Francisco Guerau (1649–1722) was a Spanish Baroque composer. After being born on Mallorca, he entered the singing school at the Royal College in Madrid in 1659, becoming a member of the Royal Chapel a
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 0xfbb2e0feb4bb883e5862baf121f1e5bedb183bfba198a67aab9bb5f93ed06e62. Chain 2 (Bitcoin): anchored in block 953846 (2026-06-15T22:48:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00a47314-e279-470f-b901-c632727df6c8.json and https://artists.proofprofile.net/proofs/artist/00a47314-e279-470f-b901-c632727df6c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Partita I BWV 1002 In a Minor - Tempo di Borrea
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 0xb45cddf5d2d8457e672676de2c7c9e3923906fbee839b6b943da69c383e2c587. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ139900221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e1d96c9415ee3fbbd54aedc62720b3e6bb016eb841a2c914569acdc46f3f12. 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/FRZ130400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a277b57ca94f22f60274bde4b3617116c5fff6ac608d1060445f2504a426854. 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/FRZ130400290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45439072813b6838acade40c57f381b4de9864c12acab3f1bbee1b8410a6c2eb. 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/FR47Q0702490.
Suite for Baroque Lute BWV 1012 In D Major - Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315f9f4c6555518257c26a7282f07c2ee54d70769b50c1267fd3d6dd5a79ee3a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRZ139300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f393ed1f485cb23a2bc38c3c018333508c59a42136df341a6fc3295c705d5c4. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRZ139702061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d893d66be1d51ad84855fa44eeeeacabf863a6a553f5fe005015b6b1e4a0c1. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRZ139702063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62ae1ed63aa3db20b409f915372f156af469ef5d3a39250f6cca88eca4909f5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ139503990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5cb5295ce238b6e4dc83f08e5cccd96e747959dd3f8861d5820d73924c7635. 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/FRZ139504110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c5cd77a3a7b331bc019470b5dc966ea44b849e631042f970baf7a5b7d200de. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR47Q0702500.
Veynte y Dos Diferencias Sobre Conde Claros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed282a81d6c78bede09516dab31d0eabe989c609d4da58c8dc2c8bb83fa62f3. 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/FR47Q0702510.
Concerto In a Major for Lute/2 Violins/alto/cello - Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ce359b033437b23c08deae6191c5c82f9db431900e4d44008c213fe1cfde09. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/FRZ139801372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7cd2bf84d43bc5404e5eb9547aeb4bf918589c59668a2632ead622dc05cc25. 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/FRZ139500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293b9139fdcbc2c83a7d7fb2c2da0c896b3571442702c97543b6ca7e3faa1c39. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FR47Q0702520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e7fbcb5865543b924e10bfa44a11bae9234303b56ce4d9a92a3aa7b83a20c1. 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/FRZ139900171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6983f64f33f5a7c7c9e324e7a302370ff8bd6ec615e15bee883c857158638561. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/FR47Q0702530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e5ae3a0e6848b91ac23f08ad1df30ae90dccfa2ef305c7b85034921f70f705. 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/FR47Q0702540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fee290ef11a01d4038ad117640cae023e671c63e52e643a7d8f55dcde3099c6. 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/FR47Q0702550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50d885ba6ca30550941e1e64faff23f90ed0e0a496b8a0770fa45e14c92e79b. 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/FR47Q0702560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a192207ac1c9d7ecbe3f443cd59b8ca12bb6257e6edeae72a259c39ab68135a. 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/FRZ139400097.
Partita III BWV 1006 In e Major - Prélude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1195d1a8a1d09c3f83e11ddd0b0655b36fb462cf6bc098fca03319293724a652. 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/FRZ139900187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f97a0a1c7976c65289123f2c33b8ce712096562ee66a16a86830f0ee90adbc7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DEE471900002.
El imposible mayor en amor le vence amor: Y, pues consentir no debo (Recitado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb88f74840663749171fb5c263c8e56dad57909dde26b01825ec01f1171a2fb. 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/DEE471900003.
