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 0x645030fe6e58beafdf6adc1cab064c6646b76661470f40ce200f7a22731d3cc4. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e30dc3b-2432-48da-8cfa-b2429d98ea02.json and https://artists.proofprofile.net/proofs/artist/9e30dc3b-2432-48da-8cfa-b2429d98ea02.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb3cc41d33f16ca3c86b66c52b932c7d53f2526acfea71a09e5b2ce51b12948. 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/DEB959002701 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7106c1d078cb3ae2660c74fcbd964c07a441aec723c16893e2ca0092caf27616. 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/DEB956439101 — a six-check JSON result.
Alceste, Wq. 44 (Excerpts): Divinités du Styx
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f036f6b96235eb6fb42e396c01d67dfd9a2bb19b83b27238c2ca4a2e89bf45. 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/DEB958202708 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Ah, se intorno a quest'urna funestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9a22f30d25dfebb30c200dcab2d394c816487499e6b008771145db29cf4698. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEB956439102 — a six-check JSON result.
Alceste, Wq. 44 (Excerpts): Vivez, aimez des jours
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x317dfa401889bc8665948678b4bcfaa32b23e19e98cf194106aca69471b43250. 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/DEB952020013 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Chiamo il mio ben così
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98175043ebb43c90c9de88341e8e558f1e40e4ce7ab5b3647e32f2bcd42db1e. 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/DEB952020011 — a six-check JSON result.
Alceste, Wq. 44 (Excerpts): Parez vos fronts de fleurs nouvelles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73e913c0adc0613e13098a1b4d707ea7a7b5536e4db0029c482f5fb0175d0ef. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020014 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Gli sguardi trattieni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9828d908d95320d5d93c8486103d6389183fed774342918c752371d2ecb36e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB956439113 — a six-check JSON result.
Alceste, Wq. 44 (Excerpts): Vivre sans toi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3c0f543b1212ad056c93586055ff7cf81a7a233af2e1f45abd8770af292f83. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DEB952020015 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Dance of the Blessed Spirits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886f697d237ce7e0116f64c78be1595f79202250d276edd3724d8baa74f8db68. 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/DEB956439126 — a six-check JSON result.
Alceste, Wq. 44 (Excerpts): Recois, Dieu bienfaisant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23189a77218010a1052297b1b11da25d63bd21d7bd1d620aea1b79b62fbcb00d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB958202720 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Vieni appange il tuo consorte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bc8bcb0f9dfe4460047b37ba7b0b43157e68fc44a35af2ca411026bf977ed2. 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/DEB956439132 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482055020280374c348d75c42696dc2be318a3f98a65510c482f78542149f883. 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/DEB958202721 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Che fiero momento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a72da4ecc4c55bad91829c8f1d6648bd4242e446b1dbd550b65742f41810dbd. 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/DEB956439134 — a six-check JSON result.
Iphigénie en Tauride, Wq. 46 (Excerpts): Des noirs pressentiments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e27298b64a8dd64e35f4c079a15f03bf21c835e827575807e432dcd64949f34. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEB952020016 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Che faro senza Euridice?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085057511b1d50304ed322397d376174b97d89691e67f870009d4ff53ee3993c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB956439136 — a six-check JSON result.
Iphigénie en Tauride, Wq. 46 (Excerpts): Patrie infortunée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca083efe7f40f101ae8af86b11410317d8a1ef94f5073177549450881c4f774f. 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/DEB952020005 — a six-check JSON result.
Orfeo ed Euridice, Wq. 30 (Excerpts): Trionfi amore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4902c18152621f956e16a1e7ee128f6b129c69b25b8846184a5fcde2ceba17b. 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/DEB952020012 — a six-check JSON result.
Iphigénie en Tauride, Wq. 46 (Excerpts): Et tu prétends encore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e738afbf07646633916c38e76ca8fd9db409b1b61a989f7d4b5cfa1e2dcf95. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020006 — a six-check JSON result.
