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 0x422a4a2a1bfa7c4ad249fad1f29a9b40d09c80099f932b74d69f2b2cbf3e91a8. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0285d613-4fac-423f-97a3-55e4c5254109.json and https://artists.proofprofile.net/proofs/artist/0285d613-4fac-423f-97a3-55e4c5254109.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Wozzeck, Op. 7 / Act 3: Verwandlung - Orchester-Überleitung
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 0x4aa21ce09911d7489aa2703da406745ca9ba408b22ab0fa2bd67f7cd0b19a452. 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/DEF056531324 — a six-check JSON result.
Wozzeck, Op. 7 / Act 3: Tanzt Alle; tanzt nur zu...!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace205d4e4e8db5b228f22fe6d7258d08c93cdf81b20d57939bbbd091c7f5670. 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/DEF056531325 — a six-check JSON result.
Wozzeck, Op. 7 / Act 1: "Du, der Platz ist verflucht!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe83a514c957208d3cf5291ae23393889977b11a273be3b807cf67b6a0072b1. 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/DEF056531306 — a six-check JSON result.
Wozzeck, Op. 7 / Act 3: Dort links geht's in die Stadt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1097bb0109fb4ec66fd57d78720b66872e19bbb5017cd8a01a62d4aae8dcfe7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056531323 — a six-check JSON result.
The History Of Classical Music - Part 1 - From Gregorian Chant To C.P.E. Bach
Léonin / Pérotin: Magnus Liber / Feast of St. Stephen: Etenim sederunt principes (à 1) (Introit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5913ba8fb14caaa7decf3eff20ecf776a07bcf9614bfd5e1976070ab2e6d702d. 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/DEF059631808 — a six-check JSON result.
The History Of Classical Music - Part 2 - From Haydn To Paganini
Symphony in F sharp minor, H.I No. 45 -"Farewell": 1. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6baa75fb442c7f78f96b79bfc04f416616f95443c3657cbdc1dfb507f2a260b. 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/DEF057801111 — a six-check JSON result.
J. S. Bach: Oster-Oratorium, BWV 249 - Magnificat, BWV 243
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02667d2027ad6113bed965a60c429e8592e474ed6ab9d69c7c4ad53e23843743. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEF056830101 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Quante buffonerie!" - "Chi picchia alla mia porta?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852df74759ed5703d38bccbff417d09537087b1484fe4c08a5f2f2f6c56828b5. 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/DEF056830138 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Cinque... dieci... venti..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cd8070f8fc6fb7c664ca8329d8c70958d99628e5b2e5da6362348bd38db22a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830102 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Che novità!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf994ca6083448bb2291d9072bc4c0713d1f381b4fe6a51b3e8e86099d9c99a89. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DEF056830139 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Cosa stai misurando"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fb796041b63e5e77a97a6e57ff2a0a6f63802844a0a5c2df5ca0f26f1870e0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEF056830121 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Susanna, or via, sortite"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc594f2c070595b32a718ad4623f02c369ef726cf993dd62ff6ce1a1c7bc4738. 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/DEF056830140 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Se a caso Madama la notte ti chiama"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426020da033afc6eab469abdbd9fd2851f00e4e5dadbbe4beae592895303f519. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830103 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Dunque, voi non aprite?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f717f3e4de9240a194322636827daa6fe303dcd86e29d09ceb20c322b5f3bc1. 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/DEF056830141 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Or bene, ascolta, e taci"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81636b722cca5732027ebab5aa901a3c24588be2b3488ac580ec2bd27e2ed8c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830122 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Aprite, presto, aprite"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d599abbacecf809bf1029c99b7adbc03d81b54bd12734f01da214c14d7c85e0. 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/DEF056830142 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Bravo, Signor padrone!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f47237496e13589b39754674a4376ba556a4052ea4881135a756558e6cfc7ea. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830123 — a six-check JSON result.
Le nozze di Figaro, K. 492 / Act 1: "Se vuol ballare, signor Contino"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b939f0db984ff936a0ec2a3b6a9d94030abdcca0307e4900412fe7ee9abdac0. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/DEF056830124 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Tutto è come io lasciai"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96ed64a56b06f3c6ad66bb46c8fa6fa0e923dd34e1dcc4a411f25d9de1fa090. 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/DEF056830144 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Ed aspettaste il giorno fissato a le sue nozze"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f7477ac333781738a54f820bab272d9390309ef2d0b5d771fd42beb773be9a. 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/DEF056830125 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Esci, ormai, garzon malnato" - "Susanna!... Signore!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13230b771b5215544377917647131cac45b27f581c72205906f440f48797de7. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830145 — a six-check JSON result.
Le nozze di Figaro, K. 492 / Act 1: "La vendetta, oh, la vendetta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c46cc80a7b134a5b027109f170b3413dc759690c3982face2228626be21163. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830105 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Signore, cos'è quel stupore?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb503e7cbd2cf31d0666379810f587fd088355b7de00a01f9e77636a799d15eeb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830146 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Tutto anchor no ho perso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88056fecab813ef011c2781e94f2950b3e73145689fea2b1b712390ef5272db9. 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/DEF056830126 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Susanna, son morta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6252403b1e8feaf6942cae65d9199407b29ede3b69de49f731bb7b5c921fbc29. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DEF056830147 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Via resti servita, madama brillante"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62104611ce84c89cf2c201dbf25c6ab4ca45310400f96ad2d8c688c79456390d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830127 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Signori di fuori son già i suonatori"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4595c4210314a44f02cae62f74668e47e279641b1be0066b88fb2fa3de8244. 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/DEF056830148 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Va'là, vecchia pedante"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf451229ec5d52e1f7a94db8b12f2243b3ae7aba10d37808b2dce9ebe48008341. 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/DEF056830128 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Conoscete, signor Figaro"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b5facdaf150f4a7c05868b269d5a31a9bad4ed90065d643ed2677ea3789f3d. 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/DEF056830149 — a six-check JSON result.
