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 Tabletalk
Race York · 11 July 2026 · 16:55
Product Pick Winner (Mr Fox)
Advised odds 7/4
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-11T07:49:23.153963+01:00
Cryptographic Seal
Leaf hash
ff7bbc67935629864ce7cb8c2079de45e6575f9dac9509270b4ad8aa6bd48bd9
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":"2026-07-11T06:49:23Z","product":"pick_winner","product_lane":"","race":{"course":"York","external_id":"rac_11991356","internal_id":2741,"race_date":"2026-07-11","race_time":"16:55"},"schema":"sr-pick-v1","selection":{"advised_odds":"7/4","confidence_final":"Medium","confidence_raw":"Medium","horse":"Tabletalk","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
ff7eb636c8d50d94be35d68a22b732f8969347096cc44ff1ff4746c41e16159b
2
left
00203a297f8ca3b03cfc56349487bfa09cbf8fa57b734dcef6c61d7f7801b1bf
3
right
e4587fa10cf32f8e48c222eb0e6f41a669af3818a7028616b7fd0b79d43de88f
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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