{ "address": "0x66d592cc979d441A3E4dbb6E043C3bDaD241DAb7", "abi": [ { "inputs": [ { "internalType": "address", "name": "_signer", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "spender", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "signer", "type": "address" } ], "name": "ChangeSigner", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "bytes32", "name": "id", "type": "bytes32" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" } ], "name": "Claim", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "uint256", "name": "weiAmount", "type": "uint256" } ], "name": "DividendsDistributed", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "account", "type": "address" }, { "indexed": false, "internalType": "bool", "name": "blacklisted", "type": "bool" } ], "name": "SetBlacklisted", "type": "event" }, { "anonymous": false, "inputs": [], "name": "Start", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "weiAmount", "type": "uint256" } ], "name": "Withdraw", "type": "event" }, { "inputs": [], "name": "FINAL_ERA", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "HALVING_PERIOD", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "MAGNITUDE", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "accumulativeDividendOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" } ], "name": "allowance", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "approve", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "blacklisted", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "burn", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "_signer", "type": "address" } ], "name": "changeSigner", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "id", "type": "bytes32" }, { "internalType": "uint8", "name": "v", "type": "uint8" }, { "internalType": "bytes32", "name": "r", "type": "bytes32" }, { "internalType": "bytes32", "name": "s", "type": "bytes32" } ], "name": "claim", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "currentHalvingEra", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "decimals", "outputs": [ { "internalType": "uint8", "name": "", "type": "uint8" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "subtractedValue", "type": "uint256" } ], "name": "decreaseAllowance", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "addedValue", "type": "uint256" } ], "name": "increaseAllowance", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "name", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "bool", "name": "_blacklisted", "type": "bool" } ], "name": "setBlacklisted", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "signer", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "start", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "startedAt", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "totalSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "transfer", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "withdrawDividend", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "withdrawableDividendOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "withdrawnDividendOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" } ], "transactionHash": "0x1fbd31e1db7d02bddf17acbc7f4c53429215dff2ee3f0fdbf3ac0dc45c0b471b", "receipt": { "to": null, "from": "0x5b8C253517b6Bd003369173109693B01cb6841B5", "contractAddress": "0x66d592cc979d441A3E4dbb6E043C3bDaD241DAb7", "transactionIndex": 121, "gasUsed": "1714873", "logsBloom": 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"{\"compiler\":{\"version\":\"0.8.13+commit.abaa5c0e\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_signer\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"signer\",\"type\":\"address\"}],\"name\":\"ChangeSigner\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"bytes32\",\"name\":\"id\",\"type\":\"bytes32\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"}],\"name\":\"Claim\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"weiAmount\",\"type\":\"uint256\"}],\"name\":\"DividendsDistributed\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"bool\",\"name\":\"blacklisted\",\"type\":\"bool\"}],\"name\":\"SetBlacklisted\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[],\"name\":\"Start\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"weiAmount\",\"type\":\"uint256\"}],\"name\":\"Withdraw\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"FINAL_ERA\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"HALVING_PERIOD\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"MAGNITUDE\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"accumulativeDividendOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"blacklisted\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"burn\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_signer\",\"type\":\"address\"}],\"name\":\"changeSigner\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"id\",\"type\":\"bytes32\"},{\"internalType\":\"uint8\",\"name\":\"v\",\"type\":\"uint8\"},{\"internalType\":\"bytes32\",\"name\":\"r\",\"type\":\"bytes32\"},{\"internalType\":\"bytes32\",\"name\":\"s\",\"type\":\"bytes32\"}],\"name\":\"claim\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"currentHalvingEra\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"subtractedValue\",\"type\":\"uint256\"}],\"name\":\"decreaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"addedValue\",\"type\":\"uint256\"}],\"name\":\"increaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"_blacklisted\",\"type\":\"bool\"}],\"name\":\"setBlacklisted\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"signer\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"start\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"startedAt\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"withdrawDividend\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"withdrawableDividendOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"withdrawnDividendOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"details\":\"A mintable ERC20 token that allows anyone to pay and distribute ZERO to token holders as dividends and allows token holders to withdraw their dividends. Reference: https://github.com/Roger-Wu/erc1726-dividend-paying-token/blob/master/contracts/DividendPayingToken.sol\",\"events\":{\"DividendsDistributed(uint256)\":{\"details\":\"This event MUST emit when ZERO is distributed to token holders.\",\"params\":{\"weiAmount\":\"The amount of distributed ZERO in wei.\"}},\"Withdraw(address,uint256)\":{\"details\":\"This event MUST emit when an address withdraws their dividend.\",\"params\":{\"to\":\"The address which withdraws ZERO from this contract.\",\"weiAmount\":\"The amount of withdrawn ZERO in wei.\"}}},\"kind\":\"dev\",\"methods\":{\"accumulativeDividendOf(address)\":{\"details\":\"accumulativeDividendOf(account) = withdrawableDividendOf(account) + withdrawnDividendOf(account) = (magnifiedDividendPerShare * balanceOf(account) + magnifiedDividendCorrections[account]) / magnitude\",\"params\":{\"account\":\"The address of a token holder.\"},\"returns\":{\"_0\":\"The amount of dividend in wei that `account` has earned in total.\"}},\"allowance(address,address)\":{\"details\":\"See {IERC20-allowance}.\"},\"approve(address,uint256)\":{\"details\":\"See {IERC20-approve}. NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on `transferFrom`. This is semantically equivalent to an infinite approval. Requirements: - `spender` cannot be the zero address.\"},\"balanceOf(address)\":{\"details\":\"See {IERC20-balanceOf}.\"},\"burn(uint256)\":{\"details\":\"External function that burns an amount of the token of a given account. Update magnifiedDividendCorrections to keep dividends unchanged.\",\"params\":{\"value\":\"The amount that will be burnt.