Aldo Protti (19 July 1920 – 10 August 1995) was an Italian baritone opera singer, particularly associated with the Italian repertory. He was particularly appreciated in Verdi roles, especially Rigolet
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 0x8e53f83dfc37c6f778ed0bc2e45e0aff8f5d5befa0913c6f22fb822b7a87bc11. Chain 2 (Bitcoin): anchored in block 953963 (2026-06-16T15:12:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28362e71-b404-4b32-920a-ba2f49bb0704.json and https://artists.proofprofile.net/proofs/artist/28362e71-b404-4b32-920a-ba2f49bb0704.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Famous Italian Baritones of the Past ( Vol. 2 )
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 0x9be4cc7d63d81b30564a27e7b0e83ca62d1edbcbf356c7c12c2fed68364d4f3d. 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/ATP130494217.
Mario Del Monaco: His First Classical London Records of Pagliacci & Cavalleria Rusticana
Ponchielli: La Gioconda, Op. 9 (Recorded 1960)
Wagner: Der Fliegende Hollander (Sung in Italian)
Il mito dell'opera: Aldo Protti (Recorded 1957-1974)
La traviata / Act 3: "Parigi, o cara, noi lasceremo"
Orchestra dell'Accademia Nazionale di Santa Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3869082d3d9d1c78e13a88ed02eedf8c146f2aafe12a04a846ab759a350c869a. 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/GBF075440909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84589f156d63c25a9b66be2d187eb256a1f59959e0ddaefebf4a7267f33130da. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0477435092044d88490929b47dc4553c1847f1e16d278bc6e02ffdd2b15f8c29. 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/GBF076040424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c52ab03c920b67e5a13cfc076c0e00b515f15da4c2c7b0b07097e7d6237e9c2. 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/GBF076040402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371ecfe2d4d9f82375ac0eb57df8c8a0fd825ee1a34cf6ee491c3878a9170c1c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040425.
Otello, Act I: Roderigo, ebben che pensi?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1392dfbc5e5dec8bd433aabccc4936c6b025ae3ac29673b9dc647e270228f525. 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/GBF076040403.
Otello, Act III: Dio ti giocondi, o sposo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9ec9f2a01d3f77574dc022711f0a9d026ab90f12a86f74482f8d13972b19dc. 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/GBF076040426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f261f17b257f89d284ede0ee97fed1bb138b74ae7c3df7e6b0c773e85635dff. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GBF076040404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd346ccc95beb198a3ca4da9149066ea6a275c8668542f518f0aaca05c0f220b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44703aad7af68836be1fec6ad33c99c208fd99f08dd3927b4ebc3d0dbb3c46b4. 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/GBF076040405.
Otello, Act III: Dio, mi potevi scagliar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337aa69af7c625853d3b044f7337968cf248ba721b488abf5d6ba793a6dfb13b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040428.
Otello, Act I: Inaffia l'ugola! Trinca, tracanna "Brindisi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d453796f38ecdb04736ae5b26ece720f65519c1e2d37f7de1e510c0a20fa9f. 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/GBF076040406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bd5faf68a3918c2b18b0bfd3b4f356decc59b86441d62f8c691212470ccfe3. 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/GBF076040429.
Otello, Act I: Capitano, v'attende la fazione ai baluardi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6a2bee3d8c63924e50d08e64f07432cf6b161d6fe20bd772303ffc983e47cc. 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/GBF076040407.
Otello, Act III: Vieni; l'aula è deserta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ed421095b52ef6588678e2bb4fb4baac934bef2a5d24f246222ce2f59e84c0. 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/GBF076040430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69585154cdae1f93f474b0a91a4440ea068fb855867950e04802b9b6365a957a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040408.
Otello, Act III: E intanto, giacchè non si stanca mai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe20b1c002978b6ab3bb9eb7b8c1109b981166fb4bd19a2cc8bd42431be8d323. 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/GBF076040431.
Otello, Act I: Già nella notte densa "Love Duet"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc832b8c69dce860eba1d90ea69135bf320b34565fb954213f0dca2f56c5512. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97478f391062f17a7408330cfbfac5522a7a4c5afa91f3dcef21e09a57b9cfa. 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/GBBBA6051410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22a8e1099ee95bdee077fe62d99750a074ee4d493c7112ed9efeba5a66d1c63. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBF076040410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6473558bf98700cbe4d62e6d4cddb91b83e93e77f52e926f70be2d009f533eb. 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/GBBBA6051420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839165b91ba766f18aa8a5da4c723ddd8844da513b4d4d92203707d5ee0033f8. 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/GBF076040412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ec4064edcf7ab9956b6f6938b5a875b1b8c52f6fd97fca756f42b373efa9b2. 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/GBF076040413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c87bf9018f250de667d16477676f041a116e9f11abfc3cf081bb5b56dd2e46. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040414.
