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 0x2e7cf1968df622772b1e10dfadf67b0beaae177174b867e1dee40e85e828c4e4. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba8ffecb-af05-400b-afb1-6224f28d59a6.json and https://artists.proofprofile.net/proofs/artist/ba8ffecb-af05-400b-afb1-6224f28d59a6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Weber, C.M. von: Missa sancta No. 2, "Jubelmesse" / Schumann, R.: Missa sacra, Op. 147
Missa sancta No. 2, Op. 76, J. 251, "Jubelmesse": Kyrie
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 0x34382d9597fd50cd0e2b6b7c3351c7cd5dff20a410cf24b9928a5b269c95f85a. 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/DEB261201435 — a six-check JSON result.
Missa sancta No. 2, Op. 76, J. 251, "Jubelmesse": Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48123989f911d98102a467efc7138a326e3a88b9a88ab93e9ed45207f7ef55c1. 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/DEB261201436 — a six-check JSON result.
Missa sancta No. 2, Op. 76, J. 251, "Jubelmesse": Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d9310d4e8e75998ab2bcb997fb8b24328f449e85b32dc452e266cecade6393. 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/DEB261201437 — a six-check JSON result.
Missa sancta No. 2, Op. 76, J. 251, "Jubelmesse": Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e0e90d75857f48d897cd6bcb2a8b1c25753c155167a9b5d0bab37b026b5da7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201443 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110902b5e76b2c2f10e4c55d767b6f7500d94b46b4e40cff69ff672c3842520a. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATPD50900131 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0348f8a7a9a49c31ffb62913213debec0f230c2187a60a7e31b573d8aaf7de18. 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/ATPD50900132 — a six-check JSON result.
Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6b48db6e154ce7edca37ab39561695f6d627f111328e9a802c265cac8d886a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ATPD50900172 — a six-check JSON result.
Ellens Gesang III (Ave Maria!), Op. 56, No. 6, D. 839, "Hymne an die Jungfrau"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88af74a304c5219a399966ead49f33ca7b82502f6d5d596cc74516550d0b3527. 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/ATPD50900133 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1b9a99555756a076b59210949a3d8cfc2ca38191e1e5af942c4b0768e05d08. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATPD50900142 — a six-check JSON result.
Wolf, H.: Fest Auf Solhaug (Das) [Opera]
Opera Arias (Bass): Hawlata, Franz - Gounod, C.-F. / Spohr, L. / Schumann, R. / Meyerbeer, G. / Mussorgsky, M.P. / Boito, A.
Bruch, M.: Weihnachts Musik (Christmas Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebba122050f271625d8215d2bb1f123b9239356a587d665195df4ccd73afa271. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEAD60803602 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b250cf900776160973ef1f46cb7d0a960456ae330b2f59c89d2ca31fbae8e84. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300071 — a six-check JSON result.
Die Fledermaus: Act II: Ein Souper uns heute winkt (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbeb611fa1c6a6da869366876ea3bc5c6d37ff8ae6ffb2c91996730f8227e64. 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/DEB261300078 — a six-check JSON result.
Die Fledermaus: Act I: Taubchen, das entflattert ist (Adele, Alfred)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda78e4c8229214a08c988bfdaa99acb39361647e6f2fd30901b690fbd7c22d4a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEB261300072 — a six-check JSON result.
Die Fledermaus: Act II: Ich lade gern mir Gaste ein (Orlofsky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62acd136fc4167f337fb3d5e3377a5adac60a70694584878181468d10c8a64e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300079 — a six-check JSON result.
Die Fledermaus: Act I: Duettino: Ach, ich darf nicht hin zu ihr (Rosalinde, Adele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8144ebbc743653acd30e8227cfeb18f8c2030fb7a8ea686cdefb8ec6325e27. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300073 — a six-check JSON result.
Die Fledermaus: Act II: Ach, meine Herrn und Damen - Mein Herr Marquis (Orlofsky, Falke, Eisenstein, Adele, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c3b820936f448dedc1acc36029c6357954e758b2fc18259a0501b7d93bf9f7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300080 — a six-check JSON result.
Die Fledermaus: Act I: Trio: Nein, mit solchen Advokaten (Rosalinde, Eisenstein, Blind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc410661e34cf5016459ef76440bd9538b7dfeff9384a2a507afc9a56321c7c. 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/DEB261300074 — a six-check JSON result.
