Vicente (Vicenç) Sardinero (12 January 1937 – 9 February 2002), né Sardinero-Puerto, was a Spanish operatic lyric baritone. Born in Barcelona, he made his debut at the Gran Teatre del Liceu in his na
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 0x2173d35b3a32f3e78d0dfee5fff950cb772e46bb44dcf9d81421157fff39a763. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1671145b-e146-4fa2-be9c-da8bf87e615a.json and https://artists.proofprofile.net/proofs/artist/1671145b-e146-4fa2-be9c-da8bf87e615a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
La Bohème: Act I: Oh! sventata, sventata!
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 0x9c32485a24595b6aa95785ed6402f4c38ccef7225874d08cb39bf5e45c5cd9f1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19606071 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529596ddf2f6bcbee25ca05b149c5bcf3a5e8c2fed146c9e453931e9410e4211. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5026400163 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e500c42e171e0bace18e2ecf76f9b5d225e5ad10fd49e3e35287358d478c48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5026400153 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097390e193273c79bfd7551fb1e1f31bfa23564838f03a60ae3c66b0c189f27e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC17200131 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003cb7e35dbefd9da29efdd0d137738f810f3e8ef52fe9d9a4ce5dbc38de3b4f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE479800306 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b2a97e98a393288cd5a6816215ed4c1a97cf35c7b498ec98d52c80b26eee5e. 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/ES5029100056 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20b238102f9b96fc6f5f531c9fc38bf11ea2386d54d4bb2fb5abe077e9ef7bf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19606074 — a six-check JSON result.
Adriana Lecouvreur: Io son l'umile ancella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6279455a91467708639cd9b9239916bb7a452e380d3448fb1d5ce31f9a761990. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5027400421 — a six-check JSON result.
Luisa Fernanda: Caballero del alto plumero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4937c0187ea93b9e8d959ab64654ea70f1f317e3fe1b28675b739b1c8351063. 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/USBC10100188 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393bebed8a4416de69492d6d697f976b4e6357edd59e6df82568955f45c9fe39. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5029100086 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96bc71b16cc39995537c211dacce2794fcc170eea59fdca7d4f9d9d49823770. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5029100081 — a six-check JSON result.
Les contes d'Hoffmann: Act II: Barcarolle: Belle nuit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e0c087dd3337814b9fdbdd5c4992b722bd5af0305a413ecb1a0ab3c5d3c550. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16900174 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111f35eaa18ff1bf8fd223998d2e0fb3a1b713f340b6145ec19dcdae9993cd2a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE470000063 — a six-check JSON result.
Wiegenlied Op. 41 Nª 1 (Cancion De Cuna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91631152c7fd15d21931d9aff6fb4c5d4dcc3804bd7019675dce2cbe0f3693f5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5026400132 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd260e5408ca2c67b59be3d489512729b1bd98db00335d061649106aa87e2eab3. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/DEE479800305 — a six-check JSON result.
200 Greatest Classical Music Favourites: The Essential Classics
True Concentration: Classical Music for Studying
Ivan Klansky, Oldrich Vlcek & Virtuosi Di Praga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179879d94de99fe330b69fd3a5cfb7517e3b9601c9048fd2df5476580f18642d. 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/USRDG0112453 — a six-check JSON result.
In The Hall Of The Mountain King (From "Peer Gynt")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275f81bec5a3b375f5328a65f9e0d4e40e5a02d098851004d7ef9b5c6881907d. 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/USRDG0226563 — a six-check JSON result.
Air on the G String (from Suite for Orchestra No. 3 in D Major, BWV 1068)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d59e70f81035dd7e4cfdb420de55285537b2a97095475ddb12be58d8a01236. 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/USRDG0111843 — a six-check JSON result.
Madama Butterfly, Act I: Ieri son salita tutta sola (Butterfly, Goro, Il Commissario, Coro, Sharpless, Ufficiale del Registro, Pinkerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf332c04d33176e1966d42d0b042b26fbea41a630149d6053ad60cc9c868a44a. 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/GBAYC8600146 — a six-check JSON result.
