How KILN works

Mint modes

A creator chooses one mode at launch. It locks, and nobody can change it afterwards.

Fixed

Every NFT costs the same number of tokens, anywhere from 100,000 to 10,000,000. Its cost in SOL moves with the token price.

Step-up

Starts at a set number of tokens and rises by 1% to 50% every N mints, capped at 10,000,000 tokens. Later pieces always cost at least as many tokens as earlier ones.

The mint-out check

A collection that needs more tokens than exist can never sell out. KILN adds up every token a full mint-out would take. Above 30% of supply the form warns the creator, and above 60% it won't launch.

Those limits are low on purpose. Only about 79% of supply ever comes off the pump.fun curve, and many holders will never burn.

When forging opens

By default, forging opens when the coin graduates from the pump.fun curve. Early on the curve, tokens are so cheap that one buyer could forge a whole collection for a few SOL.

A creator can choose a set time instead. If they do, the collection page says so.

The floor

Forging sets what a new NFT costs. While minting is open, that tends to cap the floor. Nothing holds it up.

• When the floor is above forge cost, forging is the cheaper way in. People forge and list, which tends to pull the floor back down.
• When the floor is below forge cost, people buy listings instead and burning stops. The floor can keep falling.
• When the token falls, forge cost falls with it, and new pieces get cheaper.
• When a collection mints out, forge cost stops mattering, and only demand for the art sets the floor.

Fees

Each forge costs the burned tokens, a 0.01 SOL KILN fee, and about 0.0035 SOL of on-chain costs for the NFT. Creators pay once at launch for permanent art storage, at about $77 per GiB at today's rate.

Royalties

Creators set a royalty on-chain. Marketplaces can treat royalties as optional, so creators shouldn't count on receiving them from every sale.

Fairness rules

• The mint rule and max supply lock at launch.
• The burn and mint happen in one transaction. If either fails, neither happens.
• Every token spent on a forge is destroyed. KILN only holds tokens during that transaction.
• A creator reserve is capped at 10% of the collection and shown publicly. These are the only pieces minted without a burn.
• Wallet limits are optional, and they only slow buyers down, since anyone can use several wallets.