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 Barry's Boy
Race Wolverhampton (AW) · 6 July 2026 · 21:00
Product Pick Winner (Mr Fox)
Advised odds 3/1
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-06T08:04:15.371719+01:00
Cryptographic Seal
Leaf hash
335e2fc50758bdad065781cf8a67c8b4730a250ab1d85061b0e1df8ee29896ec
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":"2026-07-13T21:10:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-06T07:04:15Z","product":"pick_winner","product_lane":"","race":{"course":"Wolverhampton (AW)","external_id":"rac_11992032","internal_id":2533,"race_date":"2026-07-06","race_time":"21:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"3/1","confidence_final":"Medium","confidence_raw":"Medium","horse":"Barry's Boy","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
338495681d7bd010a47121eb431c9c2003ee13d6fb6949a1f2fa4ac77a3c31be
2
left
8c4fa4cb11aec426f7226bf1160029a5fd7751119441e15a35e15a25d3ea85ff
3
right
7ba6a38ed9e35e8d084dd27dd5c03124d1115d8463814cada577813229dc8709
4
right
8cfde3b5ad5da2eeb44803ac5baba53b99f6bb037429d739a4a7aecaf7616f39
5
left
ec62d24954c0787b59b28928de9f40f093dc023decab6c0c787f2afd9c9fe728
6
right
7b82e1439f3e2ced375831c6c20f3fbb9f5a25088a3ad284db7ae38222b4fb9a
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
Print / save this certificate