Hans Friedrich August Carste (5 September 1909 in Frankenthal – 11 May 1971 in Bad Wiessee) was a German composer and conductor. He arrived in Berlin in 1931 after working in Vienna and Breslau. He co
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 0xc7f27e75a0d6144a47482b71583b92001107461d25158b0b9a2cbdb3f0ca8838. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb51ff58-4cf4-4d51-ab1d-41ed638b4fec.json and https://artists.proofprofile.net/proofs/artist/eb51ff58-4cf4-4d51-ab1d-41ed638b4fec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schellack Schätze: Treasures on 78 RPM from Berlin, Europe and the World, Vol. 20 (Remastered 2019)
History of German Film Music, Vol. 4: Es leuchten die Sterne (The stars are gleaming) (1937-1938)
Der Mann, der Sherlock Holmes war: Jawohl, meine Herr'n
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490a16040915321378f345f80c27a44ad0d304218a317823764f740411ee3edb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEL111200140.
Die Goldene Ara Deutscher Vokalensembles (Recorded 1931-1941)
Die besten Hits von Fred Raymond im Originalsound, Vol. 2 (1934-1943)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51033449a251d60fb08f74c26c1b2e6ec81021347ba8059d2fcbdaad663fcedc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF066506640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b03f629c13b7443063c61f4b5acaa96e421eb1fdd739e8317720b3935ee61b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEA319900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c74862a36b3e11ccad5b8f3e9c548745a87dddc13429452b982ba31b1de74e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR10S1533376.
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
Schlager & Swing Hits der 20er & 30er Jahre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300e9675c7526d527f8a883461ca4d9aa553a3f125fdffa9dd22adc59dcc5300. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DEG320701209.