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 0x013eec5a0434f0d064bfa9d5a020c69b91124e5ca8b0de4a2d5cd4f7fa6ea4d6. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0233b226-46f6-4af4-bcf7-cff304d646d0.json and https://artists.proofprofile.net/proofs/artist/0233b226-46f6-4af4-bcf7-cff304d646d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TINA: Das Tina Turner Musical (Live aus dem Hamburger Operettenhaus)
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 0x29da7844cddde7deb38d62826a425a7aaa49b38ce5eaace6310a583ebf787183. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DELE62000408.
Schau nur nach vorn (Don't Turn Around) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878cc7ad2bdd9ac79b54caa4728611a694f131ae7ae33306b4d06476cceec349. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DELE62000410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec6ce70f90748a9c7e101f39a9d2f4c9691a0475df5b7ebd7b4b5667e1ff45e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DELE62000413.
Wir kriegen das schon hin (It's Gonna Work Out Fine) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e0109028f31f0e3c2af1e3ecfcabdabed5a49f6cb84b24a6b9a8d921b634bb. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/DELE62000414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561cd3dbe2e850ee2797088710add26c139311062031e28102753d57e0384671. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DELE62000415.
Lass uns zwei Eins sein (Let's Stay Together) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ef6224355f0bfe73082b947bef19724bf9e4ebd2315c6f00f4e553eaae7838. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DELE62000416.
Sei gut zu mir (Better Be Good to Me) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8200cf7bd1f50c6a20fb024b3b197ee94d92587d20f0b291a8cbb21798297d13. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DELE62000417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e0ec8c4728012eb2a1f0ac14120b308ec6add7436b21d0b32e217ef10b4cd3. 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/DELE62000418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc0dff61c0bab0ed33cdc673130f69e123be4268c955dae54a0034ad5b701c5. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DELE62000419.
Verzeih mir noch mal, Baby (Be Tender with Me Baby) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f27174c66c20ab2cdd728a517db81f64625724293c3a79a327d2daf6b6a82a. 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/DELE62000420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6a8ae8195f73e27399d78d193c04b8a042be5dbbce11e0c7fec5e130658832. 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/DELE62000421.
Ich kann einfach nicht mehr streiten (I Don't Want to Fight No More) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6dcdd269ff36b812dad94581d75fe6fc9ca1e5e55cce34e61bc863e624745d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DELE62000422.
Ich werd' weitertanzen (Private Dancer) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14aa5c2951c4f0bbd94cb2432d0b1d6702f622101fe7d53b682bf5be15ebd62a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DELE62000423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060b455a7a0b0b5527c0d45f13c911bf29f9388713a4e5d1d8cd78d1a4d6e123. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DELE62000424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ebb3cdc52c9492b2d54336a4cc14f578b469b07e91d34caed007fb9dd5fd15. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DELE62000425.
Regen fällt wie Blei (I Can't Stand the Rain) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90478a8c721d138747a2d6ab0bca22963e7b8d64dbd16c43c42b6de86a1fdcce. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DELE62000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56021edf7f7e16b453dad209713d01965ee2f01068f47dc12d5288db22afc2fe. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DELE62000427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b6ce5ac520ebfe80e7a1dcad91c1294d2eb99ae5cf9dc5be40fbbba889ea30. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DELE62000428.
Wir woll'n keine neuen Helden (We Don't Need Another Hero) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e68178032cccd5cbf1fb7148e138665a2a0498e74323af6ed06867a06e980b7. 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/DELE62000429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe257b961440a4f1cfe681edfce0fd0d2078f818996a995ed324fc9ead19a8a68. 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/DELE62000430.