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 Maxxum
Race Cork · 10 July 2026 · 20:00
Product Pick Winner (Mr Fox)
Advised odds 7/2
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-10T09:31:37.640663+01:00
Cryptographic Seal
Leaf hash
11ecb146439b06e0b304718163f6bbfd6594dce188a0543a1094f4ab8b845552
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":"llm","prompt_version":"v3_b557cbd4"},"committed_at":"2026-07-13T21:10:26Z","issuer":"saturday-racing.com","predicted_at":"2026-07-10T08:31:37Z","product":"pick_winner","product_lane":"","race":{"course":"Cork","external_id":"rac_12017902","internal_id":2691,"race_date":"2026-07-10","race_time":"20:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"7/2","confidence_final":"Medium","confidence_raw":"Medium","horse":"Maxxum","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
left
1184d0deb2df4f54ca907e3dba81dae43d1d725168bee683af9d903807ee9648
2
right
af0310bef4bf2a34b55e53d37d7fe172066dfa888f9f28637025e827f008b64a
3
left
c5a668c46c8254ede202e526338da1b50f8908d6e4278a047cd7b3e80841f6ba
4
right
12c3af300e9dd791eca9a02537e08083269742378bf89d58f89ffcc41bd5e731
5
left
af140e05672da996cf69ef5641b0f8af72404e94121144b24b40577bc8311994
6
left
28a79af419252db0d5355ceb206307eccea1dfa0bc74e1b70403c4125df54885
7
right
a1446b8f053c3881b7e667ad2875514c1369218939a0da4c16d065175c0bd80d
8
right
7f26ee208367c64ad8017566de1de4e6ffc26d447963c5f0ab2e3225cec0656b
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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