Alexander Kaimbacher (born 26 December 1969) is an Austrian opera, operetta, oratorio, Lied and concert tenor. Life Born in Villach, Kaimbacher studied music, theatre studies and German at the Univ
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 0x5008940a85a449b4bbe300b89092951777f956f2827812b112f0ac2e5399b9b8. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25cd885f-42bc-4863-ad76-d34596df31fb.json and https://artists.proofprofile.net/proofs/artist/25cd885f-42bc-4863-ad76-d34596df31fb.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x2fece77942678b0ad19a03963b6e6c964cd468cf6a0868079344082beb57beb1. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/NLE421803601 — a six-check JSON result.
Madama Butterfly, SC 74, Act I: E soffitto… e pareti…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c620b5f23956959419e4f3056c8edd6358aec7028dddcbe7794339b93cd3cf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421805601 — a six-check JSON result.
Madama Butterfly, SC 74, Act II: Coro a bocca chiusa (Humming Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417218d6b00c61faabde774223070068413c66fb80f267e6196ba6f6618139da. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421805627 — a six-check JSON result.
Madama Butterfly, SC 74, Act II: Un bel dì, vedremo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d8be8e22d72d5a2cab7040d49cde80ae98d0a8b6a2cd7056950d56773e876f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421805615 — a six-check JSON result.
Franz Schubert: Messe in G. Musica sacra
Magnificat, D. 486: I. Magnificat animamea Dominum: Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8d9abb7c1b556200f96740e0ede49666a01ba35d0b6f6329bd146941bf929b. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB119600101 — a six-check JSON result.
Magnificat, D. 486: II. Deposuit potentes de sede, et exaltavit humiles: Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf415c2f60d812f850aa12ff242df1693452eabb409a5e21915df252600974a8c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB119600102 — a six-check JSON result.
Magnificat, D. 486: III. Gloria Patri, et Filio, et Spiritui Sancto: Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc615d5048f1269280188d1110bc59af5f1e4aef252eec302f293985d221592. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/DEB119600103 — a six-check JSON result.
Deutsches Salve Regina in F Major, D. 379
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8b6eefc7b9f1a798aa9355b9c9746100e436c4697158205eb7fed2ed3eac96. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB119600104 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7068a4b6e8b50a6d522b87b3661d30023b7bb43d5e3c598b42524b43eb8c29. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEB119600105 — a six-check JSON result.
Deutsche Messe, D. 872: I. Zum Eingang. Mässig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72dad94996f4904cc4f38de21609b9695b1f2719c06cca9e06a7dc8f7a14c93. 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/DEB119600106 — a six-check JSON result.
Deutsche Messe, D. 872: II. Zum Gloria. Mit Majestät, doch nicht zu langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb001dbc4c37850e3851f12e1c00b49b2975875e8ff9f7a94c2fd83cfd17e4a41. 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/DEB119600107 — a six-check JSON result.
Deutsche Messe, D. 872: III. Zum Evangelium und Credo. Nicht zu langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7eaad284c568ce4e9bc8de38999a60073c140811645600c0c520b92d8b0b4dd. 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/DEB119600108 — a six-check JSON result.
Deutsche Messe, D. 872: IV. Zum Offertorium. Sehr langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf13ed95b2d55b79f3a0ca1b6aa8f36b11876dff258c66fb3c315cc5b879686. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEB119600109 — a six-check JSON result.
Deutsche Messe, D. 872: V. Zum Sanctus. Sehr langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d6fac65f8083181772e556089dd8323c93d81c137952cb0425b808d61f00c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB119600110 — a six-check JSON result.
Deutsche Messe, D. 872: VI. Nach der Wandlung. Sehr langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6782ffa17dd12285772bb41e977a8c1c79b61323ad7939aa7a62da3b79ec0c2f. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB119600111 — a six-check JSON result.
Deutsche Messe, D. 872: VII. Zum Agnus Dei. Mässig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080b2e952bbf696a25157a358941df45ebd5f27bbd35b185e58ec2a3fd4f81da. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEB119600112 — a six-check JSON result.
