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 Forza Magico
Race Navan · 11 July 2026 · 14:23
Product Pick Winner (Mr Fox)
Advised odds 7/2
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-11T07:43:38.104160+01:00
Cryptographic Seal
Leaf hash
88cd8e2d1fb216581c04ceea0b229c024fb99585d4ede78fc6591e0337d4e95a
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":"2026-07-11T06:43:38Z","product":"pick_winner","product_lane":"","race":{"course":"Navan","external_id":"rac_12018656","internal_id":2751,"race_date":"2026-07-11","race_time":"14:23"},"schema":"sr-pick-v1","selection":{"advised_odds":"7/2","confidence_final":"Medium","confidence_raw":"Medium","horse":"Forza Magico","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
88c6d232ff20230925ce8609a066aab310e3885c9ce12eafef01af686a921796
2
right
7209f10fefdb8ce5d66414b4cc8ab6c74da959f8fbed21aeb1a15d24fc67930d
3
left
703ba76c4c550261f3984757cd3f43a0d1e5c36fddbf1e0271cca4d305225329
4
left
3c66b199767f094303781e5ce3f08d349d3262094eae7a029e0035ae3fa8ceb6
5
right
eb17e33f2f5cadee3c74fb941d20e5b7162c8357ed519bf251859b425f77bffe
6
right
9cd04c901322f010a3f4b765f8334a04feb06990354fccd9484e7e135228e743
7
right
4c56aa4f1d1039c6ad4821c5c72376f7d1ccb9ab4f942fb7d343352d40712b8c
8
left
9a677d21c2cd9160c97a508996b4307c85b3aa9b95597b3eca8c62f864ebab76
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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