Address Contract Verified
Address
0x9506d37f70eB4C3d79C398d326C871aBBf10521d
Balance
0 ETH
Nonce
1
Code Size
8970 bytes
Creator
0x3687018A...490D at tx 0x23823d3b...fd8978
Indexed Transactions
0
Contract Bytecode
8970 bytes
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Verified Source Code Full Match
Compiler: v0.8.4+commit.c7e474f2
EVM: istanbul
Optimization: No
MediaLicensingToken.sol 274 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
abstract contract Ownable is Context {
// Holds the owner address
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// Our main contract which implements all ERC20 standard methods
contract MediaLicensingToken is Context, IERC20, IERC20Metadata, Ownable {
// Holds all the balances
mapping (address => uint256) private _balances;
// Holds all allowances
mapping (address => mapping (address => uint256)) private _allowances;
// Holds all blacklisted addresses
mapping (address => bool) private _blocklist;
// They can only be decreased
uint256 private _totalSupply;
// Immutable they can only be set once during construction
string private _name;
string private _symbol;
uint256 private _maxTokens;
// Events
event Blocklist(address indexed account, bool indexed status);
// The initializer of our contract
constructor () {
_name = "Media Licensing Token";
_symbol = "MLT";
// Holds max mintable limit, 200 million tokens
_maxTokens = 200000000000000000000000000;
_mint(_msgSender(), _maxTokens);
}
/*
* PUBLIC RETURNS
*/
// Returns the name of the token.
function name() public view virtual override returns (string memory) {
return _name;
}
// Returns the symbol of the token
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
// Returns the number of decimals used
function decimals() public view virtual override returns (uint8) {
return 18;
}
// Returns the total supply
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
// Returns the balance of a given address
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
// Returns the allowances of the given addresses
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
// Returns a blocked address of a given address
function isBlocked(address account) public view virtual returns (bool) {
return _blocklist[account];
}
/*
* PUBLIC FUNCTIONS
*/
// Calls the _transfer function for a given recipient and amount
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
// Calls the _transfer function for a given array of recipients and amounts
function transferArray(address[] calldata recipients, uint256[] calldata amounts) public virtual returns (bool) {
for (uint8 count = 0; count < recipients.length; count++) {
_transfer(_msgSender(), recipients[count], amounts[count]);
}
return true;
}
// Calls the _approve function for a given spender and amount
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
// Calls the _transfer and _approve function for a given sender, recipient and amount
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
// Calls the _approve function for a given spender and added value (amount)
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
// Calls the _approve function for a given spender and substracted value (amount)
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
/*
* PUBLIC (Only Owner)
*/
// Calls the _burn internal function for a given amount
function burn(uint256 amount) public virtual onlyOwner {
_burn(_msgSender(), amount);
}
function blockAddress (address account) public virtual onlyOwner {
_block(account, true);
}
function unblockAddress (address account) public virtual onlyOwner {
_block(account, false);
}
/*
* INTERNAL (PRIVATE)
*/
function _block (address account, bool status) internal virtual {
require(account != _msgSender(), "ERC20: message sender can not block or unblock himself");
_blocklist[account] = status;
emit Blocklist(account, status);
}
// Implements the transfer function for a given sender, recipient and amount
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
// Implements the mint function for a given account and amount
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
// Paranoid security
require(_totalSupply <= _maxTokens, "ERC20: mint exceeds total supply limit");
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
// Implements the burn function for a given account and amount
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
}
// Implements the approve function for a given owner, spender and amount
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/*
* INTERNAL (PRIVATE) HELPERS
*/
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {
require(_blocklist[from] == false && _blocklist[to] == false, "MLTERC20: transfer not allowed");
require(amount > 0, "ERC20: amount must be above zero");
}
}
Read Contract
allowance 0xdd62ed3e → uint256
balanceOf 0x70a08231 → uint256
decimals 0x313ce567 → uint8
isBlocked 0xfbac3951 → bool
name 0x06fdde03 → string
owner 0x8da5cb5b → address
symbol 0x95d89b41 → string
totalSupply 0x18160ddd → uint256
Write Contract 10 functions
These functions modify contract state and require a wallet transaction to execute.
approve 0x095ea7b3
address spender
uint256 amount
returns: bool
blockAddress 0xad2bb1b3
address account
burn 0x42966c68
uint256 amount
decreaseAllowance 0xa457c2d7
address spender
uint256 subtractedValue
returns: bool
increaseAllowance 0x39509351
address spender
uint256 addedValue
returns: bool
transfer 0xa9059cbb
address recipient
uint256 amount
returns: bool
transferArray 0x942d468b
address[] recipients
uint256[] amounts
returns: bool
transferFrom 0x23b872dd
address sender
address recipient
uint256 amount
returns: bool
transferOwnership 0xf2fde38b
address newOwner
unblockAddress 0x186d9d88
address account
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