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
Saucats
Race
Newton Abbot · 13 July 2026 · 15:42
Product
Top Rated Today (Sly Man) · Top Rated — Top Consensus
Advised odds
11/2
Confidence
High (raw 4)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-13T09:50:10.404300+01:00

Cryptographic Seal

Leaf hash
658dedd26d7d2fcf4578c72b66a99d4ae8e9ad79f8087d0908b6147b38f2db4c
Your browser
Batch
13 July 2026 · 709 leafleaves · inspect batch →
Merkle root
eba1d4cb07b18df5f26ea6211dae664c2a8d9ce7bdcd95a3a7d9da03ed6cf62b
Your browser walk
On-chain
Off-chain verified. Anchoring on-chain is a separate, gas-gated step.

Signed

Saturday Racing Editorial Ledger

Committed 13 July 2026 at 22:10:26 BST

Certificate reference

#711

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":"2026-07-13T21:10:26Z","issuer":"saturday-racing.com","predicted_at":"2026-07-13T08:50:10Z","product":"top_rated","product_lane":"consensus","race":{"course":"Newton Abbot","external_id":"rac_11998766","internal_id":2802,"race_date":"2026-07-13","race_time":"15:42"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/2","confidence_final":"High","confidence_raw":"4","horse":"Saucats","position_claim":"win"}}

The Merkle proof

Each hop is a sibling hash. Your browser walks these from the leaf up to the root, hashing pairs at each step.

#PositionSibling hash
1 right 6637d68c77fac3dbcae79c4c7a11d03dad12d39284c0d52ae0a9b0a14020d967
2 right 3c5ad88e2afbaab42d878159324b006f74008621bc7b4de70dd963de5446fe97
3 right c49cfef2362febe64b5179fe26c1fda0682cccda4bcc86e9af3bd3bfc6b2e476
4 right ea105fe4592ceec53f0d382aeb6b1891be1217905259d9adef8c1cb9383bc5ed
5 right 2a8e4c62bd3660bc06e50dba5a98fbb2b0eca3a11ede89b08ddb5647c2c2f034
6 left a328e066f90b70a2e880de9d27268241c8a61a11737844302019638d7064d37b
7 right 2cc9e7f1f0b7c3ec0e9bb3fdcf68995f9a6e05667eb83c69c735851531edb0da
8 right f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9 left c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10 right e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294

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