1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c93d45839bc6580cf2a1d6a500cdc2a9d2ad9622372afe7d1088097a9490ca. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3af082e6-d2f7-487d-abcf-0a6646ae7460.json and https://artists.proofprofile.net/proofs/artist/3af082e6-d2f7-487d-abcf-0a6646ae7460.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rossini: L'Italienne à Alger (Les indispensables de Diapason)
Maria Callas Live - Remastered Live Recordings 1949-1964
Madama Butterfly Lib. Giacosa and Illica (1997 Digital Remaster): Un bel dì vedremo
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a49471548b6a39bccd32e026eac6247cbd45e8be03c3a5aa888e44519722438. 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/GBAYC9701071.
Puccini: Madama Butterfly (1955 - Karajan) - Callas Remastered
Puccini: Madama Butterfly, Act 1: "E soffitto... e pareti" (Pinkerton, Goro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e14e3ff33058e5c8ae5dbaee95e454eb2579e46e9d119a523f0d6ac3db170fa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400662.
Puccini: Madama Butterfly, Act 1: "Questa è la cameriera" (Goro, Pinkerton, Suzuki, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad978638decbc2afc589fede33ae0608cd41a0190eee126da81311ff38f1a50. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400663.
Puccini: Madama Butterfly, Act 1: "Quale smania vi prende!" (Sharpless, Pinkerton, Coro, Goro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3403aed5316e2353888b27b61602bb4956ba65c3b352937826735750839cd2d1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBAYC1400665.
Puccini: Madama Butterfly, Act 1: "Ah! Ah! quanto cielo!" - "Ancora un passo or via" (Coro, Butterfly, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e130469b0485b4b1b2d44ffb8920023cd0ba6f383307e27a320fee41d25021. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400666.
Puccini: Madama Butterfly, Act 1: "Gran ventura" (Butterfly, Coro, Pinkerton, Sharpless, Goro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a11b943d880be342a49b149edc585a96d1f2a30c2b6e1c62287e124371a664. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400667.
Puccini: Madama Butterfly, Act 1: "Vieni, amor mio!" (Butterfly, Pinkerton, Goro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1a47df8c0068a0c80d9b83cf39d815938b4a3e161961206e46bd3a4c8bb7d9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400669.
Puccini: Madama Butterfly, Act 1: "Ieri son salita tutta sola" (Butterfly, Goro, Commissario, Coro, Sharpless, Ufficiale del Registro, Pinkerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f15b1e18b7230850785bfd5ed83a437654f3353168bcae282229de0638e5f9. 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/GBAYC1400670.
Puccini: Madama Butterfly, Act 1: "Bimba dagli occhi pieni di malia" (Butterfly, Pinkerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749a7f7aa2408af594ef8d35a98c4fef6eeddb8f83a92edd3b86d9a2e4ed9b30. 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/GBAYC1400673.
Puccini: Madama Butterfly, Act 1: "Vogliatemi bene, un bene piccolino" (Pinkerton, Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7937b27326a8d955b83e75f2d8c88a247fa474d602c6b8223c67f61f1c0ba448. 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/GBAYC1400674.
Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d1e062be4e02cfbc06579cd8b4e343f1301246de6121204f3b567a0d2d943a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400676.
Puccini: Madama Butterfly, Act 2: "C'è. Entrate" (Goro, Butterfly, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51eae18a409deb4a2933d39d9814a76b713a1f423ca0df1a7e175bb9ac18ad02. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/GBAYC1400678.
Puccini: Madama Butterfly, Act 2: "Ora a noi" (Butterfly, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9307804421ba8956e8aea6d357afdcb45448db02a73a1e9d8e726bda837572. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400681.
Puccini: Madama Butterfly, Act 2: "Che tua madre dovrà" (Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ac6c70ac434a8bfbeca0124cfe60a833811cdb0b4853ff6db2ade31060d305. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBAYC1400683.
Puccini: Madama Butterfly, Act 2: "Io scendo al piano" (Butterfly, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee2968ea0828124f16a6c8dfe7ba7b4e8046585412ac6e685834daf6b30e881. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400684.
Puccini: Madama Butterfly, Act 2: "Vespa! Rospo maledetto!" (Butterfly, Suzuki, Goro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56575e86704c71bf53f40c66e34ed8a15a05d253a183e5004659e30630213731. 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/GBAYC1400685.
Puccini: Madama Butterfly, Act 2: Coro a bocca chiusa (Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67882b1666e533ee5ff1519326f9dee623d148e4b6e11fce3bb2fe95519f2ae3. 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/GBAYC1400689.
Puccini: Madama Butterfly, Act 2: "Oh eh! Oh eh! Oh eh!" (Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac20fd727c36b7ba58b767ca83cbca0401e4f7b7eb3824ca2e0fa6b0219b8975. 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/GBAYC1400690.
Puccini: Madama Butterfly, Act 2: "Glielo dirai?" (Kate, Suzuki, Butterfly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8040606ad38c318e06fda09c48c751ce3a076f08daf81a08cf1b5cce21dced. 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/GBAYC1400695.
Puccini: Madama Butterfly, Act 2: "Che vuol da me?" (Butterfly, Suzuki, Sharpless, Kate)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9698755fbeba0c4b60bfcc9a217f33a93d9a422e173655ea3b8878f093fce3. 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/GBAYC1400696.
Puccini: Madama Butterfly, Act 2: "Con onor muore" (Butterfly, Pinkerton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206cd0fe62be44bb1fc01e38595dc7558d300cd119b41e3746bba02af0e180cd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400698.
Puccini: Madama Butterfly, Act 2 Scene 1: "Che tua madre dovrà" (Butterfly, Sharpless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa377b09224b1a827c0266d2c7c8b6de9e754352b243caa823e6e20135f85b734. 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/GBAYC0800986.
Puccini: Madama Butterfly (Callas, Gedda, Karajan) (1955)
Zandonai: Francesca da Rimini (Mono Version)
Giordano: Andrea Chénier (1955 - Milan) - Callas Live Remastered
Rossini: L'italiana in Algeri, Act 1, Scene 4, Finale: Nella testa ho un campanello (Tutti)
Coro e Orchestra del Teatro alla Scala, Milano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3198dfc27641dede2f376b4cdd18e9a169bde477c188eb2e5db465707dcc0efa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9103838.
Rossini: L'italiana in Algeri, Act 1, Scene 1, Introduzione: Su: corragio, o mia signora (Haly/Zulma/Elvira/Coro/Mustafà)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e0ac1f33a43b9a95e6a012edad786c6bb8dcd0566fecee4ab056c765720aef. 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/GBAYC9103820.
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
Cherubini: Medea (1953 - Milan) - Callas Live Remastered
Cherubini: Medea, Act I: "Nemici senza cor" (Medea, Giasone) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc034dcec1e758b761c4a6c71611d1e5bb55370e03ac9babc7d7428d2e0d4493f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPFW1700171.
Gluck: Alceste (1954 - Milan) - Callas Live Remastered
Rossini: L'Italienne à Alger (Short Version, Mono Version)
Puccini: Manon Lescaut - The Sony Opera House
Rossini: L'italiana ad algeri (Finest Selection)
Puccini: Manon Lescaut (Albanese, Bjorling, Perlea) (1954)