Paride ed Elena, Wq. 39 (Excerpts): Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a31374a1c6b59337aa681b36f9bb72fa24953d8cd0007c1fd668d7ef92ef5ff. 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/DEB958411801 — a six-check JSON result.
Iphigénie en Tauride, Wq. 46 (Excerpts): Divinité de grandes âmes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7286c46f29196312046c28bc263bbd6bedcf401bdf4b3b166649f7af7c3f27a8. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/DEB952020007 — a six-check JSON result.
Paride ed Elena, Wq. 39 (Excerpts): Non sdegnare, o bella Venere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71797d177be603dc61befea3443e396e756c88aa50018ac1a6bdfafe7d96fd06. 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/DEB958411802 — a six-check JSON result.
Iphigénie en Tauride, Wq. 46 (Excerpts): Non, cet affreux devoir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4439e1a4568f1147cd25db833ece0292115fe7d75b06b3674bddd10db011e26. 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/DEB952020008 — a six-check JSON result.
Iphigénie en Tauride, Wq. 46 (Excerpts): O Diane, sois-nous propice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4344e3a331a9c8ab11ead4fd1a6eae712b396b719826599569c8648532db4d39. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB952020009 — a six-check JSON result.
Iphigénie en Tauride, Wq. 46 (Excerpts): Les Dieux longtemps en courroux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0899a6f23f8e5001004ad1226b05c03a2523e51f7803ec671a634267548f91. 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/DEB952020010 — a six-check JSON result.
Le cinesi, Wq. 18 (Excerpts): Son lungi e non mi brami
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d913e9cf6b50edb390a5a0c8d560b907f4b6c3927e50756b6c74290930da50c. 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/DEB958917805 — a six-check JSON result.
Le cinesi, Wq. 18 (Excerpts): Voli il piede in lieti giri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a77ca2cc02daa2ca95c2bda6b54bde1a646e8da050eb04e949c8d1b9c2e35. 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/DEB958917811 — a six-check JSON result.
Pfitzner: Lieder (Complete Edition, Vol. 2)
Schoenberg, Stauss & Debussy: Ausgewählte Lieder
Haydn: Scottish Songs, Trios in C Major & G Major & 6 Original Canzonettas
Beethoven: Irish, Welsh & Scottish Songs
Copland: Appalachian Spring - Poulenc: Gloria - Blacher: Variations on a Theme of Paganini for Orchestra
Jugend: Musik für Flöte, Klarinette, Horn und Klavier in B Major, Op. 139a
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc654b4e1a4aa5368b9e0e75b67ac1874b5abc87c0bef9ca872fcbbc327303fa7. 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/DEW740727020 — a six-check JSON result.
Loewe: Lieder & Balladen (Complete Edition, Vol. 17)
Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 1: "Licht überm See" (Nurse, Messenger of Keikobad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92fb270daa16b213f4d7545b5f77f037694e6806264cdf91f1f512e7ba775d2. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8703240 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 1: "Amme! Wachst du?" (Emperor, Nurse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f19a99a2b8f1f0238a1c7e2250627156a3a47b50132c99feadc87bdb4fdbd0a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8703241 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act II, Scene 1: "Ach! Wehe! Daß sie sich treffen müssen" (Empress, Nurse, Barak, Barak's Brothers, Beggar-Children, Barak's Wife)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8582e4a94effb61083c80d5ee72aac72008bd5bd927370a36c35fa351ed08d7. 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/GBAYC8703257 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act III, Scene 1: "Mir anvertraut, daß ich sie hege" (Barak, Barak's Wife)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4218794875f69008db91bd891b1649c0e948b42513ca0d82797a699b6625c1c1. 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/GBAYC8703273 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act II, Scene 2: Verwandlung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eac0ad2ee75bf2b19900ae13be1464111714ba8c9bf81bc537432735ccc04e6. 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/GBAYC8703258 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 1: "Wie soll ich denn nicht weinen?" (Voice of a Falcon, Empress, Nurse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6defa1b19857f7bd4815a80ea1a612cb49fa79dc0fccd55aa768dc2b6a87fb9. 