Hanns Eisler (6 July 1898 – 6 September 1962) was a German-Austrian composer. He is best known for composing the national anthem of East Germany, for his long artistic association with Bertolt Brecht,
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 0xd1e9eb12ae8304dae6afc3ca3e14813f6b7ab8c2bb13104945df8a351da043c4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91230606-56b2-4f44-b9ed-914d52e8229d.json and https://artists.proofprofile.net/proofs/artist/91230606-56b2-4f44-b9ed-914d52e8229d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hanns Eisler: Orchestral Music, Vol. 2 - Kleine Sinfonie / 5 Orchestral Pieces / Scherzo / Rhapsodie / Winterschlacht-Suite / Wilhelm Tell
EISLER, H.: Orchestral Music, Vol. 1 - Suite Nos. 1-4 / Kammersinfonie / Der lange Marsch (Pommer, Rogner)
Eisler: Orchestral Suites Nos. 2, 4 & Other Works (Live)
Eisler: Deutsche Symphonie (Live Version)
EISLER, H.: Choral Music (Berlin Singakademie, Leipzig Radio Chorus)
4 Stucke (4 Pieces), Op. 13: No. 1. Vorspruch
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 0x28f3ef4540898fe44dec2a56f38c66c450abf67be7fdb0d69e26e788e8a68c2a. 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/DES380010630.
Auf den Strassen zu singen, Op. 15: Auf den Strassen zu singen, Op. 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1372d376e8404d2e25b561259365632f989afa2f213bba93b55150895f31ef. 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/DES380010636.
Sklave, wer wird dich befreien: Sklave, wer wird dich befreien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02ef3a362492823a855c821dbcb9430b2401a88e8d7943a6d46fa27de17b26e. 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/DES380010646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fb4f9e042854c669d6684a80fd40407aa89693be7a1f5ae2ead88121281c64. 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/DES380010647.
Das Einheitsfrontlied: Das Einheitsfrontlied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a9d62cfbe19490169d1e7b9d5e8abfd30887cc36bed67b7ff51c77e0f4ec90. 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/DES380010650.
3 Mannerchore, Op. 10: No. 1. Tendenz: Sangesspruch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659a0aad1ba2a0c8e8992c61ff90a0ff7959ec577fbcb167723e99a1177a9f92. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DES380010627.
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 0x0d71a31534ba778957c9771624dad7542f0d6b0e2d81d313bd23f0bb87b93677. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DES380010648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8eb576972f7eae1443e240eab0862a0837d0ccaa28d66126965c568c6357c. 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/DES380010649.
Eisler: Goethe-Rhapsodie / Mitte des Jahrhunderts / Das Vorbild / Kriegsfibel
Hanns Eisler: Weihnachtsgeschichte (Die) [Leipzig Thomaner Choir, Rotzsch]
Eisler: Die Mutter, Four Pieces, Woodburry-Liederbüchlein & Litany of the Breath
Hanns Eisler: Ernste Gesänge: Lieder with piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692a9f085843c9151b316527f3b3ec8c46ac3cbfbc249f90c763176702ab1deb. 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/FRZ141202020.
3 Lieder aus 'Kuhle Wampe', Op. 27: I. Solidaritätslied
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf292c8f1f7ce26a2d4e11a68b5b44039f08fd081a07dd50ada029984d8bf23e6. 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/FRZ141202280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a04fd4b698607fe205a53938275cba025787740216b4e9d8e4491fdfce2a4e. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ141202030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866a3776e74ff72f185a00366b00c3a897936acd84382b7bb53296faa8d6b587. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEA142535503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299fdea59fe3200ea0353aad855049b57586a0f93e6a455bc9e3b0f39235101. 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/DEA142535504.
Klavierstücke, Op. 8: No. 2, Kräftig, energisch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b12345b6b49bf9d66f6b00c5e37e0e021c52f69ab208b0a74a82cc38f5a4a28. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEA142535505.
Zweite Sonate für Klavier in Form von Variationen, Op. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6819837f73e3a8fca7ec9187a036f5daad2daf685f875c168a82126904731779. 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/DEA142535501.
Hollywood Songbook: No. 1a, Der Sohn. Wenn sie nachts lag und dachte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a37d0fbd6e8e92fa054389fe3e73161aeb5075d0c3dfde4703601a32cbcb6f. 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/DEFG22364501.
Hollywood Songbook: No. 1b, Der Sohn. Mein junger Sohn fragt mich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ffc5961f71623833ac43b2eb1db5c4fdb76a753135b7b9372547312278393f. 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/DEFG22364502.
