VERIFIED · SR-PICK-V1 · SATURDAY RACING · VERIFIED · SR-PICK-V1 ·
SR
AUTHENTICATED
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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 Nevermindtherain
Race Leopardstown · 9 July 2026 · 16:50
Product Pick Winner (Mr Fox)
Advised odds 9/4
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-08T18:59:14.000907+01:00
Cryptographic Seal
Leaf hash
b7eb914124e7934b21e22c23f6621264568f81829a29df302346ee43e2390332
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":"2026-07-08T17:59:14Z","product":"pick_winner","product_lane":"","race":{"course":"Leopardstown","external_id":"rac_12016238","internal_id":2643,"race_date":"2026-07-09","race_time":"16:50"},"schema":"sr-pick-v1","selection":{"advised_odds":"9/4","confidence_final":"Medium","confidence_raw":"Medium","horse":"Nevermindtherain","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
b74ebb416d5e04da9d59731116c71e9335495669cdcf2827f066049fd13607e2
2
left
1ad7d362590c5647d3ac7f90b04d61354bb554c9261a134747a0ecac9f2090dd
3
right
98efdb827ba82786a4a440bfbc2a4c3c741702e16e010fc89359de011ff075ca
4
left
4b57af79a5bb0ac06c398030bc3ee1c9e286e0109b4dffff0c0ff384192d0227
5
right
cdc43ee135d27ed2e4e2e9c87e3d3d2a18ea09ac1b149404ecdd52998e761386
6
right
204feec8495b2d1b806e60958c15c429141021ee238922bdfcbd4c87367079be
7
right
7b966ba7fb6479ee18f2a8f9b8925b3c3366b9fe81cdbeb08938a02c83890686
8
right
f384b0629d9042022b8062f38497000b02dafa843e81b7fba3c37144f3b49f92
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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