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
Fully Stocked
Race
Nottingham · 18 July 2026 · 18:30
Product
Top Rated Today (Sly Man) · Top Rated — Top SR Ratings
Advised odds
8/11
Confidence
High (raw 158)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-18T08:11:41.238874+01:00

Cryptographic Seal

Leaf hash
363d041b8893f2bcc0707537d8f85f3be3d56515008ed3c0d6b7e08b49e02cc2
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 18 July 2026 at 08:11:41 BST

Certificate reference

#1054

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":"top_rated_v1_2026-07-08"},"committed_at":"2026-07-18T07:11:41Z","issuer":"saturday-racing.com","predicted_at":"2026-07-18T07:11:41Z","product":"top_rated","product_lane":"ratings_sr","race":{"course":"Nottingham","external_id":"rac_13000003120","internal_id":2882,"race_date":"2026-07-18","race_time":"18:30"},"schema":"sr-pick-v1","selection":{"advised_odds":"8/11","confidence_final":"High","confidence_raw":"158","horse":"Fully Stocked","position_claim":"win"}}

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