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 Silent City
Race Windsor · 13 July 2026 · 20:20
Product Pick Winner (Mr Fox)
Advised odds 10/11
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-13T09:39:12.965079+01:00
Cryptographic Seal
Leaf hash
3bf7a9539e69d139945997412d5600854b21b220a362328229855f87c96de531
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":"2026-07-13T08:39:12Z","product":"pick_winner","product_lane":"","race":{"course":"Windsor","external_id":"rac_11999754","internal_id":2812,"race_date":"2026-07-13","race_time":"20:20"},"schema":"sr-pick-v1","selection":{"advised_odds":"10/11","confidence_final":"Medium","confidence_raw":"Medium","horse":"Silent 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
right
3c521e2a13f9c2b4a4f2419fbf5d9df0e31b3312e7336f8d1636183284761b77
2
right
181e9dd758a41967d6caf923e60ea9fe5c4958a9044b49972d4f655a8eb79b37
3
right
c6c9de8f6bf39ce43913f5f3db6c05ba43afac80438d3b11ef0faf354033d7f4
4
left
870654b00f64caaa6513573798de4a344431cca7efc0154181d7c424fe10a088
5
right
e7b21ecf251b2a0abf7ba5f104efc2c3e8b3962d1a53b22acb2191b8b4f96554
6
left
f711bae12213bc1541e7e9261b3cfba05f29b86200f13fa0a0a0591106c845f9
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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