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 Eighth Immortal
Race Chester · 10 July 2026 · 17:15
Product Pick Winner (Mr Fox)
Advised odds 11/8
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-10T09:26:07.013837+01:00
Cryptographic Seal
Leaf hash
3ec849e9954f894f4aaf53e2791e60c099a7101d34900c65dc8dfa316d1ce6ac
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":"2026-07-10T08:26:07Z","product":"pick_winner","product_lane":"","race":{"course":"Chester","external_id":"rac_11991161","internal_id":2657,"race_date":"2026-07-10","race_time":"17:15"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/8","confidence_final":"Medium","confidence_raw":"Medium","horse":"Eighth Immortal","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
3f59904e33c093e03e5edcfefe77cf89a37a71a27b6b517e59aa330b5656694d
2
right
8f15a8766b8dc027db9042d593c7559b3e0f66b9a8c9139b18718406553828a7
3
right
416494643f4518378bee6ad786cb2e4c0c75df7d44a3a4878a5d62ea8ee810f7
4
right
89dd3e25eed20ae12b6d63bc000326f4de0482b44380735ef7afaf20a5f088f0
5
left
7e5d48260eac8859aa4b88d752f5a6002d2d175dbddd9918845aaccd76aa4c81
6
left
f711bae12213bc1541e7e9261b3cfba05f29b86200f13fa0a0a0591106c845f9
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
Print / save this certificate