Tomislav Mužek is a Croatian tenor and opera singer. He studied in Vienna at the University of Music and Performing Arts and made his professional debut at the Vienna State Opera in 1999. Was an ens
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 0xab26e050043c8a1d36ad4cbc1718a54e72a80179f170f8fd97272b1ff3072d0c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6080a134-8242-4677-b81b-cda054dc21c1.json and https://artists.proofprofile.net/proofs/artist/6080a134-8242-4677-b81b-cda054dc21c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le più belle canzoni di Napoli (Live in Dubrovnik)
Der fliegende Holländer, WWV 63, Act II: Ach! wo weilt sie, die dir Gottes Engel einst konne zeigen? (Live)
Wagner: Der fliegende Holländer, WWV 63 (Live)
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 0xb312519527ac5ec7243307e1bc7df5494100516ab33539f619f0f22559660b45. 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/GB6CE1800288.
Der fliegende Holländer, WWV 63, Act III: Cavatina. Willst jenes Tags du nicht dich mehr entsinnen (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf8f9b6d7dbed429be2c8bf78b971c89cbaeb0625e160e4328911c20a06c363. 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/GB6CE1800309.
Der fliegende Holländer, WWV 63, Act II: Mein Herz, voll Treue (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbac55774faee3636dbb24df8755a54d45511dd9accfc9ee297f30fdbdb6b9a7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GB6CE1800290.
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
Der fliegende Holländer, WWV 63, Act II: Wie? Zweifelst du an meinem Herzen? (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a4f9828d31fe0f871077ff19a283425599a1f92b2ef81859b98a117549b845. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GB6CE1800291.
Der fliegende Holländer, WWV 63, Act II: Fühlst du den Schmerz, den tiefen Gram (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86193761d4764edc38bf5bed99ce8ece5b919ebee27b2abc6246c6f1d1c7039. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GB6CE1800292.
Der fliegende Holländer, WWV 63, Act II: Auf hohem Felsen lag ich träumend (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2d622623ae1c4c2e8fbc339d74351e6fd002249389dfde4498c0bd991355b9. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GB6CE1800293.
Der fliegende Holländer, WWV 63, Act III: Was musst' ich hören (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccde3ac25008f9693c57020da7ee709df634314e911dc9b39e832f3667b2610. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GB6CE1800308.
Der fliegende Holländer, WWV 63, Act III: Verloren! Ach, verloren! Ewig verlor'nes Heil! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7002686cd526ad304ecb19f398d8e8e8101f0c8ab5afb9cb49750ef9543b170. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GB6CE1800310.
Der fliegende Holländer, WWV 63, Act III: Zu Hülfe, rettet, rettet Sie! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f29e7db829e8a1c5c6009196d79eb3b2b889bdf128b3cd27bd962881651204. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GB6CE1800312.