Buy $GACHA on Jupiter (or any Solana aggregator) and you are automatically entered in every draw. Every hour one holder wins every PSA / CGC / BGS slab opened in that window - then has 72h to claim them to their wallet or instant-sell for USDC. No signup, no KYC.
100% fair launch on the Meteora DBC bonding curve - no team supply, no presale, no rug surface. Every swap pays a small fee to the creator wallet. That wallet's only job is to forward those fees into the prize loop.
creatorFee = small % of every swap > fee collector wallet
A cron worker hits the Meteora DBC claim instruction every ~30 seconds. When claimed SOL crosses a threshold it routes through Jupiter v6 to USDC at the best public route. No private RPC, no protected mempool - the route hash is on chain.
claim > Jupiter v6 > USDC (route hash published per sweep)
When the USDC balance crosses one pack price, the pack-buyer hits the Collector Crypt API and queues a graded booster ($50 floor up to $1000 tier). PSA / CGC / BGS slabs only - no raw packs, no shipping roulette, no condition risk.
balance >= packPrice > CC.buyPack() > queue
The pack-opener pulls from the queue, opens each pack through Collector Crypt's API, and ingests every card into the vault for the current window. Whatever opens in the next hour - one card or fifty - is what the next winner takes.
while queue: open() > vault[currentDraw].push(card)
Snapshot every eligible $GACHA holder at the close-slot. HMAC-SHA-256 a server seed we committed to before the window opened with the slot hash and the draw id. Walk the weighted prefix sum with the roll. First holder whose slice covers the offset wins every card opened in the window - then has 72h to claim the slabs or instant-sell them for USDC.
winner = walk(weights, HMAC(seed, slotHash | drawId))
The seed hash binds us before we know who’s in the snapshot. The slot hash is picked by Solana validators, not us. The verifier runs in your browser - no server in the loop.
