Andrei Bondarenko or Andriy BondarenkoАндрій in Ukrainian should be written as Andriy, as well as National Symphony Orchestra of Ukraine or Ukrainian Classic Artist Management refers him. (, born 19
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 0x757a67a94a2d3c7cc957c86e2b325db6b074c09a8149fe7384895d6410cb67e6. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f6307f5-72e0-4c4d-8bfe-3eefb4dd81e6.json and https://artists.proofprofile.net/proofs/artist/5f6307f5-72e0-4c4d-8bfe-3eefb4dd81e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb0f5c6d44c6d642aba17ba03bab4e0e29c424b3c2fc1719057fc50f61638029f. 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/USSM11303796.
Le nozze di Figaro, K. 492: Atto Secondo: Che novità (Recitativo: Il Conte, La Contessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482d99a2c1f8f7891b5c25049362499e0eaf470255eb30b58ba51ab0116d8249. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303827.
Le nozze di Figaro, K. 492: Atto Primo: Cinque... dieci... venti... (No. 1, Duettino: Susanna, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2195b40683ef73f93df39c04da789c5ff72d0d346d1c7b1385d78f205adebca. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303798.
Le nozze di Figaro, K. 492: Atto Secondo: Susanna or via sortite (No. 14, Terzetto: Susanna, La Contessa, Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91de3e207b13279b43147e32cf85c2f81f7bd6fe198545c8aeae7ae549e6f8b2. 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/USSM11303828.
Le nozze di Figaro, K. 492: Atto Primo: Cosa stai misurando (Recitativo: Susanna, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe7282b0bfe645929efb7a673dd8835f49c5aeda516b7f7ab2190f1858f46a4. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USSM11303799.
Le nozze di Figaro, K. 492: Atto Secondo: Dunque voi non aprite? (Recitativo: Il Conte, La Contessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b6ce6d9c4ce9b94e55d283909d496f8e5c3f3239a2a26412193856d5788f4f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303829.
Le nozze di Figaro, K. 492: Atto Primo: Se a caso madama la notte ti chiama (No. 2, Duettino: Susanna, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7263a02482dd152f5f6176d66db909cdc926b2eed2f79dae90aacf280a0789. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USSM11303800.
Le nozze di Figaro, K. 492: Atto Secondo: Aprite presto aprite (No. 15, Duettino: Susanna, Cherubino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b2708078d42d939e2ed8ce0774322f3001dbc8def3aa54d6a9a3c120848494. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USSM11303830.
Le nozze di Figaro, K. 492: Atto Primo: Or bene; ascolta, e taci! (Recitativo: Susanna, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1138720a3073c6060f0884d3c942dda1d90bc1c9485547c007f0124d5a8608. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303801.
Le nozze di Figaro, K. 492: Atto Primo: Bravo signor padrone! (Recitativo: Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5174e11dc5db4daea55f7034e610a50949cea503e4d42418d201cb40496c0103. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303802.
Le nozze di Figaro, K. 492: Atto Secondo: Tutto è come il lasciai (Recitativo: Il Conte, La Contessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33302374077ce8560f2eacbe0eb0ae6459b13be96458a8940ad228902b9f2e85. 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/USSM11303832.
Le nozze di Figaro, K. 492: Atto Primo: Se vuol ballare signor Contino (No. 3, Cavatina: Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cfa3508c3dbc4a3d52d4dc9e2713ac8e7b32b48f264f25c1c6b91d62b6d5e4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303803.
Le nozze di Figaro, K. 492: Atto Secondo: Esci omai garzon malnato (No. 16, Finale: Il Conte, La Contessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f260d75ccfc53d3639f32fa304ea8387b8542a671f1b80ff2d8c91e1f1e303. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303833.
Le nozze di Figaro, K. 492: Atto Primo: Ed aspettaste il giorno fissato a le sue nozze (Recitativo: Bartolo, Marcellina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001922eb23fb77e5a99a2d86602a5b736b070a501feb931d86a2f22490dc60dc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303804.
Le nozze di Figaro, K. 492: Atto Secondo: Signore, cos'è quel stupore? (Susanna, Il Conte, La Contessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d966bbe2f64908c85f56fecdd8e5bc850057e0ed96b7c21093b996e2960a512. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303834.
Le nozze di Figaro, K. 492: Atto Primo: La vendetta, oh la vendetta (No. 4, Aria: Bartolo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb0411b10beb4dab068e33e28972b2eabb71877cc6eb3991fad87ee396f4853. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303805.
