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 Two Tribes
Race Newmarket · 11 July 2026 · 15:25
Product Pick Winner (Mr Fox)
Advised odds 17/2
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-11T07:45:55.612622+01:00
Cryptographic Seal
Leaf hash
62859d5d01b37a635c8a410aed00ed17a79f9ebfa30d0a7c54b706eded29f08d
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":"2026-07-13T21:10:26Z","issuer":"saturday-racing.com","predicted_at":"2026-07-11T06:45:55Z","product":"pick_winner","product_lane":"","race":{"course":"Newmarket","external_id":"rac_11963224","internal_id":2725,"race_date":"2026-07-11","race_time":"15:25"},"schema":"sr-pick-v1","selection":{"advised_odds":"17/2","confidence_final":"Medium","confidence_raw":"Medium","horse":"Two Tribes","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
63f5e61c6d4e096cf09432e257938cce9396ac22704274f8ed97eeb148333bce
2
left
db8faee48eb46335a51450760426e230bb1d26066da4ed1406b7c4949a01e003
3
right
71c027f6acac7e3c537002aa16177d5bc24ca4164172c3e8bc14722f59091bc1
4
left
850a305a46d1ab56649dfdd2fb90d857a14414ad9958ae3caee6a209c012f1e5
5
left
e03f92d958e5413163b35715e1d7369afc39ca8e31ac016bd7de801fade5670d
6
right
0a5bb34874ff669c5cf989b9de5608e66f456e8a2c0e4549102b83804e867c02
7
right
2cc9e7f1f0b7c3ec0e9bb3fdcf68995f9a6e05667eb83c69c735851531edb0da
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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