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
Botagoz
Race
Goodwood · 30 July 2026 · 15:35
Product
Horses to Watch (Sly Man)
Advised odds
14/1
Confidence
High (raw 22)
Prompt version
htw_v2_2026-07-06
Predicted at
2026-07-30T09:31:28.113515+01:00

Cryptographic Seal

Leaf hash
f42990e3b71d79179a1a55cd94c19c6332a1e3b78220fa0fd3244f4271b073a3
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 30 July 2026 at 09:31:28 BST

Certificate reference

#10096

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_v2_2026-07-06"},"committed_at":"2026-07-30T08:31:28Z","issuer":"saturday-racing.com","predicted_at":"2026-07-30T08:31:28Z","product":"horses_to_watch","product_lane":"","race":{"course":"Goodwood","external_id":"rac_11991629","internal_id":3473,"race_date":"2026-07-30","race_time":"15:35"},"schema":"sr-pick-v1","selection":{"advised_odds":"14/1","confidence_final":"High","confidence_raw":"22","horse":"Botagoz","position_claim":"win"}}

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