Certificate of Pick Authentication #648 · Saturday Racing

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: Parisencore
Race: Perth · 12 July 2026 · 15:51
Product: Top Rated Today (Sly Man) · Top Rated — Top OR Ratings
Advised odds: 6/1
Confidence: High (raw 125)
Prompt version: top_rated_v1_2026-07-08
Predicted at: 2026-07-12T09:38:16.843382+01:00

Cryptographic Seal

Leaf hash: f16f0e6e0893667a420d442322e2c2b31def79c7111163e357c0467136b09691
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.

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":"2026-07-13T21:10:26Z","issuer":"saturday-racing.com","predicted_at":"2026-07-12T08:38:16Z","product":"top_rated","product_lane":"ratings_or","race":{"course":"Perth","external_id":"rac_11987794","internal_id":2760,"race_date":"2026-07-12","race_time":"15:51"},"schema":"sr-pick-v1","selection":{"advised_odds":"6/1","confidence_final":"High","confidence_raw":"125","horse":"Parisencore","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.

#	Position	Sibling hash
1	left	effe13b1bd4b01d0b1d00f135981ebe49a13e8b1a54f755788873c1093f0b5f7
2	left	978458e5fb7269c13281468cb554a8ca2c9542f0ef2b6bc5fdc9af82b89e5d43
3	right	0d4304f8751b4096999173db0286f1a0de33d4e81172a23077b86821fff517af
4	left	76dcdcb009be19e021457d85235cc60c10460f67e2211c32a24f90f81141ec6c
5	left	793eb2bba37ab7e80c3cc1614e66a33db3e4b217a5e2f3921f51ff8ff177fdbb
6	right	da3d768220597c0636847e1f28e766d918af491f20ffa568c070cdc81dea7c6a
7	right	7b91ffdbc0775ceb1efdc9c047cbf134a340783b2dc1627173e9cef778ec1cf8
8	left	5029b4611810c87e9e04fd3af160ed33fa21436626c66ccbd825c959f40bd90c
9	right	559310ef76957df08e5f62efc49ff6649a36113b72a52a9a4471bd1801615514
10	left	f294ff8c83ee2bf537f6f3a850e09ef12f44b3915f1df793eb9ebfc3a7648f55

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