Backing a launch

Supporting a FWAIR launch means committing ETH backing to one or more sequential NFT positions. It is not an immediate NFT purchase, and the artist does not receive the ETH merely because a position was supported. The campaign holds the backing until it assigns an outcome.

Backing price and multipliers

Every campaign has one fixed base backingPrice. A supporter chooses a whole-number multiplier and pays exactly count × backingPrice × backingMultiplier. The one-argument support(count) path is equivalent to 1×.

• Multipliers are whole numbers from 1× through 10×. A launch starts with a maximum of 5×, and the artist may change that ceiling through the Supporting phase.
• A ceiling change affects future support calls only. Existing positions retain the backing and multiplier they recorded when supported.
• A higher multiplier commits more ETH and lengthens the earliest voluntary withdrawal time if the position becomes an active FWA listing.
• Once listed, that backing becomes the position's normal FWA backing: it funds the standing bid and affects selection weight inside FWA.
• A higher multiplier does not improve direct-award odds and does not create additional reward shares. Every fully supported position receives one permanent supporter share.

Positions are assigned in order

Supporters choose a count, not specific NFTs. The campaign assigns the next unsupported token IDs in sequence. A transaction mined first receives the earlier positions, so confirmed PositionSupported events are the final assignment record.

Each campaign also has a per-wallet maximum. It limits one address, not one person, and is not Sybil resistance. An optional purchase-policy contract may apply another wallet rule; the website checks that policy before showing a wallet as eligible to back.

Individual positions cannot be cancelled while the campaign remains open. Backing becomes claimable only after failure, a direct award, an FWA outcome, a voluntary listing withdrawal, or deadline recovery assigns it.

Direct-award percentage

The artist chooses percentToBackers before support opens. It defaults to 10%, may be a whole percentage from 10% through 50%, and locks before anyone can commit backing. When randomness is requested, the target number of direct awards is frozen as floor(tokenCount × percentToBackers / 100).

The calculation rounds down. A 9-NFT campaign at 10% therefore has zero direct awards, while a 100-NFT campaign at 10% targets ten. The multiplier attached to a position does not change its probability of being among those awards.

Once a fully backed launch begins assigning outcomes, every processed position becomes either a direct backer award or a normal FWA listing. See Where funds go for the financial result of each path.