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
Dancing Saxon
Race
Galway · 27 July 2026 · 19:15
Product
Horses to Watch (Sly Man)
Advised odds
4/5
Confidence
High (raw 17)
Prompt version
htw_v2_2026-07-06
Predicted at
2026-07-27T09:44:51.140423+01:00

Cryptographic Seal

Leaf hash
50baf49c38662e4c4d33bfa6088d761a86d3686cc03a670123e5cb558726b023
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 27 July 2026 at 09:44:51 BST

Certificate reference

#9683

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":"2026-07-27T08:44:51Z","issuer":"saturday-racing.com","predicted_at":"2026-07-27T08:44:51Z","product":"horses_to_watch","product_lane":"","race":{"course":"Galway","external_id":"rac_32292691054","internal_id":3395,"race_date":"2026-07-27","race_time":"19:15"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/5","confidence_final":"High","confidence_raw":"17","horse":"Dancing Saxon","position_claim":"win"}}

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