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
Regional Rock
Race
Salisbury · 12 August 2026 · 15:00
Product
Top Rated Today (Sly Man) · Top Rated — Top Consensus
Advised odds
10/3
Confidence
Medium (raw 3)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-08-12T09:50:23.124721+01:00

Cryptographic Seal

Leaf hash
8594c6ea4c5b1410c1131f850c993d389ea4b84f1cbd55de96a8c91cab2eda22
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 12 August 2026 at 09:50:23 BST

Certificate reference

#12076

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":"2026-08-12T08:50:23Z","issuer":"saturday-racing.com","predicted_at":"2026-08-12T08:50:23Z","product":"top_rated","product_lane":"consensus","race":{"course":"Salisbury","external_id":"rac_32294134119","internal_id":3958,"race_date":"2026-08-12","race_time":"15:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"10/3","confidence_final":"Medium","confidence_raw":"3","horse":"Regional Rock","position_claim":"win"}}

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