Madama Butterfly, Act II: Un bel dì vedremo (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2f1c52d456bad167c4ea28b3b1553a396fa3bf6f77326219e90ad233284843. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC8600153 — a six-check JSON result.
Madama Butterfly, Act II: Humming Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5728ce99764c5989cea4d3e6154d43e9410cf997201cc25b2990ac9a39d23885. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600165 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb674b371478cbf87c2fa647c8cc3ca945aff9cf3dd0ce918eee376d38095d2b7. 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/GBAYC9100337 — a six-check JSON result.
Manon Lescaut, Act II: In quelle trine morbide (Manon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343f4a880efb1ce7a77d99ef75e488dcd190d340195b84ae4d70f184aaef608e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9302388 — a six-check JSON result.
The 50 Absolute Essentials of Classical Music
Le nozze di Figaro, K. 492: No. 21 Duettino: "Sull'aria?..Che soave zeffiretto"
Orchestra del Maggio Musicale Fiorentino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1b67e852e4d203fa0c4e60d85f009e129c428026ca80c05195180e0dbb3cb9. 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/USSM10102306 — a six-check JSON result.
La traviata: Act I: Libiamo ne' lieti calici (Brindisi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5698dcf40b842975969ed35e30b7a94fb3c45ca64ef02d57a789fd354bdf1e77. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200827 — a six-check JSON result.
"Un bel dì, vedremo" from Madama Butterfly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe69e6420b03d8272450571ea85c8e4591f10bd62feb4931e9a7aedfefdecc5. 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/USSM17800387 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbae0226d8f41a64ff7e36dbfe0697e577d2bb695151cf0ba9ee6f6e7e1b03b8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19704782 — a six-check JSON result.
The Essential Montserrat Caballé [International Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe44b1b1b32b1dd25a62f764c504ec729ff70c4e51d9a8c5e9007d4df57f9af1. 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/USBC19606073 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20b238102f9b96fc6f5f531c9fc38bf11ea2386d54d4bb2fb5abe077e9ef7bf. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19606074 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99856bf92ed3dc4fb5d5191d295d79f11e190cfaf469ad53c9c31c7f59128942. 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/USBC19606075 — a six-check JSON result.
La Traviata: "E strano, è strano!... Ah fors è lui"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb42b8ed71f8b5251152cb2003aeb22b8573c962d3abee05993433408dc45bbb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700142 — a six-check JSON result.
La Traviata: "Follie! Follie! Delirio vano"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda973ccbcf4acb28f7b691860895240de2b8da28a91337ba26748260039b97b6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700143 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15023f79cc9d2eae21cc64af059b0252c2bfc5d67f82d94583cd27d37659d745. 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/USBC16700144 — a six-check JSON result.
Adriana Lecouvreur: "Io son l'umile ancella"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6279455a91467708639cd9b9239916bb7a452e380d3448fb1d5ce31f9a761990. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5027400421 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b0c02d46dfd3010f62c08680246b69e60cccda7af5d21c406ea5cdaf83cc75. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700112 — a six-check JSON result.
Lucrezia Borgia: Prologue: "Tranquillo ei posa... Com'è bello! Quale incanto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9582cdd37ab3799093c28dca018da6422316262bdf723edabec326dca38be8dd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16500217 — a six-check JSON result.
Semiramide: "Serbami ognor... Alle più calde immagini"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d8ec3c5a162b5cf420c9a2ca604ffa88637109715842820a7db197d013f46a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16900178 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097390e193273c79bfd7551fb1e1f31bfa23564838f03a60ae3c66b0c189f27e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC17200131 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554a28e935385e220a3a1219c90d427374e242234079ea640030da4a6c4b95ca. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8800934 — a six-check JSON result.
Norma, Act II Scene 3: Qual cor tradisti, qual cor perdesti (Coro/Norma/Pollione/Oroveso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaca2373d8b914833a5c54a61d371cdf3375b26d084e7cab3a81b1cd1909fd55. 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/GBAYC9701154 — a six-check JSON result.
Belgian Radio and Television Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa532a57847d6de341fd270c58d7da15071b5b4e839a8c1f7829ce96422adb301. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290101 — a six-check JSON result.
