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
Rogue Passion
Race
Carlisle · 11 August 2026 · 15:15
Product
Horses to Watch (Sly Man)
Advised odds
4/7
Confidence
High (raw 18)
Prompt version
htw_v2_2026-07-06
Predicted at
2026-08-11T09:55:07.552778+01:00

Cryptographic Seal

Leaf hash
2edac342e461fb67b05a53fbc3ff7e26ea3d86f7795f40cecf7bbd6b6f480377
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 11 August 2026 at 09:55:07 BST

Certificate reference

#11925

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":"2026-08-11T08:55:07Z","issuer":"saturday-racing.com","predicted_at":"2026-08-11T08:55:07Z","product":"horses_to_watch","product_lane":"","race":{"course":"Carlisle","external_id":"rac_32294015962","internal_id":3913,"race_date":"2026-08-11","race_time":"15:15"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/7","confidence_final":"High","confidence_raw":"18","horse":"Rogue Passion","position_claim":"win"}}

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