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 Vishaya
Race Killarney · 13 July 2026 · 18:30
Product Pick Winner (Mr Fox)
Advised odds 5/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-13T09:36:28.297402+01:00
Cryptographic Seal
Leaf hash
aebb47c6d0738e67cce821ab4b270f290e017e1a2ee88ecb3796bc45060e03a0
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":"2026-07-13T08:36:28Z","product":"pick_winner","product_lane":"","race":{"course":"Killarney","external_id":"rac_13000000104","internal_id":2816,"race_date":"2026-07-13","race_time":"18:30"},"schema":"sr-pick-v1","selection":{"advised_odds":"5/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Vishaya","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
ae9efec7e0cea18829cd6d6dbb42138b87149635d587e006542f725bbd605d17
2
right
58ad66875aceac672e22ccbfb37ae216ae60a2ecd2415e3cd3c92d5c7bedd48a
3
left
dc4349f2c89fa621521d4e8110b10d1637a4fdd824a2cfc61e5eda0bb9d07948
4
left
482fe0df5cb19d96611cc9ee51520d2ef088a00f3e06c4a3f0ee462f98d71ef8
5
left
144959ae456bbc727f1991fa893d2e1aef3deb58747954bbd3b01a9d5607bb29
6
left
a0db52a97d82a2741b38fc0eeb784af6793ea6882d82b807019bad2067115cb4
7
left
8ecad2493bca745bc0527c62a707de924168e44ffe66dc178ff870ba82aa045e
8
left
9a677d21c2cd9160c97a508996b4307c85b3aa9b95597b3eca8c62f864ebab76
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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