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/GBAYC8703243 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act II, Scene 2: "Falke, Falke, du wiedergefundener" (Emperor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a22d69b5029c109659a35666c40b3a4142865c1e68b572be3650435ef69afa1. 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/GBAYC8703259 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 1: "Amme, um alles, wo find' ich den Schatten?" (Empress, Nurse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc33ab1135baa03f8caa44aae10d407fab78923a7017e771ac11a7b18ade7af. 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/GBAYC8703244 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 2: Verwandlung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5954d62c20b81d55bdbfea64a1851281b44349a4617f882c82895f55f5009e69. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8703245 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 2: "Dieb! Da nimm!" (One-Eyed Man, One-Armed Man, Hunchback, Barak's Wife, Barak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf903e9fe3845d3aef7b7584c11ecc1acf36e75ae7990b1bbd2152c5bcb784a15. 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/GBAYC8703246 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 2: "Sie aus dem Hause, und das für immer" (Barak's Wife, Barak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334029107f7aa7128a09ace1bfc1e9f8043f7da3fb8d6fcf690734d92e88c463. 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/GBAYC8703247 — a six-check JSON result.
Strauss, R: Die Frau ohne Schatten, Op. 65, Act III, Scene 3: "Vater, bist du's?" (Empress)
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Strauss, R: Die Frau ohne Schatten, Op. 65, Act III, Scene 3: "Goldenen Trank, Wasser des Lebens" (Empress, Guardian of the Threshold, Voice of Barak's Wife, Barak's Voice)
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Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 2: "Doch ich armes Weib, ich hab' keinen Spiegel!" (Barak' Wife, Nurse, Maids, Chorus, Empress' Voice, Apparition of a Youth)
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Strauss, R: Die Frau ohne Schatten, Op. 65, Act III, Scene 4: "Trifft mich sein Lieben nicht" (Barak's Wife, Barak, Voices of Unborn Children)
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Strauss, R: Die Frau ohne Schatten, Op. 65, Act I, Scene 2: "Ihr Gatten in den Häusern dieser Stadt" (Voices of Three Town Watchmen, Barak)
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Strauss, R: Die Frau ohne Schatten, Op. 65, Act III, Scene 4: "Nun will ich jubeln" (Barak, Emperor, Voices of Unborn Children, Chorus, Empress, Barak's Wife)
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Mozart: Complete Edition Vol.12: Arias, Lieder etc
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Or che il dover... Tali e cotanti sono, K.36
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0c8f5474f9a4781a5dbee500f8c0c3224bd3b5d9a34c871f6223df7d330a40. 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/DEF058002580 — a six-check JSON result.
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Mozart: Arias, Vocal Ensembles & Canons - Vol.3 (Complete Mozart Edition)
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Der Fliegende Holländer, WWV. 63, Act II: Summ' und brumm', du gutes Rädchen (Choir)
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Der Fliegende Holländer, WWV. 63, Act III: Steuermann, laß die Wacht
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Mozart: Arias, Vocal Ensembles & Canons - Vol.2 (Complete Mozart Edition)
Die Zauberflöte, K.620 / Act 2: "Pamina, wo bist du?"
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Don Giovanni, K. 527 / Act 1: "Là ci darem la mano"
Orchestra of the Royal Opera House, Covent Garden
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Wagner: Götterdämmerung, Prologue: Prelude
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Wagner: Götterdämmerung, Prologue: "Welch Licht leuchtet dort?" (Norns)
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Ariadne auf Naxos / Prologue: Orchestral Introduction
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Ariadne auf Naxos: "Die Dame gibt mit trüben Sinn" - "Wie sie sich schwingen"
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Ariadne auf Naxos / Prologue: "Mein Herr Haushofmeister!"
