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 Naval Light
Race Catterick · 15 July 2026 · 16:10
Product Horses to Watch (Sly Man)
Advised odds 3/1
Confidence High (raw 22)
Prompt version htw_v2_2026-07-06
Predicted at 2026-07-15T07:18:11.988974+01:00
Cryptographic Seal
Leaf hash
0e4da9016b78414c640ca9c80c30e7d269d9000864aa3eecb6df754cf5a76a99
Your browser
…
Batch
15 July 2026 · 60 leafleaves
· inspect batch →
Merkle root
e4408eaba1df1a5c38c539864028dfae01482f63ce7383bbf8cabee5597ad9af
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":"2026-07-15T06:18:11Z","issuer":"saturday-racing.com","predicted_at":"2026-07-15T06:18:11Z","product":"horses_to_watch","product_lane":"","race":{"course":"Catterick","external_id":"rac_13000000637","internal_id":2901,"race_date":"2026-07-15","race_time":"16:10"},"schema":"sr-pick-v1","selection":{"advised_odds":"3/1","confidence_final":"High","confidence_raw":"22","horse":"Naval Light","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
1ab37ab85562c1d358e2a5e4c4138a8954d8b2fc7967719cd3a0e068265ebc22
2
right
ff64b233a5bec3c211aebf90c5d33413ba868a49d9d8c4da48097812b7c9daf3
3
right
8b98ccd9a1580e999ac706e13a1cf41e8d47bbdd6608d015beea0736036b747c
4
right
c9e2aea7cb5c67b623ad705c87f2152e7980402ebe9bcfbcb044a639231f8fcd
5
right
ecc115ab520d84fdc82f866f4bc64f7386a1ee51628574c7ee8665a71024bd8a
6
right
ddd2125ac2c0a6a67ecd0d29863265e6b24768d6958939fe937aafeb1b856e90
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