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
Reigning Profit
Race
Ripon · 6 July 2026 · 19:40
Product
Top Rated Today (Sly Man) · Top Rated — Top Market Movers
Advised odds
10/3
Confidence
Medium (raw 38)
Prompt version
top_rated_v1_2026-07-08
Predicted at
2026-07-08T22:13:45.492028+01:00

Cryptographic Seal

Leaf hash
8fd1e23f4c92b9c36e1f52bd9bd15f2a02e980757073d41665c3cd5b780647bf
Your browser
Batch
13 July 2026 · 709 leafleaves · inspect batch →
Merkle root
eba1d4cb07b18df5f26ea6211dae664c2a8d9ce7bdcd95a3a7d9da03ed6cf62b
Your browser walk
On-chain
Off-chain verified. Anchoring on-chain is a separate, gas-gated step.

Signed

Saturday Racing Editorial Ledger

Committed 13 July 2026 at 22:10:27 BST

Certificate reference

#358

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":"2026-07-13T21:10:27Z","issuer":"saturday-racing.com","predicted_at":"2026-07-08T21:13:45Z","product":"top_rated","product_lane":"movers","race":{"course":"Ripon","external_id":"rac_11989926","internal_id":2525,"race_date":"2026-07-06","race_time":"19:40"},"schema":"sr-pick-v1","selection":{"advised_odds":"10/3","confidence_final":"Medium","confidence_raw":"38","horse":"Reigning Profit","position_claim":"win"}}

The Merkle proof

Each hop is a sibling hash. Your browser walks these from the leaf up to the root, hashing pairs at each step.

#PositionSibling hash
1 left 8fa9b698c56391f3674468c4553a994a0b577347c4696b79bebb55fb77597867
2 right 1149823c7f5a3f95a019d14de57b430d73f89ee5f1ab630e5959014933390ef4
3 right eaf7675e34c6e45bb9fa8f19f7032dfd9a32985d298092d0fb27acae16599bf5
4 left 3e2c17e6cdd97033b1a3886fbb50813f4da21a7ab3552dc4a92fcdd4f7a8f0aa
5 right fe08e96ade7fc821154c30afa831e006a5b4ee8fe67c36f3e2da45d09ac142e9
6 left de4c18b344759b795e65fd7d556764fb84fe70fe3ed694d8fbe24938047d102e
7 right 4c56aa4f1d1039c6ad4821c5c72376f7d1ccb9ab4f942fb7d343352d40712b8c
8 left 9a677d21c2cd9160c97a508996b4307c85b3aa9b95597b3eca8c62f864ebab76
9 left c1144f953d5061b1e3ec979350290e5e7106de524b96bf728133a9efff0efd59
10 right e25c8d2b935f54f140bee5f6c7b02a176294b2ed6153543d94a92504abeba294

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