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Basic trainerPokeArena

Provably fair

Verify your pulls

  1. Before you open anything, the server commits to a secret seed by showing you only its SHA-256 hash.
  2. Each card is rolled from HMAC-SHA256(server seed, "client seed:nonce:slot"). You choose the client seed, so the server can't pre-pick results; the nonce goes up by one per pack.
  3. Rotate seeds to reveal the old server seed, then re-run every past roll right here in your browser.

Face down

Sign in to see your seeds

Your active seeds and every pack you opened are listed here, each with a button that replays its rolls in your browser.