The Symphoniker Hamburg (Hamburg Symphony Orchestra) is a German orchestra based in Hamburg, Germany. Founded in 1957, it is one of the city's three largest orchestras. The Hamburg Symphony Orchestr
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 0xf3300b46ce6d123f56d3a583db4dded0d63063c72e12499ebd393689766e54f6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96f8c481-21b7-4058-8319-f11f7ca3541f.json and https://artists.proofprofile.net/proofs/artist/96f8c481-21b7-4058-8319-f11f7ca3541f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stravinsky: Apollon musagète - Wagner: Szenen aus Götterdämmerung (Divine)