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
Fallacious Promise
Race
Kempton (AW) · 8 July 2026 · 19:48
Product
Top Rated Today (Sly Man) · Top Rated — Top Market Movers
Advised odds
2/1
Confidence
High (raw 54)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-08T22:13:45.265760+01:00

Cryptographic Seal

Leaf hash
d9831172f3ef73ddd48329e292fa5b933c7122f73063f7f9bf3a7f6fbcc71087
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

#324

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":"movers","race":{"course":"Kempton (AW)","external_id":"rac_11992227","internal_id":2593,"race_date":"2026-07-08","race_time":"19:48"},"schema":"sr-pick-v1","selection":{"advised_odds":"2/1","confidence_final":"High","confidence_raw":"54","horse":"Fallacious Promise","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 d903c4b111c9b7c697c19381141d4239a817471f05eb7553669dd78a8c312766
2 right 19baf6b5b14b0ad36c53c4cc1285a6b4f34de0009cbc7843a0b4a6e34b1f541b
3 right d0bc37047b1c9b8f59489411bf4b6911525bdd5dd735582d1740360357267cb8
4 right 8115ae83ff99564d3058e2f8a1222637a39b8bee4ccb6b8a372292c5a32accb6
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/