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 Diamont Katie
Race Catterick · 22 June 2026 · 16:00
Product Horses to Watch (Sly Man)
Advised odds 11/4
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.028649+01:00
Cryptographic Seal
Leaf hash
0c86f36fd3751ca736db4ada0f20a24c33cd16eede1a9065e0915825f23cab4a
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":"Catterick","external_id":"rac_11976289","internal_id":1961,"race_date":"2026-06-22","race_time":"16:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/4","confidence_final":"Medium","confidence_raw":"","horse":"Diamont Katie","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
0c8e21a5195dd03b80756f5d8fa3cfe53fb6e5bcbcc476932e59ae0564024ef9
2
right
bed018fd57e251c4ee50d66294dc45275a7029624aed6a89d102072cb3fe0c9e
3
left
f74f082e8ae25278041838e8c8f341094670f4aca0d8fe75bd6f369cc7eef9c6
4
right
33cef19e7b23cfa5e4c62a7bde0aba90ed9fb27783b52f31f79c56e0c441c3fb
5
right
8f4a0fd246d462fe2734244e69f67fde160b71cf86c07701b68e4e2ede4983a5
6
left
28a79af419252db0d5355ceb206307eccea1dfa0bc74e1b70403c4125df54885
7
right
a1446b8f053c3881b7e667ad2875514c1369218939a0da4c16d065175c0bd80d
8
right
7f26ee208367c64ad8017566de1de4e6ffc26d447963c5f0ab2e3225cec0656b
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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