El imposible mayor en amor le vence amor: Yo hermosísima Ninfa (Aria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d59e12299e908cd5bbda56007500078718b7bc9635b921a706b32b7bbed345. 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/DEE471900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89baf154a0e093e050f2598ce20c631901588f42e6aebd2f23242d9c8f6f17c. 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/DEE471900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096be388e711c6bf97ba1f1b8fc3620be618844f16307c7e01067bbd88eb683d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEE471900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479ab097f1c01b0fe31bab37652ec8e583ea16d3f5aa7aa329bedd1a32a6df3c. 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/DEE471900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cd966f309811f16efe9538984ec4d1d1cce0b9c9b10602ed1156ea26267fd5. 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/DEE471900012.
Vendado es amor, no es ciego: Tempestad grande, amigo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e306943cd3b698236093ab0b57fdc99a307f5611e8af9769116e98bffffc329. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEE471900013.
Amor aumenta el valor: Adiós, prenda de mi amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31947867386cff518ad351c53b149f67e0717def317b3c5fd806de773d3dacbc. 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/DEE471900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4381d1e1379430abd83cea84c001d7d93892556434710dc07e84ff5b14b8d1. 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/ES7891902001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92d3f569756566f9414e51b6f42e379959971d4eb4c5e8c63ba7bdf887e93d0. 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/ES7899800101.
Panorama de la guitare. A World of Classical Guitar Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c85bbe3100dccd67fdc3c9a0959803011bd29fc314571a886c9c7074912511f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720224404.
The Essentials: Classical Guitar, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28251be476c9893ad2846019fadf393a18f234e1ff5694d01ec878c72566ca97. 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/USB8U1601608.
Sonatina canonica, Op. 196: II. Tempo di Siciliane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476fe41ea85e258e70a7c3fcff3acf75753b584887a279bde44f649c5195053d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USB8U1601616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d192dba4ceacd323b8b8a07019164ec490546231424fb1a9c202eaa03f63e7. 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/USB8U1601645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48119b09e3b33d659ad9500ed8dcf5060697945b7ce87efaf206e8150a401218. 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/FRZ139504210.
Guerau: Poema Harmónico (Compuesto de Varias Cifras por el Temple de la Guitarra Española)
Il primo libro di canzone, sinfonie, fantasie: Passacalle a 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f5a245ead22433340c24faa121e230ce82d1f25d842f6e28fdff34b42213c3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ES7891501401.
Los Celos Hacen Estrellas: Trompicávalas Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72790aa25ba5f77c9bcf357048bb9fc8876bf7181d48ca4fd7370ef296edd97. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7891501404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6259f2144b66022cdd3ca80b413f47f569007dc339a0528e0e0f40e59d10101. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/ES7141500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7074b0034968f7e5e5b17efaafa9555644f8cdf682e8ceba409b354750456ff4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ES7141500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4e949245833e0c6685188e71ce173a5e3533a4e98c036ffd2e4e37d1bcd83d. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/ES7141500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52006b49938e61b2cf883a6405ecf24d90d75797531fe12572c7c74f8ed89360. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ES7141500020.
Passeos por el Cuarto Tono y una Giga por el Mismo Punto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5be7e98c25ca23e20c38a02b31939e0990f588cda6527f9a0765b1f4ff999d7. 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/ES7141500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323d7b9d7befc4f09066304991761d557ff4349a35483da8ee2fc825fd0a2e20. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ES7141500022.
Variations on a Theme of the Magic Flute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31be3706204b1c6049206cb9788e3cc29f6b63da3cddc950f05b20a761851ac. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7141500023.
Introduction et variations sur l'air Malbrough, Op. 28
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d8d84a05d0e2f47d98464594ca5aa4b9774545ea09c3b9bc2b224213a00d56. 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/ES7141500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc39ef0631b6cce5705ad598b79ba18def38f476946e89416aced313eade6e. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/ES7141500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2552cd1850f43651e1347f8451d52e2cf67181238ebff2ece177eceea016ff. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ES7141500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68a2b47c81b50aa1df6d03b245957c3b7b890f04d7f5c196457d76776bd4ee6. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7141500027.