\"}},\"decimals()\":{\"details\":\"Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5.05` (`505 / 10 ** 2`). Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei. This is the value {ERC20} uses, unless this function is overridden; NOTE: This information is only used for _display_ purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}.\"},\"decreaseAllowance(address,uint256)\":{\"details\":\"Atomically decreases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `subtractedValue`.\"},\"increaseAllowance(address,uint256)\":{\"details\":\"Atomically increases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address.\"},\"name()\":{\"details\":\"Returns the name of the token.\"},\"owner()\":{\"details\":\"Returns the address of the current owner.\"},\"renounceOwnership()\":{\"details\":\"Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.\"},\"symbol()\":{\"details\":\"Returns the symbol of the token, usually a shorter version of the name.\"},\"totalSupply()\":{\"details\":\"See {IERC20-totalSupply}.\"},\"transfer(address,uint256)\":{\"details\":\"See {IERC20-transfer}. Requirements: - `to` cannot be the zero address. - the caller must have a balance of at least `amount`.\"},\"transferFrom(address,address,uint256)\":{\"details\":\"See {IERC20-transferFrom}. Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}. NOTE: Does not update the allowance if the current allowance is the maximum `uint256`. Requirements: - `from` and `to` cannot be the zero address. - `from` must have a balance of at least `amount`. - the caller must have allowance for ``from``'s tokens of at least `amount`.\"},\"transferOwnership(address)\":{\"details\":\"Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner.\"},\"withdrawDividend()\":{\"details\":\"It emits a `Withdraw` event if the amount of withdrawn ZERO is greater than 0.\"},\"withdrawableDividendOf(address)\":{\"params\":{\"account\":\"The address of a token holder.\"},\"returns\":{\"_0\":\"The amount of dividend in wei that `account` can withdraw.\"}},\"withdrawnDividendOf(address)\":{\"params\":{\"account\":\"The address of a token holder.\"},\"returns\":{\"_0\":\"The amount of dividend in wei that `account` has withdrawn.\"}}},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{\"accumulativeDividendOf(address)\":{\"notice\":\"View the amount of dividend in wei that an address has earned in total.\"},\"withdrawDividend()\":{\"notice\":\"Withdraws dividends distributed to the sender.\"},\"withdrawableDividendOf(address)\":{\"notice\":\"View the amount of dividend in wei that an address can withdraw.\"},\"withdrawnDividendOf(address)\":{\"notice\":\"View the amount of dividend in wei that an address has withdrawn.\"}},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/ZeroMoney.sol\":\"ZeroMoney\"},\"evmVersion\":\"london\",\"libraries\":{\":__CACHE_BREAKER__\":\"0x00000000d41867734bbee4c6863d9255b2b06ac1\"},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/access/Ownable.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../utils/Context.sol\\\";\\n\\n/**\\n * @dev Contract module which provides a basic access control mechanism, where\\n * there is an account (an owner) that can be granted exclusive access to\\n * specific functions.\\n *\\n * By default, the owner account will be the one that deploys the contract. This\\n * can later be changed with {transferOwnership}.\\n *\\n * This module is used through inheritance. It will make available the modifier\\n * `onlyOwner`, which can be applied to your functions to restrict their use to\\n * the owner.\\n */\\nabstract contract Ownable is Context {\\n address private _owner;\\n\\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\\n\\n /**\\n * @dev Initializes the contract setting the deployer as the initial owner.\\n */\\n constructor() {\\n _transferOwnership(_msgSender());\\n }\\n\\n /**\\n * @dev Returns the address of the current owner.\\n */\\n function owner() public view virtual returns (address) {\\n return _owner;\\n }\\n\\n /**\\n * @dev Throws if called by any account other than the owner.\\n */\\n modifier onlyOwner() {\\n require(owner() == _msgSender(), \\\"Ownable: caller is not the owner\\\");\\n _;\\n }\\n\\n /**\\n * @dev Leaves the contract without owner. It will not be possible to call\\n * `onlyOwner` functions anymore. Can only be called by the current owner.\\n *\\n * NOTE: Renouncing ownership will leave the contract without an owner,\\n * thereby removing any functionality that is only available to the owner.\\n */\\n function renounceOwnership() public virtual onlyOwner {\\n _transferOwnership(address(0));\\n }\\n\\n /**\\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n * Can only be called by the current owner.\\n */\\n function transferOwnership(address newOwner) public virtual onlyOwner {\\n require(newOwner != address(0), \\\"Ownable: new owner is the zero address\\\");\\n _transferOwnership(newOwner);\\n }\\n\\n /**\\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\\n * Internal function without access restriction.\\n */\\n function _transferOwnership(address newOwner) internal virtual {\\n address oldOwner = _owner;\\n _owner = newOwner;\\n emit OwnershipTransferred(oldOwner, newOwner);\\n }\\n}\\n\",\"keccak256\":\"0x24e0364e503a9bbde94c715d26573a76f14cd2a202d45f96f52134ab806b67b9\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/ERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"./IERC20.sol\\\";\\nimport \\\"./extensions/IERC20Metadata.sol\\\";\\nimport \\\"../../utils/Context.sol\\\";\\n\\n/**\\n * @dev Implementation of the {IERC20} interface.\\n *\\n * This implementation is agnostic to the way tokens are created. This means\\n * that a supply mechanism has to be added in a derived contract using {_mint}.\\n * For a generic mechanism see {ERC20PresetMinterPauser}.\\n *\\n * TIP: For a detailed writeup see our guide\\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\\n * to implement supply mechanisms].\\n *\\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\\n * instead returning `false` on failure. This behavior is nonetheless\\n * conventional and does not conflict with the expectations of ERC20\\n * applications.\\n *\\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\\n * This allows applications to reconstruct the allowance for all accounts just\\n * by listening to said events. Other implementations of the EIP may not emit\\n * these events, as it isn't required by the specification.\\n *\\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\\n * functions have been added to mitigate the well-known issues around setting\\n * allowances. See {IERC20-approve}.\\n */\\ncontract ERC20 is Context, IERC20, IERC20Metadata {\\n mapping(address => uint256) private _balances;\\n\\n mapping(address => mapping(address => uint256)) private _allowances;\\n\\n uint256 private _totalSupply;\\n\\n string private _name;\\n string private _symbol;\\n\\n /**\\n * @dev Sets the values for {name} and {symbol}.\\n *\\n * The default value of {decimals} is 18. To select a different value for\\n * {decimals} you should overload it.\\n *\\n * All two of these values are immutable: they can only be set once during\\n * construction.\\n */\\n constructor(string memory name_, string memory symbol_) {\\n _name = name_;\\n _symbol = symbol_;\\n }\\n\\n /**\\n * @dev Returns the name of the token.\\n */\\n function name() public view virtual override returns (string memory) {\\n return _name;\\n }\\n\\n /**\\n * @dev Returns the symbol of the token, usually a shorter version of the\\n * name.\\n */\\n function symbol() public view virtual override returns (string memory) {\\n return _symbol;\\n }\\n\\n /**\\n * @dev Returns the number of decimals used to get its user representation.