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 Jasper Glory
Race Newton Abbot · 13 July 2026 · 15:12
Product Horses to Watch (Sly Man)
Advised odds 10/11
Confidence High (raw 22)
Prompt version htw_v2_2026-07-06
Predicted at 2026-07-13T09:50:46.182078+01:00
Cryptographic Seal
Leaf hash
940e942feb9b763a9c95fb931c47b3c02d6e0279a781510b5140b9f006c0d812
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_11998753","internal_id":2801,"race_date":"2026-07-13","race_time":"15:12"},"schema":"sr-pick-v1","selection":{"advised_odds":"10/11","confidence_final":"High","confidence_raw":"22","horse":"Jasper Glory","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
94a2e1ab49c1db01f7bd155069ef27393a8c1c19d78d94ebaa662b5923777551
2
left
1c35aa184455aea2c765e2ad4d33ddf4024425d1eb2b6b4ce52c7e586f09e43a
3
right
0abeef4bf168ca335cc3d238c0665711aff8495620f63ab47a29af7b1049240d
4
right
5a048f78e22603bd447f1bb0a0cd4fc6a15466f4f3da16b67aa1766675181b70
5
left
ff396369426df07e2cc9d7219a4648a240b65996a5f7ad862260181ed3b5063a
6
left
de4c18b344759b795e65fd7d556764fb84fe70fe3ed694d8fbe24938047d102e
7
right
4c56aa4f1d1039c6ad4821c5c72376f7d1ccb9ab4f942fb7d343352d40712b8c
8
left
9a677d21c2cd9160c97a508996b4307c85b3aa9b95597b3eca8c62f864ebab76
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
Print / save this certificate