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 Scots Poet
Race Perth · 12 July 2026 · 17:01
Product Pick Winner (Mr Fox)
Advised odds 11/4
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-12T09:31:43.255283+01:00
Cryptographic Seal
Leaf hash
6652acaadd8127ac584ad0a6c19f6ccee8c597393a1edfbe015b503f5df02d1c
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":"2026-07-12T08:31:43Z","product":"pick_winner","product_lane":"","race":{"course":"Perth","external_id":"rac_11987859","internal_id":2762,"race_date":"2026-07-12","race_time":"17:01"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/4","confidence_final":"Medium","confidence_raw":"Medium","horse":"Scots Poet","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
667b2212839effb371c61e867d61bc8a90f77f67dc547d8f046905455d61efe4
2
left
db7a3cd7fbe2103c22499b4f1384c8dea31cc6a1bf001a80fc2b621032ab4c65
3
right
c49cfef2362febe64b5179fe26c1fda0682cccda4bcc86e9af3bd3bfc6b2e476
4
right
ea105fe4592ceec53f0d382aeb6b1891be1217905259d9adef8c1cb9383bc5ed
5
right
2a8e4c62bd3660bc06e50dba5a98fbb2b0eca3a11ede89b08ddb5647c2c2f034
6
left
a328e066f90b70a2e880de9d27268241c8a61a11737844302019638d7064d37b
7
right
2cc9e7f1f0b7c3ec0e9bb3fdcf68995f9a6e05667eb83c69c735851531edb0da
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
Print / save this certificate