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 Three Socks On
Race Salisbury · 11 July 2026 · 19:10
Product Pick Winner (Mr Fox)
Advised odds 2/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-11T07:54:12.133189+01:00
Cryptographic Seal
Leaf hash
68a0c725ea8441ff267c840aba9211e8f680d2d3d5279457000f2371236fdbfe
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":"2026-07-11T06:54:12Z","product":"pick_winner","product_lane":"","race":{"course":"Salisbury","external_id":"rac_13000000039","internal_id":2734,"race_date":"2026-07-11","race_time":"19:10"},"schema":"sr-pick-v1","selection":{"advised_odds":"2/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Three Socks On","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
left
677d423e6340cd5134c96738f189c749beaf9f3d5064f34328e8c14827c88aa2
2
right
a16488be6c5e6054a199e553e2c75b1059a0d5bf5ef2dd86f6714a27ba18cd8e
3
right
2d5a621cdf9f8c55942591f013730de15aed4f630230d7085e594df3e9f7e3e5
4
left
6f627e11620f3983d89d82fcb0b5d96b612fb4d71efbe7d7a3742641201e070a
5
right
2a8e4c62bd3660bc06e50dba5a98fbb2b0eca3a11ede89b08ddb5647c2c2f034
6
left
a328e066f90b70a2e880de9d27268241c8a61a11737844302019638d7064d37b
7
right
2cc9e7f1f0b7c3ec0e9bb3fdcf68995f9a6e05667eb83c69c735851531edb0da
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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