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 0x98d8d57fa00d34e7eff91405b7e53f559d83c853fc127c3de7abbd6daa8e4eaf. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22301f5f-b821-410d-967b-d454c64c5597.json and https://artists.proofprofile.net/proofs/artist/22301f5f-b821-410d-967b-d454c64c5597.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Die fabelhafte Welt der Musicals - Vol 1
Die fabelhafte Welt der Musicals Volume1
Ein kleines bisschen Licht - Soundtrack aus dem Musical Barbarossa
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 0xf505abee6eab1bdd6fb6c4f9cd851eeb4425f073b5213924e5f43db7d058ba07. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000257 — a six-check JSON result.
Zeltzauber - Soundtrack aus dem Musical Barbarossa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b98fd53d6bbcb229b4b18d33e6eb63f6be8c9f20776743ab6dcf24f6fa92715. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000263 — a six-check JSON result.
Für alle Zeiten - Soundtrack aus dem Musical Barbarossa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327aade23f3ecf07a5debaed8644a4d149284b8d6f13a7ae9e1d9e87a09ffdb0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000262 — a six-check JSON result.
Fluch - Soundtrack aus dem Musical Barbarossa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe36e3c7e9635b73330f58593f6a9a2292182532d2415b8e011d070be6594cf5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000272 — a six-check JSON result.
der Abt stirbt - Soundtrack aus dem Musical Barbarossa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f00bceaa479ff64411a5d1a48e9053aa4ba211339eecda9555c480f8fb0b915. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000278 — a six-check JSON result.
Mir fehlt dein Lachen so sehr - Soundtrack aus dem Musical Barbarossa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390155165ac02c33400da18d5e7ae4b09830da029e1e9b04266eb72c29ebdcd7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000280 — a six-check JSON result.
Flieg meine Seele flieg - Soundtrack aus dem Musical Tam Lin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2337f8cc108ce910dd2b517127dcff1794701e4b49f7b47f4a8260a32de389. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000403 — a six-check JSON result.
Ein Fünkchen Liebe - Soundtrack aus dem Musical Tam Lin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80b2e4666f2ea2426a890275e8eb9f7db37f9d8ab1313def037873b6aeaa002. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000409 — a six-check JSON result.
Verliere nie dein Herz an die Elfenkönigin - Soundtrack aus dem Musical Tam Lin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6513643f70082c58177966ae9133e97c192636838dfa8015914eebbf4276997c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000411 — a six-check JSON result.
Irrlichter - Soundtrack aus dem Musical Tam Lin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974ac628bbfdecaab6ce8b62f336652137a8b133314e29da884c123c49f3d715. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000421 — a six-check JSON result.
Es war ein Ritt im Kellernest - Soundtrack aus dem Musical Ur-Faust
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d0f12e176216784f91a1ac08fc82e9ceb733a85c5374d9eeeb062d90ba0e0c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000135 — a six-check JSON result.
Erdiger Geist - Soundtrack aus dem Musical Ur-Faust
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f55e08bbe2a427e1d124645d444933ec3aa99868771a9b54df0d63a0455f327. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000139 — a six-check JSON result.
Trauben - Soundtrack aus dem Musical Ur-Faust
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a146b6c52c01a815d309527c92545a1e23cc50d9e63503b2b78062ff86daae9. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000140 — a six-check JSON result.
Es war ein König in Thule - Soundtrack aus dem Musical Ur-Faust
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38553b3ded2768a9c4adbd13ab10c8e9bddd043f55ffb8b4ddaf31286422a02d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000148 — a six-check JSON result.
Was machst du mir vor Liebchens Tür - Soundtrack aus dem Musical Ur-Faust
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6fce0bcd2f912850177234f7da400ba4f4ba65d88d9abf1b4112b049bfd378. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DENM12000152 — a six-check JSON result.