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 Adelaide Bay
Race Wolverhampton (AW) · 14 July 2026 · 18:55
Product Pick Winner (Mr Fox)
Advised odds 7/4
Confidence Medium
Prompt version v3_b557cbd4
Predicted at 2026-07-14T09:27:34.657840+01:00
Cryptographic Seal
Leaf hash
01326e3341d566061b4ee46d02978cde4425a3a96c287b11505f23fbcbaa7763
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":"2026-07-14T08:27:34Z","issuer":"saturday-racing.com","predicted_at":"2026-07-14T08:27:34Z","product":"pick_winner","product_lane":"","race":{"course":"Wolverhampton (AW)","external_id":"rac_13000000377","internal_id":2844,"race_date":"2026-07-14","race_time":"18:55"},"schema":"sr-pick-v1","selection":{"advised_odds":"7/4","confidence_final":"Medium","confidence_raw":"Medium","horse":"Adelaide Bay","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
0489b05d419cef6bb8cf20ffdaee9130c673429c0c1295d5f7d6d966d7f649ec
2
right
50b1dc573e6b9555c524f9cd4bff48789b4391a6f7b2e089322e252feb8b6427
3
right
be6851fa8a46eecb7fde805a5f722e11d983c7ece0fccd7cd00806127eb477cf
4
right
3f174317dcaf8c24a797a38e1b7eddeed15ecda3f9bfaf312435af4c3e58cadd
5
right
aa769b978034ee19a563d4739b58c2e3f4bf033bf01a066e1155e06a1b5193e3
6
right
1172ad24b701d8eee390448495367143c88291d705fba7a117c56c25df2973af
Print / save this certificate