Helmut Zacharias (27 January 192028 February 2002) was a German violinist and composer who created over 400 works and sold 14 million records. He also appeared in a number of films, usually playing mu
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 0xb4d3738fba58a1133fc757269e25432a7f04798109a95a88b932c980c1e9568d. 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/0f546890-70ef-484c-9a04-b8932faa8c69.json and https://artists.proofprofile.net/proofs/artist/0f546890-70ef-484c-9a04-b8932faa8c69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Immortal Voices of German Radio: Rudi Schuricke, Vol. 2 (Recorded 1947 - 1953)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x67423be5c13bb0c3e524e5912df415c51c4fdfc296df1d46613ca334303fd657. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111301744.
Anneliese Rothenberger: Ihre größten Erfolge und Raritäten
Operas and Operettas - Donizetti, G. / Lehar, F. / Kalman, E. / Boito, A. / Puccini, G. / Bellini, V. / Mozart, W.A. (Festival of the Primadonnas)
Die 40 schönsten Urlaubsschlager aller Zeiten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d37cc96a0968a659e6d5559c88e28f909404df83224c7d3fc70392238ed39a1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61800909.
The Wizard of Oz: Wenn du in meinen Träumen bei mir bist (Sung in German)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5d973d16fe8c2b5eacd747f7c013c6e1f6a32fe183bc588bbc3ad7eb7f3151. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL111301728.