Die Fledermaus: Act II: Duet: Dieser Anstand, so manierlich (Rosalinde, Eisenstein)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa609497d68a9b6378e24e6a161d9627077b5f305988c8dfc684ac2b477f24b. 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/DEB261300081 — a six-check JSON result.
Die Fledermaus: Act I: Duet: Komm mit mir zum Souper (Eisenstein, Falke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00658089d930429b5687ddd9a162216825f8a595fa28e2c38e7fce59d0c5c16. 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/DEB261300075 — a six-check JSON result.
Die Fledermaus: Act II: Klange der Heimat (Rosalinde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e42643536961e298bff6475d0ead2dee0af78ce19d3e035ba77a51b62e0c2b2. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/DEB261300082 — a six-check JSON result.
Die Fledermaus: Act I: Trio: So muss allein ich bleiben (Rosalinde, Adele, Eisenstein)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c747b192c0b6d1ee4bbb25a7bfdba157dfeb9e5f609f4e43d86255ebaae637a. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEB261300076 — a six-check JSON result.
Die Fledermaus: Act II: Finale: Im Feuerstrom der Reben (Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a15de1d99965ff8a0cc4f3939fa3554a5fa97d55f2ea3e8ac49705cd960bf3. 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/DEB261300083 — a six-check JSON result.
Die Fledermaus: Act I: Finale: Trinke, Liebchen, trinke schnell (Rosalinde, Alfred, Frank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee3695f74cecb69f9908047e9e14572ddf1c2ec8d8a8740851a21424ddfa5db. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300077 — a six-check JSON result.
Die Fledermaus: Act II: Finale: Herr Chevalier, ich grusse Sie (Eisenstein, Frank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5654ad78ab6c174601fb61da71c6076b2dbacb735ca0c5745faa2505e003e68. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300084 — a six-check JSON result.
Die Fledermaus: Act II: Finale: Bruderlein und Schwesterlein (Falke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b39183004c506b0a602abd7fc9c5d3d537e6195540a8d2764304fb31be6eda9. 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/DEB261300085 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eead303ba27e47dbf238e6f2c9e0554bfe4bfd366a94e248132385cb57f28d7. 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/DEB261300086 — a six-check JSON result.
Die Fledermaus: Act II: Finale: Genug damit, genug! (Orlofsky, Eisenstein, Adele, Rosalinde, Frank, Falke, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85c688b78e7b89cde5cacbeb4acc2d295a3c62da2669526c926a14703488618. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300087 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54130851036cd11a481f040427ca50299e30b283419e5cadb40b2ec46e16835. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEB261300088 — a six-check JSON result.
Die Fledermaus: Act III: Hi, hi … da bin ich ja eh richtig … Mein Kopf! (Frank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644532759e11c6543212de5ababcbb3130517ade294859991a37b102d8355441. 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/DEB261300089 — a six-check JSON result.
Die Fledermaus: Act III: Spiel' ich die Unschuld vom Lande (Adele, Ida, Frank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9feb7524afb82a292e2d21508556fd2674c5befb95994bd70108370e299042a1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEB261300090 — a six-check JSON result.
Die Fledermaus: Act III: Trio: Ich stehe voll Zagen (Rosalinde, Alfred, Eisenstein)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c08d7457a2cd3239639aa9661c0254e01f9f9d0526956e30d9d31944cbaae5e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261300091 — a six-check JSON result.
Die Fledermaus: Act III: Finale: O Fledermaus, o Fledermaus (Rosalinde, Adele, Ida, Orlofsky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289a58cae46d90670d3a287c618408a35ec6b3cf28998cde120af38cc707a4d4. 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/DEB261300092 — a six-check JSON result.
Carl Maria von Weber: Der Freischütz, J 277 (1955), Volume 2
Carl Maria von Weber: Der Freischütz, J 277 (1955), Volume 1
18 Liebeslieder Waltzes, Op. 52: No. 1. Rede, Madchen, allzu liebes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884f888a23c0e03e918c9d243dbf0c0880836dd33dcedc97d14dfc26f6d32d40. 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/DEGF70830401 — a six-check JSON result.
