Massimo Marchese (born in Savona, Italy) is an Italian musician, lutenist, theorbist and recording artist. Biography Born in Savona in the Italian region of Liguria, Marchese was a student of Jakob
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 0xe928dd5d82a646e282dc35336aa6e048fde484974ae8dc4a677374e845c45371. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f58e6d1c-8561-4ed4-a6f5-dbd2047339b0.json and https://artists.proofprofile.net/proofs/artist/f58e6d1c-8561-4ed4-a6f5-dbd2047339b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De Visée: La musique de la chambre du Roi, Vol. 3
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 0x2cfbf4247126f2699c2e41aaf4e6a523f11151970608f6ff5a4fe1af022ef46a. 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/NLY331507309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb90a5189170ece74993ecf2d64fb6344e32f0de90fc4757c82f2f63f513d91. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa121ec8f5bd484692646565217f60cd745bd96cb70553c7bd1284265d7982a78. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/US8271200454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01cf10405f32f8c512f95eec3e650e21ec9fe0a3a1dbc3a61034ddd8ca844e3. 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/US8271200455.
Libro I d'intavolatura di lauto: Toccata No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495ea7fd319408b187efd46d41de370edc4309037d4120977ffc4e78e6542794. 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/US8271200456.
Libro I d'intavolatura di lauto: Corrente No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f5c8cbb705ae443a5c1081002b3dc23f0455c1d6dc1da3fec5ac0d3d357eac. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd438c795fac04a666079fcef8aa3ad01a09c2a5e844bc34e667adb9ed169dec0. 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/US8271200458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf82dafefa8dcdac438d142bc43a036922a314ac2f0a02a025a195842580a3f1. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/US8271200459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc26506bb72259a5dfb650b17952c56c29f6b364511cdfa4a4d961858c397eb7. 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/US8271200460.
Libro I d'intavolatura di chitarone: Toccata Arpeggiata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792febf93640e8c073ccc0ac4a33bca45a99c5571447845ce2a1cce9ad4a6f5e. 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/US8271200461.
Libro IV d'intavolatura di chitarrone: Kapsberger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55a965043615c8f3d0304ccf8a4465a382830f66ce3908cf58042ca9a34e05d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200462.
Libro IV d'intavolatura di chitarrone: Capona
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564ec0b0473f70f7e5aea9c0d29b266db264d8ad0b874dce32549d187ec9c53d. 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/US8271200463.
Libro IV d'intavolatura di chitarrone: Canario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e0c2b2f15e3cec8e77a0997792fc33adc122245c3c5f2c006e1aad9cf99423. 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/US8271200464.
A port [Rowallan and Straloch manuscripts, 17th century]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064b02f3d7447b9150cbd073fdb0c4c23fc4fd2fa528f99076bf883055276496. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/US8271200465.
A Scotts tune [Rowallan and Straloch manuscripts, 17th century]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6982c900ace35cd6232aae0fcef8f64486570bbd280d20cf96398a749d3838. 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/US8271200466.
Gipsies Lilt [Rowallan and Straloch manuscripts, 17th century]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfd5e4a1d4964e4b80a8b7da17dd5e87f55765f6a32a13d3ed7d0e15128868d. 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/US8271200467.
A Dance [Rowallan and Straloch manuscripts, 17th century]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd11e5c1fa908301c420c702f513888f63ccc74ff08c779d2e03f260b52607d7. 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/US8271200468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21ecf6a680e873e082edc68f52383e18757acc6a6c780baf3501a51d6fc2436. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28753204f66936a6b1b34f3734261de81bc520e1f2abc966620aff8b63a0d727. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf72b31e6e9fe3edeea0c7fb5053f4737616d303b598f125e9fc23e167a2415. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac03797ddd18e66668c03a70563aa757ce725931e7c7e2ada32ed966c12e3a8. 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/US8271200472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd56dce7a3f1e5f03128134d05f0719054e0d0d50a11b64048f49f99d989352. 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/US8271200473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14c020d8001220d1409fe6362c8819b5f73f4ab902eaeeb15cf2d76aee3ddcd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c47cbd56ce69f49777001e0ec123ea0c172c3a1334e0f9f77badc3802611270. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e44174647adf62694e460409d99b37e07153d3191c399394fbffc68d20ecfd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8271200476.
