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
Maid In Devon
Race
Salisbury · 25 July 2026 · 19:15
Product
Bet of the Day (Sly Man)
Advised odds
13/8
Confidence
MEDIUM (raw 7.67)
Prompt version
v1_f12e6534
Predicted at
2026-07-25T09:50:42.198830+01:00

Cryptographic Seal

Leaf hash
c876a03f8527cfa74fddcfc812a8980a67315f3d7d3f4ed220b623dac0110abb
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 25 July 2026 at 09:50:42 BST

Certificate reference

#9481

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":"2026-07-25T08:50:42Z","issuer":"saturday-racing.com","predicted_at":"2026-07-25T08:50:42Z","product":"bod","product_lane":"","race":{"course":"Salisbury","external_id":"rac_32292421811","internal_id":3329,"race_date":"2026-07-25","race_time":"19:15"},"schema":"sr-pick-v1","selection":{"advised_odds":"13/8","confidence_final":"MEDIUM","confidence_raw":"7.67","horse":"Maid In Devon","position_claim":"win"}}

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