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- Adopt a token standard (a combination of the TTF and ERC- inspired standards)
- Implement a marketplace (recode samples )
- Use Hyperledger Fabric as the underlying utility. See how ERC standards have been implemented in Fabric.
- Generalize (see below)A complex systems view (Identity, distribution, decentralization, fairness, payment systems, cross-border, multi-protocol, interoperability of tokens, standards)- See under extensions.
As Ethereum has been the main driver of NFTs, standards are most mature in EIPs (Ethereum Improvement Proposals). These standards have been implemented in Open Zeppelin and in other locations. Three standards are of note: ERC 721, ERC-1155 and ERC 998. Of this ERC-721 is most commonly used. The implementation of eThaler as ERC-1155 in Hyperledger labs and its subsequent reuse in the Climate Accounting project means that these standards are mappable to Hyperledger projects like Fabric.
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