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
Round The Table
Race
Doncaster · 23 July 2026 · 14:40
Product
Horses to Watch (Sly Man)
Advised odds
4/11
Confidence
High (raw 20)
Prompt version
htw_v2_2026-07-06
Predicted at
2026-07-23T09:34:31.508076+01:00

Cryptographic Seal

Leaf hash
bbb5debc33f8d58ee80bf0bd8b1f9cfe5b9340187bca21b480c421d10dd0e8c5
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 23 July 2026 at 09:34:31 BST

Certificate reference

#9081

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":"2026-07-23T08:34:31Z","issuer":"saturday-racing.com","predicted_at":"2026-07-23T08:34:31Z","product":"horses_to_watch","product_lane":"","race":{"course":"Doncaster","external_id":"rac_32292080899","internal_id":3201,"race_date":"2026-07-23","race_time":"14:40"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/11","confidence_final":"High","confidence_raw":"20","horse":"Round The Table","position_claim":"win"}}

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