1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9e93d96e33ac79d336bd98cd4ec6110a2aae22b7901d3a659517828e92591cb2. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d867b76-9e7e-41e7-a405-043416dbfcdb.json and https://artists.proofprofile.net/proofs/artist/2d867b76-9e7e-41e7-a405-043416dbfcdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lieder eines Lebendigen (Georg Herwegh - Poet und Rebell)
Bet und Arbeit ruft die Welt (Bundeslied)
Vom Baume der Großstadt ein welkendes Blatt
Im Januar um Mitternacht - Büxensteinlied
Was Hände gebaut können Hände zerbrechen
Krieg ist nicht gut für den Frieden (Kabarettisten und der Erste Weltkrieg)