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 Parisiac
Race Hamilton · 25 June 2026 · 19:30
Product Horses to Watch (Sly Man)
Advised odds 13/2
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.243142+01:00
Cryptographic Seal
Leaf hash
375e7b9a2ec7d2805bd194f699ecc7f862239717f6caf9955fa166ba3253f6d9
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":"2026-07-07T08:56:15Z","product":"horses_to_watch","product_lane":"","race":{"course":"Hamilton","external_id":"rac_11977056","internal_id":2064,"race_date":"2026-06-25","race_time":"19:30"},"schema":"sr-pick-v1","selection":{"advised_odds":"13/2","confidence_final":"Medium","confidence_raw":"","horse":"Parisiac","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
373a342a8e1c855ad98575af2838cb7d965d349aa507c6082d0aa37a83d631e3
2
right
04bdcb665fe43d08eafcb820f344cb966dee97aed52d3b58a131272d8c814111
3
right
86eef90944462b52a5db52707862c7e144703ad22e085d6fc971b29f3d9e3e23
4
right
41761ac9854e33c44348993ad3261e676d24ad173c344b74ecb3e8b5437faaba
5
right
e7b21ecf251b2a0abf7ba5f104efc2c3e8b3962d1a53b22acb2191b8b4f96554
6
left
f711bae12213bc1541e7e9261b3cfba05f29b86200f13fa0a0a0591106c845f9
7
right
5f0f7abcd778c76063fcb7f47d37dd69ca800d95c3310c502cc42ed16873af2c
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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