\\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\\n *\\n * Tokens usually opt for a value of 18, imitating the relationship between\\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\\n * overridden;\\n *\\n * NOTE: This information is only used for _display_ purposes: it in\\n * no way affects any of the arithmetic of the contract, including\\n * {IERC20-balanceOf} and {IERC20-transfer}.\\n */\\n function decimals() public view virtual override returns (uint8) {\\n return 18;\\n }\\n\\n /**\\n * @dev See {IERC20-totalSupply}.\\n */\\n function totalSupply() public view virtual override returns (uint256) {\\n return _totalSupply;\\n }\\n\\n /**\\n * @dev See {IERC20-balanceOf}.\\n */\\n function balanceOf(address account) public view virtual override returns (uint256) {\\n return _balances[account];\\n }\\n\\n /**\\n * @dev See {IERC20-transfer}.\\n *\\n * Requirements:\\n *\\n * - `to` cannot be the zero address.\\n * - the caller must have a balance of at least `amount`.\\n */\\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\\n address owner = _msgSender();\\n _transfer(owner, to, amount);\\n return true;\\n }\\n\\n /**\\n * @dev See {IERC20-allowance}.\\n */\\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\\n return _allowances[owner][spender];\\n }\\n\\n /**\\n * @dev See {IERC20-approve}.\\n *\\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\\n * `transferFrom`. This is semantically equivalent to an infinite approval.\\n *\\n * Requirements:\\n *\\n * - `spender` cannot be the zero address.\\n */\\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\\n address owner = _msgSender();\\n _approve(owner, spender, amount);\\n return true;\\n }\\n\\n /**\\n * @dev See {IERC20-transferFrom}.\\n *\\n * Emits an {Approval} event indicating the updated allowance. This is not\\n * required by the EIP. See the note at the beginning of {ERC20}.\\n *\\n * NOTE: Does not update the allowance if the current allowance\\n * is the maximum `uint256`.\\n *\\n * Requirements:\\n *\\n * - `from` and `to` cannot be the zero address.\\n * - `from` must have a balance of at least `amount`.\\n * - the caller must have allowance for ``from``'s tokens of at least\\n * `amount`.\\n */\\n function transferFrom(\\n address from,\\n address to,\\n uint256 amount\\n ) public virtual override returns (bool) {\\n address spender = _msgSender();\\n _spendAllowance(from, spender, amount);\\n _transfer(from, to, amount);\\n return true;\\n }\\n\\n /**\\n * @dev Atomically increases the allowance granted to `spender` by the caller.\\n *\\n * This is an alternative to {approve} that can be used as a mitigation for\\n * problems described in {IERC20-approve}.\\n *\\n * Emits an {Approval} event indicating the updated allowance.\\n *\\n * Requirements:\\n *\\n * - `spender` cannot be the zero address.\\n */\\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\\n address owner = _msgSender();\\n _approve(owner, spender, _allowances[owner][spender] + addedValue);\\n return true;\\n }\\n\\n /**\\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\\n *\\n * This is an alternative to {approve} that can be used as a mitigation for\\n * problems described in {IERC20-approve}.\\n *\\n * Emits an {Approval} event indicating the updated allowance.\\n *\\n * Requirements:\\n *\\n * - `spender` cannot be the zero address.\\n * - `spender` must have allowance for the caller of at least\\n * `subtractedValue`.\\n */\\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\\n address owner = _msgSender();\\n uint256 currentAllowance = _allowances[owner][spender];\\n require(currentAllowance >= subtractedValue, \\\"ERC20: decreased allowance below zero\\\");\\n unchecked {\\n _approve(owner, spender, currentAllowance - subtractedValue);\\n }\\n\\n return true;\\n }\\n\\n /**\\n * @dev Moves `amount` of tokens from `sender` to `recipient`.\\n *\\n * This internal function is equivalent to {transfer}, and can be used to\\n * e.g. implement automatic token fees, slashing mechanisms, etc.\\n *\\n * Emits a {Transfer} event.\\n *\\n * Requirements:\\n *\\n * - `from` cannot be the zero address.\\n * - `to` cannot be the zero address.\\n * - `from` must have a balance of at least `amount`.\\n */\\n function _transfer(\\n address from,\\n address to,\\n uint256 amount\\n ) internal virtual {\\n require(from != address(0), \\\"ERC20: transfer from the zero address\\\");\\n require(to != address(0), \\\"ERC20: transfer to the zero address\\\");\\n\\n _beforeTokenTransfer(from, to, amount);\\n\\n uint256 fromBalance = _balances[from];\\n require(fromBalance >= amount, \\\"ERC20: transfer amount exceeds balance\\\");\\n unchecked {\\n _balances[from] = fromBalance - amount;\\n }\\n _balances[to] += amount;\\n\\n emit Transfer(from, to, amount);\\n\\n _afterTokenTransfer(from, to, amount);\\n }\\n\\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\\n * the total supply.\\n *\\n * Emits a {Transfer} event with `from` set to the zero address.\\n *\\n * Requirements:\\n *\\n * - `account` cannot be the zero address.\\n */\\n function _mint(address account, uint256 amount) internal virtual {\\n require(account != address(0), \\\"ERC20: mint to the zero address\\\");\\n\\n _beforeTokenTransfer(address(0), account, amount);\\n\\n _totalSupply += amount;\\n _balances[account] += amount;\\n emit Transfer(address(0), account, amount);\\n\\n _afterTokenTransfer(address(0), account, amount);\\n }\\n\\n /**\\n * @dev Destroys `amount` tokens from `account`, reducing the\\n * total supply.\\n *\\n * Emits a {Transfer} event with `to` set to the zero address.\\n *\\n * Requirements:\\n *\\n * - `account` cannot be the zero address.\\n * - `account` must have at least `amount` tokens.\\n */\\n function _burn(address account, uint256 amount) internal virtual {\\n require(account != address(0), \\\"ERC20: burn from the zero address\\\");\\n\\n _beforeTokenTransfer(account, address(0), amount);\\n\\n uint256 accountBalance = _balances[account];\\n require(accountBalance >= amount, \\\"ERC20: burn amount exceeds balance\\\");\\n unchecked {\\n _balances[account] = accountBalance - amount;\\n }\\n _totalSupply -= amount;\\n\\n emit Transfer(account, address(0), amount);\\n\\n _afterTokenTransfer(account, address(0), amount);\\n }\\n\\n /**\\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\\n *\\n * This internal function is equivalent to `approve`, and can be used to\\n * e.g. set automatic allowances for certain subsystems, etc.\\n *\\n * Emits an {Approval} event.\\n *\\n * Requirements:\\n *\\n * - `owner` cannot be the zero address.\\n * - `spender` cannot be the zero address.\\n */\\n function _approve(\\n address owner,\\n address spender,\\n uint256 amount\\n ) internal virtual {\\n require(owner != address(0), \\\"ERC20: approve from the zero address\\\");\\n require(spender != address(0), \\\"ERC20: approve to the zero address\\\");\\n\\n _allowances[owner][spender] = amount;\\n emit Approval(owner, spender, amount);\\n }\\n\\n /**\\n * @dev Spend `amount` form the allowance of `owner` toward `spender`.\\n *\\n * Does not update the allowance amount in case of infinite allowance.\\n * Revert if not enough allowance is available.\\n *\\n * Might emit an {Approval} event.\\n */\\n function _spendAllowance(\\n address owner,\\n address spender,\\n uint256 amount\\n ) internal virtual {\\n uint256 currentAllowance = allowance(owner, spender);\\n if (currentAllowance != type(uint256).max) {\\n require(currentAllowance >= amount, \\\"ERC20: insufficient allowance\\\");\\n unchecked {\\n _approve(owner, spender, currentAllowance - amount);\\n }\\n }\\n }\\n\\n /**\\n * @dev Hook that is called before any transfer of tokens. This includes\\n * minting and burning.\\n *\\n * Calling conditions:\\n *\\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\\n * will be transferred to `to`.