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 Gstaad
Race Ascot · 16 June 2026 · 16:20
Product Horses to Watch (Sly Man)
Advised odds 11/4
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:14.651661+01:00
Cryptographic Seal
Leaf hash
fbe4accfe333be6fd019e0a4becf2b2cb997c8e5669f85173ae37d7db24b9199
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_11931504","internal_id":1708,"race_date":"2026-06-16","race_time":"16:20"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/4","confidence_final":"Medium","confidence_raw":"","horse":"Gstaad","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
fd20be39c2bd8089bb6bd796c80cec2767693fd7803fd8aae8eac9829fa9860c
2
right
1a56142d6453a1519f43884df512a4337b863c45a66c17125a98d5092ac01ddb
3
left
6e9ba51e5f027c1c2d0e52d9478e417c7ac9b0e79d6daabc4046e4fe5070d0be
4
left
a201eefea45560a520fbea3a0f12eab7eae3cfba67b75ab8fc013f2ad60eb6db
5
left
23ff48395ca186d38a777118fb73cb9068fcbfc92f8171b4f9b24d5522494c66
6
left
0f9b71a99f95ac0b56f346d24cfbb5b52b60e187c7de3d78c741e3c20926b373
7
right
7b91ffdbc0775ceb1efdc9c047cbf134a340783b2dc1627173e9cef778ec1cf8
8
left
5029b4611810c87e9e04fd3af160ed33fa21436626c66ccbd825c959f40bd90c
9
right
559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10
left
f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55
Print / save this certificate