Spanish Music of the Golden Age, 1600-1700
Rujero – Paradetas – Folias – Pabana – Vacas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329d4919a322efafbed0dd8667abf041dc230719c30526202c23482787fbdd12. 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/GBAJY8932701.
Guerau & Marín: Entre el cielo y el infierno
Music in the Time of Velázquez: Songs & Instrumental Pieces from 17th-Century Spain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12418fa7dd0cbbb7aba5e5f913451ed06dca171126a5248be8f4131170accd1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7899300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd01c2a8cf044b905f3336631ab5cf8b2f82259044c47682a6e6bf781852a2f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ES7899300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea46148929ad5460390a6659b61f97e45aa3e5b2523c9d42f6b35b2482b85d06. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7899300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070e908e4f9e57693ca9b0a2e87837ba064c81a31ee6ee82508f627b5e165d59. 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/ES7899300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b41316babec6f5725f09523e66efdaf4eab04544c15de3a98bb08f03986b3c1. 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/ES7899300109.
Durme, Durme ijiko de madre (Arr. for 2 Voices & Chamber Ensemble by Victoria Couper, Ignacio Lusardi Monteverde & Lux Musicae London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48e448c0cb86d8237af81f87f982d8df1f0e5f4b49d1c5836cdcee5537fdcf3. 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/GBSLT2415701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03de4e1cc166927053e32319fd806b1b1ce12885454273632363bd0af982a450. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBSLT2415702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdd8e8a4c5330770d456f72f62feddc9982f9ca9ec053d4a7e9ccbac1943ffb. 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/GBSLT2415703.
Tres morillas m'enamoran en Jaén (Arr. for 3 Voices & Chamber Ensemble by Victoria Couper, Konstantinos Glynos, Ignacio Lusardi Monteverde & Lux Musicae London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da9c21e80ecea6ac0a2b3e33354dc277d219568d24a35fd2d45c663372a280e. 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/GBSLT2415704.
A la una yo naci (Arr. for 2 Voices & Chamber Ensemble by Victoria Couper, Ignacio Lusardi Monteverde & Lux Musicae London)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7864c4c61f35e08d6d85dbd7f5d3bbffbff235360e6a7697ccd69f8ed07b18df. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBSLT2415705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2430072aad872a62271b9f3eebe8a3a682e2fc9bc1d3a62f79cdaa58ae562703. 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/ES29G1904201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb716eba65bc05d553009555b6bbef6a61716b540876148ffc03686d0824ee4db. 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/ES29G1904202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b51f03431700765cf45d9b8ad0547a02d9608b72490805093c8a6bcd51dfd5. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ES29G1904203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fb61ac4746d1f16956c0b60a31bb2790d88742124a6d41638303b300bf750d. 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/ES29G1904204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff72ae77c19d1cedbbf1e1c43d0106677c1d127488d35d4041959fdd2064067. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/ES29G1904205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc111cfba04b19644857a48574934ebc04d5785df1386ac602c13105bff8816dc. 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/ES29G1904206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30c65f6d26595299a80afb10f9515009f95ff24866cb00279082e49ad9c03b5. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ES29G1904207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda690e60d967be4474179d187018310c9b065c0f4b8da13c1c19e84d9a7ca389. 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/ES29G1904209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7e0d4c2fd948f1b7103d6216783d4b06060cab97e9a5d16fdc41af8b92b53a. 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/ES29G1904211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b80a3055e6ec332afe95ffaa2dabbd668b384cb3807e250e0b1845cbf6dbda0. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ES29G1904213.
Marionas : Guitar Music of Francisco Guerau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cb5c57da44f32dbf52f4a44376db6684ece96106496dac8bd546532543b3c6. 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/GBEBL0704602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f5a76bd359261aed797b159efa382d5243094b8ea24a4baa24022bd15d2c94. 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/GBEBL0704607.
The Essential Julian Bream [International Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ad661c1bea346662ad8e64740bb205b8dce1417e7949b226226568a36d09f4. 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/USBC17300371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ceec6a289fd7a64775d52d781e3ef10dba02e4adadba123f2a243c213d2b5d. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10500281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552d48751615d4fe6ca557c0d9637236a5938264331a50c31d8d554e448c683e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USBC17300496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c0d9668768be254c8befba37cb25453bdeb39072f675c3d9cfdc3bf9ba4c6a. 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/USBC10507614.
