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
State Pension
Race
Fairyhouse · 5 October 2026 · 14:30
Product
Lay of the Day (Sly Man)
Advised odds
1.57
Confidence
high
Prompt version
lod_scorer_v1
Predicted at
2026-10-05T09:35:05.689027+01:00

Cryptographic Seal

Leaf hash
683514f95f6c13afbfcb05a574337dea297e90c927ac499993f2eea3e6ebf35f
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 5 October 2026 at 09:35:05 BST

Certificate reference

#21733

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":"lod_scorer","prompt_version":"lod_scorer_v1"},"committed_at":"2026-10-05T08:35:05Z","issuer":"saturday-racing.com","predicted_at":"2026-10-05T08:35:05Z","product":"lod","product_lane":"","race":{"course":"Fairyhouse","external_id":"rac_32299954804","internal_id":6078,"race_date":"2026-10-05","race_time":"14:30"},"schema":"sr-pick-v1","selection":{"advised_odds":"1.57","confidence_final":"high","confidence_raw":"","horse":"State Pension","position_claim":"lay"}}

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