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 0xde4d74cd8b5c926f38c6c8081ea81670891c84767fdb3caddcccb3f71de9ef8b. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/865f4178-f421-46cb-8861-c9475b40bc16.json and https://artists.proofprofile.net/proofs/artist/865f4178-f421-46cb-8861-c9475b40bc16.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Messe, Mass No. 1 In D Minor, For Soloists, Choir and Orchestra: Kyrie
Württembergische Philharmonie Reutlingen
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 0xf66da094d13307e4bfd42265cbbce3401885a0b99e9d9fe613a2a07b22ebe507. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLN580541594 — a six-check JSON result.
Messe, Mass No. 1 In D Minor, For Soloists, Choir and Orchestra: Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98801fbb1ea2fbf63bb71a23f659a3c2e5d29481f120413f386cdfee7e8ee326. 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/NLN580541595 — a six-check JSON result.
Messe, Mass No. 1 In D Minor, For Soloists, Choir and Orchestra: Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6485fab139e74db95bd9f36425733d987f568e993961ee97bbd08c12edf44b. 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/NLN580541596 — a six-check JSON result.
Messe, Mass No. 1 In D Minor, For Soloists, Choir and Orchestra: Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd115985566a8096d315bb5056c04718e1561ed848f83cba9216718bc54ba5e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580541597 — a six-check JSON result.
Messe, Mass No. 1 In D Minor, For Soloists, Choir and Orchestra: Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82966884c985a397610489086ecad008f67a808f98cf57a9b4702b701c596e30. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580541598 — a six-check JSON result.
Messe, Mass No. 1 In D Minor, For Soloists, Choir and Orchestra: Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb4317c18c716018ef692f53a6130239871f60fbc484e8da657e99b2825d716. 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/NLN580541599 — a six-check JSON result.
Hymne, Drei Geistliche Lieder Und Fuge Op. 96 Für Gemischten Chor, Soli Und Orchester: Hymne: „Lass, O Herr, Mich Hilfe Finden“
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5300cba59906e2ced400cd4f15454dfb04ee6f68ac83fdb45a44d42caff4aa. 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/NLN580550839 — a six-check JSON result.
Hymne, Drei Geistliche Lieder Und Fuge Op. 96 Für Gemischten Chor, Soli Und Orchester: Choral: „Deines Kind'S Gebet Erhöre“
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92d38aa0566613d719b4c58f1256f9f422966e04090f4f7f5f9a9104b2b1a69. 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/NLN580550840 — a six-check JSON result.
Hymne, Drei Geistliche Lieder Und Fuge Op. 96 Für Gemischten Chor, Soli Und Orchester: Herr, Wir Trau'N Auf Deine Güte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583118bcb7ae75ff61a8c0d46448b2a2dc61c39d1fc1b521cfd812d1d97439f5. 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/NLN580550841 — a six-check JSON result.
Grosse Messe, Great Mass In C Minor Kv 427: Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad9e47160a7ae65e02b1a14f5cea63f59370276bae6a54cbb36fee59151fb95. 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/NLN580515558 — a six-check JSON result.
Missa Brevis In B Flat Major Kv 275: Kyrie
Kurpfälzisches Kammerorchester Mannheim, Nordic Chamber Choir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2304e74ebba8356b2c500ae06a02ac846eb5b45629b3b7f74a8fad3d5a509dbe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580515585 — a six-check JSON result.
Missa Brevis In C Major Kv 259, Orgelsolo Messe: Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ba522ce8c5ae72574f3e7f646d3c660a46904b5ed6adbc5ce42bd3be819dfa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580515597 — a six-check JSON result.
Missa Brevis In B Flat Major Kv 275: Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2144607d3e270a1381759c415508a90b446818aa1cb822b98456b23627331d3e. 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/NLN580515586 — a six-check JSON result.
Missa Brevis In C Major Kv 259, Orgelsolo Messe: Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98d547acc99f25099791163f83c8395367fd157c8eeb184c2c10d8a6a44bd5e. 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/NLN580515598 — a six-check JSON result.
Missa Brevis In B Flat Major Kv 275: Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb04d81b96cc2d882e5c4ac276792371c8ad40722f7fbe9a99f90930e059b3e. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580515587 — a six-check JSON result.
Missa Brevis In C Major Kv 259, Orgelsolo Messe: Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22c5dc40c6b3ae7ef9bd8d6076495b2d683c253d8e7e7f460953cb724e5d106. 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/NLN580515599 — a six-check JSON result.
Missa Brevis In B Flat Major Kv 275: Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3ba5b61ec3c1ec9f1e7c96a3fbe9b107984cb35af86020b8c8df4941727238. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580515588 — a six-check JSON result.