\\n * - when `from` is zero, `amount` tokens will be minted for `to`.\\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\\n * - `from` and `to` are never both zero.\\n *\\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\\n */\\n function _beforeTokenTransfer(\\n address from,\\n address to,\\n uint256 amount\\n ) internal virtual {}\\n\\n /**\\n * @dev Hook that is called after any transfer of tokens. This includes\\n * minting and burning.\\n *\\n * Calling conditions:\\n *\\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\\n * has been transferred to `to`.\\n * - when `from` is zero, `amount` tokens have been minted for `to`.\\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\\n * - `from` and `to` are never both zero.\\n *\\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\\n */\\n function _afterTokenTransfer(\\n address from,\\n address to,\\n uint256 amount\\n ) internal virtual {}\\n}\\n\",\"keccak256\":\"0xdadd41acb749920eccf40aeaa8d291adf9751399a7343561bad13e7a8d99be0b\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/IERC20.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Interface of the ERC20 standard as defined in the EIP.\\n */\\ninterface IERC20 {\\n /**\\n * @dev Returns the amount of tokens in existence.\\n */\\n function totalSupply() external view returns (uint256);\\n\\n /**\\n * @dev Returns the amount of tokens owned by `account`.\\n */\\n function balanceOf(address account) external view returns (uint256);\\n\\n /**\\n * @dev Moves `amount` tokens from the caller's account to `to`.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transfer(address to, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Returns the remaining number of tokens that `spender` will be\\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\\n * zero by default.\\n *\\n * This value changes when {approve} or {transferFrom} are called.\\n */\\n function allowance(address owner, address spender) external view returns (uint256);\\n\\n /**\\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\\n * that someone may use both the old and the new allowance by unfortunate\\n * transaction ordering. One possible solution to mitigate this race\\n * condition is to first reduce the spender's allowance to 0 and set the\\n * desired value afterwards:\\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\\n *\\n * Emits an {Approval} event.\\n */\\n function approve(address spender, uint256 amount) external returns (bool);\\n\\n /**\\n * @dev Moves `amount` tokens from `from` to `to` using the\\n * allowance mechanism. `amount` is then deducted from the caller's\\n * allowance.\\n *\\n * Returns a boolean value indicating whether the operation succeeded.\\n *\\n * Emits a {Transfer} event.\\n */\\n function transferFrom(\\n address from,\\n address to,\\n uint256 amount\\n ) external returns (bool);\\n\\n /**\\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\\n * another (`to`).\\n *\\n * Note that `value` may be zero.\\n */\\n event Transfer(address indexed from, address indexed to, uint256 value);\\n\\n /**\\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\\n * a call to {approve}. `value` is the new allowance.\\n */\\n event Approval(address indexed owner, address indexed spender, uint256 value);\\n}\\n\",\"keccak256\":\"0xbbc8ac883ac3c0078ce5ad3e288fbb3ffcc8a30c3a98c0fda0114d64fc44fca2\",\"license\":\"MIT\"},\"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../IERC20.sol\\\";\\n\\n/**\\n * @dev Interface for the optional metadata functions from the ERC20 standard.\\n *\\n * _Available since v4.1._\\n */\\ninterface IERC20Metadata is IERC20 {\\n /**\\n * @dev Returns the name of the token.\\n */\\n function name() external view returns (string memory);\\n\\n /**\\n * @dev Returns the symbol of the token.\\n */\\n function symbol() external view returns (string memory);\\n\\n /**\\n * @dev Returns the decimals places of the token.\\n */\\n function decimals() external view returns (uint8);\\n}\\n\",\"keccak256\":\"0x8de418a5503946cabe331f35fe242d3201a73f67f77aaeb7110acb1f30423aca\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Context.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Provides information about the current execution context, including the\\n * sender of the transaction and its data. While these are generally available\\n * via msg.sender and msg.data, they should not be accessed in such a direct\\n * manner, since when dealing with meta-transactions the account sending and\\n * paying for execution may not be the actual sender (as far as an application\\n * is concerned).\\n *\\n * This contract is only required for intermediate, library-like contracts.\\n */\\nabstract contract Context {\\n function _msgSender() internal view virtual returns (address) {\\n return msg.sender;\\n }\\n\\n function _msgData() internal view virtual returns (bytes calldata) {\\n return msg.data;\\n }\\n}\\n\",\"keccak256\":\"0xe2e337e6dde9ef6b680e07338c493ebea1b5fd09b43424112868e9cc1706bca7\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/Strings.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev String operations.\\n */\\nlibrary Strings {\\n bytes16 private constant _HEX_SYMBOLS = \\\"0123456789abcdef\\\";\\n\\n /**\\n * @dev Converts a `uint256` to its ASCII `string` decimal representation.\\n */\\n function toString(uint256 value) internal pure returns (string memory) {\\n // Inspired by OraclizeAPI's implementation - MIT licence\\n // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\\n\\n if (value == 0) {\\n return \\\"0\\\";\\n }\\n uint256 temp = value;\\n uint256 digits;\\n while (temp != 0) {\\n digits++;\\n temp /= 10;\\n }\\n bytes memory buffer = new bytes(digits);\\n while (value != 0) {\\n digits -= 1;\\n buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\\n value /= 10;\\n }\\n return string(buffer);\\n }\\n\\n /**\\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\\n */\\n function toHexString(uint256 value) internal pure returns (string memory) {\\n if (value == 0) {\\n return \\\"0x00\\\";\\n }\\n uint256 temp = value;\\n uint256 length = 0;\\n while (temp != 0) {\\n length++;\\n temp >>= 8;\\n }\\n return toHexString(value, length);\\n }\\n\\n /**\\n * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\\n */\\n function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\\n bytes memory buffer = new bytes(2 * length + 2);\\n buffer[0] = \\\"0\\\";\\n buffer[1] = \\\"x\\\";\\n for (uint256 i = 2 * length + 1; i > 1; --i) {\\n buffer[i] = _HEX_SYMBOLS[value & 0xf];\\n value >>= 4;\\n }\\n require(value == 0, \\\"Strings: hex length insufficient\\\");\\n return string(buffer);\\n }\\n}\\n\",\"keccak256\":\"0x32c202bd28995dd20c4347b7c6467a6d3241c74c8ad3edcbb610cd9205916c45\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/cryptography/ECDSA.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol)\\n\\npragma solidity ^0.8.0;\\n\\nimport \\\"../Strings.sol\\\";\\n\\n/**\\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\\n *\\n * These functions can be used to verify that a message was signed by the holder\\n * of the private keys of a given address.\\n */\\nlibrary ECDSA {\\n enum RecoverError {\\n NoError,\\n InvalidSignature,\\n InvalidSignatureLength,\\n InvalidSignatureS,\\n InvalidSignatureV\\n }\\n\\n function _throwError(RecoverError error) private pure {\\n if (error == RecoverError.NoError) {\\n return; // no error: do nothing\\n } else if (error == RecoverError.InvalidSignature) {\\n revert(\\\"ECDSA: invalid signature\\\");\\n } else if (error == RecoverError.InvalidSignatureLength) {\\n revert(\\\"ECDSA: invalid signature length\\\");\\n } else if (error == RecoverError.InvalidSignatureS) {\\n revert(\\\"ECDSA: invalid signature 's' value\\\");\\n } else if (error == RecoverError.InvalidSignatureV) {\\n revert(\\\"ECDSA: invalid signature 'v' value\\\");\\n }\\n }\\n\\n /**\\n * @dev Returns the address that signed a hashed message (`hash`) with\\n * `signature` or error string. This address can then be used for verification purposes.