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 Rapper's Delight
Race Southwell (AW) · 5 July 2026 · 16:15
Product Horses to Watch (Sly Man)
Advised odds 9/2
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.900994+01:00
Cryptographic Seal
Leaf hash
d6138719d0cb4d7130b20359aaf2410ddc8c7be2fe723140e128840a3939a03a
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":"2026-07-07T08:56:15Z","product":"horses_to_watch","product_lane":"","race":{"course":"Southwell (AW)","external_id":"rac_11984947","internal_id":2503,"race_date":"2026-07-05","race_time":"16:15"},"schema":"sr-pick-v1","selection":{"advised_odds":"9/2","confidence_final":"Medium","confidence_raw":"","horse":"Rapper's Delight","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
d5be3b120081c5e175a7f799359254c22ba6df7261cfa098ca4be786923de738
2
left
784d9fd2cdb5e5e588f2cce7682c9420e9b857f1f79d9921a96028d3618b06d3
3
right
6fa9160c099ef7ad810fc216484fc8c11d832d2318e575a286b7e0126932714b
4
left
998d47dceab3df10fa0099328a45be6e921d1aceb6b2cda42de4c71b6752c117
5
left
ae4e640877ec7e1ed0aa1ecb43c4375691164ecfe38c620f45929139e686dc8f
6
right
8d365ed1fcd50ce4692074b8d288bcbca840a0024697303b2be824fc4a5251f3
7
left
18098d0ad2005f6c8a767a2aceec92cb16c50e0350a0aeb358818e8c739d9967
8
right
f384b0629d9042022b8062f38497000b02dafa843e81b7fba3c37144f3b49f92
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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