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 Elusive Duke
Race Killarney · 14 July 2026 · 18:40
Product Pick Winner (Mr Fox)
Advised odds 15/8
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-14T09:27:19.420170+01:00
Cryptographic Seal
Leaf hash
4e6288d622baad81ae43867d5096432e2d1ffe9c67e6fc90b2f4488ca31ad5ab
Your browser
…
Batch
14 July 2026 · 40 leafleaves
· inspect batch →
Merkle root
072e707d9142102581b7395437488a0c34e70eca6717bd16f437ee6a3030212a
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":"llm","prompt_version":"v3_b557cbd4"},"committed_at":"2026-07-14T08:27:19Z","issuer":"saturday-racing.com","predicted_at":"2026-07-14T08:27:19Z","product":"pick_winner","product_lane":"","race":{"course":"Killarney","external_id":"rac_13000001040","internal_id":2857,"race_date":"2026-07-14","race_time":"18:40"},"schema":"sr-pick-v1","selection":{"advised_odds":"15/8","confidence_final":"Medium","confidence_raw":"Medium","horse":"Elusive Duke","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
4b4b4e86017a6437ccd72431e38b62eff24a6e9ab338610ef85425661446946c
2
right
e7f44df35609349c4b6c4250164058879c124d00b3051d87166a4d91f9e5e37a
3
right
43f4d3a2dd3297157c00f00567c800b4b4773b9cfee29439fa299339996858a1
4
right
6750af38b16217d45a6c9a894ebb99646b6a7a6db2f1ea240fee744554f03d13
5
left
419044a95c8d9b4f7b2aa648c0e3d19dd2fd31b2be497eb6bc5c3e8f15165528
6
right
1172ad24b701d8eee390448495367143c88291d705fba7a117c56c25df2973af
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