GALABET TOOLS / SHA-256

Does the revealed seed
match the promise?

Paste a retired server seed and the commitment saved before play. This checks one relationship: whether that exact seed produces that hash. For a game result, use the record verifier.

Calculated in this browser. These fields are not submitted, put in the URL or saved by this tool. Use a revealed seed; keep active server seeds on your server.

Exactly 64 lowercase hexadecimal characters. Spaces and letter case are not changed.

Leave blank to calculate the hash only.

UTF-8 TEXT → SHA-256

Calculated commitment

Waiting for a revealed seed.

A match does not establish when the commitment was published. Keep the original commitment record as well.

The string is the input.

GFS hashes the seed’s 64-character text as UTF-8. Decoding it into 32 bytes first produces a different hash. This tool calls the same commit() function used by the reference library.