\\n *\\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\\n * this function rejects them by requiring the `s` value to be in the lower\\n * half order, and the `v` value to be either 27 or 28.\\n *\\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\\n * verification to be secure: it is possible to craft signatures that\\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\\n * this is by receiving a hash of the original message (which may otherwise\\n * be too long), and then calling {toEthSignedMessageHash} on it.\\n *\\n * Documentation for signature generation:\\n * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\\n * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\\n *\\n * _Available since v4.3._\\n */\\n function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\\n // Check the signature length\\n // - case 65: r,s,v signature (standard)\\n // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._\\n if (signature.length == 65) {\\n bytes32 r;\\n bytes32 s;\\n uint8 v;\\n // ecrecover takes the signature parameters, and the only way to get them\\n // currently is to use assembly.\\n assembly {\\n r := mload(add(signature, 0x20))\\n s := mload(add(signature, 0x40))\\n v := byte(0, mload(add(signature, 0x60)))\\n }\\n return tryRecover(hash, v, r, s);\\n } else if (signature.length == 64) {\\n bytes32 r;\\n bytes32 vs;\\n // ecrecover takes the signature parameters, and the only way to get them\\n // currently is to use assembly.\\n assembly {\\n r := mload(add(signature, 0x20))\\n vs := mload(add(signature, 0x40))\\n }\\n return tryRecover(hash, r, vs);\\n } else {\\n return (address(0), RecoverError.InvalidSignatureLength);\\n }\\n }\\n\\n /**\\n * @dev Returns the address that signed a hashed message (`hash`) with\\n * `signature`. This address can then be used for verification purposes.\\n *\\n * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\\n * this function rejects them by requiring the `s` value to be in the lower\\n * half order, and the `v` value to be either 27 or 28.\\n *\\n * IMPORTANT: `hash` _must_ be the result of a hash operation for the\\n * verification to be secure: it is possible to craft signatures that\\n * recover to arbitrary addresses for non-hashed data. A safe way to ensure\\n * this is by receiving a hash of the original message (which may otherwise\\n * be too long), and then calling {toEthSignedMessageHash} on it.\\n */\\n function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\\n (address recovered, RecoverError error) = tryRecover(hash, signature);\\n _throwError(error);\\n return recovered;\\n }\\n\\n /**\\n * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\\n *\\n * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\\n *\\n * _Available since v4.3._\\n */\\n function tryRecover(\\n bytes32 hash,\\n bytes32 r,\\n bytes32 vs\\n ) internal pure returns (address, RecoverError) {\\n bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\\n uint8 v = uint8((uint256(vs) >> 255) + 27);\\n return tryRecover(hash, v, r, s);\\n }\\n\\n /**\\n * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\\n *\\n * _Available since v4.2._\\n */\\n function recover(\\n bytes32 hash,\\n bytes32 r,\\n bytes32 vs\\n ) internal pure returns (address) {\\n (address recovered, RecoverError error) = tryRecover(hash, r, vs);\\n _throwError(error);\\n return recovered;\\n }\\n\\n /**\\n * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\\n * `r` and `s` signature fields separately.\\n *\\n * _Available since v4.3._\\n */\\n function tryRecover(\\n bytes32 hash,\\n uint8 v,\\n bytes32 r,\\n bytes32 s\\n ) internal pure returns (address, RecoverError) {\\n // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\\n // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\\n // the valid range for s in (301): 0 < s < secp256k1n \\u00f7 2 + 1, and for v in (302): v \\u2208 {27, 28}. Most\\n // signatures from current libraries generate a unique signature with an s-value in the lower half order.\\n //\\n // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\\n // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\\n // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\\n // these malleable signatures as well.\\n if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\\n return (address(0), RecoverError.InvalidSignatureS);\\n }\\n if (v != 27 && v != 28) {\\n return (address(0), RecoverError.InvalidSignatureV);\\n }\\n\\n // If the signature is valid (and not malleable), return the signer address\\n address signer = ecrecover(hash, v, r, s);\\n if (signer == address(0)) {\\n return (address(0), RecoverError.InvalidSignature);\\n }\\n\\n return (signer, RecoverError.NoError);\\n }\\n\\n /**\\n * @dev Overload of {ECDSA-recover} that receives the `v`,\\n * `r` and `s` signature fields separately.\\n */\\n function recover(\\n bytes32 hash,\\n uint8 v,\\n bytes32 r,\\n bytes32 s\\n ) internal pure returns (address) {\\n (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\\n _throwError(error);\\n return recovered;\\n }\\n\\n /**\\n * @dev Returns an Ethereum Signed Message, created from a `hash`. This\\n * produces hash corresponding to the one signed with the\\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\\n * JSON-RPC method as part of EIP-191.\\n *\\n * See {recover}.\\n */\\n function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {\\n // 32 is the length in bytes of hash,\\n // enforced by the type signature above\\n return keccak256(abi.encodePacked(\\\"\\\\x19Ethereum Signed Message:\\\\n32\\\", hash));\\n }\\n\\n /**\\n * @dev Returns an Ethereum Signed Message, created from `s`. This\\n * produces hash corresponding to the one signed with the\\n * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\\n * JSON-RPC method as part of EIP-191.\\n *\\n * See {recover}.\\n */\\n function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\\n return keccak256(abi.encodePacked(\\\"\\\\x19Ethereum Signed Message:\\\\n\\\", Strings.toString(s.length), s));\\n }\\n\\n /**\\n * @dev Returns an Ethereum Signed Typed Data, created from a\\n * `domainSeparator` and a `structHash`. This produces hash corresponding\\n * to the one signed with the\\n * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\\n * JSON-RPC method as part of EIP-712.\\n *\\n * See {recover}.\\n */\\n function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {\\n return keccak256(abi.encodePacked(\\\"\\\\x19\\\\x01\\\", domainSeparator, structHash));\\n }\\n}\\n\",\"keccak256\":\"0x3c07f43e60e099b3b157243b3152722e73b80eeb7985c2cd73712828d7f7da29\",\"license\":\"MIT\"},\"@openzeppelin/contracts/utils/math/SafeCast.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\n// OpenZeppelin Contracts v4.4.1 (utils/math/SafeCast.sol)\\n\\npragma solidity ^0.8.0;\\n\\n/**\\n * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow\\n * checks.\\n *\\n * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can\\n * easily result in undesired exploitation or bugs, since developers usually\\n * assume that overflows raise errors. `SafeCast` restores this intuition by\\n * reverting the transaction when such an operation overflows.\\n *\\n * Using this library instead of the unchecked operations eliminates an entire\\n * class of bugs, so it's recommended to use it always.\\n *\\n * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing\\n * all math on `uint256` and `int256` and then downcasting.\\n */\\nlibrary SafeCast {\\n /**\\n * @dev Returns the downcasted uint224 from uint256, reverting on\\n * overflow (when the input is greater than largest uint224).