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 Moostar
Race Wolverhampton (AW) · 6 July 2026 · 19:30
Product Pick Winner (Mr Fox)
Advised odds 3/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-06T08:02:18.814243+01:00
Cryptographic Seal
Leaf hash
db9f89afb27963b3df2bec9654cb7560f0bb917488349bacb0894782662da8c7
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":"2026-07-06T07:02:18Z","product":"pick_winner","product_lane":"","race":{"course":"Wolverhampton (AW)","external_id":"rac_11992019","internal_id":2530,"race_date":"2026-07-06","race_time":"19:30"},"schema":"sr-pick-v1","selection":{"advised_odds":"3/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Moostar","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
dbaea8f5ce89d9fe6f66f3cb8c52f72f3becb3852ae3605565c347a4fe25bb28
2
right
e6a7d3e4b9c5a8df80ec5a2f2edeccea91e942c788212952aa17b52a59bb019d
3
right
e7363e9a083252073a7c932f16c78200d1cf1e5df8b24bea2cfdca6a6690d850
4
left
67a1d58aa018abf0b1dd7931c03ef83735b922195dc1a1a4a7988adf7b3664f0
5
right
23e4c3a8f31db10095f7234922ef1e6f9c299921f811af33c6f38876c16d12fa
6
left
b495d7542cc68c4b7514051aff9c40ee645b401fdf6a48deafd015554c949f6a
7
left
18098d0ad2005f6c8a767a2aceec92cb16c50e0350a0aeb358818e8c739d9967
8
right
f384b0629d9042022b8062f38497000b02dafa843e81b7fba3c37144f3b49f92
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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