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 Evanesco
Race Newmarket · 10 July 2026 · 13:50
Product Pick Winner (Mr Fox)
Advised odds 9/2
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-10T09:20:14.722426+01:00
Cryptographic Seal
Leaf hash
8499cf6ea148f2fc0f51c69d6b6a5c103318e09cc2e32b5eda041ea8360f113a
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":"2026-07-10T08:20:14Z","product":"pick_winner","product_lane":"","race":{"course":"Newmarket","external_id":"rac_11978174","internal_id":2664,"race_date":"2026-07-10","race_time":"13:50"},"schema":"sr-pick-v1","selection":{"advised_odds":"9/2","confidence_final":"Medium","confidence_raw":"Medium","horse":"Evanesco","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
848273ee90f347077c0fcde7965227ae86f6e94e32720ecf739d044763f3b160
2
right
61da1274b213f5c8ee833d1604b0ba14c599a68cbd8d6fd6e4e8b1c4b0f4d6fa
3
left
abdf81174dc29119ca5ca2c9c0d1164b5ec870edf090293c9240640c47d28b98
4
left
6f5460a0013489ca7809b466d75c3d221bd3438ad6fd253b870e53816a94e12d
5
left
a28a6c373bbfec5b760df86c1f341027d939b8fc52996d217566314b9c0345d5
6
left
55948f4e8e29440793f46045b1f25282558c5bbca3cffc7780c2a3c54ca6d6ec
7
left
b20426c9805bd5f17d7d0c3747a91f6539d868cc80d6de1f3197b66c180d007b
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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