VERIFIED · SR-PICK-V1 · SATURDAY RACING · VERIFIED · SR-PICK-V1 ·
SR
AUTHENTICATED
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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 Limerick Leader
Race Newton Abbot · 13 July 2026 · 16:12
Product Horses to Watch (Sly Man)
Advised odds 11/4
Confidence High (raw 19)
Prompt version htw_v2_2026-07-06
Predicted at 2026-07-13T09:50:46.196242+01:00
Cryptographic Seal
Leaf hash
4417d43dda0490bbf6ad2c6e25669f61edce5499a7b582feb1d8133cc855939e
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":"2026-07-13T08:50:46Z","product":"horses_to_watch","product_lane":"","race":{"course":"Newton Abbot","external_id":"rac_11998727","internal_id":2803,"race_date":"2026-07-13","race_time":"16:12"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/4","confidence_final":"High","confidence_raw":"19","horse":"Limerick Leader","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
435f104c2a5e8a35d0cfd42c388741734f5d2e65692937febf7c56f5fcb263a2
2
right
b6257c03145407b8fbe9a1d09b22aecb4fb9c2cfe7bcbeabb6a0438c8c95ab37
3
right
d0b52f948996cbc7598dde5f2b9598b3efb5ecf75ff45b3b9d7a144776418cae
4
left
2c20bab8c4d2f59bfeebfd7b9adbd1451c652987e186d72ad327241fa4624670
5
left
7e5d48260eac8859aa4b88d752f5a6002d2d175dbddd9918845aaccd76aa4c81
6
left
f711bae12213bc1541e7e9261b3cfba05f29b86200f13fa0a0a0591106c845f9
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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