18 Liebeslieder Waltzes, Op. 52: No. 2. Am Gesteine rauscht die Flut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdb7a49ebf04e62faa1639c913391faa914fa88a0da3fb34633ec1c0ef81ddd. 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/DEGF70830402 — a six-check JSON result.
18 Liebeslieder Waltzes, Op. 52: No. 6. Ein kleiner, hubscher Vogel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c781094422208e9fb06fb62f93972544fe94d593b80deda0d2fbb4ba0bd714. 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/DEGF70830406 — a six-check JSON result.
18 Liebeslieder Waltzes, Op. 52: No. 8. Wenn so lind dein Auge mir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678e891b680df4f640db5e8bf3644ac3fe5c62f74f7da2dc79582f7f2a4bb928. 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/DEGF70830408 — a six-check JSON result.
18 Liebeslieder Waltzes, Op. 52: No. 9. Am Donaustrande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56552027663cdcd799cb75de4d78ff2762e0e931d1875701609b93f969dd41bc. 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/DEGF70830409 — a six-check JSON result.
16 Waltzes, Op. 39: No. 15 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0523897e948b2b92ca0cfde1e2b4c53f8dd809e9911d089352e49c81d76b3ba. 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/DEGF70830433 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6fee4243190d3dde375fe90837e16bf2b90c5cebb9e6865a9ce8f7db83a80e. 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/DEB261201582 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210e144100917972388873413a6223496a28d94882d373d4f00424afb850eb15. 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/USB8U1014761 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c64e46a104b303b988eec3b07f481da5246d178d702db1892dec0cf8c3c4f5. 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/DEB261201522 — a six-check JSON result.
6 Lieder, Op. 50: No. 2. Der Jager Abschied
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5618bfcf51b3c7659ef21a04af3d5ea2f5b8185fb70ac6479a6f27c6aeb5c8b9. 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/DEB261201515 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3578cd9ea39e249e3997063634fcf02b021bcaad4a75b156f037b227de404244. 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/USB8U1014763 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5138ea23dd4ade7e6ea6ac6fb735a4f6c63a9b185614f41b75ae8453b877e38d. 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/DEB261201514 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd7cf014d691ea35f1bc0bb376dbf0c7705fe2a0ce18baf15ec03358d84150. 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/US2TL0905804 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a601104f647d8ace8b4ad4d32c7b8d17a75d71f57c5d1e7e4862b651df3237b. 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/DEB261201524 — a six-check JSON result.
5 Humoresken, Op. 84: No. 3. Das war das Kloster Grabow
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c55e47c584a982d13faf69d451580ca034352c68856f0e7e2d0e7d5c05abf5. 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/DEB261201504 — a six-check JSON result.
Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784451057ddc6dea8868337722452a0f45251498b19b557f5d3cb8461effea31. 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/USB8U1014777 — a six-check JSON result.
Vesperae solennes de confessore, K. 339: Laudate Dominum
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8494cd2c2dfe64d729156ecb8c639f64ee72bee0115f02f62984a4eb2f30d368. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0905809 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8eafefb93b3faaaf0cc14736f37092400a8b4f76505b8a8b4adb2d102fdb9c9. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201513 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367e115a6a5c71c500699a556ad1cdc1bb3f0568d5ee5a220fbcff9d36cfd9d7. 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/USB8U1014894 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d4e5eafe86f5330f9dbb9c72a473d79383907d1303bab5ec53fb629dc94781. 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/USB8U1011255 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63652a11d99b6e29d46a19d0d22a731f1671face6e97b462c63affcfdba7c679. 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/USB8U1014766 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f00369ebb9d24166fef7666308975a48f446677bd4b3834a306d2930af9da05. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014753 — a six-check JSON result.
3 Motets, Op. 39: No. 2. O praise the Lord (Laudate pueri)
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6 Songs, Op. 48: No. 4. Die Himmel ruhmen (arr. for male choir)
Carl Maria von Weber Men's Choir, Berlin
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Deutsche Messe, D. 872: Zum Eingang: Wohin soll ich mich wenden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb419829a633a971be8dde2308603c1de23ddff14fcbc2ad83c7fcdb48e70d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014755 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf134f9dda589107472c57a8b3ef280d0ba47f6f52bfbca933c35e66742b6a778. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201585 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae912066d379f2c732cdd5ca301b082d3fe99aed32a7e325931b687599d0c19. 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/DEB261201502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53c2f99ae3e56c4931914510fd0cad3dd37c9d6200954188d78800e82701fe0. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USB8U1014757 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19bae38d94210b5f01e076fa2f95358ec464d9afa9c5594b957075fc14c058c. 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/DEB261201539 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50605d0964f34520ee83472ebf3a4effd068d7d0c707b79836d13819680a78f7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261201509 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a86204237776fdd9aa4b069131676fde2a0ec683ecbcd24304ac97a2ee9125. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USB8U1014760 — a six-check JSON result.
