Justus Zeyen (9 June 1963 – 21 December 2025) was a German pianist, especially an accompanist of lieder, and academic teacher. He was a regular pianist with Thomas Quasthoff, including acclaimed recor
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 0x22f13b32e6d0d9c2f2e0553d65aa09c4aaf2b358dc98aaf3ea04638f377839c4. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73635a3c-7b87-436c-9b67-30e971a286ac.json and https://artists.proofprofile.net/proofs/artist/73635a3c-7b87-436c-9b67-30e971a286ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wagner: Der Ring des Nibelungen, WWV 86 (Excerpts Arr. H. Behn for 2 Pianos)
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 0x3f0911799d4e271f05156ad844746549c307f679e2b98eb439be466446d2ac8f. 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/DEN960531107.
Die schöne Müllerin, D.795: 15. Eifersucht und Stolz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ff2000056b9c258f324312c5615ed947fd37132a4721a799a316c5eda5ddd8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEN960531115.
Die schöne Müllerin, D.795: 19. Der Müller und der Bach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec2eec989b00be8af781d5324b7558d8c2a68ceee06f123e6d52097268a052f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEN960531119.
Die schöne Müllerin, D.795: 1. Das Wandern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc325871efa58af9bba6b4f6a4f1cc6ed01a18b62b95c7f4dfc61936bfd086a95. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEN960531101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc062e197aaec9ca1c4fbc80544b15e4e603e3e0e58e1a27a2ada21e33d1c702. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960531102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e92d2b2f5e8da74ad28819aa50415d447818656534e2983d1e26f2eeb9a03d1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960531103.
Die schöne Müllerin, D.795: 4. Danksagung an den Bach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb1ea5e9b7cac53c7c8b241b36a96cb3204da3dee30490388d329ece41d79e2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEN960531104.
Die schöne Müllerin, D.795: 5. Am Feierabend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f714780f1ac26844a7da91e225facce192e09f934e319e981bf0d18466b1a3. 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/DEN960531105.
Die schöne Müllerin, D.795: 6. Der Neugierige
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5255f06054c5cc4cd92ad2d47348dbac82283229e883f935f481671927c36709. 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/DEN960531106.
Die schöne Müllerin, D.795: 9. Der Müllers Blumen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68314f617186df93696ce4e7463385684eb000f12de8403e3235e21fec7bc2c3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEN960531109.
Die schöne Müllerin, D.795: 10. Tränenregen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f038aaf802f9a82987090b58b642e426822b36c69048fa0b9432923462498e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960531110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757b3422c8d66d5678b7b94b5b4cf10e8a966187fa8adbdb3b35f1b3a3824f84. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEN960531111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47143f1104ba64db0b92cc536b6136381a6dea58532fd9464d84b00d1d7a743b. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEN960531112.
Die schöne Müllerin, D.795: 13. Mit dem grünen Lautenbande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d66e67f449df76a9fde0f5916e58b50372c5df36d433cfd9ba48f493c200e1a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEN960531113.
Die schöne Müllerin, D.795: 14. Der Jäger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf553ab7497dae83216092b37a5ae5e9d8db33ec1aacf2fc45f8c7cc72a8caf91. 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/DEN960531114.
Die schöne Müllerin, D.795: 16. Die liebe Farbe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b33e887d606f0c475f01ac5f3ba58dc49737166a8d4cc9a64b8601ce506be89. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEN960531116.
Die schöne Müllerin, D.795: 17. Die böse Farbe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd9f1fafae33e14e87a89207e2a4401c8904c027ffa4f474b08d2b0ddd7d693. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEN960531117.
Die schöne Müllerin, D.795: 18. Trockne Blumen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0a7d3b7b006083ff1857464d91dd1d9be72520e9fd755c8654cbc8e07a2955. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960531118.
Die schöne Müllerin, D.795: 20. Des Baches Wiegenlied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884e81f9c5dccaf355de6af93d354db578e03da6cf9a7403c3e6aeb41179d2d8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960531120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6486742294b17c95e1b1297ebcf5fd4dc25d53aa8bdca676bba47d235d5ba619. 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/DEN960300851.
"Du bist wie eine Blume", Op. 25, No. 24
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6ce1d3e49f5781092bccc197022b0a41912e5473416ab28e5d97a22d92daec. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEN960300854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66415b2ceacfe70558eae8b22c241ce84a704e56f47eefd8c0026bd2d384154. 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/DEN960300891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812499ee65b8b25e8915d9373ae13e59c2da422c09a2cddd4177c6be20a01530. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEN960300841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1346bbda434594a26f8b0b3c0d166cb36503d20837e99a92323df59cc4df2e44. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEN960300845.
Myrthen, op.25: 1. Widmung (Text: Rückert)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c8a1de482e6ce5927f35837e0ec057184462efa6094852385e0c4154cec234. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEN960300852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5c6c22911764b76ff828ad5f3a4088883350b40365dc1856fedbb97c2fc8db. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEN960300892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4c7c369840cac9bfd837705e6bf8e1d3271779cda9762cd1dc46c70aedf762. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960300894.
Schubert: Schwanengesang D. 957 / Brahms: Vier ernste Gesänge, Op. 121
Schwanengesang, D. 957: II. Kriegers Ahnung: In tiefer Ruh
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba73e65ade1ea2cc34663bc292d365475779a6da6697f0ef1d8c6187aa298ada. 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/DEN960030902.
Schwanengesang, D. 957: IV. Ständchen: Leise flehen meine Lieder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caffb7f65332c5b50a4e7390854d4119237f8aba88b39c687aa44a3648a89f3. 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/DEN960030904.
