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 Regal Envoy
Race Windsor · 29 June 2026 · 19:00
Product Horses to Watch (Sly Man)
Advised odds 7/2
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.465250+01:00
Cryptographic Seal
Leaf hash
1e28fc888c9bea0c9490f472c666db19c5144aac884cd7a44adef136fbd3ec26
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":"Windsor","external_id":"rac_11988054","internal_id":2246,"race_date":"2026-06-29","race_time":"19:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"7/2","confidence_final":"Medium","confidence_raw":"","horse":"Regal Envoy","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
1f64561a5e2ef7005c357923b2007bf1da5c4185e8b78b11b2db7b5498dba11f
2
right
c0c0dc6612a934717be31cb4dfe02b34f45f4150b125c45e26e3b95ee847efdb
3
right
98fa41f795d04d4ec37103346c4f2680e82fc2e41b2b950dc6613f228c75f58f
4
right
750aaca982d812b8b3efcbb6f918c43493afb023f6a7b1babcf5146d4baaa7d0
5
right
efb4763ba2262df820e6316697d4b85fec3f6c4ca1f152c85cfcd1bb91db0efb
6
left
d2f5951c321258f1da44d8e3609710b4c9c90fac4d41e3ca7536c70ae340789e
7
left
0af567e55c1ca3698f0d247913af3961bd1e207eb3c7b8dd318659719ff7e32e
8
right
7f26ee208367c64ad8017566de1de4e6ffc26d447963c5f0ab2e3225cec0656b
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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