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 Causeway
Race Ascot · 19 June 2026 · 17:35
Product Horses to Watch (Sly Man)
Advised odds 11/8
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:14.845131+01:00
Cryptographic Seal
Leaf hash
46c719971757cface6109e782c33988b93fbd787eec78c41f27acf76824081ec
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":"Ascot","external_id":"rac_11974664","internal_id":1827,"race_date":"2026-06-19","race_time":"17:35"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/8","confidence_final":"Medium","confidence_raw":"","horse":"Causeway","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
474da4610f8fd0f81dfae7a45417302bb463957c8c9379dc54ee55b0ba59e89b
2
left
1a0db8e83badec74839d79b0802806a8b4210fa671528b7752de3e27b25b1f46
3
right
e6a8fd43dea4ff72564b170d5e6ee29d5bc1663a4e4454f995665a3407c798e6
4
right
e2b7f806ad9a6eba5df0c3eea8f068305d20f2fc50dc409c583ba80dca42441f
5
right
1a7c6b029f58cae1bf8086ed6fa83e42a03e521eed5dfafe556fe3f16191d19b
6
right
6eaf7a3b4dbf7de787d708e4aeca0643d7190dfd48ea1d758c6741d5876fc46d
7
left
abd1f2af8516869713aed81c9f26f27b73cfb533f542009e428008b662810a09
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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