Unique Identifier

A token can be identified by its project, collection, and token ID, which serves as a composite key. But it can also be identified by its unique identifier uid, which is a deterministic hash of its project, collection, and token ID.

When a token is created, its uid is generated and stored on-chain. The uid makes it easier for client applications to look up and target tokens due to it being a single value rather than three.

A token may be fetched by its uid using the get_token_by_uid and get_active_token_by_uid functions.

function get_token_by_uid(uid: text): token?
function get_active_token_by_uid(uid: text): token?