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
Law Of Average
Race
Hamilton · 17 July 2026 · 20:25
Product
Horses to Watch (Sly Man)
Advised odds
5/4
Confidence
High (raw 22)
Prompt version
htw_v2_2026-07-06
Predicted at
2026-07-17T08:23:59.572971+01:00

Cryptographic Seal

Leaf hash
8ab61158f63475be13b1dee2706619713ffa31193c4f6efeb52a70cfea65bc2b
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 17 July 2026 at 08:23:59 BST

Certificate reference

#987

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":"htw_v2_2026-07-06"},"committed_at":"2026-07-17T07:23:59Z","issuer":"saturday-racing.com","predicted_at":"2026-07-17T07:23:59Z","product":"horses_to_watch","product_lane":"","race":{"course":"Hamilton","external_id":"rac_13000002392","internal_id":2982,"race_date":"2026-07-17","race_time":"20:25"},"schema":"sr-pick-v1","selection":{"advised_odds":"5/4","confidence_final":"High","confidence_raw":"22","horse":"Law Of Average","position_claim":"win"}}

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