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
Bamako Beach
Race
Fairyhouse · 8 July 2026 · 19:25
Product
Top Rated Today (Sly Man) · Top Rated — Top OR Ratings
Advised odds
4/6
Confidence
High (raw 102)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-08T22:13:45.224946+01:00

Cryptographic Seal

Leaf hash
390bef322b0e73ecceaa345bcaee6154aff185552d2a9dd01f0da7bea9b7d65a
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

#318

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_or","race":{"course":"Fairyhouse","external_id":"rac_12016433","internal_id":2607,"race_date":"2026-07-08","race_time":"19:25"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/6","confidence_final":"High","confidence_raw":"102","horse":"Bamako Beach","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 37f5a9dbdbbe414f522b8a3b5e01d8e775ce43d2d8c8cf8f1218877cfd6071e0
2 left aa70af5005dd4076bb9218b0bb2ecbedd4d40c97a33fad835617263157476565
3 right 86eef90944462b52a5db52707862c7e144703ad22e085d6fc971b29f3d9e3e23
4 right 41761ac9854e33c44348993ad3261e676d24ad173c344b74ecb3e8b5437faaba
5 right e7b21ecf251b2a0abf7ba5f104efc2c3e8b3962d1a53b22acb2191b8b4f96554
6 left f711bae12213bc1541e7e9261b3cfba05f29b86200f13fa0a0a0591106c845f9
7 right 5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8 left 258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9 right a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10 right e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294

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