Lorenzo Alvary, also Lorenz Alvari (20 February 1909 – 13 December 1996) was a Hungarian-American operatic bass. Life and career Born in Debrecen, Alvary first studied law in Geneva and Budapest,
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 0x0456b6f70ea1fd5cc4284181f1f2737b84670703f13f98014b7da31e2f873681. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93f55ccb-dc94-4fad-881b-699ce20fe62a.json and https://artists.proofprofile.net/proofs/artist/93f55ccb-dc94-4fad-881b-699ce20fe62a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Flotow: Martha (Sung in English) [Recorded 1961]
Mozart: Le nozze di Figaro, K. 492 (Live)
Mussorgsky: Boris Godunov (Sung in English) [Live Recording 1956]
Richard Strauss: Der Rosenkavalier, Op. 59, TrV 227 (Live Recordings 1946)
Richard Strauss: Der Rosenkavalier, Op. 59, TrV 227 [Recorded Live 1946]
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Licht über'm See - Live
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 0x40a012fc82ceac7d6da6dd6d18244c7a8ec10148a175efefa5f27bb03313945a. 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/DEF057730301 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Komm bald wieder nach Haus, mein Gebieter - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7f95fb84b0c79f2a5b25c900d97903ee84efc23da9d2821aa5bd9cf56a354a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057730315 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Schweigt doch, ihr Stimmen! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3a932e596beadba251a20906ac557fe1efe8d12bca7a65c82d745e5253c523. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057730328 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Amme, wachst du? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2300b056722530aa186693b646698021f7b21212e59622dba2df7a5d77f02408. 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/DEF057730302 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Was ist nun deine Rede, du Prinzessin...O Tag des - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc63376ecd902436a7474c224e955d74bb8599a7691e8bf229435eafd93d455. 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/DEF057730316 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Mir anvertraut - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8486bfa6674da436834bd29e20d1d4e6f55ee875f4d74435affc8e908a1ecce1. 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/DEF057730329 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Ist mein Liebster dahin? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcc9b6eae706822819d2e78155f6bd4c1e4fcdca2760268435c48e5ec45fd75. 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/DEF057730303 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65 / Act 2: Orchesterzwischenspiel - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83aa7b2a9d1e1fe98d7c7bdbee374608e48ae52d928b1acc24404ccc26b3c40. 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/DEF057730317 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Wie soll ich denn nicht weinen? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a9506732d4afac80c4e7fb774ea22adb15b9089121f370d957e04a0f5dc33a. 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/DEF057730304 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Falke, Falke, du Wiedergefundener - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ad71b7bded9b92034478c2008efb247a630b9ef679846f546513b2d953a9b7. 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/DEF057730318 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Fort von hier! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094d0fbebb7303a03b5819ceee1d316a2e1433b714051898b028f95920e1543a. 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/DEF057730331 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Amme, um alles, wo find' ich dein Schatten - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d34a0b7fa33c959768e8d4ff70ee0bbad08a14882e0f8daf979c80e7f4dc2dd. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEF057730305 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Es gibt derer, die haben immer Zeit - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf468082bc99878e843fb1203926028e74dc0522447f0f31a6dfe1e4cef513fc. 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/DEF057730319 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Wehe, mein Kind - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958ab00df22e9b27957789e480f555317478e951b22c8fe4dc550e5692002807. 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/DEF057730332 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Erdenflug - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638168005e8e1c9f358ace182b2ff7d2fdf1f997d8b6f6a2338df915d697b84d. 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/DEF057730306 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Schlange, was hab ich - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53b8b7951cbd8eceff686f36f61525d66649a6fe752ae0201f00bcde2b9927f. 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/DEF057730320 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Sterben! Sterben - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd866162d6af800d04737a163ab3ddc16773e6abb2647d87ece287dafc98c987a. 