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 0xf545aaebb497fa375c73351fe7609e14464903c6808954cc6d823f9a943eb0f6. 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/02021396-f827-4a6e-99d4-8dad93e73767.json and https://artists.proofprofile.net/proofs/artist/02021396-f827-4a6e-99d4-8dad93e73767.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bibi und Tina: Mädchen gegen Jungs (Der Original-Soundtrack zum Kinofilm)
Mädchen gegen Jungs (feat. Lina Larissa Strahl, Lisa-Marie Koroll, Phil Laude, Louis H.)
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 0x6ab91d13371189399d9d0d7cb9c86524d54782d86a67099f05f04eb9bb14a655. 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/DEB582200481.
Bibi und Tina - Einfach Anders (Soundtrack zum 5. Kinofilm)
Bibi und Tina (Der Original-Soundtrack zum Kinofilm)
Bibi & Tina - Titelsong (feat. Fabian Buch) - Neue Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1756bb84a849b8df126d57cc455f3e47d0f0707552114785108fdf6ebbec2978. 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/DEB582200413.
Bibi und Tina: Tohuwabohu total (Der Original-Soundtrack zum Kinofilm)
Bibi und Tina Lied (feat. Bibi und Tina) - Partyversion
Bibi und Tina Lied (feat. Bibi und Tina) [Partyversion]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f22af1f20b411f26763b67db1cd67b0e5ec62aa96de076911693f90707052af. 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/DEB581901376.
Ich bleib hier (feat. Lina Larissa Strahl)
Bibi und Tina: VOLL VERHEXT! (Der Original-Soundtrack zum Kinofilm)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385d831cc4fc079c9d1fc53a107f8448ac1b48bb69d50e8110c6ca875792db1c. 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/DEB582200452.
No Risk, no Fun (feat. Lina Larissa Strahl, Emilio Moutaoukkil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde26d7c509414781d68f78694001c05a9f1997d9a976dc3e32ef9001d71bbe71. 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/DEB582200453.
Liebe People (feat. Emilio Moutaoukkil, Ina Müller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e372f98eae1fe57104471b3336920204a27c20daec8e215d59da291ae4d6580. 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/DEB582200454.
Sweet Romance (feat. Save The Disco, Tricia Parker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57453691cc02e89890cceb0e737a89877678f265c8b4c960d8d37a76ab553fe. 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/DEB582200455.
Auf einer Welle (feat. Lisa-Marie Koroll)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf2c98ecc5c7324620a11a1bc6bb636cf64f91649aca72cdbcb0af7b179ffd3. 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/DEB582200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb548569ce1f2b370563eedeee2a5db1f818d825c76e30c7a54f840f8584d6778. 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/DEB582200457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a525aab93714ff2cb80c2993c69b14dd672ed74c8194f6d0bc7a753eb8eb4f. 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/DEB582200458.
Big Bang (feat. Lina Larissa Strahl, Fabian Buch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf1f9d5499b5039f38c89ae69f1cb910c26ab713d538a73243083b838349280. 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/DEB582200459.
Bibi & Tina (Voll verhext) [feat. Fabian Buch]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0776c116ea850b305804d0d3940cbf7f4c334250b88c80d04460f2fdad9087d3. 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/DEB582200460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf764744d4f142bbeecfb15935d89f7eb1a7729db7523f7566aedf381daa43d9e. 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/DEB582200461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719cd31025f9c66b190e9ddbe71e7c143f7f48d6bb6fa89b8d9c64c93a5554ae. 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/DEB582200462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf406c4edb6eaab422daa3a4d67eb81bee8b6aa8c61452906b0523c34fff8f461. 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/DEB582200463.
Ich bleib hier (feat. Lina Larissa Strahl) - Chillout Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8dabcf363f8629bee95b8c968231b07f4878c7522bc302720bcd0203841752. 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/DEB582200464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87665f7eebc9e8724282aa5630659941dbfbd6ff71422d15eb2ffd89f56cb665. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEB582200465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e64f4a3572f6cf5fd13bb4b26ff20bca9fa1d7c6e8886ff94dbb45a5a5a54c. 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/DEB582200466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eee947b337214f71d4cc1512e69f29d859cee935e39dbfc18b5283f199e77f8. 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/DEB582200467.