\\n *\\n * Counterpart to Solidity's `uint224` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 224 bits\\n */\\n function toUint224(uint256 value) internal pure returns (uint224) {\\n require(value <= type(uint224).max, \\\"SafeCast: value doesn't fit in 224 bits\\\");\\n return uint224(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted uint128 from uint256, reverting on\\n * overflow (when the input is greater than largest uint128).\\n *\\n * Counterpart to Solidity's `uint128` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 128 bits\\n */\\n function toUint128(uint256 value) internal pure returns (uint128) {\\n require(value <= type(uint128).max, \\\"SafeCast: value doesn't fit in 128 bits\\\");\\n return uint128(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted uint96 from uint256, reverting on\\n * overflow (when the input is greater than largest uint96).\\n *\\n * Counterpart to Solidity's `uint96` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 96 bits\\n */\\n function toUint96(uint256 value) internal pure returns (uint96) {\\n require(value <= type(uint96).max, \\\"SafeCast: value doesn't fit in 96 bits\\\");\\n return uint96(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted uint64 from uint256, reverting on\\n * overflow (when the input is greater than largest uint64).\\n *\\n * Counterpart to Solidity's `uint64` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 64 bits\\n */\\n function toUint64(uint256 value) internal pure returns (uint64) {\\n require(value <= type(uint64).max, \\\"SafeCast: value doesn't fit in 64 bits\\\");\\n return uint64(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted uint32 from uint256, reverting on\\n * overflow (when the input is greater than largest uint32).\\n *\\n * Counterpart to Solidity's `uint32` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 32 bits\\n */\\n function toUint32(uint256 value) internal pure returns (uint32) {\\n require(value <= type(uint32).max, \\\"SafeCast: value doesn't fit in 32 bits\\\");\\n return uint32(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted uint16 from uint256, reverting on\\n * overflow (when the input is greater than largest uint16).\\n *\\n * Counterpart to Solidity's `uint16` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 16 bits\\n */\\n function toUint16(uint256 value) internal pure returns (uint16) {\\n require(value <= type(uint16).max, \\\"SafeCast: value doesn't fit in 16 bits\\\");\\n return uint16(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted uint8 from uint256, reverting on\\n * overflow (when the input is greater than largest uint8).\\n *\\n * Counterpart to Solidity's `uint8` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 8 bits.\\n */\\n function toUint8(uint256 value) internal pure returns (uint8) {\\n require(value <= type(uint8).max, \\\"SafeCast: value doesn't fit in 8 bits\\\");\\n return uint8(value);\\n }\\n\\n /**\\n * @dev Converts a signed int256 into an unsigned uint256.\\n *\\n * Requirements:\\n *\\n * - input must be greater than or equal to 0.\\n */\\n function toUint256(int256 value) internal pure returns (uint256) {\\n require(value >= 0, \\\"SafeCast: value must be positive\\\");\\n return uint256(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted int128 from int256, reverting on\\n * overflow (when the input is less than smallest int128 or\\n * greater than largest int128).\\n *\\n * Counterpart to Solidity's `int128` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 128 bits\\n *\\n * _Available since v3.1._\\n */\\n function toInt128(int256 value) internal pure returns (int128) {\\n require(value >= type(int128).min && value <= type(int128).max, \\\"SafeCast: value doesn't fit in 128 bits\\\");\\n return int128(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted int64 from int256, reverting on\\n * overflow (when the input is less than smallest int64 or\\n * greater than largest int64).\\n *\\n * Counterpart to Solidity's `int64` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 64 bits\\n *\\n * _Available since v3.1._\\n */\\n function toInt64(int256 value) internal pure returns (int64) {\\n require(value >= type(int64).min && value <= type(int64).max, \\\"SafeCast: value doesn't fit in 64 bits\\\");\\n return int64(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted int32 from int256, reverting on\\n * overflow (when the input is less than smallest int32 or\\n * greater than largest int32).\\n *\\n * Counterpart to Solidity's `int32` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 32 bits\\n *\\n * _Available since v3.1._\\n */\\n function toInt32(int256 value) internal pure returns (int32) {\\n require(value >= type(int32).min && value <= type(int32).max, \\\"SafeCast: value doesn't fit in 32 bits\\\");\\n return int32(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted int16 from int256, reverting on\\n * overflow (when the input is less than smallest int16 or\\n * greater than largest int16).\\n *\\n * Counterpart to Solidity's `int16` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 16 bits\\n *\\n * _Available since v3.1._\\n */\\n function toInt16(int256 value) internal pure returns (int16) {\\n require(value >= type(int16).min && value <= type(int16).max, \\\"SafeCast: value doesn't fit in 16 bits\\\");\\n return int16(value);\\n }\\n\\n /**\\n * @dev Returns the downcasted int8 from int256, reverting on\\n * overflow (when the input is less than smallest int8 or\\n * greater than largest int8).\\n *\\n * Counterpart to Solidity's `int8` operator.\\n *\\n * Requirements:\\n *\\n * - input must fit into 8 bits.\\n *\\n * _Available since v3.1._\\n */\\n function toInt8(int256 value) internal pure returns (int8) {\\n require(value >= type(int8).min && value <= type(int8).max, \\\"SafeCast: value doesn't fit in 8 bits\\\");\\n return int8(value);\\n }\\n\\n /**\\n * @dev Converts an unsigned uint256 into a signed int256.\\n *\\n * Requirements:\\n *\\n * - input must be less than or equal to maxInt256.\\n */\\n function toInt256(uint256 value) internal pure returns (int256) {\\n // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive\\n require(value <= uint256(type(int256).max), \\\"SafeCast: value doesn't fit in an int256\\\");\\n return int256(value);\\n }\\n}\\n\",\"keccak256\":\"0x5c6caab697d302ad7eb59c234a4d2dbc965c1bae87709bd2850060b7695b28c7\",\"license\":\"MIT\"},\"contracts/ZeroMoney.sol\":{\"content\":\"// SPDX-License-Identifier: WTFPL\\n\\npragma solidity 0.8.13;\\n\\nimport \\\"@openzeppelin/contracts/token/ERC20/ERC20.sol\\\";\\nimport \\\"@openzeppelin/contracts/access/Ownable.sol\\\";\\nimport \\\"@openzeppelin/contracts/utils/math/SafeCast.sol\\\";\\nimport \\\"@openzeppelin/contracts/utils/cryptography/ECDSA.sol\\\";\\n\\n/// @dev A mintable ERC20 token that allows anyone to pay and distribute ZERO\\n/// to token holders as dividends and allows token holders to withdraw their dividends.\\n/// Reference: https://github.com/Roger-Wu/erc1726-dividend-paying-token/blob/master/contracts/DividendPayingToken.sol\\ncontract ZeroMoney is ERC20, Ownable {\\n using SafeCast for uint256;\\n using SafeCast for int256;\\n\\n // For more discussion about choosing the value of `magnitude`,\\n // see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728\\n uint256 public constant MAGNITUDE = 2**128;\\n uint256 public constant HALVING_PERIOD = 21 days;\\n uint256 public constant FINAL_ERA = 60;\\n\\n address public signer;\\n uint256 public startedAt;\\n mapping(address => bool) public blacklisted;\\n mapping(bytes32 => bool) internal _claimed;\\n\\n uint256 internal magnifiedDividendPerShare;\\n\\n // About dividendCorrection:\\n // If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:\\n // `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.