Saturday Racing · The Transparency Ledger

Certificate of Pick Authentication

Issued under schema SR-PICK-V1

Verifying in your browser…
Hashing the pick's canonical bytes with your device's SHA-256.

This is to certify that the pick recorded below was cryptographically committed to Saturday Racing's transparency ledger before the race ran. The commitment is a SHA-256 leaf hash of the canonical bytes; any subsequent tampering breaks the hash and this certificate turns red. The check runs on the reader's own device — no trust required from us.

The Pick

Horse
Far Above Dream
Race
Goodwood · 31 July 2026 · 15:35
Product
Race Paper (LLaMa)
Advised odds
6/1
Confidence
High (raw high)
Prompt version
race_paper_v1_2026-07-21
Predicted at
2026-07-31T22:59:12.546401+01:00

Cryptographic Seal

Leaf hash
83671df0da61a6686b3e4a5d744170a25ac5104d7cfff4590a42ca0a115f6165
Your browser
Batch
Not yet batched. The end-of-day Merkle tree hasn't assembled yet — the leaf hash above is nonetheless independently verifiable now.

Signed

Saturday Racing Editorial Ledger

Committed 31 July 2026 at 22:59:12 BST

Certificate reference

#10285

Technical appendix — canonical bytes & Merkle proof

The canonical bytes

This is the exact JSON that was hashed. Copy it, run sha256sum on it yourself, and you should get the leaf hash above.

{"attribution":{"pick_source":"story_score","prompt_version":"race_paper_v1_2026-07-21"},"committed_at":"2026-07-31T21:59:12Z","issuer":"saturday-racing.com","predicted_at":"2026-07-31T21:59:12Z","product":"race_paper","product_lane":"","race":{"course":"Goodwood","external_id":"rac_11991681","internal_id":3561,"race_date":"2026-08-01","race_time":"15:35"},"schema":"sr-pick-v1","selection":{"advised_odds":"6/1","confidence_final":"High","confidence_raw":"high","horse":"Far Above Dream","position_claim":"win"}}

Server-reported status: not_yet_batched · Ledger overview at /verify/