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
Minerva
Race
Gowran Park · 12 August 2026 · 15:52
Product
Top Rated Today (Sly Man) · Top Rated — Top OR Ratings
Advised odds
11/2
Confidence
High (raw 101)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-08-12T09:50:22.987618+01:00

Cryptographic Seal

Leaf hash
06dd337f1db9fb607fa7ea22688eafb6dad79275cc191fd42ab3cf9164b7067e
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 12 August 2026 at 09:50:22 BST

Certificate reference

#12070

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":"2026-08-12T08:50:22Z","issuer":"saturday-racing.com","predicted_at":"2026-08-12T08:50:22Z","product":"top_rated","product_lane":"ratings_or","race":{"course":"Gowran Park","external_id":"rac_32294101190","internal_id":3966,"race_date":"2026-08-12","race_time":"15:52"},"schema":"sr-pick-v1","selection":{"advised_odds":"11/2","confidence_final":"High","confidence_raw":"101","horse":"Minerva","position_claim":"win"}}

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