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 Sunray Shadow
Race Uttoxeter · 7 July 2026 · 15:00
Product Horses to Watch (Sly Man)
Advised odds 7/2
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T08:26:31.003898+01:00
Cryptographic Seal
Leaf hash
c972b14bb61083376f65bd69f46082a0ebf09fdbf1123d6f2b0e78a17285fe15
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":"Uttoxeter","external_id":"rac_11987612","internal_id":2558,"race_date":"2026-07-07","race_time":"15:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"7/2","confidence_final":"Medium","confidence_raw":"","horse":"Sunray Shadow","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
c96eae894f7fd674178db6c016c9d5e36b64204ef35c21a45756d94329524fb2
2
left
33b7cf45b651f25ad3ad3f44afd57a122de2fa0c1247bd223b8a5ecc1497c77a
3
left
dfbc172ea144d3e1fee0006e68dabdbfe468a3027c4a51d58012fc843f6d0bfd
4
right
3fcba72da54d2e0c4e2a299d4d179c0d6e529e9699977ed6554f3035b0c3b1d1
5
left
1f43b9fe857f8bff074e76ca1389e5156ba5338ce2270feac8af71847ba29692
6
left
acddd189171186c8bc352e9e4ff896c2fac95bec250bde9a776ff5b7544bdba3
7
right
7b966ba7fb6479ee18f2a8f9b8925b3c3366b9fe81cdbeb08938a02c83890686
8
right
f384b0629d9042022b8062f38497000b02dafa843e81b7fba3c37144f3b49f92
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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