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
Network Rgb
Race
Worcester · 23 August 2026 · 16:08
Product
Top Rated Today (Sly Man) · Top Rated — Top Market Movers
Advised odds
14/1
Confidence
Medium (raw 36)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-08-23T09:50:16.563080+01:00

Cryptographic Seal

Leaf hash
585e5e969f5067219c45c2388f6d80a4cf90d804089275a99d240d37b33afde7
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 23 August 2026 at 09:50:16 BST

Certificate reference

#14001

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":"top_rated_v1_2026-07-08"},"committed_at":"2026-08-23T08:50:16Z","issuer":"saturday-racing.com","predicted_at":"2026-08-23T08:50:16Z","product":"top_rated","product_lane":"movers","race":{"course":"Worcester","external_id":"rac_32295234335","internal_id":4394,"race_date":"2026-08-23","race_time":"16:08"},"schema":"sr-pick-v1","selection":{"advised_odds":"14/1","confidence_final":"Medium","confidence_raw":"36","horse":"Network Rgb","position_claim":"win"}}

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