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ERC-20
Overview
Max Total Supply
304,955.827383960071596188 EXY
Holders
627
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
Balance
200 EXYValue
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Source Code Verified (Exact Match)
Contract Name:
EthXYToken
Compiler Version
vyper:0.3.9
Contract Source Code (Vyper language format)
# @version ^0.3.9 # @title EthXYToken from vyper.interfaces import ERC20 implements: ERC20 event Transfer: _from: indexed(address) _to: indexed(address) _value: uint256 event Approval: _owner: indexed(address) _spender: indexed(address) _value: uint256 name: public(immutable(String[10])) symbol: public(immutable(String[3])) decimals: public(constant(uint256)) = 18 totalSupply: public(uint256) balanceOf: public(HashMap[address, uint256]) allowance: public(HashMap[address, HashMap[address, uint256]]) minter: public(address) burner: public(address) @external def __init__(): name = "EthXYToken" symbol = "EXY" self.minter = msg.sender self.burner = msg.sender @external def set_minter(minter: address): assert msg.sender == self.minter self.minter = minter @external def set_burner(burner: address): assert msg.sender == self.burner self.burner = burner @external def approve(spender: address, amount: uint256) -> bool: self.allowance[msg.sender][spender] = amount log Approval(msg.sender, spender, amount) return True @external def increaseAllowance(spender: address, addedValue: uint256) -> bool: self.allowance[msg.sender][spender] += addedValue log Approval(msg.sender, spender, self.allowance[msg.sender][spender]) return True @external def decreaseAllowance(spender: address, subtractedValue: uint256) -> bool: self.allowance[msg.sender][spender] -= subtractedValue log Approval(msg.sender, spender, self.allowance[msg.sender][spender]) return True @external def transfer(_to: address, _value: uint256) -> bool: self.balanceOf[msg.sender] -= _value self.balanceOf[_to] += _value log Transfer(msg.sender, _to, _value) return True @external def transferFrom(_from: address, _to: address, _value: uint256) -> bool: self.allowance[_from][msg.sender] -= _value self.balanceOf[_from] -= _value self.balanceOf[_to] += _value log Transfer(_from, _to, _value) return True @external def mint(_to: address, _value: uint256): assert msg.sender == self.minter self.balanceOf[_to] += _value self.totalSupply += _value log Transfer(ZERO_ADDRESS, _to, _value) @external def burn(_value: uint256): assert msg.sender == self.burner self.balanceOf[msg.sender] -= _value self.totalSupply -= _value log Transfer(msg.sender, ZERO_ADDRESS, _value) ################################################################ # EIP-2612 # ################################################################ nonces: public(HashMap[address, uint256]) _DOMAIN_TYPEHASH: constant(bytes32) = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)") _PERMIT_TYPE_HASH: constant(bytes32) = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)") @external def permit(owner: address, spender: address, amount: uint256, deadline: uint256, v: uint8, r: bytes32, s: bytes32): assert deadline >= block.timestamp nonce: uint256 = self.nonces[owner] self.nonces[owner] = nonce + 1 domain_separator: bytes32 = keccak256( _abi_encode(_DOMAIN_TYPEHASH, name, "1.0", chain.id, self) ) struct_hash: bytes32 = keccak256(_abi_encode(_PERMIT_TYPE_HASH, owner, spender, amount, nonce, deadline)) hash: bytes32 = keccak256( concat( b"\x19\x01", domain_separator, struct_hash ) ) assert owner == ecrecover(hash, v, r, s) self.nonces[owner] += 1 self.allowance[owner][spender] = amount log Approval(owner, spender, amount) @internal def _mint(_to: address, _value: uint256): self.balanceOf[_to] += _value self.totalSupply += _value log Transfer(ZERO_ADDRESS, _to, _value) @internal def _burn(_from: address, _value: uint256): assert self.balanceOf[_from] >= _value self.balanceOf[_from] -= _value self.totalSupply -= _value log Transfer(_from, ZERO_ADDRESS, _value)
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"name":"Transfer","inputs":[{"name":"_from","type":"address","indexed":true},{"name":"_to","type":"address","indexed":true},{"name":"_value","type":"uint256","indexed":false}],"anonymous":false,"type":"event"},{"name":"Approval","inputs":[{"name":"_owner","type":"address","indexed":true},{"name":"_spender","type":"address","indexed":true},{"name":"_value","type":"uint256","indexed":false}],"anonymous":false,"type":"event"},{"stateMutability":"nonpayable","type":"constructor","inputs":[],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"set_minter","inputs":[{"name":"minter","type":"address"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"set_burner","inputs":[{"name":"burner","type":"address"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"approve","inputs":[{"name":"spender","type":"address"},{"name":"amount","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"increaseAllowance","inputs":[{"name":"spender","type":"address"},{"name":"addedValue","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"decreaseAllowance","inputs":[{"name":"spender","type":"address"},{"name":"subtractedValue","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"transfer","inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"transferFrom","inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"mint","inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"burn","inputs":[{"name":"_value","type":"uint256"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"permit","inputs":[{"name":"owner","type":"address"},{"name":"spender","type":"address"},{"name":"amount","type":"uint256"},{"name":"deadline","type":"uint256"},{"name":"v","type":"uint8"},{"name":"r","type":"bytes32"},{"name":"s","type":"bytes32"}],"outputs":[]},{"stateMutability":"view","type":"function","name":"name","inputs":[],"outputs":[{"name":"","type":"string"}]},{"stateMutability":"view","type":"function","name":"symbol","inputs":[],"outputs":[{"name":"","type":"string"}]},{"stateMutability":"view","type":"function","name":"decimals","inputs":[],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"view","type":"function","name":"totalSupply","inputs":[],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"view","type":"function","name":"balanceOf","inputs":[{"name":"arg0","type":"address"}],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"view","type":"function","name":"allowance","inputs":[{"name":"arg0","type":"address"},{"name":"arg1","type":"address"}],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"view","type":"function","name":"minter","inputs":[],"outputs":[{"name":"","type":"address"}]},{"stateMutability":"view","type":"function","name":"burner","inputs":[],"outputs":[{"name":"","type":"address"}]},{"stateMutability":"view","type":"function","name":"nonces","inputs":[{"name":"arg0","type":"address"}],"outputs":[{"name":"","type":"uint256"}]}]
Contract Creation Code
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Deployed Bytecode
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