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"value": "Certainly! Here is an example EVM (Ethereum Virtual Machine) contract creation code snippet for creating a standard ERC-20 token on the Ethereum blockchain:\n\n```solidity\n// SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ninterface IERC20 {\n function totalSupply() external view returns (uint256);\n function balanceOf(address account) external view returns (uint256);\n function transfer(address recipient, uint256 amount) external returns (bool);\n function allowance(address owner, address spender) external view returns (uint256);\n function approve(address spender, uint256 amount) external returns (bool);\n function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n event Transfer(address indexed from, address indexed to, uint256 value);\n event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n\ncontract MyToken is IERC20 {\n string public constant name = "My Token";\n string public constant symbol = "MT";\n uint8 public constant decimals = 18;\n \n mapping(address => uint256) private _balances;\n mapping(address => mapping(address => uint256)) private _allowances;\n \n uint256 private _totalSupply;\n \n constructor(uint256 initialSupply) {\n _totalSupply = initialSupply * (10 ** decimals);\n _balances[msg.sender] = _totalSupply;\n emit Transfer(address(0), msg.sender, _totalSupply);\n }\n \n function totalSupply() public view override returns (uint256) {\n return _totalSupply;\n }\n \n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n \n function transfer(address recipient, uint256 amount) public override returns (bool) {\n _transfer(msg.sender, recipient, amount);\n return true;\n }\n \n function allowance(address owner, address spender) public view override returns (uint256) {\n return _allowances[owner][spender];\n }\n \n function approve(address spender, uint256 amount) public override returns (bool) {\n _approve(msg.sender, spender, amount);\n return true;\n }\n \n function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {\n _transfer(sender, recipient, amount);\n _approve(sender, msg.sender, _allowances[sender][msg.sender] - amount);\n return true;\n }\n \n function _transfer(address sender, address recipient, uint256 amount) internal {\n require(sender != address(0), "ERC20: transfer from the zero address");\n require(recipient != address(0), "ERC20: transfer to the zero address");\n require(_balances[sender] >= amount, "ERC20: transfer amount exceeds balance");\n \n _balances[sender] -= amount;\n _balances[recipient] += amount;\n \n emit Transfer(sender, recipient, amount);\n }\n \n function _approve(address owner, address spender, uint256 amount) internal {\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\nThis basic contract defines the functionalities and events required for an ERC-20 token. Remember that before deploying a contract on mainnet or any Ethereum network, you should ensure thorough testing and auditing to secure your smart contract."
}
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