CAIP-22: Asset Reference for the ERC721 Asset Namespace
Simple Summary
This document is about the details of the ERC721 asset namespace and reference for CAIP-19.
Abstract
In CAIP-19 a general asset identification scheme is defined. This is the implementation of CAIP-19 for ERC721 (referencing NFT tokens).
Motivation
See CAIP-19.
Specification
ERC721 Asset Namespace
The asset namespace is called "erc721" as in ERC721. It reference erc721 tokens (NFT) in the eip155 namespace (cf. CAIP3).
Asset Reference Definition
The Asset Reference format is the smart contract address of the erc721 token in the current chain_id.
Token ID Definition
The Token Id format is the NFT Identifier of the erc721 specification in the current chain_id.
Rationale
The smart contract address strives for uniqueness for any erc721 tokens in the chain_id scope.
Backwards Compatibility
Not applicable
Test Cases
This is a list of manually composed examples
Copyright
Copyright and related rights waived via CC0.