Verify a Prime ticket

Locked before kick-off. A SHA-256 fingerprint is published before the matches. After settlement, the frozen ticket is released so the fingerprint can be checked.

Record integrity verifiedTuesday, 13 October 2026The released ticket file recomputes to the fingerprint published before kick-off. Checked on this server for this page; run the same check in your own browser below.
  1. Prime is frozen before kick-off, from that morning’s already-frozen Board.
  2. A SHA-256 fingerprint of the frozen ticket is published straight away, here and on the Prime page.
  3. The fingerprint chains to the previous Prime day: changing an old ticket would change every fingerprint after it.
  4. Prime also records the fingerprint of the Board it came from, so the ticket can be traced to its source.
  5. After settlement the complete frozen ticket is released as a file, every selection included, win or lose.
  6. Anyone can recompute the fingerprint from that file and compare it with the one published before the matches.

Tuesday, 13 October 2026

Frozen at
06:03 UTC (2026-10-13T06:03:08.395Z)
Fingerprint
7c773d120c74d7c94fd0181170e1ddf9f892f48a86a21718563e70700d86d2bd
Previous fingerprint
8e4a4f105d864a61b42d9cb39f0771c9d3338013230fe69d9ee53355d4f35ee4
Source Board
84408a9799f61dedddc529721f0a839cb2d749c8bbf5fef0b9c4bdc54f33dca6
Canonical version
1
Tickets
Prime 3: ticket, priced, lost
Prime 4: ticket, priced, lost
Frozen ticket file
released: every ticket on this day has settled
Download the frozen ticket

← 2026-10-12 · 2026-10-14 →

Check it yourself, offline

The fingerprint is sha256(prev_hash + "\n" + canonical_json), where the canonical JSON is the ticket definition (selections, probabilities, prices, the source Board fingerprint) with sorted keys and no whitespace. Results are not in it, so settling a ticket cannot change it. A standalone script with no dependencies does the arithmetic:

python verify_prime.py prime-2026-10-13.json --expect 7c773d120c74… --prev prime-2026-10-12.json
Download verify_prime.py · Download prime-2026-10-13.json · Download prime-2026-10-12.json · Fingerprint as JSON

What this does and does not prove