1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb859aeb6f56bc256302a621486ca008ce4e605588bfa0b52d69c808c2c01062. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7a4cfce-089b-4330-b98b-68af6e511284.json and https://artists.proofprofile.net/proofs/artist/c7a4cfce-089b-4330-b98b-68af6e511284.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Definitive Rock'N'Roll Collection, Vol. 1
The Definitive Country Collection, Vol. 1
The Definitive Country Collection, Vol. 4
The Definitive Country Collection, Vol. 2
The Definitive Country Collection, Vol. 5
The Definitive Country Collection, Vol. 3
The Definitive Country Collection, Vol. 6