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 Goodwin Face
Race Cartmel · 28 June 2026 · 15:37
Product Horses to Watch (Sly Man)
Advised odds 2/1
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.434319+01:00
Cryptographic Seal
Leaf hash
096a01dc4fe9d1bdba6cf9e8d7f5f2d998cbd6e756c49a8faccb2595f5860378
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":"Cartmel","external_id":"rac_11973819","internal_id":2190,"race_date":"2026-06-28","race_time":"15:37"},"schema":"sr-pick-v1","selection":{"advised_odds":"2/1","confidence_final":"Medium","confidence_raw":"","horse":"Goodwin Face","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
0a239dab6bf94c4e8db6582312d6892f0a0021f9f11ffa025d120f90e934414e
2
left
b62299cc7de8f2c937ce1f7b82d2f20bd3b2083027d77fd261f22375fb3b3cbd
3
right
aaae7107f2ff179564814889369c06f8422261ab2ae0b88acbc4941bdddd62c0
4
left
b993b25146a2ccafeb295db73d44aed2a6886818a58dd431a2cd09e33d5dcde8
5
left
397481a13fc9f952f7171371b43350cc56a626159dd2a62c532b87e7335a7e82
6
right
176dfb74ea168aed799314f1c1366361f5a82fdfca5ef82a72a3c3a04d0a9176
7
right
a1446b8f053c3881b7e667ad2875514c1369218939a0da4c16d065175c0bd80d
8
right
7f26ee208367c64ad8017566de1de4e6ffc26d447963c5f0ab2e3225cec0656b
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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