thumb|Witt during a 2014 performance. thumb|Witt at Rockharz Open Air 2019 in Germany Joachim Richard Carl Witt (born 22 February 1949) is a German rock musician and actor who has been active since 19
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 0x1e9cc172a8060c4ae91efc358b0cada1ffb6312810c808c9bd30a586da6fc6dd. 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/f5ff8e96-aad5-4eb7-a943-f15d62628fb6.json and https://artists.proofprofile.net/proofs/artist/f5ff8e96-aad5-4eb7-a943-f15d62628fb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kosmetik (Ich bin das Glück dieser Erde)
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 0xeaa6367b618e21b1f45f3e63fb4b96bb9c17061fa5d85d60052456761cdb46d2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA629262350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64675e5e821235c8b0445017dadd9a67ab5ee7e24fd87e68d9d0b8d16ff8095f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA629262331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136e04aee449db88b9272668121537f7b30877222fb74f83e71ceb09a4ac231c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA629262360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82ee2bca82c113649e8741946480ca405092f2e51ecf528d11a4c0af8542641. 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/DEA629262370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb6bae4870d98b656d214ddbcdd0b16748d2206a522b9a6c05fc52679a0936e. 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/DEA629262380.
Mein Schatten (Na, na, na, du Bandit, du)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaf21d905763fc453e118679642d8631ea162e898e0232f1f4ec5e840964ff7. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEA629262340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94db175f1b3a99789924f5a58208cf7b1b152ecf7fbc83b3e48e7dd792a1e47. 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/DEA629262390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadeb3fe46cc0180bf096a22de2e6502b8f868c384cd75eee7979833c0bf9a065. 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/DEA629262400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a73b3905e66e9cedd3427f0b22b5f72d982c3a6a4923356f60bec40b5599b9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA629660020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5635fb6c8d5a3a85bee7bc43e4fc23e4037bbda27bb06a551132b713715c8c. 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/DEA451800510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64675e5e821235c8b0445017dadd9a67ab5ee7e24fd87e68d9d0b8d16ff8095f. 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/DEA629262331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f91c3182eb7d9ffbaa21ed5d679d1a5c5fc8900f1036d8afd286af35e9517e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZ901401176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f91c3182eb7d9ffbaa21ed5d679d1a5c5fc8900f1036d8afd286af35e9517e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:17:49Z), 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/DEZ901401176.