Otello, Act II: D'un uom che geme sotto il tuo disdegno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1aad223b713a8cd945e767c22f5c15f08dba30775a4ac065b96050d67e4b56. 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/GBF076040415.
Otello, Act II: Se inconscia, contro te, sposo, ho peccato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29d2c9c8b39843c1e742bd48a7c26871ce6673ce2a72fca6ec50c90846a8b3e. 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/GBF076040416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca766705c4838c5c77b1fd8d54491b552f1f1ffc826b82ec36e68e955b93a583. 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/GBF076040437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc28606a8e3d1300f3e7bd9acd7a713a05dc99350f77aa1b3602005c5b21aaa. 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/GBF076040417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba83e00cb6a48f305105033c105159150dee27fd79afc8556d33ac9c60eaa93. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040438.
Otello, Act IV: Mia madre aveva una povera ancella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170169934025cdc27b2aceddcdc517d9e0fb1cd6da35f9ffdc7ca42169f361ac. 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/GBF076040439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e257c84d8a1a521b22f80f3fdd9b3d58318a33656716b993b9397a9a8f8ade. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040419.
Otello, Act IV: Piangea cantando "Willow Song"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b6aaa1e57f8182be085877ddd6deb37f9172ea991d55adcf8c24b51edd5f6b. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/GBF076040440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002ee7c9962b50e1c289a217d95b7142199a37f6a5b995475e8213fd69207e22. 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/GBF076040420.
Otello, Act IV: Ave Maria, piena di grazia "Desdemona’s Prayer"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf859551a1c9c6d56d3dd65728bb76347f1aaba8e934129a25aee38abc0413579. 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/GBF076040441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121ff80853d14ac118e435bf2484b72053dcb120ef197277cbc4dbc16f909d8b. 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/GBF076040442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e2c0df06fa009268cf491b10d414e05dfaf4983624103f017dd354b6e21094. 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/GBF076040422.
Otello, Act IV: Diceste questa sera le vostre preci?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7d15c09a0bfd39413d23661eb74d3bf8c8288fb7f64d8544b9a507ba216fd7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076040443.
Otello, Act II: Si, pel ciel marmoreo giuro!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35474101df7d544fd56cf5c5821ab9885bf4e55c96594e468e40819acd041e39. 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/GBF076040423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61dbbf467d6b21ddc360f035fe76c459495b8b5ad1ead2e1833c0f74f6c3c0c. 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/GBF076040445.
Verdi: Rigoletto, extraits - EP (Mono Version)
Coro dell'Accademia Nazionale Di Santa Cecilia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d25219619f0563f311bb7156b83190f72f53d916bfb614b3df61fd7b31a2ce. 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/GBF075440701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733f198285a0f0a039b19f0c479395ede5aede3d3f63e7851d3d5da1437d481b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBF075440702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae036260844c67e9bc130aa24c71e768cb1f98f1028d6ecdaef5f59b1377493. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBF075440704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831a14df54fbd8caf2e050282c924516d08f0389f907a1cb863c82d6233b07b8. 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/GBF075440728.
Otello / Act 1: Già nella notte densa...Venga la morte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bbc16e716f438638f5988300c88b9f07af3f147b2ac47920e407cb3e354d18. 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/GBF075440709.
Otello / Act 4: Mia madre aveva una povera ancella
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Otello / Act 4: Ave Maria, piena di grazia
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Rigoletto / Act 1: "Quel vecchio maledivami...Va, non ho niente"
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Decca Sound: The Analogue Years 1954 – 1968
Il trovatore, Act I: All'erta! all'erta! - Live at Großes Festspielhaus, Salzburg, 1962
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Maria Callas Live - Remastered Live Recordings 1949-1964
Puccini: Tosca, Act 2: "Vissi d'arte" (Tosca)
Orchestra of the Royal Opera House, Covent Garden
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Donizetti: Lucia di Lammermoor, Act 3: "Spargi d'amaro pianto" (Lucia, Raimondo, Chorus, Enrico)
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Verdi: La Traviata, Act 1: "Libiam1o, ne' lieti calici" (Chorus, Violetta, Flora, Marchese, Gastone, Alfredo, Barone, Dottore)
Orquestra Sinfónica do Teatro Nacional de São Carlos Lisboa
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Giordano: Andrea Chénier (1955 - Milan) - Callas Live Remastered
Verdi Historical Opera Edition, Vol. 6: Simon Boccanegra, Aroldo & Un Ballo in Maschera
Der Rosenkavalier, Op. 59: Final Trio and Duet (Recorded 1954)
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Mascagni: Cavalleria Rusticana / Leoncavallo: Pagliacci
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Verdi: Aida (Tebaldi, Del Monaco) (1952)
Montemezzi: L'amore dei tre re · Puccini: Tosca Highlights