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
Amelia Earhart
Race
Cork · 14 August 2026 · 19:10
Product
Top Rated Today (Sly Man) · Top Rated — Top TS Ratings
Advised odds
7/2
Confidence
High (raw 100)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-08-14T09:50:17.692771+01:00

Cryptographic Seal

Leaf hash
d93f35b0308d6393690dc86c8ef4c96732f8b8b06d08184c7982d51f6ae2ade9
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 14 August 2026 at 09:50:17 BST

Certificate reference

#12401

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":"2026-08-14T08:50:17Z","issuer":"saturday-racing.com","predicted_at":"2026-08-14T08:50:17Z","product":"top_rated","product_lane":"ratings_ts","race":{"course":"Cork","external_id":"rac_32294168985","internal_id":4037,"race_date":"2026-08-14","race_time":"19:10"},"schema":"sr-pick-v1","selection":{"advised_odds":"7/2","confidence_final":"High","confidence_raw":"100","horse":"Amelia Earhart","position_claim":"win"}}

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