Revoke Update Authority on Solana to Lock the Name, Symbol and URI

Token-2022 metadata fields locked by the revoke

On a Token-2022 token, the update authority is the permission to edit the metadata that the token metadata extension stores on the mint, where the metadata pointer extension points. Those fields are the name, the symbol, the metadata URI (a link to a JSON file) and any extra fields. On older Token-2022 tokens made with Tokenry, the extra fields hold the socials and tags written at creation. After the revoke, none of these fields can be edited, added or removed.

The image and description sit in the JSON file the URI points to. They are not stored on the mint, and the revoke locks only the link to that file.

The token supply, balances, mint authority and freeze authority are untouched. Check that the name, symbol and URI are final before you sign, because the revoke permanently removes the authority that edits them.

Revoking the mint and freeze authorities on the same token

Tokenry revokes one authority per transaction. Clearing mint, freeze and update authority from one token therefore takes three signatures and 0.15 SOL in service fees. The success screen then names the other two, and any your wallet still holds links to its page with the mint address filled in.

Use revoke mint authority to end new minting, and revoke freeze authority on Solana to end the freezing of holder token accounts. For a token you have not created yet, tick the revokes in the Solana token creator, and its 0.15 SOL fee covers them.