VERIFIED · SR-PICK-V1 · SATURDAY RACING · VERIFIED · SR-PICK-V1 ·
SR
AUTHENTICATED
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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 Trojan Soldier
Race Pontefract · 21 June 2026 · 15:35
Product Horses to Watch (Sly Man)
Advised odds 6/4
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:14.981654+01:00
Cryptographic Seal
Leaf hash
7ebbe7f3a50fc9fc806bbdbf87b7cd1612b2d36c48ff154e5c42f97fe130c2c8
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":"story_score","prompt_version":"htw_backfill_v1"},"committed_at":"2026-07-13T21:10:28Z","issuer":"saturday-racing.com","predicted_at":"2026-07-07T08:56:14Z","product":"horses_to_watch","product_lane":"","race":{"course":"Pontefract","external_id":"rac_11976055","internal_id":1949,"race_date":"2026-06-21","race_time":"15:35"},"schema":"sr-pick-v1","selection":{"advised_odds":"6/4","confidence_final":"Medium","confidence_raw":"","horse":"Trojan Soldier","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
7f0dc08c65fb61d97d5f5bd7551205c7ad63b0ccf4887d8d491605d04e606cb5
2
right
25116a80977e6676f923967456ec335a7c434d606dad50e00ac3e746ae0ad308
3
left
989d36022b0e8986234858bbb04f5bd717c01077521d0efc17176afc4b4cc4ee
4
left
6dd5ac9c081448c320152f5955e9eba2d4ba4ae676dde836a11dc4847bbca6f4
5
right
73f197e6afca84fa5558bab48b9319649e68f2939fd6a9c1d3a3cddb7fe8e39b
6
left
55948f4e8e29440793f46045b1f25282558c5bbca3cffc7780c2a3c54ca6d6ec
7
left
b20426c9805bd5f17d7d0c3747a91f6539d868cc80d6de1f3197b66c180d007b
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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