"}]},{"type":"event","name":"Approval","inputs":[{"type":"address","name":"owner","internalType":"address","indexed":true},{"type":"address","name":"spender","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Transfer","inputs":[{"type":"address","name":"from","internalType":"address","indexed":true},{"type":"address","name":"to","internalType":"address","indexed":true},{"type":"uint256","name":"value","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"allowance","inputs":[{"type":"address","name":"owner","internalType":"address"},{"type":"address","name":"spender","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"approve","inputs":[{"type":"address","name":"spender","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balanceOf","inputs":[{"type":"address","name":"account","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"balanceOfAt","inputs":[{"type":"address","name":"account","internalType":"address"},{"type":"uint256","name":"blockNumber","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"burn","inputs":[{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint8","name":"","internalType":"uint8"}],"name":"decimals","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"getOwner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getVersion","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"init","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"mint","inputs":[{"type":"address","name":"account","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"name","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setOwner","inputs":[{"type":"address","name":"owner","internalType":"address"}]},{"type":"function","stateMutability":"pure","outputs":[{"type":"string","name":"","internalType":"string"}],"name":"symbol","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalSupply","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"totalSupplyAt","inputs":[{"type":"uint256","name":"blockNumber","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transfer","inputs":[{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"bool","name":"","internalType":"bool"}],"name":"transferFrom","inputs":[{"type":"address","name":"from","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"value","internalType":"uint256"}]}]

Contract Creation Code

Verify & Publish 
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