Marchetto Cara (c. 1465 – probably 1525) was an Italian composer, lutenist and singer of the Renaissance. He was mainly active in Mantua, was well-connected with the Gonzaga and Medici families, and,
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 0x34ae22543cb0487d1034aff4c774dd79a033f110543a0ac47ee5da1ca209bd0c. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8636f82-78de-4390-b852-5b4bf2d0b65a.json and https://artists.proofprofile.net/proofs/artist/c8636f82-78de-4390-b852-5b4bf2d0b65a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Cradle of the Renaissance: Music from the Time of Leonardo da Vinci
Tromboncino & Cara: Dialogo d'Amore, Frottolas for Isabella d'Este
Ostinato vo' seguire: Ostinato vo' seguire
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 0x80c9adb5210fb5f181edafdc3520f4949b4355d24e121b74e2c69a8262a8e92d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BEE640514301.
Chi passa per 'sta strada: Chi passa per 'sta strada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c293c0244ea1eeb4fff9db1bbd2fe73be7550585415850dc382c74ab7ee6efd. 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/BEE640514302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf525848c40e61a01a16fa4213a77195a1110f7ede0178f0c9eea91e9d0b1e58d. 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/BEE640514306.
L'amor, donna, ch'io te porto: L'amor, donna, ch'io te porto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac412cc3ba0cdbf8c489b18439c6f188982c260a8d5973995e86493453e7b23. 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/BEE640514307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953f7ec3b25afbe073ced029c1aa20496159b7d93b11eb98e1f5c4c963862a86. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE640514308.
Pavana e Gagliarda "della Traditora": Pavana e Gagliarda "della Traditora" - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422ca7b097747689502d986f4adfc7de189ffedf2fda6604e94e05a8bd7e197b. 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/BEE640514311.
Per fuggir d'amor le punte: Per fuggir d'amor le punte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6538ec7f9b119257213364a5f5ffd85c6191fc5f385a5c587a725b157fd654fe. 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/BEE640514313.
Capra moza sonemus et cantemus: Capra moza sonemus et cantemus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b843a5c6543eea728525864041ba23bf645626c17375ec75eeaaca41be63935. 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/BEE640514315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c277484af1fdb5b3a63c9041f0a6feecfe7fbbd0806e6341ff633cf227c2df. 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/BEE640514317.
vv.aa.: La musica nelle lettere di Isabella d’Este
Renaissance Music Recital, from Italy, France & England
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624830f1bcc92293ff2d385cad0f75a36f3c0ded9ad05366bcc7ff3742293070. 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/BER181839502.
Alla Venetiana - Early 16th Century Venetian Lute Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cde0b8da794e88f2b3f309ec200cf66cf084ff896ce7af90de57312ede262f3. 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/USHM19721502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccba76f61b7b42da44f586a38ae45c81313aa8f4811c4693eaa9be2e322e9ed2. 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/USHM19721504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e51d494e5b771949361095a5ec06ee25fc2a729046da21e84f760d2c034858b. 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/USHM19721506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17232d734eab72a08af505c877f27c42a8777113114a2965a653ef805744f26. 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/USHM19721508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959b29fc3164768a367c0cd2b855970e8e7a51e66cc5df06f7630346dc848d6a. 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/USHM19721515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c2131f3b80140309b8a8e58d69bebe057b17c18beb5eaab9e751234bb15d41. 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/USHM19721516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf9c118d430775f99b3998bb36aa4ff2119aaca41534776faa0bd0f84659e49. 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/USHM19721517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110d1cd50f06a9d6d0d1939cfe73003625dee5d59b4affbcf48d4fb692a6841b. 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/USHM19721520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ec0cbd2625dce746b1862b0f19de7cad45fd75170f7ac90d21024839e70b57. 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/USHM19721528.
Saltarello ala ferrarese - Intabulatura de lauto, Libro quarto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f8def0b3629c7254770d2fb4a53bb657e16ba402b03b45f8b00573c1b24238. 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/FRZ132212010.
Recercare 6 - Intabolatura de lauto, Libro primo, Libro secondo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b3006bf4280c792b7bf43ef1e5b77343da797445690666e8e7fc97d5b5dac2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ132212020.
Recercare 13 - Intabolatura de lauto, Libro primo, Libro secondo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56688f8632f64661ea3610f15b8b0ac7837eb6e6254a14b5ed47c18280dd8948. 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/FRZ132212030.
