VERIFIED · SR-PICK-V1 · SATURDAY RACING · VERIFIED · SR-PICK-V1 ·
SR
AUTHENTICATED
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 Gambino
Race Stratford · 12 July 2026 · 15:35
Product Pick Winner (Mr Fox)
Advised odds 4/7
Confidence Medium
Prompt version —
Predicted at 2026-07-12T09:29:25.068748+01:00
Cryptographic Seal
Leaf hash
d41109875b64eb296245fa7384682d45adebac612cf0d96e567572bd5f641858
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.
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":"fallback_api_error","prompt_version":""},"committed_at":"2026-07-13T21:10:26Z","issuer":"saturday-racing.com","predicted_at":"2026-07-12T08:29:25Z","product":"pick_winner","product_lane":"","race":{"course":"Stratford","external_id":"rac_11987885","internal_id":2766,"race_date":"2026-07-12","race_time":"15:35"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/7","confidence_final":"Medium","confidence_raw":"","horse":"Gambino","position_claim":"win"}}
Copy JSON
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.
# Position Sibling hash
1
right
d452b7f228ba6ef5281c3e0c08fdc925eb8ca5b26b070f290ac4f1f65d57bedc
2
left
7a7e169b4c1bda0a08710d5b7b2afa609076b9be747bc9ecb1908dcc2ebc9c7e
3
left
9021227fad482bceb7fdb9a633e99710c3d7c481fe843a7853e46efc67b5ab11
4
right
525070dad6dce9d4e07407e35e9d841767690ff7f0e5afb2872a2f8b28bcef0a
5
left
ae4e640877ec7e1ed0aa1ecb43c4375691164ecfe38c620f45929139e686dc8f
6
right
8d365ed1fcd50ce4692074b8d288bcbca840a0024697303b2be824fc4a5251f3
7
left
18098d0ad2005f6c8a767a2aceec92cb16c50e0350a0aeb358818e8c739d9967
8
right
f384b0629d9042022b8062f38497000b02dafa843e81b7fba3c37144f3b49f92
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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