Oleg Doubrovine olekashiwa
olekashiwa
/ erc721-example.sol
Created
May 31, 2018 16:06
— forked from aunyks/erc721-example.sol
My implementation of the ERC721 token standard. WARNING: THIS CODE IS FOR EDUCATIONAL PURPOSES. DO NOT DEPLOY TO THE NETWORK.
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| pragma solidity ^0.4.19; | |
| contract ERC721 { | |
| string constant private tokenName = "My ERC721 Token"; | |
| string constant private tokenSymbol = "MET"; | |
| uint256 constant private totalTokens = 1000000; | |
| mapping(address => uint) private balances; | |
| mapping(uint256 => address) private tokenOwners; | |
| mapping(uint256 => bool) private tokenExists; | |
| mapping(address => mapping (address => uint256)) private allowed; | |
| mapping(address => mapping(uint256 => uint256)) private ownerTokens; |
olekashiwa
/ toxic_comments_example.ipynb
Created
November 25, 2021 16:30
— forked from a-v-ershov/toxic_comments_example.ipynb
An example of data science task
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