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 Lucky Camino
Race Hamilton · 11 July 2026 · 19:50
Product Pick Winner (Mr Fox)
Advised odds 13/8
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-11T07:55:13.248602+01:00
Cryptographic Seal
Leaf hash
34ac07669cd3ee7e4c029bd6f198371e3000f92678004ee8968aaa26d3f2d5c6
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":"2026-07-11T06:55:13Z","product":"pick_winner","product_lane":"","race":{"course":"Hamilton","external_id":"rac_11991460","internal_id":2719,"race_date":"2026-07-11","race_time":"19:50"},"schema":"sr-pick-v1","selection":{"advised_odds":"13/8","confidence_final":"Medium","confidence_raw":"Medium","horse":"Lucky Camino","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
34a1b9b018b633decbe062eb31e6b4ebbfa716310220a17fc03c17044dcb577d
2
right
c423ad580fbd5f4b59b74d37e8f96e16e33b21b72df389c416b5c4b2c5c167c5
3
right
707857df1f0423478461c44fbf04dd27e75cd022f7dc160fef45633ad4b3b2f8
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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