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
Two Commanders
Race
Musselburgh · 24 August 2026 · 15:45
Product
Horses to Watch (Sly Man)
Advised odds
10/3
Confidence
High (raw 17)
Prompt version
htw_v2_2026-07-06
Predicted at
2026-08-24T09:55:08.469589+01:00

Cryptographic Seal

Leaf hash
0dabeb4eb462919d46233b26ccf2a6c13b1afd7ad20c802de21a1066884cb742
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 24 August 2026 at 09:55:08 BST

Certificate reference

#14126

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":"2026-08-24T08:55:08Z","issuer":"saturday-racing.com","predicted_at":"2026-08-24T08:55:08Z","product":"horses_to_watch","product_lane":"","race":{"course":"Musselburgh","external_id":"rac_32295319563","internal_id":4413,"race_date":"2026-08-24","race_time":"15:45"},"schema":"sr-pick-v1","selection":{"advised_odds":"10/3","confidence_final":"High","confidence_raw":"17","horse":"Two Commanders","position_claim":"win"}}

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