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, 8 September 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, 8 September 2026

Frozen at
06:03 UTC (2026-09-08T06:03:23.621Z)
Fingerprint
f7fe1d54fac42d16df82385bc196a90b99b2a3e4045397ae9aacc7fa9b300946
Previous fingerprint
9869b8b776546d3effc1e92c182167a31c68434f17ca974d2bcad1dde68a77aa
Source Board
6edc45b450003b4fec1942c7f1fee19cc86728658aef23ff501b629ed09e10e4
Canonical version
1
Tickets
Prime 3: ticket, priced, won
Prime 4: ticket, priced, won
Frozen ticket file
released: every ticket on this day has settled
Download the frozen ticket

2026-09-07 · 2026-09-09

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-2026-09-08.json --expect f7fe1d54fac4 --prev prime-2026-09-07.json
Download verify_prime.py · Download prime-2026-09-08.json · Download prime-2026-09-07.json · Fingerprint as JSON

What this does and does not prove