Ave Maria, Op. 533: Nun ist der laute Tag verhallt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a6eeb8660c21e967176390d54d970ac2c60096683725e75cf7e5004e8d7ee5. 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/USB8U1012563 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a969a4b687bd473b0989486a5736998cc91a917e67209ccd028f30c0c3e487. 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/USB8U1014772 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4650d73ed134d20d557a695845ed25cfefa025389ca6f2eb17989e10c195bae. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD60900401 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10697096af6b5fbcffdccdd38649793d6939de4973b864107b767a71f68477a7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD60900431 — a six-check JSON result.
Lohengrin: Act I Scene 1: Hort! Grafen, Edle, Freie von Brabant! (King's Herald)
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Lohengrin: Act III Scene 1: Treulich gefuhrt, ziehet dahin (Wedding March) (Chorus)
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Lohengrin: Act I Scene 3: Nun sei bedankt, mein lieber Schwan! (Lohengrin)
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Lohengrin: Act III Scene 3: Heil, Konig Heinrich! (All The Men)
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Lohengrin: Act I Scene 3: Durch Gottes Sieg ist jetzt dein Leben mein (Lohengrin)
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Lohengrin: Act III Scene 3: Mein lieber Schwan! (Lohengrin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcde58f20b40b4e08ce2792bb7a37dd9eb6b4b98d670b5a70ad8dbc0efc43350. 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/DEAD60900443 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ccf5ad956626e92c8ca50fae37053b5a689d28044861b541270992025413c0. 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/US2TL0938301 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9932f1ac45767331136fc37c4d23a3661f2e1b6df85b35ae0dbc8466d15ee94b. 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/US2TL0938314 — a six-check JSON result.
Composers In Exile - Zemlinsky, A. Von / Schreker, F. / Schulhoff, E. / Ullmann, V. / Hindemith, P. / Schoenberg, A. / Milhaud, D.
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Duo for Violin and Cello: II. Zingaresca: Allegro giocoso
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String Quartet No. 1, Op. 5: I. Rhythmique
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String Quartet No. 1, Op. 5: II. Intime, contenu
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String Quartet No. 1, Op. 5: III. Grave, soutenu
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Kleine Sinfonie, Op. 29: I. Thema mit Variationen
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La vie parisienne (Parisian Life): Overture
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Chants du soir: Au bord de la mer (arr. H. Geese)
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Midnight Lounge - Chill Out Classics and Meditation
Nocturne No. 20 in C-Sharp Minor, Op. posth.
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Choral Music (Sacred) - Handel, G.F. / Mozart, W.A. / Haydn, F.J. / Beethoven, L. Van / Bach, J.S. / Mendelssohn, Felix / Bruckner, A.
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Lobe den Herrn, meine Seele, BWV 143: Chorale: Du Friedefurst, Herr Jesu Christ
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Great Composers in Words & Music: Antonín Dvořák
Hoffmann: Missa, AV 18 & Miserere, AV 42
Schreker, F.: 5 Gesange / Ein Tanzpiel / Festwalzer Und Walzerintermezzo / Schwanensang / Fagea
Mozart, W.A.: Clemenza Di Tito (La) [Opera] (1955)
Classic Moods - Mozart, W.A. / Silcher, F. / Schubert, F. / Mendelssohn, Felix / Haydn, F.J. / Bruckner, A. / Brahms, J. / Bruch, M.
Castiglioni: Altisonanza - Le favole di Esopo
Holler: Topic - Horizont - Mythos - Schwarze Halbinseln
Classic Moods - Pergolesi, G.B. / Bach, J.S. / Handel, G.F. / Bach, C.P.E. / Mozart, W.A. / Haydn, F.J. / Donizetti, G. / Mendelssohn, Felix