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Wrapped CryptoPokemons(wPKMN)

0x30982ef551ea...18aefecf7f9c
Source VerifiedEdit this contract
Deployed May 16, 2026 (3 months ago)Block 25,108,470

A wrapper for CryptoPokemons from March 2018, an early NFT built against a draft of ERC-721 rather than the final standard.

Verified Source

Historical Significance

This is a wrapper for a near miss rather than for a contract from before the standard. It shows that the compatibility problem did not end when ERC-721 was published: contracts written during the drafting period implemented whichever version existed at the time, and some of those are still not usable by tooling that expects the finished specification.

Context

CryptoPokemons was deployed in March 2018, during the wave of collectibles that followed CryptoKitties and while ERC-721 was still being finalised. Projects from that window frequently declared ERC-721 support against an interface that had not settled, which is why several of them need adapters despite having been written with the standard in mind.

Token Information
Token Name
Wrapped CryptoPokemons
Symbol
wPKMN
Key Facts
Deployer
cart00n.eth (0xf66ac2...9d0af6)
Deployment Block
25,108,470
Deployment Date
May 16, 2026, 02:56 PM
Code Size
12.2 KB
Transactions by Year
20261

Description

Wrapped CryptoPokemons (wPKMN) wraps the PokemonToken contract from 29 March 2018. Its verified source references that contract.

CryptoPokemons is closer to the standard than the other contracts wrapped here, and even declares implementsERC721. It provides ownerOf, transfer, approve and transferFrom, but not safeTransferFrom or setApprovalForAll, both of which the final ERC-721 requires. That is the signature of a contract written against a draft while the specification was still moving. The wrapper offers wrap and unwrap along with wrapAll and unwrapAll for moving a whole holding at once.

Bytecode Overview

Opcodes12,466
Unique Opcodes256
Jump Instructions752
Storage Operations243

External Links