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 Rory Rocket
Race Brighton · 7 July 2026 · 20:50
Product Horses to Watch (Sly Man)
Advised odds 15/8
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T08:26:31.024924+01:00
Cryptographic Seal
Leaf hash
9c1d8eeeea9b72fa32f931f8b1155fc64c6f06dda1a0e678569adb76ab04f778
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_backfill_v1"},"committed_at":"2026-07-13T21:10:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-07T07:26:31Z","product":"horses_to_watch","product_lane":"","race":{"course":"Brighton","external_id":"rac_11990069","internal_id":2547,"race_date":"2026-07-07","race_time":"20:50"},"schema":"sr-pick-v1","selection":{"advised_odds":"15/8","confidence_final":"Medium","confidence_raw":"","horse":"Rory Rocket","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
9c339b9024b233fa43580a21e175d14fb0b11c7655c1b504f6bde15a73a1c857
2
right
acfa8356b0787c2d6ac3b85e46cd815cd2fff6edc4620c2b9cc71c779216a176
3
left
f71a72aff7c5881254578b4eeb8236868941a9289599bde08663104acbead57e
4
right
567d199b4d3883ccdf9007923583636056512020ed229fbd4f7a22d03ff3bde4
5
right
32969f22a66e840a786dccb6b5ee6e302709d53b2206fb9aebccabc2478b63f7
6
right
122ad8c3830c8717ffb38cb520c4f4916841ee7438458e522353d27690ee23f0
7
left
8ecad2493bca745bc0527c62a707de924168e44ffe66dc178ff870ba82aa045e
8
left
9a677d21c2cd9160c97a508996b4307c85b3aa9b95597b3eca8c62f864ebab76
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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