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 White Ladder
Race Ayr · 13 July 2026 · 15:00
Product Pick Winner (Mr Fox)
Advised odds 15/8
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-13T09:31:57.532909+01:00
Cryptographic Seal
Leaf hash
3567c237257f9197b3c02e6a050a5ae795d7528183005f26c72339db3f5c4bc3
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":"2026-07-13T08:31:57Z","product":"pick_winner","product_lane":"","race":{"course":"Ayr","external_id":"rac_11999702","internal_id":2787,"race_date":"2026-07-13","race_time":"15:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"15/8","confidence_final":"Medium","confidence_raw":"Medium","horse":"White Ladder","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
3605b07aa50a00e5ca60549a0bc58743bdc2681c7a3ca41e0189e90a1e23c924
2
right
1b4dfd5b06551fe119a6661c0055b043711cce271b84d7f732a078a8170c70b5
3
left
12ded940e6879158d8538a6234e84535fa93894403829b2df8d1a9a4bd06b871
4
left
09e4313c4ad55fde0ae47ce7c361ae75785fcb43d89e7cf960bd29598e46ff91
5
left
ec62d24954c0787b59b28928de9f40f093dc023decab6c0c787f2afd9c9fe728
6
right
7b82e1439f3e2ced375831c6c20f3fbb9f5a25088a3ad284db7ae38222b4fb9a
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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