Schwanengesang, D. 957: V. Aufenthalt: Rauschender Strom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a94d4d691d0f9cc77dc477a68012725aab65d476f449dd21670100c5dfb268f. 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/DEN960030905.
Schwanengesang, D. 957: VII. Abschied: Ade du muntre, du fröhliche Stadt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9085b7136555aa50c772012ea95a6dcb3452b70826c3a944f38d9af9c6d25443. 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/DEN960030907.
Schwanengesang, D. 957: X. Das Fischermädchen: Du schönes Fischermädchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbe75cfc7eac6575d642e2d5d394144f80068e1cb17526af47386f5c97adc6f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960030910.
Schwanengesang, D. 957: XIII. Der Doppelgänger: Still ist die Nacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1ab77b314b2e9ab2f082653924889c775ea8f2682d018bb07eac9bd7a2e695. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN960030913.
Schwanengesang, D. 957: XIV. Die Taubenpost: Ich habe eine Brieftaub (D. 965A)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe5e26aa3fe066c1c4103d65e2d1eb86acc50433f5e33d56e2809f41845d69a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEN960030914.
4 Ernste Gesänge, Op. 121: I. Denn es gehet dem Menschen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c5a2093a9862072fee77527127ec1a396b082eea3e8dc148bdb5aaabf2ca2d. 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/DEN960000541.
Schwanengesang, D. 957: I. Liebesbotschaft: Rauschendes Bächlein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1eba4eff478ef73cc09c691f24a22ab9bc3b685ff6272ee14ebd2c8cf4de58. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960030901.
Schwanengesang, D. 957: III. Frühlingssehnsucht: Säuselnde Lüfte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c66447673b779304d07aec273ec4db537f463211baf13acdc8379fab52867de. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960030903.
Schwanengesang, D. 957: VIII. Der Atlas: Ich unglückseliger Atlas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c8fdd8aa7eb2ab083c05fe16a22cebf154fc6793b9d4dc092dd14ecd0d2044. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/DEN960030908.
Schwanengesang, D. 957: XI. Die Stadt: Am fernen Horizonte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e0db1d8a1ad5461eaf04eb59e6b9ab2541f98931a86d4867369af7a0c6ebf9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEN960030911.
4 Ernste Gesänge, Op. 121: II. Ich wandte mich und sahe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc01a0c3ce30a8ff2c8dd187cd52b39ca389d6892369025e3f3b170dec62f1b6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEN960000542.
4 Ernste Gesänge, Op. 121: III. O Tod, wie bitter bist du
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d30381dd3653c1aa5c4011d5132beaecbf7b7f2663f51ea411197c0692f204. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEN960000543.
4 Ernste Gesänge, Op. 121: IV. Wenn ich mit Menschen - und mit Engelszungen redete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b242ac4fc8885b03a02a21a51fef5b79f3e0d6576a82721561be41d2cc6110d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEN960000544.
Lieder und Gesänge Op. 32: 2. Nicht mehr zu dir zu gehen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac8adc1f7ac32963ba257488dea0f0b179769a3d85c989b5b9248fa79ed7bc4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEF059904120.
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Lieder und Gesänge Op. 32: 1. Wie raff' ich mich auf in der Nacht
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Lieder und Gesänge Op. 32: 7. Bitteres zu sagen denkst du
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Carmen, WD 31 / Act 1: Prelude to Act 1 - Excerpt
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Six Songs, Op. 34: II. Auf den Flügeln des Gesanges, MWV K86
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String Quartet No. 14 in C Sharp Minor, Op. 131: II. Allegro molto vivace
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Piano Concerto No. 21 in C Major, K. 467: II. Andante "Elvira Madigan"
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Estancia / Danzas del Ballet: II. Danza del trigo - Live At Centro de Acción Social por la Música, Sala Simón Bolivar, Caracas / 2008
Simón Bolívar Youth Orchestra of Venezuela
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Pavane pour une infante défunte, M. 19 (Version for Orchestra)
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Peer Gynt, Op. 23, Act IV: No. 13, Prelude. Morning Mood
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Le nozze di Figaro, K. 492, Act II: No. 12, Voi che sapete
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Winterreise, D. 911: No. 5, Der Lindenbaum
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24 Preludes, Op. 28: No. 3 in G Major. Vivace
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Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
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Suite No. 2 in B minor, BWV 1067: 7. Badinerie
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6 Bagatelles, Op. 126: No. 4 in B Minor. Presto
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Symphony No. 88 in G Major, Hob. I:88 "The Letter V": IV. Finale. Allegro con spirito
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Lucrezia Borgia / Act II: "Il segreto per esser felici"
Filarmonica del Teatro Comunale di Bologna
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Carmen, WD 31, Act I: Habanera. L'amour est un oiseau rebelle
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Pictures at an Exhibition (Orch. Ravel): II. The Old Castle
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The Well-Tempered Clavier, Book I, BWV 846-869: Prelude and Fugue No. 1 in C Major, BWV 846
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Violin Concerto No. 2 in E Major, BWV 1042: III. Allegro assai
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Enigma Variations, Op. 36: Var. 9. Adagio "Nimrod"
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Orfeo ed Euridice (Orphée et Eurydice), Wq. 30 - Vienna Version (1762) / Act 3: "Che farò senza Euridice?"
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Dvořák: Rusalka, Op. 114, B.203 / Act 1: Mesicku na nebi hlubokém
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The Classical Voice: A Celebration of the Classical Voice
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Sleep: 111 Klassische Werke Zum Einschlafen
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Arioso (Adagio in G) from Cantata BWV 156 (Arr. by Lloyd Webber)
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Nocturne No. 2 in E-Flat Major, Op. 9 No. 2
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50 Great Pieces Of Classical Music For Summer
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Der kleine Hörsaal - SINGEN mit Thomas Quasthoff