thumb|The grave of Erik Moseholm in Copenhagen. Erik Moseholm (13 May 1930 – 12 October 2012) was a Danish jazz bassist, composer, bandleader and music administrator. He was the leader of the DR Big B
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 0xdeb56270b416608bac561f988a30ea6d70420d635d3859c123e7a2fb10560a81. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8353c9fb-6039-4a07-b4f6-8a4479d61c76.json and https://artists.proofprofile.net/proofs/artist/8353c9fb-6039-4a07-b4f6-8a4479d61c76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live Molde-Pori-Copenhagen (feat. Jørn Elniff & Arne Forchhammer) [Live]