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 Miss Kassiopi
Race Newton Abbot · 3 July 2026 · 15:20
Product Horses to Watch (Sly Man)
Advised odds 1/2
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.754757+01:00
Cryptographic Seal
Leaf hash
9ea95aeaefe92efb48c982d28808b6e0c8cb044e5556e2ae8567d88c2a96ce23
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":"2026-07-07T08:56:15Z","product":"horses_to_watch","product_lane":"","race":{"course":"Newton Abbot","external_id":"rac_11987495","internal_id":2417,"race_date":"2026-07-03","race_time":"15:20"},"schema":"sr-pick-v1","selection":{"advised_odds":"1/2","confidence_final":"Medium","confidence_raw":"","horse":"Miss Kassiopi","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
9f0e88ba4ed6f5380c8bead2425c6ac1c5df2432b772d83196c2c6f3fdb7ae76
2
left
c90c78136ff6cb16b5f330d79b4956c334199d38aa5f1d1426a7f1441e094c6d
3
left
d76524049cab9b6144a0db3090c81f7d680043d7a8ee3613af2a7b76dcc57d78
4
left
29b9329678105f7b94799666df64bff979212f7378d609f460469c33636d7925
5
right
32969f22a66e840a786dccb6b5ee6e302709d53b2206fb9aebccabc2478b63f7
6
right
122ad8c3830c8717ffb38cb520c4f4916841ee7438458e522353d27690ee23f0
7
left
8ecad2493bca745bc0527c62a707de924168e44ffe66dc178ff870ba82aa045e
8
left
9a677d21c2cd9160c97a508996b4307c85b3aa9b95597b3eca8c62f864ebab76
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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