Saturday Racing · The Transparency Ledger

Certificate of Pick Authentication

Issued under schema SR-PICK-V1

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
Believitanducan
Race
Kempton (AW) · 10 August 2026 · 17:00
Product
Bet of the Day (Sly Man)
Advised odds
13/8
Confidence
MEDIUM (raw 7.06)
Prompt version
v1_f12e6534
Predicted at
2026-08-10T09:40:41.778606+01:00

Cryptographic Seal

Leaf hash
061a243604fc4ccb4f4303a871661d6f93a79a8d7c90686560fc8c960f5b6424
Your browser
Batch
Not yet batched. The end-of-day Merkle tree hasn't assembled yet — the leaf hash above is nonetheless independently verifiable now.

Signed

Saturday Racing Editorial Ledger

Committed 10 August 2026 at 09:40:41 BST

Certificate reference

#11781

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":"bod_composite","prompt_version":"v1_f12e6534"},"committed_at":"2026-08-10T08:40:41Z","issuer":"saturday-racing.com","predicted_at":"2026-08-10T08:40:41Z","product":"bod","product_lane":"","race":{"course":"Kempton (AW)","external_id":"rac_32293870687","internal_id":3898,"race_date":"2026-08-10","race_time":"17:00"},"schema":"sr-pick-v1","selection":{"advised_odds":"13/8","confidence_final":"MEDIUM","confidence_raw":"7.06","horse":"Believitanducan","position_claim":"win"}}

Server-reported status: not_yet_batched · Ledger overview at /verify/