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
Trean
Race
Leopardstown · 17 October 2026 · 16:15
Product
Bet of the Day (Sly Man)
Advised odds
6/5
Confidence
MEDIUM (raw 7.10)
Prompt version
v2_97b8f1cb
Predicted at
2026-10-17T09:40:44.352110+01:00

Cryptographic Seal

Leaf hash
dfb5a17e297ada8df38d60a4914682a8dc2df506ba20be91c86618ce3f4d5bdd
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 17 October 2026 at 09:40:44 BST

Certificate reference

#24001

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":"bod_composite","prompt_version":"v2_97b8f1cb"},"committed_at":"2026-10-17T08:40:44Z","issuer":"saturday-racing.com","predicted_at":"2026-10-17T08:40:44Z","product":"bod","product_lane":"","race":{"course":"Leopardstown","external_id":"rac_32301533459","internal_id":6596,"race_date":"2026-10-17","race_time":"16:15"},"schema":"sr-pick-v1","selection":{"advised_odds":"6/5","confidence_final":"MEDIUM","confidence_raw":"7.10","horse":"Trean","position_claim":"win"}}

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