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
High Aura
Race
Newton Abbot · 19 July 2026 · 14:30
Product
Top Rated Today (Sly Man) · Top Rated — Top SR Ratings
Advised odds
8/13
Confidence
High (raw 158)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-19T09:41:27.181049+01:00

Cryptographic Seal

Leaf hash
2cb5cda343fb318acde105ff4303a93426b411554c26467dccaa015fcaaf738b
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 19 July 2026 at 09:41:27 BST

Certificate reference

#1106

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":"top_rated_v1_2026-07-08"},"committed_at":"2026-07-19T08:41:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-19T08:41:27Z","product":"top_rated","product_lane":"ratings_sr","race":{"course":"Newton Abbot","external_id":"rac_13000003536","internal_id":3057,"race_date":"2026-07-19","race_time":"14:30"},"schema":"sr-pick-v1","selection":{"advised_odds":"8/13","confidence_final":"High","confidence_raw":"158","horse":"High Aura","position_claim":"win"}}

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