thumb|right|300px|Blues shuffle or boogie played on guitar in E majorWilbur M. Savidge, Randy L. Vradenburg, Everything About Playing the Blues, 2002, Music Sales Distributed, , pg. 35 (). Boogie is a
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 0x6d5e5799a1d3e64c85f485f7d6e9b4ca47c995415e3ec76adbc53a5bc0b7af41. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3c17531-f161-468a-8254-341e33a24b0d.json and https://artists.proofprofile.net/proofs/artist/d3c17531-f161-468a-8254-341e33a24b0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).