How to enforce fixed supply

Goal: guarantee, at the protocol level, that a native token can never be minted again — making its supply permanently fixed.

Why

CreateMint makes the caller the mint authority, and only that authority can MintToOwner. To enforce fixed supply you must renounce the authority after the final mint.

Steps

1. Mint the full intended supply to its destination (e.g. a treasury account).
2. Renounce the mint authority:

ace_buildTokenSetAuthority(mint_id_hex)   // omit new_authority → renounce
   → { payload_hex, renounced: true }

Sign and submit via ace_submitSignedPayload as the current authority.

What renouncement does

It sets the mint authority to the all-zero identity (RENOUNCED_AUTHORITY). After that:

• MintToOwner fails the caller == authority check for every real signer — the zero identity has no signing key.
• Re-renouncing is rejected.

Supply is now immutable. This is a protocol guarantee, not a process promise.

WARNING

Renouncement is irreversible. Confirm the full supply is minted and distributed before you renounce.