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 Bahia Bonita
Race Newbury · 9 July 2026 · 17:13
Product Pick Winner (Mr Fox)
Advised odds 12/1
Confidence Speculative
Prompt version v3_b557cbd4
Predicted at 2026-07-08T18:59:55.023681+01:00
Cryptographic Seal
Leaf hash
5920e812c6e249ea77949f723eef8dedb77d876f3acf37d137fa993a8a170e72
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":"2026-07-08T17:59:55Z","product":"pick_winner","product_lane":"","race":{"course":"Newbury","external_id":"rac_11990680","internal_id":2629,"race_date":"2026-07-09","race_time":"17:13"},"schema":"sr-pick-v1","selection":{"advised_odds":"12/1","confidence_final":"Speculative","confidence_raw":"Speculative","horse":"Bahia Bonita","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
591a3460950f4eeb357e059ea57bae442d782c8a2c355a5dfba74cf6492bcbb0
2
right
0b740efb2739ea8c35ff3e64325f0158392960bc8b4ce4cd87a9316f8dc4ee8f
3
right
26178c23d24a7d1ddaed1bdf8a8cc2797241726693996b26faeb34d11aa227e1
4
left
de42128ab75b05c1180b53296e109b29d46a6c35f5c4a2161f5ae3eaa7ed546c
5
left
9c35144997c1f95839a65dfc94dc3a1139864f7417424a4c114d696b14c74df8
6
left
fc52f76fefc833e1107b03796f834d4ba1336aeb1778053c068d9688bda96b1d
7
left
abd1f2af8516869713aed81c9f26f27b73cfb533f542009e428008b662810a09
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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