Eckart Dux (19 December 1926 – 9 April 2024) was a German actor. Biography Eckart Dux was born in Berlin on 19 December 1926. His father was an insurance executive. He completed his actor training
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 0xfb3180b705b37be527689b912fe0bd452735ec354f815abc20282529e617ea34. 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/9d3e9f9b-98b9-46a8-a9bc-c3b7eb298152.json and https://artists.proofprofile.net/proofs/artist/9d3e9f9b-98b9-46a8-a9bc-c3b7eb298152.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
und der Höhlenmensch - Ein Wort von Albert Hitfield
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 0x5886e6c4a4af4d50aa60081930564ac28583896f5086025d424894ed2ce25f9b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEC712205650.
und der Höhlenmensch - Der Unbekannte im Nebel - Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87306590e793f46b3a7612eb25f42dccb3ef0edb1e7ac75355825997061e9a8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC712205651.
und der Höhlenmensch - Der Unbekannte im Nebel - Teil 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a9a03c6dfcc89531ec0067c4911d2e140055a692fcf4f0dde7b73e4d5f0cca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC712205652.
und der Höhlenmensch - Der Unbekannte im Nebel - Teil 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027b966dfddf4302ce89f45fb087863b9103bc46b1444a75747eec4e7c4b9fe6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC712205653.
und der Höhlenmensch - Der Unbekannte im Nebel - Teil 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9467f92a67b55d6ae8971d26780192e88587af9e0c0bb6dc66ae578c950f92. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205654.
und der Höhlenmensch - Der Unbekannte im Nebel - Teil 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e93dad7717f4c9f98dce2173287d29c92a138a005b4e82fc8ba6ffe18c3f30. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC712205655.
und der Höhlenmensch - Boeses Blut - Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b8107a2ea163feb68d1ed5f19519ad2754a93315d5e2aacfaeb8fbddce1318. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205656.
und der Höhlenmensch - Boeses Blut - Teil 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7301c9bf0ed8575d71bff9844169128090016565ce8624e0195b28ba66f9efcb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205657.
und der Höhlenmensch - Boeses Blut - Teil 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0ab2b026b39e136d611ab100cc5350e90ee75f1f8fbcf245749fd96f22d70d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC712205658.
und der Höhlenmensch - Boeses Blut - Teil 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972fdfd34485c2f4ef5ddd534d12dd25f78d5387d374db4ddb16e6f95f4efa06. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC712205659.
und der Höhlenmensch - Boeses Blut - Teil 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fb109a4fe8a60ca10cb3d2df11cd96cdea947655fd6c1b7a02441ca4095bd0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205660.
und der Höhlenmensch - Ungewohnte Begrueßung - Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c236b443d23c58527e93c3dfc12269a0c158c3008257382841711b211d8a9f7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205661.
und der Höhlenmensch - Ungewohnte Begrueßung - Teil 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebbe21f3c41da777b22ff6e0a5e7e948cbb75c7ecf0377b2c3c93d1e193a542. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC712205662.
und der Höhlenmensch - Ungewohnte Begrueßung - Teil 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c09310b64f3ab5f3d38936a4ee0515cf72986675f7bbd9d43c9c3876a5c2a1a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205663.
und der Höhlenmensch - Ungewohnte Begrueßung - Teil 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe494bd3128a30fe69fcfe42c1e3a3f2f880fa4354c0855770e69d1f86a18ca48. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEC712205664.
und der Höhlenmensch - Ungewohnte Begrueßung - Teil 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc474d3686b6e6f96e2bf59f4d076025f125bd387f246cdd7b1c2140688e8c2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205665.
und der Höhlenmensch - Eleanor, die Schwindlerin - Teil 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107fa4ab5c80e80e128c242ea2e597430dd6ffd73e726429abe74d9ac34d7c92. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205666.
und der Höhlenmensch - Eleanor, die Schwindlerin - Teil 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b8a8410e202c80b9754f8ce9d35ba3f83ee3daa6ec8ba42a12ac173c12843f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC712205667.