Doppelganger
Transient Labs' Doppelganger contract extends ownership by letting collectors change their token to any option in a contract-wide array of metadata.
Overview
Doppelganger is a contract that builds off our ERC7160TL contract to allow creators to add metadata to a contract-wide array. Collectors of tokens on this contract can then change their tokens to display any desired metadata option available in the array.
Contract-Wide Metadata Array
Instead of minting specific metadata for a specific token, creators simply add metadata to an array on the contract. This array is dynamic and can grow (almost) infinitely big. All tokens then have access to this array.
Collectors of the tokens on this contract can choose to change their token's metadata to any option in the array. This emits a MetadataUpdate event that let's marketplaces re-index the metadata and display it.
As every token has access to the array, this is a new take on an edition that can be used in numerous ways.
Source
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