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
Dubai Venture
Race
Pontefract · 7 July 2026 · 15:48
Product
Top Rated Today (Sly Man) · Top Rated — Top Consensus
Advised odds
11/4
Confidence
High (raw 4)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-08T22:13:45.364310+01:00

Cryptographic Seal

Leaf hash
81b0fea53d8dcec12294748a2ea5ca5db16293da61e9021a1f88f5ada3157f68
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 22:10:27 BST

Certificate reference

#339

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":"2026-07-13T21:10:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-08T21:13:45Z","product":"top_rated","product_lane":"consensus","race":{"course":"Pontefract","external_id":"rac_11990147","internal_id":2552,"race_date":"2026-07-07","race_time":"15:48"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/4","confidence_final":"High","confidence_raw":"4","horse":"Dubai Venture","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 left 7fe73d4c2a5ff617491f775c0a59c4a6c3f6ea5a3abbd15fe705c1d6b4221160
2 left 8b1eaa8ebb076497a1fcc312e2a93db6649ab223988d8174e02aecd19c547efd
3 right c0c299c7eeebceb2d45ac68fa9b545e3773481e7ccf01c17848b77ab52f0c77d
4 right e1a58408f4b742fc467a0c54cdb516dc6e0b8fc324cb984a63bcdf9c56ffa73f
5 left a28a6c373bbfec5b760df86c1f341027d939b8fc52996d217566314b9c0345d5
6 left 55948f4e8e29440793f46045b1f25282558c5bbca3cffc7780c2a3c54ca6d6ec
7 left b20426c9805bd5f17d7d0c3747a91f6539d868cc80d6de1f3197b66c180d007b
8 right f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9 left c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10 right e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294

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