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 Noble Guest
Race Southwell (AW) · 5 July 2026 · 15:05
Product Pick Winner (Mr Fox)
Advised odds 9/4
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-04T22:19:08.413091+01:00
Cryptographic Seal
Leaf hash
ec4ec72562f4a70136ea20adf6b5acb61dc2a0048f70672ad5e75719a5b70a6c
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":"llm","prompt_version":"v3_b557cbd4"},"committed_at":"2026-07-13T21:10:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-04T21:19:08Z","product":"pick_winner","product_lane":"","race":{"course":"Southwell (AW)","external_id":"rac_12016472","internal_id":2501,"race_date":"2026-07-05","race_time":"15:05"},"schema":"sr-pick-v1","selection":{"advised_odds":"9/4","confidence_final":"Medium","confidence_raw":"Medium","horse":"Noble Guest","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
ee65cb8fb4a2dc1dae6246f62380945f32c867980ce3ef915d0868ead5338af4
2
left
b80ca47d22d049f74d9d4961c2f1fb392938b75f5c4af2d0bfdf334b39cccc55
3
left
69aa57a98329ce1c21dcdebe4d203b48dbb712d4369bf33892f1e4f8e4ac9f37
4
right
297c7fc5fb581fc57c84fd9b1464850c3883e7c3a3881b01db86243ff520186d
5
left
793eb2bba37ab7e80c3cc1614e66a33db3e4b217a5e2f3921f51ff8ff177fdbb
6
right
da3d768220597c0636847e1f28e766d918af491f20ffa568c070cdc81dea7c6a
7
right
7b91ffdbc0775ceb1efdc9c047cbf134a340783b2dc1627173e9cef778ec1cf8
8
left
5029b4611810c87e9e04fd3af160ed33fa21436626c66ccbd825c959f40bd90c
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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