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
Saffron Bay
Race
Beverley · 29 August 2026 · 15:35
Product
Pick Winner (Mr Fox)
Advised odds
3/1
Confidence
Medium
Prompt version
Predicted at
2026-08-29T09:22:17.346823+01:00

Cryptographic Seal

Leaf hash
467e04439742bee3521e49ceaa8f988c01d6661289f5624f512fc87702a07ab0
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 29 August 2026 at 09:22:17 BST

Certificate reference

#14897

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":"fallback_api_error","prompt_version":""},"committed_at":"2026-08-29T08:22:17Z","issuer":"saturday-racing.com","predicted_at":"2026-08-29T08:22:17Z","product":"pick_winner","product_lane":"","race":{"course":"Beverley","external_id":"rac_32295817372","internal_id":4586,"race_date":"2026-08-29","race_time":"15:35"},"schema":"sr-pick-v1","selection":{"advised_odds":"3/1","confidence_final":"Medium","confidence_raw":"","horse":"Saffron Bay","position_claim":"win"}}

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