Manon Lescaut: Act I: L'amor? ... l'amor?!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3107172f9b659992ea8645cadfe7aa5588e35360e4038a27dd68ed65cf329a89. 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/HKI199290102 — a six-check JSON result.
Manon Lescaut: Act I: Tra voi, belle, brune e bionde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e7ed7bfdfe4cdf69ea375c7f73825d9e043d64263a7ee3c1abaa04779501df. 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/HKI199290103 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8a0fae9be9e754664d3add3bd15443cbad73d5999d7f821f04f401686b1cbe. 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/HKI199290104 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9dac1b97d9d364b188a96ce2bc87c49d238e82de5f73aaf43e8a437b771c7c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290204 — a six-check JSON result.
Manon Lescaut: Act I: Descendono, vediam! Viaggiatori eleganti, galanti!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffd93b398be34a8c128723ca1656604fa6aa03d2e4e07f55149743a6ad82723. 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/HKI199290105 — a six-check JSON result.
Manon Lescaut: Act I: Cortese damigella, il priego mio acettate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778945ab1d106507e298408048540908095fbf71f551a292a19ac7b52c286a1e. 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/HKI199290106 — a six-check JSON result.
Manon Lescaut: Act I: Donna non vidi mai simile a questa!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab5213d6a14a180866aee7ad3aeb1fa45b9274c357a2cb301f3fdebbc8a7bcd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKI199290107 — a six-check JSON result.
Manon Lescaut: Act I: La tua ventura, ci rassicura
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca06def46dee176ef3cede0785e216b947aa7fc0c62e1847d845d653e0f2c6d8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290108 — a six-check JSON result.
Manon Lescaut: Act I: Vecchietto amabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a0f30854e28d1f8c5bd62b64e7888e6fb8ee102f40158a42890d1b8138146. 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/HKI199290109 — a six-check JSON result.
Manon Lescaut: Act I: Vedete? lo'son 'fedele
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa5ebcb5aa6e6a16be786f09047db911543953c019813c9ba75264ef32cca52. 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/HKI199290110 — a six-check JSON result.
Manon Lescaut: Act I: Non c'e piu vino? E che? Vuota e la botte?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe0b2dc7491664cdfa9277d98ee2225794b641e61eb09abb920acd77de95215. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290111 — a six-check JSON result.
Manon Lescaut: Act I: Di sedur la sorellina e il momento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae0af7be4c344d3c7c7955d7698a68865d812ecae3bdf06c22d61c52c23fe60. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290112 — a six-check JSON result.
Manon Lescaut: Act II: Dispettosetto questo riccio!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f633247b05932d050ad7272efab6205c5a3db79bae24779ae09112b1bb12fb5. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290113 — a six-check JSON result.
Manon Lescaut: Act IV: Sola, perduta, abbandonata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a332f6df1748a6e9011ca3e2ce3be10732348176f5cbe275c134c4e1a27ed6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290213 — a six-check JSON result.
Manon Lescaut: Act II: In quelle trine morbide
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde056bea8a4fd2e816b7a25fab3965ec5aa55a519159f29123714b48319ed0de. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290114 — a six-check JSON result.
Manon Lescaut: Act II: Che ceffi son costor? Ciarlatani o speziali?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257fdb49caf885e5ae85a475a771bf1dbd179c5e90134ab964210b91b826a6a6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199290116 — a six-check JSON result.
La Zarzuela "17 Grandes Momentos Del Teatro Lirico Español"
La Revoltosa - "Dúo De Felipe Y Mari Pepa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd23a625aca0bad27bb5ceff8d930033d23e3f6cd8c64a6ca7b5b2cc965fcb99. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESD010800187 — a six-check JSON result.
La Zarzuela "50 Grandes Momentos Del Teatro Lirico Español"
Pagliacci: Recitar!...Vesti la giubba (Act I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5bd0bc661c415213b625af5c029d4eb2cedaedc477232ff3922b640d6cb4ad. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602335 — a six-check JSON result.
Giacomo Puccini: La Bohème - (Highlights) - Sony Classical Masters
Basic Opera Highlights-Puccini: La Boheme