README.md

Contract outline - contract.sol:

contract CryptoPunksTokenUri
interface ICryptoPunksData
library Base64

Created on Ethereum Mainnet:

punks meta | punks token uri - Contract ABI @ 0xd8e916c3016be144eb2907778cf972c4b01645fc

Author: 0xTycoon. Includes Base64 functionality from OpenZeppelin and builds on top of the on-chain Punks data contact deployed by Larva Labs as described here https://www.larvalabs.com/blog/2021-8-18-18-0/on-chain-cryptopunks
Version: 0.0.2
Pragma: solidity ^0.8.17
```
█████                                   ██████
```
█ █ █████ █ █ █████ █████ ████ █ █ █ █ █ █ █ █ ████ █ █ █ █ █ █ █ █ █ █ █ █ █ █ ██ █ █ █ █ █ █ █ █ █ █ █ █ █ ██████ █ █ █ █ █ ████ ████ █ █████ █ █████ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ ██ █ █ █ █ █████ █ █ █ █ █ ████ █ ████ █ █ █ █ ████

███████ █ █ █ ████ █ █ ██████ █ █ █ █ █████ █ █ █ █ █ █ █ ██ █ █ █ █ █ █ █ █ █ ████ █████ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █ █████ █ █ █ █ █ █ █ █ ██ █ █ █ █ █ █ ████ █ █ ██████ █ █ █████ █ █ █

Punks's missing tokenURI function

Constructor

3 Query Functions(s)

function getAttributes(uint256 _tokenId) returns (string)
getAttributes calls parseAttributes and returns the result as JSON
@param _tokenId the punk id
function parseAttributes(uint256 _tokenId) returns (string[8])
parseAttributes returns an array of punk attributes. 8 rows in total
The first row is the Type, and next seven rows are the attributes.
The values are fetched form the CryptoPunksData contract and then the
string is parsed.
@param _tokenId the punk id
function tokenURI(uint256 _tokenId) returns (string)
tokenURI gets the metadata about a punk and returns as a JSON
formatted string, according to the ERC721 schema and market
recommendations. It also embeds the SVG data.
The attributes and SVG data are fetched form the CryptoPunksData
contract, which stores all the CryptoPunks metadata on-chain.
@param _tokenId the punk id

1 Helper Functions(s)