Missa Brevis In C Major Kv 259, Orgelsolo Messe: Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169556e740979223f3725ffe6985c6c3511df51ce68ad262a7f3a9d560d74487. 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/NLN580515600 — a six-check JSON result.
Missa Brevis In B Flat Major Kv 275: Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e733fbb2dc7b08c09fd5f0a090a0c6442af7df6aea94628a7147c6928ecdefc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580515589 — a six-check JSON result.
Missa Brevis In C Major Kv 259, Orgelsolo Messe: Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a87c394783a2c4084878f26cb5d0d4fa066f89e28c2400111925aaf706ebc8. 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/NLN580515601 — a six-check JSON result.
Missa Brevis In B Flat Major Kv 275: Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca2dceaff5ad2a7f13e7d6a9475485fcdc0b896d6a0201cd84ba790a370e346. 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/NLN580515590 — a six-check JSON result.
Missa Brevis In C Major Kv 259, Orgelsolo Messe: Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453b871ff2ba102f4be2344e68fdf6a0e700044ec41b8821d13106a8a924eb60. 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/NLN580515602 — a six-check JSON result.
Missa In C Major Kv 258, Spaurmesse: Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169c53cfe49fb78d411131ca211e7de96839ddbb26a018fe9026b9d155b5cafb. 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/NLN580515603 — a six-check JSON result.
Missa In C Major Kv 258, Spaurmesse: Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409b69b9f7b27a154cee6da7286c276ef417e8fa99987c178b11a60ee5ec0bc5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580515604 — a six-check JSON result.
Missa In C Major Kv 258, Spaurmesse: Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee14d722ba1354c66cfcf3ab96cf21fd8084be7252eee69dab4e1b7fd1605a7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580515607 — a six-check JSON result.
Süddeutsches Kammerorchester Pforzheim; Chamber Choir Of Europe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2916bda625171fc49d11f1f643dab8990fb7f9311f76aa1ea6f3044ee1af775d. 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/NLN580547952 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5103ed6a072580cc7a77ac1c665e52ef89a4a086f322f57133579df3abfb73a. 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/NLN580547954 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd589971009efaed99c5ea078be98f08545e1fd413f62a23b44467c5868cc21. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLN580547957 — a six-check JSON result.
Der 42. Psalm „Wie Der Hirsch Schreit“ Op. 42: Coro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7ad154e1c1015dba3f4dc8d56409b40af9201ddf8851d54bb62848bc67168b. 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/NLN580550794 — a six-check JSON result.
Weltliche A-Cappella-Gesänge, Secular A-Cappella Choral Works Op. 42: 1. Abenständchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad31e2996631e2c20394e26b35aae03cd438c493b12e693cfc81ddb80ddca4ae. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLN580554661 — a six-check JSON result.
Sieben Lieder Op. 62: 7. Vergangen Ist Mir Glück Und Heil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8b91bbbbb99f6225e8488879267e88f4c66ea0529b888cd6371fce46cc620a. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/NLN580554670 — a six-check JSON result.
Zwei Motetten, Two Motets Op. 29: Schaffe In Mir, Gott
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4e3fd15e8197565e7da03791d4eab4d6f3b9f02ef0f194a5642b6310d9e22c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLN580543927 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969c72343556a36c67411ecabba6bbe13346c0d766d0ddd17b4792c325be3ae0. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/NLN580543928 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9b56bbf8d096a55d6f07e1eeafbcd91c20c72f3884e9a045eb358da3ad3b7e. 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/NLN580529173 — a six-check JSON result.
Drei Motetten Op.69: Herr, Nun Lässest Du Deinen Diener, Für Soli Und Vierstimmige Gemischten Chor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56eddbe3089d08099a42aa438e6a9cdcf50e620169dd31a143fe7ac4b0880353. 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/NLN580529123 — a six-check JSON result.
Drei Motetten Op.69: Jauchzet Dem Herrn Alle Welt (Psalm 100) Für Soli Und Vierstimmige Gemischten Chor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65323c945b3d2b317269aae0cc66d6502d77c5616221c7c42369b514975a51e1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580529124 — a six-check JSON result.
Harp Concerto B Flat Major Hwv 294: Andante Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f93f701d9051d0a6a32dc3fa5b3a5691e85575aa897f86a1da288c6926f19. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/NLN580558563 — a six-check JSON result.
Gesänge Für Frauenchor, 2 Hörner Und Harfe, Choruses For Female Voices, 2 Horns and Harp, Op. 17: 1. Es Tönt Ein Voller Harfenklang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf244909d9cf5027d6fcbedd3f5c6a0c4ef3f5bd9652c65e5ec735d64247d6be4. 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/NLN580554777 — a six-check JSON result.