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 Eaton Anne
Race Uttoxeter · 7 July 2026 · 14:30
Product Horses to Watch (Sly Man)
Advised odds 4/1
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T08:26:31.032615+01:00
Cryptographic Seal
Leaf hash
133e79195187a4e318d685a8aa0bafe3bdf5155000f44440145a059426ab9e61
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":"2026-07-13T21:10:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-07T07:26:31Z","product":"horses_to_watch","product_lane":"","race":{"course":"Uttoxeter","external_id":"rac_11987638","internal_id":2557,"race_date":"2026-07-07","race_time":"14:30"},"schema":"sr-pick-v1","selection":{"advised_odds":"4/1","confidence_final":"Medium","confidence_raw":"","horse":"Eaton Anne","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
136a6d9e17b47112ddaf83abdc257b95dc5c9dd97744174b28a71df81cbab07a
2
left
f43740d68582eca34d7eed7ce57e9f47b800f4ea1d370cd324e6c6724b57ceee
3
right
2763998745423e2bfef28bb1fcfffae17d052da7238a81af7a9b82d0b421f4ec
4
left
3db914657e2fa8578be1acc9ac6ff77399d6ce67f94983ba96e56528dd6adc6d
5
left
af140e05672da996cf69ef5641b0f8af72404e94121144b24b40577bc8311994
6
left
28a79af419252db0d5355ceb206307eccea1dfa0bc74e1b70403c4125df54885
7
right
a1446b8f053c3881b7e667ad2875514c1369218939a0da4c16d065175c0bd80d
8
right
7f26ee208367c64ad8017566de1de4e6ffc26d447963c5f0ab2e3225cec0656b
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
Print / save this certificate