How the odds work

There is no house RNG here. Every pack is rolled with verifiable randomness on Solana, and every step is something you can check yourself.

1
You pay, the machine gets a memo
Your purchase carries a unique memo. Nothing about the outcome exists yet — the machine can't peek and neither can we.
2
A VRF picks the tier
A verifiable random function produces a roll that is provably unpredictable and provably unmanipulated. The roll lands in one of the tier ranges you saw on the machine card (common / uncommon / rare / epic). Those odds are published live, straight from the machine.
3
Provable selection picks the card
Within that tier, the specific card is chosen by a deterministic, auditable selection over the pool you can browse on the shop page. The roll number is shown on your reveal so you can verify it.
4
The real card is yours
Every NFT is backed 1:1 by a physical graded card in Collector Crypt's insured vault. Keep it, sell it back within 72 hours for instant USDC, or redeem it and have the slab shipped to you.

Read the full spec

The randomness design, on-chain program details and how to independently verify a roll are documented by Collector Crypt.

Unopened packs must be opened within 2 hours; abandoned packs are refunded automatically shortly after.

Rate limits: 50 unsigned packs per 10 minutes; 30 unopened non-turbo packs per wallet per machine per 2 hours.