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 White Storm
Race Doncaster · 14 June 2026 · 15:00
Product Horses to Watch (Sly Man)
Advised odds 5/1
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:14.578012+01:00
Cryptographic Seal
Leaf hash
2ebf716e46ea87d02c7b099fbfca1c941339d669bcd92b93337d77b1df4ca35a
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":"Doncaster","external_id":"rac_11963042","internal_id":1641,"race_date":"2026-06-14","race_time":"15:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"5/1","confidence_final":"Medium","confidence_raw":"","horse":"White Storm","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
2f4506d0186693b7b2be72e93a4358eca3845a2125ccd62c58bf700172eef19d
2
left
6e9876a89e27a39672c29768f298a7f711ab1b05e10916f3be8087ed70e156c4
3
right
3cfcbcf879d51987a76a05a339d0f6f2f93130a444532b73677b03a1613992c3
4
left
d990640555a8943eca540a46bbd6c8e52b86848d052bd147ffd5c77f785556c8
5
right
3e0f8231daebd0e796cd717336eb322ee18dc97f3c190073f937036a0fef207f
6
right
7b82e1439f3e2ced375831c6c20f3fbb9f5a25088a3ad284db7ae38222b4fb9a
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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