Deutsche Messe, D. 872: VIII. Schlussgesang. Nicht zu langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bca5e384127e4f595e9162214ba120120db53f5daa309881dfb26c99a63eca. 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/DEB119600113 — a six-check JSON result.
Deutsche Messe, D. 872: IX. Anhang: Das Gebet des Herrn. Mässig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81eff1ef7926dcdadb114f1286ab5e551e2067505d1f09d7d4722ef1e183d62. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB119600114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fad6e854632c326887821ba100bf79e2b3d91fd7842b8415f60ddc074f223c. 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/DEB119600115 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: II. Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65ec620797105be4f735f9c1c736b4df8a6e723f1b3a5dc57c4b2ccb7e1b095. 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/DEB119600116 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: III. Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cc86a4ab4892cea9da4eee261e669d1c5091aa8010bfbd36688d8920417dbc. 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/DEB119600117 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: IV. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6d47c21136dfd1523eb93f08206e8c71224a20411505cfc37d70f39d8acfc6. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB119600118 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: V. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b36b291b6b41e224c3c24656b841c1f83b64b2b7b12df3b7cc4f7e2e383bb3. 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/DEB119600119 — a six-check JSON result.
Mass No. 2 in G Major, D. 167: VI. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908b347b226db0a505e8bd684f82e795c33ecce41289ec4cfc31f977c712d859. 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/DEB119600120 — a six-check JSON result.
Stille Nächte - Weihnachtsmusik aus Europa, Vol. III - Silent Nights
Weihnachtsszene aus dem Oratorium Christus - Aus dem "Ersten Theile" - Geburt Christi, op. 97: Rezitativ: Da Jesus geboren ward zu Betlehem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6642fe43a33754537fbea78399824d9460be306d3af0a3be5c5a82ff3c163516. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ATP570654090 — a six-check JSON result.
Wagner: Tristan und Isolde, WWV 90 (Live)
St. Augustin - Mozart: Messe in D / Loretomesse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e23c5a60e560ea0cf22b21cb37db0c73bf53851233acc05198801a54c38fe2. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131104301 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217de39f120a85043230c0616dadd925b052d1002aee53a0034d95d15aea9eb9. 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/ATP131104302 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6f2a4f4a181e0a3bb80793d146b87a845e87e368d4584ef5f3ad9b558df920. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131104303 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de4030a3bb3168502c86a209582938a75555fe85393e114661e8931d7fa89b6. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ATP131104304 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71f6088fa5c56608b40ebb43981da6a93dc86fc27cb79066cf5e660d31ef11a. 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/ATP131104305 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1611c66e7e70f72bd36ef7df5f7a5d2fafd619391317e00c0e674b2ef3ca29. 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/ATP131104306 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8738942a558459bdd43bdb0a23eabbe502df9ffddfd155c20ffdf61c23e3c441. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200901 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155eae7dbc0c6743a404fb955e1437fa9521070327061b8a098c53e9a35db998. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200902 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5f1f5b00809280898e4d0dbf9ddac3d7d71c8176d5cb0bed1b159ba67f00e8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200903 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f922ccb60c3b538e25852551263768b1f42e4f2cc6aaa465e43ae44181a5e87. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200904 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffed73ac79379a7cf306a4f65044b825f2d5053d2733bb0383e664ff6f8d971. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200905 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5b222d841fe9c6abf9424ecf52afffb46906831e23cf8e4e9235ec9915424d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200906 — a six-check JSON result.
Lehar, F.: Land Des Lachelns (Das) (The Land of Smiles) [Operetta]
Das Land des Lachelns (The Land of Smiles): Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ce7aa10face804bb6fe0ee614b1c2f74cf1589b09b6c90cd35169a4d824569. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1000736 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146c01ce22255cdd22255116ac42da00376ea526b497a2740f4ad824cc3152df. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200219 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a50b828886c1ae54c6b3856ab7fe9ddca35b1ede732f6e041c4a8928407552. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP131200222 — a six-check JSON result.
Van de Vate: Hamlet (Opera and Music Theater, Vol. 6)