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 Indalo
Race Sandown · 4 July 2026 · 14:25
Product Horses to Watch (Sly Man)
Advised odds 10/3
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.808643+01:00
Cryptographic Seal
Leaf hash
5895c5670da582b6bce1755ec993c198a9be0e5bf8075b9084e07150da067a47
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":"2026-07-07T08:56:15Z","product":"horses_to_watch","product_lane":"","race":{"course":"Sandown","external_id":"rac_11989406","internal_id":2341,"race_date":"2026-07-04","race_time":"14:25"},"schema":"sr-pick-v1","selection":{"advised_odds":"10/3","confidence_final":"Medium","confidence_raw":"","horse":"Indalo","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
58c82eb9c89abdc0d1b1f82199a391f797578650ea01030b94b569e693a09188
2
right
4f9763d20cebf2d88907ed484a4c3c5eb6fdb4d9367dae77addbb24fa3af9835
3
left
6f06f42cd5a558e1ebcd9f4f67ad8d8831e7f92ba291e69fb95280dbb5d5a971
4
right
4c8cf19010214392736ed33e28775f64612b76452f601e75bf4de8b37f0d55f7
5
left
9c35144997c1f95839a65dfc94dc3a1139864f7417424a4c114d696b14c74df8
6
left
fc52f76fefc833e1107b03796f834d4ba1336aeb1778053c068d9688bda96b1d
7
left
abd1f2af8516869713aed81c9f26f27b73cfb533f542009e428008b662810a09
8
left
258ce92dcccd21d1d3bbbb39ac789ad1349e3db2aadbe660b7ed0a8637d8148f
9
right
a37bae6f6b56af99833b4e131855bb087cd4e3a90918a4dfd59d83ac87f8f303
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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