Catherine Anahid Berberian (July 4, 1925 – March 6, 1983) was an American mezzo-soprano and composer based in Italy. She worked closely with many contemporary avant-garde music composers, including Lu
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 0x2998676e36d231023c28d886c856b3d8d554bc8439cf16d91edb765dcd842324. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55c4bc84-8643-43c4-9833-d69a7b38d936.json and https://artists.proofprofile.net/proofs/artist/55c4bc84-8643-43c4-9833-d69a7b38d936.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
magnifiCathy - The Many Voices of Cathy Berberian
Wie einst in schöner'n Tagen - Salonmusik der Belle Epoque