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 Wiltshire
Race Newcastle (AW) · 27 June 2026 · 14:10
Product Horses to Watch (Sly Man)
Advised odds 9/2
Confidence Medium
Prompt version htw_backfill_v1
Predicted at 2026-07-07T09:56:15.387044+01:00
Cryptographic Seal
Leaf hash
5d437c024db67335838a332212bbe36ab3009f8bc1a265d3f657433d7cffc3b8
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":"Newcastle (AW)","external_id":"rac_11978746","internal_id":2013,"race_date":"2026-06-27","race_time":"14:10"},"schema":"sr-pick-v1","selection":{"advised_odds":"9/2","confidence_final":"Medium","confidence_raw":"","horse":"Wiltshire","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
5d38687f819578fdec59efc7c4c7fc9053757a1967635c1ae35394ba9c910b9c
2
left
c418cf687a38ef24ecbe72208dc2466b96b2ba5edaee64c9a6c329887f02eca4
3
left
f3e95a392253c47d0582a3e0867f7eea2e62d69d15a34bda86d55930a10f6ec5
4
right
4f7897f3beda8edb1f138311e21961d400d25f7301de23d6669621d1d562cbbb
5
right
a817cebd9cd1e54aa4f738cd5a6c4ec96b0ce795547df80429e8cacd7ead0513
6
right
0a5bb34874ff669c5cf989b9de5608e66f456e8a2c0e4549102b83804e867c02
7
right
2cc9e7f1f0b7c3ec0e9bb3fdcf68995f9a6e05667eb83c69c735851531edb0da
8
right
f1c99ba68a2d45d1bb79f40edc8b534afd41f7a23fe00327643be3c20b514374
9
left
c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10
right
e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294
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