Lucia Popp (born Lucia Poppová; 12 November 193916 November 1993) was a Slovak operatic soprano. She began her career as a soubrette, and later moved into the light-lyric and lyric coloratura soprano
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd446baeb1a6e06842879f333a8cb496a138f4a23c1cfb7f9f3f0cfcb9616ee. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acb9991b-bdd1-45ff-9ca0-2f01e256a44f.json and https://artists.proofprofile.net/proofs/artist/acb9991b-bdd1-45ff-9ca0-2f01e256a44f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La bohème, Act II: Da quel suon soavemente
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a00b1385450165d2d8087f4385f1fe745530cf7a6fb23ea79a4eb7163e3fed. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB958202311.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: I. Veni, creator spiritus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a688f51d7803dc31e78f60990f4d7699a00f2992cb6691e498d9f84d6825cf5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130601.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: II. Imple superna gratia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68178fdc320b0ee136ca29c818c2713b803a527230f3419c915fb2a28faf6e70. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130602.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: III. Infirma nostri corporis I - IV. Tempo - V. Infirma nostri corporis II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463f580898f34376c3bd2012c22d7a62dac8ef5aba127e01671bbe077e4510a9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130603.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VI. Accende lumen sensibus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7842344e9893ffc3bece87061f6f17e7c5c1d294098ef65403c2eea1723245. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130604.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VII. Veni, creator... Da gaudiorum praemia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2542eb5d0c33c8a86dea3f98f7968f7110644ea7756e8c5d9c0144816ad634c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130605.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VIII. Gloria sit Patri Domino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b00e963bd62ffa54f51071390224ae582d6dce5ccb0bf5e927bb2a922b3372. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130606.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: IV. Ewiger Wonnebrand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cb62a308aae3e8a53fe65aa353385018f388b25cf4eba271d4269a2855b1c3. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130608.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: VIII. Uns bleibt ein Erdenrest - IX. Ich spür' soeben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd833acefb0d3f634e5c0fec99fdd7eda941fa932a67536306e373f3a91e29e84. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130611.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: X. Höchste Herrscherin der Welt - XI. Dir, der Unberührbaren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5425af2b609a3b6ce05c3039b24accd2ba9d6527e9fd5885ecdd932cd6d7ae8. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:21:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130612.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XV. Blicket auf zum Retterblick
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864cb53f190413a24b3e6f11fa1b604c71a79e2a349f8142f8508fc7bc5d51e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130615.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XVI. Alles Vergängliche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa791bf233c3bd287e4af9176c1a5030b0c90672020ae1309dda8ff76d6afb10f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130616.
Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XIII. Neige, neige, du Ohnegleiche - XIV. Er überwächst uns schon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60643f236a246347a931ab1f4fab8ee92570b61a8367f0a2fe557f98d247a59a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130614.
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
Zeller: Der Obersteiger, Act 2: "Sei nicht bös" (Martin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e82799aa7752ef8e79e89c143c488da483576658a024eb80075a7dae12aa243. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602649.
Lincke: Frau Luna: "Schlösser, die im Monde liegen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb04d1dcda97ad2993a0ee515f586032c010d66652172fd80b77391c86ca5b4b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8601884.
Strauss, J. II / Orch. Stalla: Die Tänzerin Fanny Elssler, Act 2: "Draußen in Sievering" (Fanny)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5d72c6b6b6cc86e7090a6b5674a8b39bc7352a5722449d7f0b61056181c779. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602647.
Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37193341d289ffdadcfdef39bd0c73b4b95fd5416182809336270740acd72cb3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602653.
Benatzky & Strauss II, J.: Casanova, Act 1: Nonnenchor. "O Madonna, auf uns sieh!" - Lied der Laura. "O Marie, wie entflieh" (Laura, Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e4cf11a3dcee5b11c487cc5a94e146f875ec074b3e232f195f50969cd730dd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602646.
Mackeben & Millöcker: Die Dubarry: "Ich schenk mein Herz nur dem allein" (Jeanne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5672e563fbeffee7c120661856538379f18ca3740305854ed5c570f6decd7cdb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602651.
Lehár: Giuditta: "In einem Meer von Liebe" (Giuditta, Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438672c33402d6d24c1a4f274f62cf0229ca96a0969d3120806aef0ad19f0001. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bcee969063ffad93bb76c322faed14d04a61042f9dfaf834668d01aaa5962c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602316.
