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 Perisher
Race Ascot · 20 June 2026 · 17:35
Product Horses to Watch (Sly Man)
Advised odds 17/2
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:14.905506+01:00
Cryptographic Seal
Leaf hash
1760fffbeb60b5ce89b507c2bd752d1d522584cf3d3e0200a37eebee04202fa9
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":"2026-07-13T21:10:28Z","issuer":"saturday-racing.com","predicted_at":"2026-07-07T08:56:14Z","product":"horses_to_watch","product_lane":"","race":{"course":"Ascot","external_id":"rac_11974781","internal_id":1883,"race_date":"2026-06-20","race_time":"17:35"},"schema":"sr-pick-v1","selection":{"advised_odds":"17/2","confidence_final":"Medium","confidence_raw":"","horse":"Perisher","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
17880cb38767b93c351f0d63c886e8e6765cc8ec89c0661250b3a0ac51fdfca0
2
right
c4a280bd1b9e4ac812040cb3260f0890b35f8086e0138259cda75bbce1afbf08
3
right
9deb40b3eef7b4f293302090431a09a238b0c04b379a5b3180cdc806c9079af8
4
left
9de556c43259293ce8f38f731abb5e2cc22eabf60da1de914e06bd9f324a5ecf
5
right
b40f2a8ff59227eaeeb1227f3171935593453aafb753d3e16182e5c2f0bcab28
6
right
9bf4f078d9681658c6a8e3b6821b776c17a3347c9178f3ba02ba1f2792cfe5c4
7
left
0af567e55c1ca3698f0d247913af3961bd1e207eb3c7b8dd318659719ff7e32e
8
right
7f26ee208367c64ad8017566de1de4e6ffc26d447963c5f0ab2e3225cec0656b
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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