Le nozze di Figaro, K. 492 / Act 1: "Non so più cosa son, cosa faccio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253c992e590ae298e62321882ea2fbfa093396a26013da6819c88dd73222ff7d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830106 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Ah! signore" ... "Cosa è stato?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a7ea648a2dd0986f623a21cb9d7c5b569c45122498c72d93cf7c61ddf85f42. 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/DEF056830150 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Ah, son perduto!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225c7cedb45c0a63a0e6bed681fe9e767a5e9e040fca15ffedf41c1c3ff23e7a. 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/DEF056830129 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Vostre dunque saran queste carte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf4959c081dc2fe7fe2810e33b7ae55761c314725bdacaedc4591d26025542e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830151 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Cosa sento! tosto andate"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421dc08afb612cfb6c2d8061c259d4cbb94a4b36e39894d8160e6258a246b9b1. 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/DEF056830130 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Voi signor, che giusto siete"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac0fcf26095edcbd87e994bc808fb1c04a1926751c122fbc1fd8eb19eb64ab0. 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/DEF056830152 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Basilio, in traccia tosto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cc2b1d1da8ca077ab7343fcba17062293eec8cfd2f1fef69a77d97e8b33f6d. 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/DEF056830131 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Che imbarazzo è mai questo" - "Via, fatti core"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b84d7c1e853470e5260a7bad42d4a206c5564c80a32e5414f1256a1924b2f8. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/DEF056830153 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Giovani liete, fiori spargete" (I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d2b550f6f66cb255be469f15ae18d2685753ab2b60f952179609819ea0ef73. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEF056830132 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Crudel! perchè finora"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f95d5410812225ff36262a205d68f00edcb75223a015c738d902a4172cfd31. 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/DEF056830120 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Cos'è questa commedia?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1e33aec835b467f3492b390688a09ac62bfd34d3e17a781e8fc9070a60db17. 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/DEF056830133 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "E perchè fosti meco"
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Le nozze di Figaro, K.492 / Act 1: "Giovani liete, fiori spargete" (II)
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Le nozze di Figaro, K. 492 / Act 3: "Hai già vinta la causa!"
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Le nozze di Figaro, K.492 / Act 1: "Evviva!"
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Le nozze di Figaro, K. 492 / Act 3: "Vedro mentr'io sospiro"
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Le nozze di Figaro, K. 492 / Act 1: "Non più andrai"
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Le nozze di Figaro, K.492 / Act 3: "E decisa la lite"
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Le nozze di Figaro, K. 492 / Act 1: "Porgi amor"
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Le nozze di Figaro, K. 492 / Act 3: "Riconosci in questo amplesso"
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Le nozze di Figaro, K.492 / Act 2: "Vieni, cara Susanna"
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Le nozze di Figaro, K.492 / Act 3: "Eccovi, o caro amico"
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Le nozze di Figaro, K.492 / Act 2: "Quanto duolmi, Susanna"
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Le nozze di Figaro, K. 492 / Act 2: "Voi che sapete"
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Le nozze di Figaro, K.492 / Act 2: "Bravo! Che bella voce!"
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Le nozze di Figaro, K. 492 / Act 2: "Venite... inginocchiatevi..."
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Georges Bizet: Carmen (Highlights in English)
Sadler's Wells Opera Present Carmen (Highlights Sung in English)
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Le nozze di Figaro, K. 492, Act I: No. 2, Duet. Se a caso madama la notte ti chiama
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Le nozze di Figaro, K. 492, Act I: No. 3, Se vuol ballare, signor Contino
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Le nozze di Figaro, K. 492, Act I: No. 4, La vendetta, oh, la vendetta!
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Le nozze di Figaro, K. 492, Act I: No. 6, Non so più cosa son, cosa faccio
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Le nozze di Figaro, K. 492, Act I: No. 10, Non più andrai
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Le nozze di Figaro, K. 492, Act II: No. 11, Porgi amor
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Le nozze di Figaro, K. 492, Act II: No. 12, Voi che sapete
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Le nozze di Figaro, K. 492, Act II: No. 13, Venite inginocchiatevi
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Le nozze di Figaro, K. 492, Act III: No. 18, Vedrò mentr'io sospiro
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Le nozze di Figaro, K. 492, Act III: No. 20a, E Susanna non vien!
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Le nozze di Figaro, K. 492, Act III: No. 20b, Dove sono i bei momenti
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Le nozze di Figaro, K. 492, Act III: No. 21, Sull' aria... Che soave zeffiretto "Letter Duet"
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Le nozze di Figaro, K. 492, Act IV: No. 24, L'ho perduta, me meschina
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Le nozze di Figaro, K. 492, Act IV: No. 27, Aprite un po' quegl' occhi
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Le nozze di Figaro, K. 492, Act IV: No. 28a, Giunse alfin il momento
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Le nozze di Figaro, K. 492, Act IV: No. 28b, Deh vieni, non tardar
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Le nozze di Figaro, K. 492, Act IV: No. 29e-g, Finale. Gente, gente, all'armi... Questo giorno di tormenti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb0326f164ec3447479141e880d428d2b6c66508e3bf805045c3dc56d687c35. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/DEF056830118 — a six-check JSON result.
Ananda Nidra: Blissful Sleep (Two Sensual Meditations For Awakening Ecstasy)
Stravinsky: Œdipus rex (Collection trésors, mono version)
The Sound of Music (Studio Cast Recording)
Ivor Novello: King's Rhapsody / The Dancing Years