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
Little Mi Mi
Race
Haydock · 16 October 2026 · 16:32
Product
Pick Winner (Mr Fox) · Pick Winner — Shortlist #3
Advised odds
—
Confidence
Medium
Prompt version
—
Predicted at
2026-10-16T09:29:14.508868+01:00

Cryptographic Seal

Leaf hash
795ab0e0d22dfc7c37a8a383361ada78f7dbcc3fc8dd37a1e9e5f9c73413fc6c
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 16 October 2026 at 09:29:14 BST

Certificate reference

#23710

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":"2026-10-16T08:29:14Z","issuer":"saturday-racing.com","predicted_at":"2026-10-16T08:29:14Z","product":"pick_winner","product_lane":"pw_3","race":{"course":"Haydock","external_id":"rac_32301221602","internal_id":6510,"race_date":"2026-10-16","race_time":"16:32"},"schema":"sr-pick-v1","selection":{"advised_odds":"","confidence_final":"Medium","confidence_raw":"","horse":"Little Mi Mi","position_claim":"win"}}

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