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 Valedictory
Race Newmarket · 10 July 2026 · 15:00
Product Pick Winner (Mr Fox)
Advised odds 3/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-10T09:21:51.840724+01:00
Cryptographic Seal
Leaf hash
44e4fdad9db4cd2b442ceba813d6d3561d352bf99c728d3a28a6c8e86b50db69
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":"2026-07-10T08:21:51Z","product":"pick_winner","product_lane":"","race":{"course":"Newmarket","external_id":"rac_11978161","internal_id":2666,"race_date":"2026-07-10","race_time":"15:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"3/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Valedictory","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
457371db4500b00a2f030cd5171447cb5df5ec3632d57a4c52ca062539ea214f
2
right
343aa4ee809960bb032d8a5896ecfa86449ed50a3f57e94dec427599ec598660
3
left
dce9456fc1a97f3a1e1b9db97ba83a67e827974b634fe4576ab3de1fc31b6183
4
left
2c20bab8c4d2f59bfeebfd7b9adbd1451c652987e186d72ad327241fa4624670
5
left
7e5d48260eac8859aa4b88d752f5a6002d2d175dbddd9918845aaccd76aa4c81
6
left
f711bae12213bc1541e7e9261b3cfba05f29b86200f13fa0a0a0591106c845f9
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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