Original, wrapped and bridged NFT contracts
An original NFT and a wrapped or bridged representation can have different contracts and networks. Shared artwork or token numbers do not make their identifiers interchangeable.
Worked example
| Version | What to record | Question to resolve |
|---|---|---|
| Original | Original chain + contract + ID | Where was this ledger issued? |
| Wrapped | Wrapper chain + contract + ID | How is the original held or represented? |
| Bridged | Destination chain + contract + ID | Which bridge and representation? |
Follow the version’s own documentation
Wrapping can place an asset in a contract and issue another representation. A bridge can use lock-and-mint, burn-and-mint or another design. Do not assume the mechanism or redemption behavior without project-specific evidence.
A practical lookup
If an item link opens a contract different from an official original mapping, inspect whether the project documents that wrapper or bridge. Even if it does, check the chain and version before importing it. This directory’s original-contract labels do not validate every wrapper.
Common pitfalls
- A bridge is not just a change to the wallet’s network selector.
- Legacy CryptoPunks are not standard ERC-721; wrapper interfaces differ.
Related references
Primary sources
Examples explain identifiers. They are not investment recommendations.