thumb|255px|Marco da Gagliano Marco da Gagliano (1 May 1582 – 25 February 1643) was an Italian composer of the early Baroque era. He was important in the early history of opera and the development o
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 0x94b68113a2b91ec6256d4c5674e25b110f313a650256eee4d798c09601096d4c. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aec1ee2f-face-4a2c-988a-41835c0a3e32.json and https://artists.proofprofile.net/proofs/artist/aec1ee2f-face-4a2c-988a-41835c0a3e32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stravaganza d'Amore! The Birth of Opera at the Medici Court
All'imperio d'Amore: 1. Toccata "La Renuccini"
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 0xc611c21ad044918736a9676a0281880a394aa79424df4f0a3d5152ccac0d35d6. 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/FR7JM1662010.
All'imperio d'Amore: 2. O fortunato giorno a 30 "La Pellegrina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb348ab5d4bf5325ea0436401e6cb74f70c7a55102b878796333253eb329c4d9c. 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/FR7JM1662020.
All'imperio d'Amore: 4. O che felice giorno a voce sola
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e495c698342bf3d0f8f47305a74d0b794e0e31a1ece78d2f192bf79bd2c14b. 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/FR7JM1662040.
All'imperio d'Amore: 5. Ineffabile ardore a 6 "Il rapimento di Cefalo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ce736e017e6eba8b2dfb8f5ee5c8828693bf61a6cf7c918394194bc37322ad. 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/FR7JM1662050.
All'imperio d'Amore: 6. La dipartita e amara a 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155107e319cc9160e0c65e566dd338878a0b1080cbe3b0b379854ef9b96bf75. 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/FR7JM1662060.
Le Lagrime d'Orfeo: 27. Sinfonia a 6. Spirto del Ciel "Primo ballo della Notte d’Amore"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29965e552f3d7006241e8620e7e7d509c822617706c94d1c9d92ee0f972d05df. 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/FR7JM1663270.
All'imperio d'Amore: 7. Ineffabile ardore a 6 "Il rapimento di Cefalo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbeaea7231554987ed715e29c933dec4b7409c70a03b11099b59409cc1a55a7. 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/FR7JM1662070.
Le Lagrime d'Orfeo: 28. Funeste piagge "Euridice"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ae407f87adde16cb576704c3eb4c7f18e3d4725e0d2bf8cef925d1a56cf5b5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1663280.
All'imperio d'Amore: 8. Non havea Febo ancora a voce sola
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c782dacb2454973a7f98e391d3cd032a417347fbe946cd2b2f67d6084c9fb50. 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/FR7JM1662080.
Le Lagrime d'Orfeo: 30. Trionfi oggi pietà "Euridice"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7921568f13774780e7f17bac113f4b12f012c4c827a32ec3c5b10f7bea524525. 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/FR7JM1663300.
All'imperio d'Amore: 10. Donne le celeste lume a 9 "Stravaganza d'Amore"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d2e5e6d57fbe1a4b2718a12b7a398134eba249380b3fb7006d8c43ac450e7e. 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/FR7JM1662100.
Le Lagrime d'Orfeo: 31. Gioite al canto mio "Euridice"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccee092a925e9de52d0cfad4c3e5d80c6e4dfee860c0fdb37f4b6ea47fb0adb. 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/FR7JM1663310.
La Favolla d'Apollo: 11. Dal vago e bel sereno a 6 "La Pellegrina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0c40b9e8388b86c8d72113a73cd558220a23f3590dffdd640f1303c6868392. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR7JM1662110.
Il Ballo degli reali Amanti: 34. Dolcissime sirene a 6 "La Pellegrina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf202938ca940b7372f7a21baeec9714fa4a7e1442a9a3e73b408c07d550b5978. 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/FR7JM1663340.
La Favolla d'Apollo: 14. Qui di carne si sfama a 12 "La Pellegrina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c1547bc25427ceff9297fb344e841e2a49f397d211ef02467c2a3d7c23c9a1. 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/FR7JM1662140.
La Favolla d'Apollo: 15. Apollo affronta il serpente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc917d4212454ce1acf6400dac47b9a54ef536920887a67b7d010d1ba175e7965. 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/FR7JM1662150.
La Favolla d'Apollo: 16. Poi giacque estinto al fine "La Dafne"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b14030f35e82b1a784b4a4c024896e2448f3c3d7b5223edcc56408f1765ffe2. 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/FR7JM1662160.
Il Ballo degli reali Amanti: 37. O che nuovo miracolo a 5, a 3 "La Pellegrina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d96a99ae9c7f4dce02ac3cc6f997e2a669dc9511aaab316565f7253661acae. 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/FR7JM1663370.
La Favolla d'Apollo: 18. Piangete, Ninfe "La Dafne"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785ddfa6231f59712dec1a01f353488626a5e16aa3e5ade97249250695939dd4. 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/FR7JM1662180.
La Favolla d'Apollo: 19. Sinfonia a 6 "La Pellegrina"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fd5c9477d2d1b5ced927aef62892e5d43a23e551b64b72c50ba9a5f227c8e3. 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/FR7JM1662190.
La Favolla d'Apollo: 13. Ohimè che vegg’io a 5 "La Dafne"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcc27a69822c17348d2bcb34d994ba1e249ff2a0290fdd468ea151f92ad9c25. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1662130.
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
La Favolla d'Apollo: 20. Un guardo, un guard’appena "La Dafne"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f20039284e11f22fed64fb77663db3da20ce62f99454149f611c34b648a053. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR7JM1662200.
La Favolla d'Apollo: 21. Bella ninfa fuggitiva a 5 "La Dafne"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaec5eeff86d0be4d5c1da90bd0ef0cce7e97fb8a110b7e28eb0fa812d19adda. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR7JM1662210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf82f0b1916d03c233e4c516fdfb417a2d2b968af53a8871b698595aec0d1edb. 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/BER189522201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c41b20222d24da7d3f3ae4b515f5fe96bf0559049f82e3995cbdb9beb0fa257. 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/BER189522214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa344115e3eaa4e06e6c47133c51d32f9b322b32581738af0808383f3fc3771. 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/GBF078542405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1131233d75e1f5e378ab151d5d3de503426686292c42a938163fbbe149913977. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES59G2141303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467b9417444e2f213f3d37d1b476ba3c443839dc6e902349f51ade2f4b9e5a4e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY322206003.
Il Canzoniere: La poesia di Francesco Petrarca nel seicento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f45de5a228b7839e44af2a1b5acd3f23a49a6c26f4a92b24b7dc2ec23df683. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560679930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf713581972195c71fac697546e700480504b60e99fed5aa3c8a79aa35f1efa. 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/USA560679938.
Lute and Vocal Music - Monteverdi, C. / Frescobaldi, G. / Negri, C. / Borrono, P.P. / Caccini, G. (The Italian Lute Song)
Doulce Mémoire: Musique Sacrée/Musique Profane
Henri IV & Marie de Medicis, Messe de mariage
Alfred Deller: French & Italian Discoveries
Frescobaldi: Messa sopra l'aria di Fiorenza
What Artemisia Heard: Music and Art from the Time of Caravaggio & Gentileschi
Giulio Caccini: Euridice — Marco da Gagliano: La Dafne
Da Gagliano: Missa in Assumptione Beatae Marice Virginis