TestnetDemo on Robinhood Chain — no real ETH is spent and no real cards are shipped.
Bindr.fun

Provably_fair // The_Ledger_never_lies

How every pack is drawn

Neither we nor you can pick what’s in a pack. If we ever fail to reveal a pack within an hour, you get your money back plus 10% — and the miss is counted publicly on-chain.

  1. Step_01

    We lock in a seed before you buy

    Before any pack goes on sale, we publish a fingerprint (hash) of a secret server seed on Robinhood Chain. We can’t change it afterwards.

  2. Step_02

    You add your own seed

    When you buy, your wallet adds a random seed of its own. We can’t know it in advance, and you can’t know ours.

  3. Step_03

    We reveal ours and the pack is fixed

    We reveal the server seed. The contract checks it matches the fingerprint and combines both seeds into the pack seed.

  4. Step_04

    Anyone can recompute it

    The pack seed and the set’s published odds decide every card. Paste any pack seed below and you’ll get the same ten cards.

Recompute a pack

Every pack in your binder shows its seed — tap Verify on a pack, or paste a seed here.