\\n // When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),\\n // `dividendOf(_user)` should not be changed,\\n // but the computed value of `dividendPerShare * balanceOf(_user)` is changed.\\n // To keep the `dividendOf(_user)` unchanged, we add a correction term:\\n // `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,\\n // where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:\\n // `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.\\n // So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.\\n mapping(address => int256) internal magnifiedDividendCorrections;\\n mapping(address => uint256) internal withdrawnDividends;\\n\\n event ChangeSigner(address indexed signer);\\n event SetBlacklisted(address indexed account, bool blacklisted);\\n event Start();\\n event Claim(bytes32 indexed id, address indexed to);\\n /// @dev This event MUST emit when ZERO is distributed to token holders.\\n /// @param weiAmount The amount of distributed ZERO in wei.\\n event DividendsDistributed(uint256 weiAmount);\\n /// @dev This event MUST emit when an address withdraws their dividend.\\n /// @param to The address which withdraws ZERO from this contract.\\n /// @param weiAmount The amount of withdrawn ZERO in wei.\\n event Withdraw(address indexed to, uint256 weiAmount);\\n\\n constructor(address _signer) ERC20(\\\"Zero Money\\\", \\\"ZERO\\\") {\\n signer = _signer;\\n blacklisted[address(this)] = true;\\n\\n emit ChangeSigner(_signer);\\n emit SetBlacklisted(address(this), true);\\n }\\n\\n function currentHalvingEra() public view returns (uint256) {\\n if (startedAt == 0) return type(uint256).max;\\n uint256 era = (block.timestamp - startedAt) / HALVING_PERIOD;\\n return FINAL_ERA < era ? FINAL_ERA : era;\\n }\\n\\n /// @notice View the amount of dividend in wei that an address can withdraw.\\n /// @param account The address of a token holder.\\n /// @return The amount of dividend in wei that `account` can withdraw.\\n function withdrawableDividendOf(address account) public view returns (uint256) {\\n return accumulativeDividendOf(account) - withdrawnDividends[account];\\n }\\n\\n /// @notice View the amount of dividend in wei that an address has withdrawn.\\n /// @param account The address of a token holder.\\n /// @return The amount of dividend in wei that `account` has withdrawn.\\n function withdrawnDividendOf(address account) public view returns (uint256) {\\n return withdrawnDividends[account];\\n }\\n\\n /// @notice View the amount of dividend in wei that an address has earned in total.\\n /// @dev accumulativeDividendOf(account) = withdrawableDividendOf(account) + withdrawnDividendOf(account)\\n /// = (magnifiedDividendPerShare * balanceOf(account) + magnifiedDividendCorrections[account]) / magnitude\\n /// @param account The address of a token holder.\\n /// @return The amount of dividend in wei that `account` has earned in total.\\n function accumulativeDividendOf(address account) public view returns (uint256) {\\n return\\n ((magnifiedDividendPerShare * balanceOf(account)).toInt256() + magnifiedDividendCorrections[account])\\n .toUint256() / MAGNITUDE;\\n }\\n\\n function changeSigner(address _signer) external onlyOwner {\\n signer = _signer;\\n\\n emit ChangeSigner(_signer);\\n }\\n\\n function setBlacklisted(address account, bool _blacklisted) external onlyOwner {\\n blacklisted[account] = _blacklisted;\\n\\n emit SetBlacklisted(account, _blacklisted);\\n }\\n\\n function start() external onlyOwner {\\n _mint(msg.sender, totalSupply());\\n startedAt = block.timestamp;\\n\\n emit Start();\\n }\\n\\n function claim(\\n bytes32 id,\\n uint8 v,\\n bytes32 r,\\n bytes32 s\\n ) external {\\n require(id != bytes32(0), \\\"ZERO: INVALID_ID\\\");\\n require(!_claimed[id], \\\"ZERO: CLAIMED\\\");\\n\\n bytes32 message = keccak256(abi.encodePacked(id, msg.sender));\\n require(ECDSA.recover(ECDSA.toEthSignedMessageHash(message), v, r, s) == signer, \\\"ZERO: UNAUTHORIZED\\\");\\n\\n _claimed[id] = true;\\n _mint(msg.sender, 1 ether);\\n\\n emit Claim(id, msg.sender);\\n }\\n\\n /// @dev Internal function that mints tokens to an account.\\n /// Update magnifiedDividendCorrections to keep dividends unchanged.\\n /// @param account The account that will receive the created tokens.\\n /// @param value The amount that will be created.\\n function _mint(address account, uint256 value) internal override {\\n super._mint(account, value);\\n\\n magnifiedDividendCorrections[account] -= (magnifiedDividendPerShare * value).toInt256();\\n }\\n\\n /// @dev Internal function that transfer tokens from one address to another.\\n /// Update magnifiedDividendCorrections to keep dividends unchanged.\\n /// @param from The address to transfer from.\\n /// @param to The address to transfer to.\\n /// @param amount The amount to be transferred.\\n function _transfer(\\n address from,\\n address to,\\n uint256 amount\\n ) internal override {\\n super._transfer(from, to, amount);\\n\\n int256 _magCorrection = (magnifiedDividendPerShare * amount).toInt256();\\n magnifiedDividendCorrections[from] += _magCorrection;\\n magnifiedDividendCorrections[to] -= _magCorrection;\\n\\n if (startedAt > 0 && !blacklisted[from]) {\\n _distributeDividends(amount);\\n }\\n }\\n\\n /// @notice Distributes ZERO to token holders as dividends.\\n /// @dev It emits the `DividendsDistributed` event if the amount of received ZERO is greater than 0.\\n /// About undistributed ZERO:\\n /// In each distribution, there is a small amount of ZERO not distributed,\\n /// the magnified amount of which is\\n /// `(msg.value * magnitude) % totalSupply()`.\\n /// With a well-chosen `magnitude`, the amount of undistributed ZERO\\n /// (de-magnified) in a distribution can be less than 1 wei.\\n /// We can actually keep track of the undistributed ZERO in a distribution\\n /// and try to distribute it in the next distribution,\\n /// but keeping track of such data on-chain costs much more than\\n /// the saved ZERO, so we don't do that.\\n function _distributeDividends(uint256 amount) private {\\n uint256 era = (block.timestamp - startedAt) / HALVING_PERIOD;\\n if (FINAL_ERA <= era) {\\n return;\\n }\\n\\n amount = amount / (2**era);\\n magnifiedDividendPerShare += ((amount * MAGNITUDE) / totalSupply());\\n _mint(address(this), amount);\\n emit DividendsDistributed(amount);\\n }\\n\\n /// @notice Withdraws dividends distributed to the sender.\\n /// @dev It emits a `Withdraw` event if the amount of withdrawn ZERO is greater than 0.\\n function withdrawDividend() public {\\n uint256 _withdrawableDividend = withdrawableDividendOf(msg.sender);\\n require(_withdrawableDividend > 0, \\\"ZERO: ZERO_DIVIDEND\\\");\\n\\n withdrawnDividends[msg.sender] += _withdrawableDividend;\\n _transfer(address(this), msg.sender, _withdrawableDividend);\\n emit Withdraw(msg.sender, _withdrawableDividend);\\n }\\n\\n /// @dev External function that burns an amount of the token of a given account.\\n /// Update magnifiedDividendCorrections to keep dividends unchanged.\\n /// @param value The amount that will be burnt.