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
Nakila Sun
Race
Windsor · 24 August 2026 · 17:48
Product
Top Rated Today (Sly Man) · Top Rated — Top SR Ratings
Advised odds
13/8
Confidence
High (raw 159)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-08-24T09:50:22.050779+01:00

Cryptographic Seal

Leaf hash
e667d4d6214ec771f185cb104a9abfaf4afc61966ecfb175c59f0589fd04e6ad
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 24 August 2026 at 09:50:22 BST

Certificate reference

#14111

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":"2026-08-24T08:50:22Z","issuer":"saturday-racing.com","predicted_at":"2026-08-24T08:50:22Z","product":"top_rated","product_lane":"ratings_sr","race":{"course":"Windsor","external_id":"rac_32295304067","internal_id":4417,"race_date":"2026-08-24","race_time":"17:48"},"schema":"sr-pick-v1","selection":{"advised_odds":"13/8","confidence_final":"High","confidence_raw":"159","horse":"Nakila Sun","position_claim":"win"}}

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