Hollywood Songbook: No. 3, An den kleinen Radioapparat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f0165d12913910e72dd4905ab3323860e1929947ffc81f1193b972235564ae. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEFG22364503.
Eisler, Brecht & Finzi: Marie, weine nicht
Nuit et brouillard (Original Motion Picture Score): Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda69ed91207826310e9f2b2347e6bb3eb3b28a21eb8e94caa32e676ee117548. 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/DEB261902234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d795a3204b28d600e5a0cd24b4ef66aeeffd7ceeb9f72b6db14d7941e309ae. 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/DEA141704005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7394123ae7af8607f29ad5d9f414609c0475499a0be09dd32885f66c7fa22e1. 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/DEA141704009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cd8937a2e45a6b42e85fa9a5cd8290719b1ccd40f1cc9d7962f42f23724359. 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/DEA141704013.
Neue Deutsche Volkslieder: Es sind die alten Weisen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c433b2d7b98383d7eb2ec9707d17c50f6940d852cd13a68c7797e75a503b1d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEA141704023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9913d23e258f87e727ad14fc0c4057068f1dad64d19649f0dd732f97784629. 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/DEA141704039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e979db0f337f3bda489118352ea59d701e6dc0494a339f11300b8440531e6b5. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/DEA141704001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4723f3be7364f918df765c24503146c84cb4ca3a472f94441e18dfe0ce1e1c61. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEA141704002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bf0fd80db6c737682529115bec30755f96d1dafdeaf1a2d8152b192fe75363. 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/DEA141704003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb417c09a703038c9e801658d0ccc7f114ee97880e4ee4a7b849359a9a392101e. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEA141704004.
Tucholsky-Lieder: Ideal und Wirklichkeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3fce1f734eb23c8ab3d3f250bbd46077e123250b0e7c1de499cdc0ed6ffce1. 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/DEA141704006.
Kinderhymne: Anmut sparet nicht noch Mühe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f07f7ab396e2f5a78ad27e07c12cf67fe5c11e276b39ee911261014b5c3d24e. 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/DEA141704007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5526fb3c16ed9066a2db60ad18c133c22127a69ea096e01083e61d1a1a17f41. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEA141704008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7c314a0b7e549d982afb7606984862a6559000945fd0531461f452ae4e8c6c. 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/DEA141704019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568861d90b3d716dbc56ddae5b9884531edfd868b8335fd91cd89411c8f7ffd0. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEA141704020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d7564da476ca34a8167d759b20117c4b0e06ab32c30b02409322909dc46044. 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/DEA141704021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6853d51957fbbd99f24791b7de87a1ac23978e823bed2ec2aee0b729b1db37. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA141704022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26c8f4736e181347904202b1465cb85459d486d6bd903fc5f4959eb9f066391. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEA141704030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b15179b0588246a93f4827496fe1ea79437e60d1e7002f7586035bb6d88ff3. 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/DEA141704031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda4c7ebab702af065b61d496d9b170a8d94711c378315a6c22401c5d579b549. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/DEA141704032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803f6bd56943295fcd1c39704f46273e1d8936111ef1f79a281169cab99bbaa9. 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/DEA141704035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3561f235db474fe87ee25906744bee9e9f14da5a7cb449f42acb35e2e5edfc10. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEA141704037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52904f271edd5be427d686e7c76833abd9fdd97d68c3a7e7e02b1c514a04f17f. 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/DEB690668203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48e6476007d4303628917f4e0ca788e274ff26ddcb3dcebfa3aaed140d31617. 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/DEB690668205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f50d5fb0c56ca9ec7d45c4f627fcbd4574d72c312658fbbcf7a2720c98e996. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEB690668208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c97e36fdc331f2083da8359ffe1f4f22d7e230e4a13ea4fa81a5b7685b52ab4. 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/DEB690668211.
