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 Allegrino
Race Salisbury · 14 June 2026 · 14:14
Product Horses to Watch (Sly Man)
Advised odds 6/4
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:14.553656+01:00
Cryptographic Seal
Leaf hash
eb6434942fe70546be4f541cc9b31f19fb01be08f848bc1d126c4346f15232c5
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":"Salisbury","external_id":"rac_11963211","internal_id":1647,"race_date":"2026-06-14","race_time":"14:14"},"schema":"sr-pick-v1","selection":{"advised_odds":"6/4","confidence_final":"Medium","confidence_raw":"","horse":"Allegrino","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
ec3e29938c48873e80972810e3b27ec7fcff9bba97955e0ef50eadd39663528a
2
right
e62dae944839f627e7f920b5fcafe057407057382afaabb249bf902e568c790c
3
left
69aa57a98329ce1c21dcdebe4d203b48dbb712d4369bf33892f1e4f8e4ac9f37
4
right
297c7fc5fb581fc57c84fd9b1464850c3883e7c3a3881b01db86243ff520186d
5
left
793eb2bba37ab7e80c3cc1614e66a33db3e4b217a5e2f3921f51ff8ff177fdbb
6
right
da3d768220597c0636847e1f28e766d918af491f20ffa568c070cdc81dea7c6a
7
right
7b91ffdbc0775ceb1efdc9c047cbf134a340783b2dc1627173e9cef778ec1cf8
8
left
5029b4611810c87e9e04fd3af160ed33fa21436626c66ccbd825c959f40bd90c
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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