Jonathan Carney is an American violinist and conductor. He is the concertmaster of the Baltimore Symphony Orchestra. The orchestra has announced his intention to retire at the end of its 2026-2027 sea
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e68f3424cc015ab46e4db820e0349309a7c094ae7b88f6cfab3bbb58ab4d3f3. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9da57f8b-ec80-46b2-bf67-2057680f795e.json and https://artists.proofprofile.net/proofs/artist/9da57f8b-ec80-46b2-bf67-2057680f795e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brahms: Sonata for Violin and Piano in G Major - Franck: Sonata for Violin and Piano in A Major