Melt

Melt is a choice made at launch. When it is on, the coin's rate steps down by 1 point every 7 days after graduation, until it reaches the floor the creator picked (from 0 % up to the starting rate). The default is on, with a 1 % floor.

Why only after graduation

During the curve, the transfer-fee config authority belongs to LaunchLab's authority PDA, so no one can change the rate. At graduation LaunchLab hands that authority to the platform's transfer_fee_extension_auth, Rainfall's keeper. From then on the keeper applies each melt step with setTransferFee.

When a step takes effect

Token-2022 applies a new rate two epochs after it is set, about four days. The coin page shows the next rate and the UTC date it starts.

What cannot change

The starting rate is a ceiling: the keeper only ever lowers a rate, never raises it. The floor and the melt choice are written into the coin's metadata at launch and shown before signing. With melt off, the keeper never touches the rate.