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 Consensus
Advised odds
11/4
Confidence
High (raw 4)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-10T09:41:59.471580+01:00

Cryptographic Seal

Leaf hash
557c93f6143abfef244c863d8312136da986cdef06c22294f53e0000ccab6ef1
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

#521

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":"consensus","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":"High","confidence_raw":"4","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 54dce29dba14bce4790dda94ef1f93f792ae68a4837ce91987c91188899f8af9
2 left cacaac4009fa17423de1403fc5aad5c0149e7b3fb98da16e0b6a2f89f2c2d259
3 right c34dc180589cdd1962583e87a7f4fda78d7517642220c944c0475ee0b09b0acd
4 left 512f0c307167bff1d6ff425d45f3a439a43cd4cb2ab6ed2963b9e0b6e12b6039
5 right 8482e981bcd79800d8fe2d1ac2fc4e783eb3f5a068d13e0f7b209a25cf2a3317
6 left fc52f76fefc833e1107b03796f834d4ba1336aeb1778053c068d9688bda96b1d
7 left abd1f2af8516869713aed81c9f26f27b73cfb533f542009e428008b662810a09
8 left 258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9 right a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10 right e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294

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