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
Hardy Warrior
Race
Galway · 28 July 2026 · 18:45
Product
Horses to Watch (Sly Man)
Advised odds
4/1
Confidence
High (raw 20)
Prompt version
htw_v2_2026-07-06
Predicted at
2026-07-28T09:35:25.990145+01:00

Cryptographic Seal

Leaf hash
e25b6705fb4f78e049b587d4aa7d961579af92b89cd77ff1c7cf8d4caa641c6a
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 28 July 2026 at 09:35:25 BST

Certificate reference

#9824

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":"2026-07-28T08:35:25Z","issuer":"saturday-racing.com","predicted_at":"2026-07-28T08:35:25Z","product":"horses_to_watch","product_lane":"","race":{"course":"Galway","external_id":"rac_32292733668","internal_id":3428,"race_date":"2026-07-28","race_time":"18:45"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/1","confidence_final":"High","confidence_raw":"20","horse":"Hardy Warrior","position_claim":"win"}}

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