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 Belgarum
Race Newton Abbot · 13 July 2026 · 16:42
Product Pick Winner (Mr Fox)
Advised odds 4/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-13T09:33:41.940428+01:00
Cryptographic Seal
Leaf hash
ff847e1f2c0fd098c59636fc49683ad09a87931c1921b748a10d265eb44173df
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":"2026-07-13T08:33:41Z","product":"pick_winner","product_lane":"","race":{"course":"Newton Abbot","external_id":"rac_11998792","internal_id":2804,"race_date":"2026-07-13","race_time":"16:42"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Belgarum","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
ff847e1f2c0fd098c59636fc49683ad09a87931c1921b748a10d265eb44173df
2
right
29e525bb1068788a6ec0c132ed7ed7e0c83d63152330cc44df92b703c723eb7c
3
left
f68f8c41e45c2ec5d935bf5da47e6c31fdc5abfb644a9226417e71069698fe46
4
right
c00abf4d871ec4573ff18ce7e83c9cee29741dcd68dab5bf1173b54f4c7c24b8
5
right
a7e0f50cbc0a2d6b5f9a1cac76325475f00740a7c90489e908f08e8e53f15eed
6
right
46fcaad1fb4facd415d4da06034af0fcdf159fd3853329958c4440cbde4fef72
7
left
2f1c0a63b0c3d3f818bc590a6e9aff8c950e146facb727248c96c99d980e215f
8
left
5029b4611810c87e9e04fd3af160ed33fa21436626c66ccbd825c959f40bd90c
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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