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 Dissenter
Race Bath · 15 July 2026 · 15:01
Product Pick Winner (Mr Fox)
Advised odds 4/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-15T07:02:45.532067+01:00
Cryptographic Seal
Leaf hash
7dc60a15b2573cd62ebe058ad4a785abd94b2f1fba7714f6db720c2b97822217
Your browser
…
Batch
15 July 2026 · 60 leafleaves
· inspect batch →
Merkle root
e4408eaba1df1a5c38c539864028dfae01482f63ce7383bbf8cabee5597ad9af
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":"2026-07-15T06:02:45Z","issuer":"saturday-racing.com","predicted_at":"2026-07-15T06:02:45Z","product":"pick_winner","product_lane":"","race":{"course":"Bath","external_id":"rac_13000000520","internal_id":2893,"race_date":"2026-07-15","race_time":"15:01"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Dissenter","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
7d9605bee42d7f7fad0387f662eed3555cc1ea779188a852c25189199f924354
2
left
ca22a43bc7e2bb39c0308e2b02bd7bedecbdb8c2cee91f68f078af108952f77c
3
right
2c74e9e1c20467898e71fb9965e5041664b9873ffcaa2490ec7b9a4b92d948a4
4
left
06bf6111858d941a85d3a71acd011426717213c4d844420904a164771112f1a3
5
left
f8e9ed95e02d6eeca5640914127c50ed23974ac9c957b8bc4831b728aababd9a
6
right
ddd2125ac2c0a6a67ecd0d29863265e6b24768d6958939fe937aafeb1b856e90
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