Musik: Die Internationale (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e2e757974a990cfda45c8a908d759a990f04b461e4d7427b8887ebe614613a. 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/DEB690668201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b4eaae8899ff2905b41eac1e51c9616bddd1bc13a0eb99604e8f794395cbc1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEB690668202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e942339bda50fac69b3e5ab8d504ea896144d56c53f03ef7f9f9be27938727b. 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/DEB690668204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2ff21c4e20ace2db4a981043534ed4db0377b07fef17b4e452a9891419aebe. 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/DEB690668206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98e9b6f0a5635da95e6c1b9bbf08203489c7b0f702f12fab214349d15df055f. 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/DEB690668209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf2fb692d2b0f98bac2868d29a914a3495b3bccb3d07debb300de80dda351ca. 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/DEA141700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2138152a034a0ca00b115cb1d6b35c937edbbbcd0cea98963b731be77a42cb2d. 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/DEA141700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef31a9c9e5c728655f489b3a61344e67ba69edf715b892f37ca2da6982a8a43d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA141700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22aea1a985574319671a374ccbe12a1e3649f0d6875c7fb5aed59820ddfeaaa. 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/DEA141700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6ab20ee713d7d9ca9034f7b5ca329f391f0836536c79470ff70f94a7540d0c. 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/DEA141700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb431a05a626c0c55a392ef44724b811bb8d94690f2256a02016670b248c8ad24. 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/DEA141700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cbaa04f5b4e6a81dccdb89d77c687d8b4e4082fe47433fa605b6da07c827bc. 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/DEA141700127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64435387e247504e8ce1d64ad5b65fc00a6d4ab87552b5b1425af20bfcfca37f. 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/DEA141700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8bf703635a1603a06a0e2ca4892c57577d7b73eb3a04cca5b5679b309f0a5f. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/DEA141700102.
Lied von der belebenden Wirkung des Geldes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e433661cde0030dddd6f653de84dc2e7e1d638f93511d6d87f72958a13dc61. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA141700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7ce185f94ba6b9c3339e454d33bbcd34010d90b81704b1c5f724d13d27561b. 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/DEA141700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0ef6101632b1606e6e4862a4390b4d5d7b9f400878e756502c5ff1c0988e7f. 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/DEA141700109.
Torsten Föllinger singt Musik von Hanns Eisler
Eisler: Piano Sonata No. 2, Klavierstücke für Kinder, Op. 31 & 4 Klavierstücke, Op. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d2d21324fd7356c307790874c76d1b99fe19e0187c3abedc64630a50e450e7. 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/NOX9X3416401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729227bb2940a86f1f89bf3d05919e87fb62ec4b99a3345604590743e37c9407. 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/NOX9X3416411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e0426ed412f9756638e64df5d0cf88c10fd57ce6dcf7e5ea838467a82a801d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:07:38Z), 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/NOX9X3416419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8389b29fc3170596b2fd95e72d33ed486285b5cb4411896a9c7fb903072352c7. 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/NOX9X3416406.
Eislermaterial: Und ich werde nicht mehr sehen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb7c128dd6589b0e19afc3fc6d830b911fb37fb0f668ffcdbd2ba02a393013f. 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/DEB339877904.
Eislermaterial: Vier Wiegenlieder für Arbeitermütter I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1abe6ba2da8b237c8e410e529aef839d7a7f0249606265a92b1f23eb8a1de3. 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/DEB339877905.
Eislermaterial: Vier Wiegenlieder für Arbeitermütter IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f4fb5f12ffe3e03f1d9d57bfaed3611102f77bf7b79c952bac83722fb5dc7b. 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/DEB339877908.
Eislermaterial: Anmut sparet nicht noch Mühe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35dd3791e3930358d9b813d17dfeb3b780949f9165cc83fa78275da0e10188a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB339877901.
Eislermaterial: Vier Wiegenlieder für Arbeitermütter II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4791e82a58c08c5a7fddfdd04d0359000fc4ca37c253a0940a55de3262491d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB339877906.
Eislermaterial: Vier Wiegenlieder für Arbeitermütter III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf5a679470139ace3392a989b0193ace61747a270fbd43733e16ade5377c6a7. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEB339877907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cc905bdf49e24fd11428b2edcb81c5c0db2324f32ff8c40a061205070c657a. 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/DEB339877918.
Eisler, H., Brecht, B.: There's Nothing Quite Like Money
Eisler: Das Hollywooder-Liederbuch (Wolfgang Holzmair – The Philips Recitals, Vol. 10)
Eisler, H.: Kleine Sinfonie / 5 Orchestral Pieces / Sturm-Suite / Kammersinfonie
Die Rundköpfe und die Spitzköpfe: Lied von der belebenden Wirkung des Geldes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4101ddf39ac68db4bafc5115c7c30e54f4992160c9a521fb69976e8917af1cb2. 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/DES380004185.
Schweyk im Zweiten Weltkrieg: Das Lied von der Moldau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a31450eaa6635c35a10c1e782bb63e38e85c10da81c205426c72fdcd60ab795. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380004191.