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 Way Maker
Race Market Rasen · 5 July 2026 · 14:20
Product Horses to Watch (Sly Man)
Advised odds evn
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.876122+01:00
Cryptographic Seal
Leaf hash
f41d44073f16d4c79db6b7aaab8813efa1fedbc6dd3420bd0953c11ae115c1ac
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":"2026-07-13T21:10:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-07T08:56:15Z","product":"horses_to_watch","product_lane":"","race":{"course":"Market Rasen","external_id":"rac_11987534","internal_id":2493,"race_date":"2026-07-05","race_time":"14:20"},"schema":"sr-pick-v1","selection":{"advised_odds":"evn","confidence_final":"Medium","confidence_raw":"","horse":"Way Maker","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
f4710c4e0936027aa3e771cafce9a125871012d470b96cf024894964d1003589
2
right
3f796e8a0f62129d28ed5b392c087f0474b3de458fc7aef679a25ffbcf97dd06
3
left
e5fc1fb8a865aff656e568f3b46fe831bf387d6e9301561d2f47c3598f1dbb07
4
right
8ca82133a5197a549f9601dba803765dd8378774026008738d758695d87d30bc
5
right
6dc7f9e4c9ff65a1008a569061af1cefad90f7d287f2db80fdfeefb42ac85f48
6
left
0f9b71a99f95ac0b56f346d24cfbb5b52b60e187c7de3d78c741e3c20926b373
7
right
7b91ffdbc0775ceb1efdc9c047cbf134a340783b2dc1627173e9cef778ec1cf8
8
left
5029b4611810c87e9e04fd3af160ed33fa21436626c66ccbd825c959f40bd90c
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
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