Chess v1

Provably fair

Verify fairness

The seed decides every random event in this match. Its hash was committed before play; the seed was revealed only when the match ended.

Seed

dc11adb790d47930d5ce6b506116a6d619e6f36a3c5b44e6e75db7b7fbc1a77f

Seed hash

2a9f6a933ea6ec466152329604b7a73b3d6cf2c70e53400e52ffe31f356f8021 = SHA-256 of "degen.match.seed.v1", a zero byte, and the 32 seed bytes. Checked: it matches.

Commitment

Batch 55,015, Merkle root 1fcfa543f40db4da6c9329e88ebec4aeb336daf5a1293a743a1d83c9db4108d9. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree

Merkle path

1. 46957204599bb62d302dde553cfbe010b1eac6e87dfe10c91713e2eeefb85895
2. ce49ef4427e5a0a92d33e1681befa7ac7ddd1f955ba44f764fec5e37bb384aab
3. 69c9f110166c38f0c517404d87393072e0e8592c534b7bc235466b91ed17942d

Checked: the seed hash proves into the root.

To check it yourself, take the replay JSON:

1. Hash the seed as above and compare it with the seed hash.
2. Leaf = keccak256(0x00 ‖ seed hash). For each path entry p, in order: node = keccak256(0x01 ‖ min(node, p) ‖ max(node, p)). The result must equal the root.
3. Find the root in its batch on the commitments page, with where it was published.
4. Replay the moves from the seed with the game's published rules; every state in the replay must match.