Johann Nikolaus Harnoncourt (6 December 1929 – 5 March 2016) was an Austrian conductor, known for his historically informed performances. He specialized in music of the Baroque period, but later exten
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 0x16035e3520a3f30d98c910d977af79791f61410ab50afce80a0554b68eccbd20. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6e820c6-984f-4ec7-a0e2-b24609338a35.json and https://artists.proofprofile.net/proofs/artist/c6e820c6-984f-4ec7-a0e2-b24609338a35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).