Le nozze di Figaro, K. 492: Atto Secondo: Susanna, son morta: il fiato mi manca (La Contessa, Susanna, Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557bd30603d7aa0405b490d29a59438469b3060805fef296634b1bbc3f261ae8. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USSM11303835.
Le nozze di Figaro, K. 492: Atto Primo: Tutto ancor non ho perso (Recitativo: Marcellina, Susanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc703a12f5168844fa1d0a9daa7245517f1053f4bd323491ee7ec3a24bb2cc7. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USSM11303806.
Le nozze di Figaro, K. 492: Atto Secondo: Signori, di fuori son gia i suonatori (Figaro, Il Conte, La Contessa, Susanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e27788af92ab1fe5e1caa9c1aad2b78589919f76ba89c0c85c991ba8f5fc14. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303836.
Le nozze di Figaro, K. 492: Atto Primo: Via, resti servita, madama brillante (No. 5, Duettino: Susanna, Marcellina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3080e546067a8393a469b83530c07a68f745214743c75e63d3fb865c946afec. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USSM11303807.
Le nozze di Figaro, K. 492: Atto Secondo: Conoscete, signor Figaro (Il Conte, Figaro, La Contessa, Susanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbeeba1c626c0ed146a2187f8e87dbc249ad59243e312a2c8a09c76a0205a63. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303837.
Le nozze di Figaro, K. 492: Atto Primo: Va' là, vecchia pedante (Recitativo: Susanna, Cherubino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179fdf331d521d2cdf4e8b425635ca84a77a71968ad659f5416b50da4b9ae05c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303808.
Le nozze di Figaro, K. 492: Atto Secondo: Ah signor... signor... Cosa è stato ... Vostre dunque saran... (Antonio, Il Conte, La Contessa, Susanna, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0e401c92e5de9395898c09155e8dd2a137170cf4a797d90c0f4465952be02d. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/USSM11303838.
Le nozze di Figaro, K. 492: Atto Primo: Non so più cosa son, cosa faccio (No. 6, Aria: Cherubino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0db5caede26b97385dc061f876a3fbdf419e8be2d4a7900359de208f164f42. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303809.
Le nozze di Figaro, K. 492: Atto Secondo: Voi signor, che giusto siete ... Son confusa, son stordita (Marcellina, Basilio, Bartolo, Il Conte, La Contessa, Figaro, Susanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bb697002930b8f194a4181054368bace16bebd0752336a7c075d28255c63a0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303839.
Le nozze di Figaro, K. 492: Atto Primo: Ah son perduto! (Recitativo: Cherubino, Susanna, Il Conte, Basilio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc955f8a52e91f09511577cf5ee15a5df4ecdce245089c4427345a703baeb3b10. 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/USSM11303810.
Le nozze di Figaro, K. 492: Atto Terzo: Che imbarazzo è mai questo! (Recitativo: Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60abfd946a61ebb47f2639b028267bf708be76180012639c87a6ee4bef386a9c. 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/USSM11303841.
Le nozze di Figaro, K. 492: Atto Primo: Susanna, il ciel vi salvi (Recitativo: Basilio, Susanna, Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f722992d6a97fed23ad05aa6288e02f143f987883a56f0d29c62431aad28507. 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/USSM11303811.
Le nozze di Figaro, K. 492: Atto Terzo: Via fati core (Recitativo: La Contessa, Il Conte, Susanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d0d8c8e48fbb2f0eb1c7c7611973eb348b125de3f2222c0e96880d4381c900. 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/USSM11303842.
Le nozze di Figaro, K. 492: Atto Primo: Cosa sento! tosto andate (No. 7, Terzetto: Susanna, Basilio, Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17534c211f552919babd93e5fb671fed99cc22c45924d48e1d32e5403db69334. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303812.
Le nozze di Figaro, K. 492: Atto Terzo: Crudel! perchè finora (No. 17, Duettino: Susanna, Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fa69cd72aea9240b015aaa02664bc5ffedc836cc1baaf6e790c85ecce09ff8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303843.
Le nozze di Figaro, K. 492: Atto Primo: Basilio, in traccia tosto di Figaro volate (Recitativo: Il Conte, Susanna, Cherubino, Basilio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6ed1064d7bd5c3c06027141c22393267cbf7c8535d84615446b7dbdafc71fe. 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/USSM11303813.