Stolz: Der Favorit: "Du sollst der Kaiser meiner Seele sein"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a1e41aaf04685e21da2888ac7ce6601244188438d983f98fbb3f4e722f4072. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8601959.
Lehár: Giuditta: "Meine Lippen, sie küssen so heiss" (Giuditta, Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31581d8350ff8202d288f2018ecad603cdb0cd0da158e65e573384daccf1b6fc. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600209.
Dostal: Die ungarische Hochzeit, Act 2: "Spiel mir das Lied von Glück und Treu" (Janka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc606914ac382c71b160aea96f6439706add1e35efd9d2c03027c1ddf896cdd7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602659.
Strauss, Johann II: Die Fledermaus, Act 1: "Ach, ich darf nicht hin zu dir! (Adele, Rosalinde, Alfred)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e283bcf118067cad477af468f90d8ec5175488c96de186264c69ff505f8756d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600728.
Strauss, Johann II: Die Fledermaus, Act 1: "Nein, mit solchen Advokaten" (Eisenstein, Rosalinde, Blind, Adele, Falke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5c34a9afd6fc7263d5f4e95aab0ba8ce9188c313c70fa152b5c998208371d0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600729.
Strauss, Johann II: Die Fledermaus, Act 1: "Trinke, Liebchen, trinke schnell" - "Mein Herr, was dächten Sie von mir" (Alfred, Rosalinde, Frank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbd3073158abf6c80bd8b5b89b1491a41a4f8b2667591e07bd872748db1a4d0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600732.
Strauss, Johann II: Die Fledermaus, Act 2: "Ein Souper heut uns winkt" (Chor, Adele, Ida, Orlofsky, Falke, Eisenstein)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4d6303a336e8f691b980185bd3350ea49ab08ad0b38adb053f66293101f7d4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600734.
Strauss, Johann II: Die Fledermaus, Act 1: "Täubchen, das entflattert ist" (Alfred, Adele, Rosalinde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e718d95bd25c6da211ea91fd4532762d66393ec6b993ef4b786cc301ed136ef. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600727.
Strauss, Johann II: Die Fledermaus, Act 1: "Komm mit mir zum Souper" (Falke, Eisenstein, Rosalinde, Adele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5f5ddc5141bfae66b54bfc43b45c289c8e57a357818a59ebf6e9b79b4e19b5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600730.
Strauss, Johann II: Die Fledermaus, Act 1: "So muss allein ich bleiben" (Rosalinde, Eisenstein, Adele, Alfred)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd008d6e50f5c0d085bdcc5c6ad7e875fbbee9917ef5a592068d9fd84c66301be. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600731.
Strauss, Johann II: Die Fledermaus, Act 2: "Ach, meine Herr'n und Damen" (Orlofsky, Falke, Adele, Eisenstein, Ida, Chor, Ivan, Frank, Rosalinde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9850ff4ffc9bb4c6648a6f8f20a9a426bcc4d755374d7b55f2ec590916d2ec1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600736.
Mozart: Così fan tutte, K. 588 (Remastered)
Rusalka, Act I: Song To The Moon - Enstürmantal
Classical Music: The Greatest Love Themes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69cc9d536fe3f372cbade7ba1fecce7bfad91176cbe40ce933587dfb13703f2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8700951.
Le nozze di Figaro, K.492 / Act 3: "Che soave zeffiretto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaef7c7b41e965e28d708a515fcc040dff8df466d60802a42ce2fc2613e3b7e8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA8150230.
Mozart: Le nozze di Figaro, K.492 - Original version, Vienna 1786 - Act 4: "Contessa, perdono ... Ah tutti contenti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897c57868fc0a8bcbb7fbec790d987b045ada12c31accabcfe4706834f472c14. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508400179.
Così fan tutte, K.588 / Act 1: "Soave sia il vento"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608115d0b6d5f654b432349ae5c6ce031efea75f8b386d800966e612d28cb82f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110550.
Eugene Onegin, Op. 24, Act I: Tatiana's letter scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03fdff62c7d0a5d8dd145cb136eb5c41ce858910f3872412acee1c03544700e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0903108.
Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
Opera Arias - Nessun Dorma - Casta Diva - O Mio Babbino Caro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110810.
Dvořák: Rusalka, Op. 114, B. 203, Act 1: "Mesicku na nebi hlubokém" (Rusalka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69cc9d536fe3f372cbade7ba1fecce7bfad91176cbe40ce933587dfb13703f2. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8700951.
Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"
Flower Duet - The World's Most Beautiful Duets
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