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
Crest of Fire
Race
Ascot · 10 July 2026 · 15:10
Product
Top Rated Today (Sly Man) · Top Rated — Top Signals
Advised odds
11/4
Confidence
Speculative
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-10T09:41:59.382727+01:00

Cryptographic Seal

Leaf hash
706bac96085bbebf79b2a378c7f3c63ff08795faa74b825f04b875e760e13443
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

#510

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":"2026-07-10T08:41:59Z","product":"top_rated","product_lane":"signals","race":{"course":"Ascot","external_id":"rac_11990940","internal_id":2652,"race_date":"2026-07-10","race_time":"15:10"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/4","confidence_final":"Speculative","confidence_raw":"","horse":"Crest of Fire","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 70461a3516792e15870e634c386a122c25ce097dbd2fc890e8e5595278338718
2 right 39f52fc6fa0d075427544029c6e6760a940b21431040bf24d00d3f18424d136a
3 left 0da56331b800ef73131d70027fe068a565a5ac6f9a354a57dce691aeb46f4e2e
4 right 09181a3b616be26fd777ab06f7478c4d61af8911e4c1da467d5c39f85d7f8eba
5 right c362f8f13d29a49f9fc723913698178dc30b6ecc7c385c0482b3e28c896819f8
6 right 11a3ade288925daffe08c7c49239d533eac4edd4330aa411ec5a586d3ef88887
7 left b20426c9805bd5f17d7d0c3747a91f6539d868cc80d6de1f3197b66c180d007b
8 right f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9 left c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10 right e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294

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