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
Rogue Impact
Race
Market Rasen · 5 July 2026 · 14:20
Product
Top Rated Today (Sly Man) · Top Rated — Top SR Ratings
Advised odds
4/1
Confidence
High (raw 157)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-08T22:13:45.548299+01:00

Cryptographic Seal

Leaf hash
ddcfb3fa7405cb741b464c418d1b21cd6249f81c174dd9fa3b531b678b22d837
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

#365

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":"ratings_sr","race":{"course":"Market Rasen","external_id":"rac_11987534","internal_id":2493,"race_date":"2026-07-05","race_time":"14:20"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/1","confidence_final":"High","confidence_raw":"157","horse":"Rogue Impact","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 de4b478f2a8f6dc0247def4c4d59293675d2a1639d159c9971d7369ec98f1f0e
2 right 607286f8a628b14873b8ef72d56d19dab96089611d176b07b894425760519c20
3 left a1e93c67afb2bd0c2ee7abd9496abf5c8df9e9f669ee0817a426e481eaa8758f
4 left 67a1d58aa018abf0b1dd7931c03ef83735b922195dc1a1a4a7988adf7b3664f0
5 right 23e4c3a8f31db10095f7234922ef1e6f9c299921f811af33c6f38876c16d12fa
6 left b495d7542cc68c4b7514051aff9c40ee645b401fdf6a48deafd015554c949f6a
7 left 18098d0ad2005f6c8a767a2aceec92cb16c50e0350a0aeb358818e8c739d9967
8 right f384b0629d9042022b8062f38497000b02dafa843e81b7fba3c37144f3b49f92
9 right 559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10 left f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55

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