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 Atlantic City
Race Perth · 12 July 2026 · 15:16
Product Horses to Watch (Sly Man)
Advised odds 13/8
Confidence High (raw 27)
Prompt version htw_v2_2026-07-06
Predicted at 2026-07-12T09:38:46.303515+01:00
Cryptographic Seal
Leaf hash
675ea04618ff9c78f4be2e3291e1c7f7f0db5be8d3ff1fe4a412543b0779e46b
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":"story_score","prompt_version":"htw_v2_2026-07-06"},"committed_at":"2026-07-13T21:10:26Z","issuer":"saturday-racing.com","predicted_at":"2026-07-12T08:38:46Z","product":"horses_to_watch","product_lane":"","race":{"course":"Perth","external_id":"rac_11987820","internal_id":2759,"race_date":"2026-07-12","race_time":"15:16"},"schema":"sr-pick-v1","selection":{"advised_odds":"13/8","confidence_final":"High","confidence_raw":"27","horse":"Atlantic City","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
66b805c4cd63b2a203d20151f9de4a1bed7a1cfdc1dbbb37b883f3f796aff934
2
left
61a64d24cc22143721c584f5410103f3cfc05feef5698e988f3588feedf9a2c1
3
left
45feeccbfb224f2a66a9025e4e198772ce33ae601feb050437304c5f04ef0a85
4
right
ea105fe4592ceec53f0d382aeb6b1891be1217905259d9adef8c1cb9383bc5ed
5
right
2a8e4c62bd3660bc06e50dba5a98fbb2b0eca3a11ede89b08ddb5647c2c2f034
6
left
a328e066f90b70a2e880de9d27268241c8a61a11737844302019638d7064d37b
7
right
2cc9e7f1f0b7c3ec0e9bb3fdcf68995f9a6e05667eb83c69c735851531edb0da
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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