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 0xd7dbdfc58eb105d992879f0504f61b51f3f15b657cbfa18994670df2ebf1957a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fab92c7d-52ff-41a7-ada7-c5ec2540eb69.json and https://artists.proofprofile.net/proofs/artist/fab92c7d-52ff-41a7-ada7-c5ec2540eb69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x9ebf78844268000940dcb27b40c82b6ec36d129c7d454f79cd44a41eb0a1c1bf. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DELJ81735056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4edacb3eee26d381dc03a5083adb653191435ebd085462b1fd844333bbfd4ce. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEA621801842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdea0ebba3500494054c2b79bdfaddb6f8f3fa16ed088ca0a1e1c19be440b268. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEA621801843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d909a538662f10ca85c7175df35c91630903f994f053e250b24d976afc2e6f6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEA621801845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02818da50bcbf62caa872b81eba28870d2677743d89996a9aa2d846f896487d8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEA621801848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd316deb6cf3cb817820c5bdb81d6aad05493e7c64030d879920d29e468ab38af. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/DEA621801849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c41cbcecbc8f6ed615bb745cb5fda15514a1106b04288ee60ed9a84b036dc2f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/DEA621801852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9f3e0124a84cfc6a3d7f43a647381c5d34d86448ce51b1646e004b590332fe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEA621801853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6caae908350a594d1882c566214e0c77b02303e3052a41cb692db3b34d9aeb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DELJ82013609.
Weniger allein (Gestört aber GeiL Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4452760924e4e28c82535758b241d7b56f26fcdfc8ea2fc0b2caf0d672c4a937. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/DELJ82013606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d01698e2407b2005da72fc3c6e2d140a0a4b108e2ca1ce145ea8c158de593e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DELJ82013607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ed1e0ab1dcfbe6514477891ffbdec5e07c5c7f1378ed528129fd73f31c5a13. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DELJ82013610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454c1fec98dbabbc2c920cc486e6247ba25b701cb9729040a74b0329536aa330. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/DELJ82013611.
Weniger allein - Gestört aber GeiL Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2de371b884dc553b8b23c6a1be840919d7cba5cd80345782082a1ef7a84ebf. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEZC62021206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15517c7b4a83496e7fc0c32021e8c332a66f6fc59f962549f5b781a60d5aa7a5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZC62297292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14afe0c71f20ce10f593f15af3683271a439ead8329a23d3b66fdca30735050. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEZC62209923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4386051261981be85c72f45ee8aec06cb0cde291e48fa45293b899ba162d7749. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/DEZC62318578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58b16d8aeb973e04be28a0bf63dc8219f59cda3ed22ba97ac713c9716c62161. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZC62343942.
Von null auf Liebe (MartinBepunkt Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bbe126b0642e4841860ebe2fe87d2d1c95acd509736982b3b1a0f8d840d9a1. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEZC62366907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bbe126b0642e4841860ebe2fe87d2d1c95acd509736982b3b1a0f8d840d9a1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEZC62366907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0c781acf77cfd109224c1f4ed33e70ebb7cf13ba0819acaed3e570f1500ba7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEUM72406704.
Das was man Liebe nennt (Akustik Version)
Das was man Liebe nennt - Akustik Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1123dc4676be390ba7f90b09ceb248eb7fc74ef250b35e0394f958ffe0d3b6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEUM72406842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13916841d7bbdba6b9e98506fd18339f9f2319a1efe2dd43ce374fc6b2e07ded. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEUV72401162.
Groß wie Paris (Anstandslos & Durchgeknallt Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad58a1c3be7301e48c14d25242ebc1c16a4ad3fcd41304de65f876e0b9612f. 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/DEUM72411674.