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
Box To Box
Race
Windsor · 13 August 2026 · 19:41
Product
Top Rated Today (Sly Man) · Top Rated — Top TS Ratings
Advised odds
16/1
Confidence
Medium (raw 92)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-08-13T09:50:22.355120+01:00

Cryptographic Seal

Leaf hash
bead3c96729070142235e35ece42048ab50c036fb3fd820bb8e75e890bb0eba4
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 13 August 2026 at 09:50:22 BST

Certificate reference

#12212

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":"2026-08-13T08:50:22Z","issuer":"saturday-racing.com","predicted_at":"2026-08-13T08:50:22Z","product":"top_rated","product_lane":"ratings_ts","race":{"course":"Windsor","external_id":"rac_32294227095","internal_id":3993,"race_date":"2026-08-13","race_time":"19:41"},"schema":"sr-pick-v1","selection":{"advised_odds":"16/1","confidence_final":"Medium","confidence_raw":"92","horse":"Box To Box","position_claim":"win"}}

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