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Ariadne auf Naxos: "Großmächtige Prinzessin"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10c9ae51ff87e0f6685579ffa4fbd330034c12b51faa3942ba9027850287b30. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402914 — a six-check JSON result.
Ariadne auf Naxos / Prologue: "Du allmächtiger Gott!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47aca0ba427c2ef015615e00a97f0c5666a780d91fc28c1a260efe5eed92c77f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLA508402903 — a six-check JSON result.
Ariadne auf Naxos: "Hübsch gepredigt! Aber tauben Ohren!" - "Eine Stör- rische zu trösten"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf747d0dda4c023e6ec7053ff96ef81b58bcf7e3afe7acae63176f5320ad099f. 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/NLA508402915 — a six-check JSON result.
Ariadne auf Naxos / Prologue: "Meine Partner, meine erprobten Freunde!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba580014fe04558f7eb0cfca8cb742b7f00608cf17367aabeea6853b7819154. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402904 — a six-check JSON result.
Ariadne auf Naxos: "Ein schönes Wunder!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcca626e3d62dbd1f0d37066c16b47414277debcb4402905861110afe1f32e6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLA508402916 — a six-check JSON result.
Ariadne auf Naxos / Prologue: "Ein Augenblick ist wenig"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e014bb30e3e3cfc68602955ce490ca8463e2de673846c9091a4aec403c4e69. 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/NLA508402905 — a six-check JSON result.
Ariadne auf Naxos: "Circe, kannst du mich hören?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172d0d7b59e9b6bc84870f470f5f74a3574dce8f96c529f0942cf5e4e5a021d7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402917 — a six-check JSON result.
Ariadne auf Naxos / Prologue: "An Ihre Plätze, meine Damen und Herrn!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd6382c991b0949535b048abeda8a8bcd071c28e3782db6c777daf8b39cc74b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLA508402906 — a six-check JSON result.
Ariadne auf Naxos: "Ich grüße dich, du Bote aller Boten" - "Du schönes Wesen! Bist du die Göttin dieser Insel?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e19ae3d5c6c9377f6ee941930e50e749721e0137df8940fa3785c9b917ac59b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402918 — a six-check JSON result.
Ariadne auf Naxos / Prologue: "Sein wir wieder gut" - "Musik ist eine heilige Kunst"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7df615bce3c0a624cdcef8e90e98eaa8ba5253dd2fb55dad95bfecf787b561. 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/NLA508402907 — a six-check JSON result.
Ariadne auf Naxos: "Gibt es kein Hinüber?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89abc6c43c68865f276c33e9ae19258aa8373f712cb8c3f9b29c6437cc2233e2. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402919 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca1c609b79d66281975d8e6521a04a40deb0fad32e1f934e2a6702438cd74ae. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402908 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a5de4ad7d26e8cb9728416cf5df0a55a4332ea36ef21cddc793f462061a0d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402909 — a six-check JSON result.
Ariadne auf Naxos: "Ach! - Wo war ich?" - "Ein Schönes war"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485eb501b96001d522d160c9cba46967e25f56680c82524c36790c72efbd04f6. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508402910 — a six-check JSON result.
Ariadne auf Naxos: "Lieben, Hassen, Hoffen, Zagen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299f0f7dcf2124428c5a0250061d254a69a949f756374dd5926633f7b012fa7. 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/NLA508402911 — a six-check JSON result.
Ariadne auf Naxos, Op. 60 / Opera: "Es gibt ein Reich"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83909e16f0fb253e79313cb337679663398645c64dd4b59a14af22e94f572d7e. 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/NLA508402912 — a six-check JSON result.
Pfitzner: Lieder (Complete Edition, Vol. 5)
Pfitzner: Lieder (Complete Edition, Vol. 1)
Pfitzner: Lieder (Complete Edition, Vol. 3)
Pfitzner: Lieder (Complete Edition, Vol. 4)