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 White Ladder
Race Ayr · 6 July 2026 · 17:00
Product Pick Winner (Mr Fox)
Advised odds 10/3
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-06T07:58:57.038900+01:00
Cryptographic Seal
Leaf hash
6c0ae95f08684da70ddb40d8e1083237596af00ec88c2d9862611d47d7ded4e8
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":"2026-07-06T06:58:57Z","product":"pick_winner","product_lane":"","race":{"course":"Ayr","external_id":"rac_11989887","internal_id":2512,"race_date":"2026-07-06","race_time":"17:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"10/3","confidence_final":"Medium","confidence_raw":"Medium","horse":"White Ladder","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
6c94ca916f295c6e7a97d14c2cecd97a19fae0ada7c916d046d6a4d662f216a4
2
right
d14cfaf5188c0a63306cd9b39bc157a9793ba01866f0df8ec09e51a395023ae9
3
left
ac1d9c9cc99a6aac6b403f1d5a94562c0011180b7019ebd6da911f87f6ae6100
4
right
01c144055b81c8465cf6ace8ed95dbcb2bd26944fcaf2aae3c0530fd01fbdfe8
5
left
ecb615df7d382dc836853be388a5fa46b2c1043c9b076985081e3ac29a6584f3
6
left
a328e066f90b70a2e880de9d27268241c8a61a11737844302019638d7064d37b
7
right
2cc9e7f1f0b7c3ec0e9bb3fdcf68995f9a6e05667eb83c69c735851531edb0da
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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