Italian and Spanish Music for Vihuela de Mano
Amore la sol mi fa remirare: The Music of Leonardo's Age
De Visée: La musique de la chambre du roy
Abel: 6 Sonatas for Viola da Gamba & Bass
Sonata No. 1 in C Major, WKO 141: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9717d80d5026baf28559726a1e0b9dc188607ea858bb7184e44784972d85b02. 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/NLY332200715.
Sonata No. 1 in C Major, WKO 141: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c7cc2b27ed8a5787469bc59f3b90d35f3ebeb3633885d58712aef74a666e17. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332200716.
Sonata No. 1 in C Major, WKO 141: III. Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb5bbe9ab4a8015b0b3c46c5a987d01906fb53f188cee60e09d806a30445c67. 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/NLY332200717.
Sonata No. 2 in A Major, WKO 142: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad19c8dd3432d940b1c8d1e2c10e30f912e2958d0d0190701c0b43cf99705bc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332200718.
Sonata No. 2 in A Major, WKO 142: II. Siciliano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296607b5aa3a0cc6d6eb8db7cd36c7cda9bac829888df9bd7b18db513ef169f9. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332200719.
Sonata No. 2 in A Major, WKO 142: III. Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cc857d5cc501ef281aff30ef7dcea3810bc3f32d52752bafa930b999c5d214. 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/NLY332200720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05daf3dc108c37ef830437d6e12497c793e4d24dc6684b6bcd4201d04b3d126e. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/NLY332200721.
Sonata No. 3 in D Major, WKO 143: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6b2ba6d5a6e0c03797627cb43c51d51e0175b5e24bc634368e7ddec8aa84a1. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLY332200723.
Sonata No. 4 in G Major, WKO 144: III. Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ed45ef7b5c1df71c3ec2136b16dafc10f192b8c757a3367675abdaecf460c5. 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/NLY332200728.
Sonata No. 5 in A Major, WKO 145: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dc4513029238bc89d784f3e4f2ae4af3d006279bdbbe0d359eedeebe1a55c8. 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/NLY332200731.
Sonata No. 6 in E Minor, WKO 146: I. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718a755f8f4ed7305afd00a491f1a2544b30b74b9f07d8cc608775657b487ae0. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332200733.
Si la Noche Haze Escura (Villancicos Desde Cancionero del Duque de Calabria, 1556)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0eea4adfa0c6a4a15996375fa0a24d0c1c022d794812363305d345b71c0b2a. 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/ITK601802454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba7214c9b983d71feec16c572b3364b6cbfbe9fbe16295823a8a6011376c1eb. 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/ITK601802455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0e88ebf5ee2099ec0d9939b241f6fb3cad3065a908f518700df1fdd50c46ff. 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/ITK601802456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c8c1fb08de440c195ca87e78e5f9b29a7aa7e0fb6c090b848c25eb557c9be9. 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/ITK601802458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d14934cfb8161c2230785c8ce726d3aebfdb8c97d99b629f9c5aa4926070d3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ITK601802465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09434a1a99731b3fb681f99420cbd51ee1b48889c9c3502ca4ecdf4353ea293b. 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/ITK601802472.
Joachim Van den Hove: Florida, Pavanas, Fantasias and Dances for Lute
De Visée: La musique de la chambre du Roy, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860bb3a302c12957f3d8fec2e3034338284518752c5d0b90a60d9fa3ec11bdda. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NLY331304693.
Bossinensis: Petrarca ed il cantare a liuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca64f6ba5dc1c3e5df2d59a9033a50d8ede2a9033594fc5279dc01c048db2d4. 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/NLY331903742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5fe21cadf88358c558fe5acad690d14656253565df5c2e152024c6d7421dc8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331603266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd075bfb191cbfb73061ccc0775ef5f19b8a1819a58221a92863ace1a070eccbe. 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/NLY331803769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bcb0f225c88e6d4cb13be48c5bb46fd62b473854876361647744637e60ad90. 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/NLY331903732.
Sonata for Lute solo in B-Flat Major: I. Fantasia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0c421ec44f4dccdd0e5c27b9d0eef544726b93590c58a66e9321c1f1647bc2. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332104656.
Sonata for Lute solo in B-Flat Major: VI. Tempo di Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a34e55b4d59d17e3b4d44aa0949fce3bba272f2b8b351287b2038e61e05d1c1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332104661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d963e4d8038ea81a5893b36851252960eb615629ed2b43159e5f6a4b7e6f79. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331704799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c515f66a4906b7312932a51aa49fbef0f364e67b7a735c5551c04f6ba1c0785. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/NLY331703167.