Le nozze di Figaro, K. 492: Atto Terzo: E perchè fosti meco (Recitativo: Il Conte, Susanna, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd8f82870acb765dea9d460710a5833d6b9b9f4bee67a619ca6ecbbf7fbc4e9. 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/USSM11303844.
Le nozze di Figaro, K. 492: Atto Primo: Giovani liete fiori spargete (No. 8, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d20dad50b5f10483849b0cccd023b80b3798aa9dd449e751b4d82ea3dd5e27. 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/USSM11303814.
Le nozze di Figaro, K. 492: Atto Terzo: Hai già vinta la causa! (No. 18, Recitativo: Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5707ecab3c145fc43c9714d3be52224bcb74d817a451a770bba267dd006556. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303845.
Le nozze di Figaro, K. 492: Atto Primo: Cos'è questa commedia? (Recitativo: Il Conte, Figaro, Susanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f1a7132197dc677ec055f354a792982d3eda0c10056debefef372c9d71d0f8. 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/USSM11303815.
Le nozze di Figaro, K. 492: Atto Terzo: Vedrò mentre io sospiro (No. 18, Aria: Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926f436142437e6a03cd682b8e330048056afe4060c31e8172e9e64afed756a8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303846.
Le nozze di Figaro, K. 492: Atto Primo: Giovani liete fiori spargete (No. 9, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f87b66f9894e1a23026fb1f32615618b7cc245a1261670dcb256357befe0807. 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/USSM11303816.
Le nozze di Figaro, K. 492: Atto Terzo: È decisa la lite (Recitativo: Don Curzio, Marcellina, Figaro, Il Conte, Bartolo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a3effab17aa8d4a246e2eccdc9db203fcd80a903899505c7edae49e4c613ea. 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/USSM11303847.
Le nozze di Figaro, K. 492: Atto Primo: Evviva! (Recitativo: Figaro, Susanna, Basilio, Cherubino, Il Conte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd3180bc3e70c0d2d5f61db0ef2562f2c39ff274ea36044b01d5ca454db0493. 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/USSM11303817.
Le nozze di Figaro, K. 492: Atto Terzo: Riconosci in questo amplesso (No. 19, Sestetto: Susanna, Marcellina, Don Curzio, Il Conte, Bartolo, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763f905467d1e5e0382f73725999a7afbad84ceba9504d59218666b84ad52090. 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/USSM11303848.
Le nozze di Figaro, K. 492: Atto Primo: Non più andrai farfallone amoroso (No. 10, Aria: Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f84b100948f1d9b567c6ed1aa0ca183d1a08115a56be443fe84a050b80e2a33. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303818.
Le nozze di Figaro, K. 492: Atto Secondo: Porgi amor qualche ristoro (No. 11, Cavatina: La Contessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88cfa97897aec788d27f3cd63c5f6037680057508efb368f10cdea1d869e248. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303820.
Le nozze di Figaro, K. 492: Atto Secondo: Vieni, cara Susanna (Recitativo: La Contessa, Susanna, Figaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939e235a93c0da19f7d8b198a50a1bec624f2801f70e457f8bff9aeb01f50214. 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/USSM11303821.
Le nozze di Figaro, K. 492: Atto Secondo: Quanto duolmi, Susanna (Recitativo: La Contessa, Susanna, Cherubino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6e03d16fe795d50ea81ae4fb2f66de7ef5f999076b7ee01842f197e81d9b73. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303822.
Le nozze di Figaro, K. 492: Atto Secondo: Voi che sapete che cosa è amor (No. 12, Arietta: Cherubino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fccc15e91d53da6fefc97122f507c6cc9b093f5d570cb6ae43cea867f1277dd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303823.
Le nozze di Figaro, K. 492: Atto Secondo: Bravo! che bella voce! (Recitativo: La Contessa, Susanna, Cherubino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2adc7daa31cdb07a13b472224e8730940596e642a7199e73eaf9762dee2e9fb. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303824.
Le nozze di Figaro, K. 492: Atto Secondo: Venite, inginocchiatevi (No. 13, Aria: Susanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8145ce786ee471be88acf5cd035f6a29f5d82732c405ddd2622829715245246. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USSM11303825.
Le nozze di Figaro, K. 492: Atto Secondo: Quante buffonerie! (Recitativo: La Contessa, Susanna, Cherubino [Il Conte])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1bebed52ec7f84933ae249b0597ca0d3146b2f41ffa771790da544c37e9eb0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11303826.