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 Night Storm
Race Redcar · 20 June 2026 · 16:00
Product Horses to Watch (Sly Man)
Advised odds 4/1
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:14.931710+01:00
Cryptographic Seal
Leaf hash
78c11df59cd08d9c2afefd3a3e147021e702af971ac423e903dd2763d96de338
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":"Redcar","external_id":"rac_11975756","internal_id":1922,"race_date":"2026-06-20","race_time":"16:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/1","confidence_final":"Medium","confidence_raw":"","horse":"Night Storm","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
78053c4c97796c042cede85b2053f47850596c5120d61525e614acfc5e816c00
2
right
2a82f3e3b0fcac4d4e2af7d379b1779ccf19835bee8041ce6eb1006962e0cb54
3
right
7bf79b9ca03a4da99f269eb78af414f7890644f60fd5a504d3746c03b1b169a5
4
right
6982391c6ea8a7080bf40deb9d4540e60c28a5ca585e70a2936741ed443c778a
5
right
73f197e6afca84fa5558bab48b9319649e68f2939fd6a9c1d3a3cddb7fe8e39b
6
left
55948f4e8e29440793f46045b1f25282558c5bbca3cffc7780c2a3c54ca6d6ec
7
left
b20426c9805bd5f17d7d0c3747a91f6539d868cc80d6de1f3197b66c180d007b
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
Print / save this certificate