\\n function burn(uint256 value) public {\\n _burn(msg.sender, value);\\n\\n magnifiedDividendCorrections[msg.sender] += (magnifiedDividendPerShare * value).toInt256();\\n }\\n}\\n\",\"keccak256\":\"0x82d764aac4e87df06be0ed0dd5c00b1bfdc5248b4f66ee560365c35510af13b4\",\"license\":\"WTFPL\"}},\"version\":1}", "bytecode": 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"devdoc": { "details": "A mintable ERC20 token that allows anyone to pay and distribute ZERO to token holders as dividends and allows token holders to withdraw their dividends. Reference: https://github.com/Roger-Wu/erc1726-dividend-paying-token/blob/master/contracts/DividendPayingToken.sol", "events": { "DividendsDistributed(uint256)": { "details": "This event MUST emit when ZERO is distributed to token holders.", "params": { "weiAmount": "The amount of distributed ZERO in wei." } }, "Withdraw(address,uint256)": { "details": "This event MUST emit when an address withdraws their dividend.", "params": { "to": "The address which withdraws ZERO from this contract.", "weiAmount": "The amount of withdrawn ZERO in wei." } } }, "kind": "dev", "methods": { "accumulativeDividendOf(address)": { "details": "accumulativeDividendOf(account) = withdrawableDividendOf(account) + withdrawnDividendOf(account) = (magnifiedDividendPerShare * balanceOf(account) + magnifiedDividendCorrections[account]) / magnitude", "params": { "account": "The address of a token holder." }, "returns": { "_0": "The amount of dividend in wei that `account` has earned in total." } }, "allowance(address,address)": { "details": "See {IERC20-allowance}." }, "approve(address,uint256)": { "details": "See {IERC20-approve}. NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on `transferFrom`. This is semantically equivalent to an infinite approval. Requirements: - `spender` cannot be the zero address." }, "balanceOf(address)": { "details": "See {IERC20-balanceOf}." }, "burn(uint256)": { "details": "External function that burns an amount of the token of a given account. Update magnifiedDividendCorrections to keep dividends unchanged.", "params": { "value": "The amount that will be burnt." } }, "decimals()": { "details": "Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5.05` (`505 / 10 ** 2`). Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei. This is the value {ERC20} uses, unless this function is overridden; NOTE: This information is only used for _display_ purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}." }, "decreaseAllowance(address,uint256)": { "details": "Atomically decreases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address. - `spender` must have allowance for the caller of at least `subtractedValue`." }, "increaseAllowance(address,uint256)": { "details": "Atomically increases the allowance granted to `spender` by the caller. This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}. Emits an {Approval} event indicating the updated allowance. Requirements: - `spender` cannot be the zero address." }, "name()": { "details": "Returns the name of the token." }, "owner()": { "details": "Returns the address of the current owner." }, "renounceOwnership()": { "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner." }, "symbol()": { "details": "Returns the symbol of the token, usually a shorter version of the name." }, "totalSupply()": { "details": "See {IERC20-totalSupply}." }, "transfer(address,uint256)": { "details": "See {IERC20-transfer}. Requirements: - `to` cannot be the zero address. - the caller must have a balance of at least `amount`." }, "transferFrom(address,address,uint256)": { "details": "See {IERC20-transferFrom}. Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}. NOTE: Does not update the allowance if the current allowance is the maximum `uint256`. Requirements: - `from` and `to` cannot be the zero address. - `from` must have a balance of at least `amount`. - the caller must have allowance for ``from``'s tokens of at least `amount`." }, "transferOwnership(address)": { "details": "Transfers ownership of the contract to a new account (`newOwner`). Can only be called by the current owner." }, "withdrawDividend()": { "details": "It emits a `Withdraw` event if the amount of withdrawn ZERO is greater than 0." }, "withdrawableDividendOf(address)": { "params": { "account": "The address of a token holder." }, "returns": { "_0": "The amount of dividend in wei that `account` can withdraw." } }, "withdrawnDividendOf(address)": { "params": { "account": "The address of a token holder." }, "returns": { "_0": "The amount of dividend in wei that `account` has withdrawn." } } }, "version": 1 }, "userdoc": { "kind": "user", "methods": { "accumulativeDividendOf(address)": { "notice": "View the amount of dividend in wei that an address has earned in total." }, "withdrawDividend()": { "notice": "Withdraws dividends distributed to the sender." }, "withdrawableDividendOf(address)": { "notice": "View the amount of dividend in wei that an address can withdraw." }, "withdrawnDividendOf(address)": { "notice": "View the amount of dividend in wei that an address has withdrawn." } }, "version": 1 }, "storageLayout": { "storage": [ { "astId": 120, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "_balances", "offset": 0, "slot": "0", "type": "t_mapping(t_address,t_uint256)" }, { "astId": 126, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "_allowances", "offset": 0, "slot": "1", "type": "t_mapping(t_address,t_mapping(t_address,t_uint256))" }, { "astId": 128, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "_totalSupply", "offset": 0, "slot": "2", "type": "t_uint256" }, { "astId": 130, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "_name", "offset": 0, "slot": "3", "type": "t_string_storage" }, { "astId": 132, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "_symbol", "offset": 0, "slot": "4", "type": "t_string_storage" }, { "astId": 7, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "_owner", "offset": 0, "slot": "5", "type": "t_address" }, { "astId": 1850, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "signer", "offset": 0, "slot": "6", "type": "t_address" }, { "astId": 1852, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "startedAt", "offset": 0, "slot": "7", "type": "t_uint256" }, { "astId": 1856, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "blacklisted", "offset": 0, "slot": "8", "type": "t_mapping(t_address,t_bool)" }, { "astId": 1860, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "_claimed", "offset": 0, "slot": "9", "type": "t_mapping(t_bytes32,t_bool)" }, { "astId": 1862, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "magnifiedDividendPerShare", "offset": 0, "slot": "10", "type": "t_uint256" }, { "astId": 1866, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "magnifiedDividendCorrections", "offset": 0, "slot": "11", "type": "t_mapping(t_address,t_int256)" }, { "astId": 1870, "contract": "contracts/ZeroMoney.sol:ZeroMoney", "label": "withdrawnDividends", "offset": 0, "slot": "12", "type": "t_mapping(t_address,t_uint256)" } ], "types": { "t_address": { "encoding": "inplace", "label": "address", "numberOfBytes": "20" }, "t_bool": { "encoding": "inplace", "label": "bool", "numberOfBytes": "1" }, "t_bytes32": { "encoding": "inplace", "label": "bytes32", "numberOfBytes": "32" }, "t_int256": { "encoding": "inplace", "label": "int256", "numberOfBytes": "32" }, "t_mapping(t_address,t_bool)": { "encoding": "mapping", "key": "t_address", "label": "mapping(address => bool)", "numberOfBytes": "32", "value": "t_bool" }, "t_mapping(t_address,t_int256)": { "encoding": "mapping", "key": "t_address", "label": "mapping(address => int256)", "numberOfBytes": "32", "value": "t_int256" }, "t_mapping(t_address,t_mapping(t_address,t_uint256))": { "encoding": "mapping", "key": "t_address", "label": "mapping(address => mapping(address => uint256))", "numberOfBytes": "32", "value": "t_mapping(t_address,t_uint256)" }, "t_mapping(t_address,t_uint256)": { "encoding": "mapping", "key": "t_address", "label": "mapping(address => uint256)", "numberOfBytes": "32", "value": "t_uint256" }, "t_mapping(t_bytes32,t_bool)": { "encoding": "mapping", "key": "t_bytes32", "label": "mapping(bytes32 => bool)", "numberOfBytes": "32", "value": "t_bool" }, "t_string_storage": { "encoding": "bytes", "label": "string", "numberOfBytes": "32" }, "t_uint256": { "encoding": "inplace", "label": "uint256", "numberOfBytes": "32" } } } }