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 Lever Up
Race Beverley · 14 July 2026 · 15:48
Product Pick Winner (Mr Fox)
Advised odds 3/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-14T09:22:24.527595+01:00
Cryptographic Seal
Leaf hash
d9fd247e1e6611e05c876b99a9e20e9f94ab2d4c5ea96b2708a64e7471c848f9
Your browser
…
Batch
14 July 2026 · 40 leafleaves
· inspect batch →
Merkle root
072e707d9142102581b7395437488a0c34e70eca6717bd16f437ee6a3030212a
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":"llm","prompt_version":"v3_b557cbd4"},"committed_at":"2026-07-14T08:22:24Z","issuer":"saturday-racing.com","predicted_at":"2026-07-14T08:22:24Z","product":"pick_winner","product_lane":"","race":{"course":"Beverley","external_id":"rac_13000000208","internal_id":2824,"race_date":"2026-07-14","race_time":"15:48"},"schema":"sr-pick-v1","selection":{"advised_odds":"3/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Lever Up","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
e47ac2ea4a20aca3eef8e301e3f7547034f84dc8941ee107925bc2a9b6d6b98f
2
left
ffcddc1d8416834bc107dd8a1895ab03a270a4b89673efcfe8abb10ca74bfe99
3
right
afe98c435141617a3ff9da0a41566297adc7202abd94a87fd46c5fa484350baf
4
right
d32cd3a310dd8439551c37289e64ca03d46b8a207fd8eaa7b8ac2c81860a895d
5
right
72ee2de6c39840acb0528e55c9e99ddce199858fd5ab338ff7eea87a593ce728
6
left
abd12faeb52c427343562ce8e6bf60625ad79e5f896c6c45b4a2dd7167c50de3
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