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/DEF057730333 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Dieb! Da nimm!...Reiss ihn nach hinten...Zu hilfe" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72895b7e849667ec963463cb904dcca045e2371f15d90d4fcd6f0d09ca9b6d13. 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/DEF057730307 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Ein Handwerk verstehst du sicher nicht...Um Nahrung für mich gräme dich nicht! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1c6d36ac176b7c417ac0eaa8443c077e284965b7db1d215a52c9261125f8ef. 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/DEF057730321 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Vater, bist du's? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98142d3d373ed69566937f8ba9085674037ffad1e258cf2905d85153026e87d1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057730334 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Sie aus dem Hause - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23deb8acd21a594949e4ebf0b29d0c5ec04b09ad61cefe744d673e308e936d62. 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/DEF057730308 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Wer da? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac862d1b04afc71dd1b201d71fca9ebca2d5cc3483f58c2c3624c038c01fa30f. 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/DEF057730322 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Weh mir! Erfüllt der Fluch! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b49647d90b627961e9d4257742810d785da69a0957e1daf43cbb7a9dc314dfe. 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/DEF057730335 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Dritthalb Jahr bin ich dein Weib - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f38011827f56d35565a8eadbc4905408a74b24c6dee1b6387e925b96f808068. 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/DEF057730309 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Sieh - Amme - sieh - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb767fb1979e4667fb921277e20a102b5a7efaccaff95bfd0ede27541439c8e32. 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/DEF057730323 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Wenn das Herz aus Kristall - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50500db04ccfd1fb171c0d53783a679ae13d071f4d8e5067963ce655ffccf8f8. 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/DEF057730336 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Was wollt' ich hier? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbadc3704d8632d7ec2ad3c2added148f7e23c222e800fa7d66f2264b37c76de. 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/DEF057730310 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Wehe, mein Mann! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e210e0e73e3b36c049164cdd91f7d14099f0476e890e587e3cbb84e204012e. 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/DEF057730324 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Ach, Herrin, süße Herrin! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d81d3ab0023b974f04e4dad7b8c05a849603bb7b7c2d0143e41050a4f48a8a0. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057730311 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Es dunkelt, daß ich nicht sehe zur Arbeit - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263bd41b10778f7262d6f12f14af209f4be7684084a8612baed73d002de0ea26. 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/DEF057730325 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 3: Nun will ich jubeln - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5fd83fb3bbcb124ca0c9ebca9bc9d7975fefead4b63aaf681281e9d439621a. 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/DEF057730338 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Hat es dich blutige Tränen gekostet - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0742458181c7fb85637f6143e16a0688c926144f7a85baf1487053c1c63019. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057730312 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Mutter, Mutter, laß uns nach Hause! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408baa9d7d8abc8a29362aa689e74c0e71e28938ce59dcd13d2ec8d856713635. 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/DEF057730313 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 2: Das Weib ist irre - Barak, ich hab' es nicht getan! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6c1b1dbd43942e8865d416d7086a9b6fd1fb34dca11ef5470a4ef1f2b13602. 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/DEF057730327 — a six-check JSON result.
Die Frau ohne Schatten, Op. 65, TrV 234 / Act 1: Trag' ich die Ware selber zum Markt...Ihr Gatten in - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9843e5ed383b912ba3bc6b96ab4c3a096dc3480b8c74283a56f6821813f9b1. 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/DEF057730314 — a six-check JSON result.
Mozart: Le nozze di Figaro (Live Recordings 1949)
Mozart: Don Giovanni, K. 527 (Recorded 1954)
Fidelio Excerpts conducted by Bruno Walter sung in English
Verdi: Un ballo in maschera (Live Recording 1947)
Mozart: Le Nozze di Figaro (Metropolitan Opera)
Mozart: Così fan tutte, K. 588 (Sung in English) [Live]
Wagner: Die Meistersinger von Nürnberg (The Mastersingers of Nuremberg), WWV 96 [Recorded 1953]
Beethoven, L. Van: Missa Solemnis (Philharmonic Symphony, Walter) (1948)
Alessandro Scarlatti : The Spanish Lady & the Roman Cavalier [Scipione nelle Spagne] (1961)