Recercare 23 - Intabolatura de lauto, Libro primo, Libro secondo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d1bee6a02435c334cb1c80011c80d2eea9a2a2a130816af5eade77ba0513aa. 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/FRZ132212070.
Pavana ala ferrarese - Intabulatura de lauto, Libro quarto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe839dd3429f0aa538b8b5547543f5fdf2080a5ffda37617a6377dd35bc3a7374. 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/FRZ132212090.
Poi che volse la mia stella - Intabulatura de lauto, Libro quarto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb8afec3c5720d0719341fd9218a307afe40428e75ad156ea8bba1e52dbda31. 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/FRZ132212110.
Pavana ala venetiana - Intabulatura de lauto, Libro quarto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0885407a583154e40fc466863d51ca177b1a5a3080098834dd7419d5740e964d. 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/FRZ132212140.
Saltarelloala venetiana - Intabulatura de lauto, Libro quarto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6201abf8a0bfb51947589434bb1978c647f00d15f89c442f1e00014abbaaf347. 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/FRZ132212150.
Piva ala venetiana - Intabulatura de lauto, Libro quarto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff0258465d4289144620d6632112edc131a959565a9189aaac551a6348a5324. 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/FRZ132212160.
Recercare 9 - Intabolatura de lauto, Libro primo, Libro secondo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7595cae11dfb5822cd8d2450dbf11b850bcc59a9d8d51c9d368c8cbccd505f72. 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/FRZ132212180.
Io non compro più speranza - Franciscus bossinensis, Libro primo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdf9b526cf5953e89e87c043389c73f47180853f9524a4c9350a30c2e270d6f. 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/FRZ132212100.
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 0xd923c940f7936458c193acc82bda307577d1266ee2927fd20dc8e8b3c6f4e9a2. 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/FR50X1845601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b78b5d8badb2169644998386dc9e9012872fb0b94a16370b0f8baf826564df. 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/FR50X1845604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d0cb76d15ea78b0dd615526b7eb9afcb25326394cdce34ca84abc553ce9db9. 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/FR50X1845608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4f48c99be77e17dcd55848363b64c8cb94e97f012bd2f047f58e2a3b5faf06. 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/SERKA9302050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fff9ce7bd30d24d214dd9b6767889c845a453ec19c930c74bf2d092e59e4ea3. 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/SERKA9302120.
Renaissance Music from the Courts of Mantua and Ferrara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176f5860001b618030c980b54f7ebb387c68dcd81bb50c0bfa289356f5e2f83b. 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/GBLWD9101003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8853ce61641c0605c64910c1ece68ec6787c1b5a9b645e205d3f766447eb2184. 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/GBLWD9101004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd68d4a03bdd00e9191e5e508926cd5c1892b9f2e5c3ceb04d8d15139308d57. 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/GBLWD9101005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa612bf44b0e84a757a52b849492c14bba489c55b8eaae43c28e390445de229f7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9101007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d99fe93f1240ce78db7dc7016f25b6927a74ce31d79cc5bc050b4793ceb139. 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/GBLWD9101001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633f48ec69976eae718c7e4d0194dd40eef1f6c8e7b6e7dd00c8971b25f3c8ad. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBLWD9101006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6f50e766975118c7295f3288310530eb309317e1f72468a85195501d87b1a5. 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/GBLWD9101008.
Bossinensis: Petrarca ed il cantare a liuto
Petrarca: Chiare, fresche e dolci acque (Petrarchan Lyricism and Music - 16th Century)
Frottole: Popular Songs of Renaissance Italy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09408c994acf882f8c2c08c43b55a23ea489158d9c741f58ab296d39173a7dbe. 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/HKI191405114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3aaffdd089b5528574bcfffbb186d3900d51afc3f39b9a81acf9d080e2aa1bd. 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/DEE471800298.
Lute and Vocal Music - Monteverdi, C. / Frescobaldi, G. / Negri, C. / Borrono, P.P. / Caccini, G. (The Italian Lute Song)
David Coffin: Live from the Revels Stage
Art & Music: Raphael - Music of His Time
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Art & Music: Da Vinci - Music Of His Time
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Antico - Moderno: Renaissance Madrigals Embellished
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Per cantar et sonar: Arie e danze rinascimentali
Vergine bella - Italian Renaissance Music
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Fermate il Passo: Tracing the Origins of Opera
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Barzellette - North Italian Frottole of the Early 16th Century
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Indecent Music: Myths and Stories from Humanism
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