Noches de España - Romantic Guitar Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4446aec9ba3fece58fbd31e8356805c868db95c86c21a278456466c2c0c322e. 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/NLA509306801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c46e1faa9e746534d84243fd777998c9be6a3a2168462b4f443c78d5c6b5b5. 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/NLA509306802.
Fantasìa que contrahaze la harpa en la manera de Ludovico (Transcr. Romero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaff3c4767208f57c93f48753574feb4676d1cae055b0cd1f3b07cc0938c178c. 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/NLA509306805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe99aab348aff9a7aec2962c74e3874dfb3a0f9e63f5e49a075232e18ca7ea1b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509306807.
Sonata For Guitar Solo, Op. 61: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5430f69f04cc93fd07b4bbcc8c2dbd7b330e215e4847be41db8166d94f884d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509306809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c9a5b7745914099f6729db28b4a880351ed635629400a77e574a7e6379096d. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/NLA509306811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae7ec0750c4c15adf6e32abecc53b706a663aea365d7ee0541e0aa0a7e3ad7b. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/NLA509306813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73b40ffa8e60566006b3abfdab05405500c29fee39a2ebbd321a73ca9f103fd. 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/NLA509306818.
Bream Collection Vol. 9 - Baroque Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2b1a7c8f5d968b1cb33ecaa6f12322d4249e6ef0c643eac77ffbfda0f757ee. 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/USBC16500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765d488290d0ff9b916e79ec12b1a694472f9f6c9ff9112357d0e9278aa47f42. 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/USBC16500313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec76a93708b46a459283370844649d02d0f1f6fcf221ade739e27b0d9f38287. 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/USBC19606367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4044b06e88019fb79a24adc657d1a04f8dcd9cb86b7d374f21b2b0ddc545f11. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USBC16500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92e0529005be423ea514f1e6461d0808a0971ec71463aedaccf7a708d205eab. 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/USBC16500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccbce1770b51d5c4c608effc479578c9b84487d4db2f74341d792310c48bb02. 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/USBC16500316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088c044c6fbf3b0b4be4f15810158f3f83a56db420c6276672747534c1ad0bb3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USBC16500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f51987e88610bef5564f65c7f972bbdb891f0a36ec53f0dfb10759f1e11b0e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USBC16500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe819b46a057290f57803e5bf6d395b6d493223d98df5f422a5342a3ebae767e1. 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/USBC16500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdc91cd6f82f003c0539b48a32fdd2a513b667a2b71a090e4ec342c21a09e8a. 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/USBC16500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886604908bd8f59e626906387d8633b69fa37ff6fee4c8441a596815466a9eb0. 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/USBC16500322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424b9dfa08681f8036f772812172dc3b823b879084f6a3337ce83bb9a5bc0aac. 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/USBC16500323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e01b5c6b5de51fda17535a9ea0fef73ac1562add40a50bcbc7c0be4e72bc71e. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USBC16500324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82ecfdbbd4b6fc384979d3419498aa22964029492ebce0363cf81b420b27a63. 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/USBC16500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210b23380e8e2159c77409d3f240d821da2c6d3fd1b1e51d1c943ffd34ad7d74. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBBGL1801658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471d4b3de7f523362d6e687166086d341b1d430f7ab4a944b5fd37664ebf4e90. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10500276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10a18bb01cecbbcbe970e893c648a72faf3d40b0dcfb4a04a9324db39d7ebc7. 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/USBC10500277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1efea737deab8cfafae75a587aa954a166a9b5534b371aabdd98c8c0901242. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USBC10100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de34637645e256751493a3485bcf585b80ed7474b108019b7209a168a1240e2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USBC10500279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e94eba6a21b372d5e41c6b45d29df287ef2c391c40bb21af6e0a4d801e97827. 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/USBC18300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d1df9bb5bb8576bfcdeba031a92da13166036c28ecad6d5bc4a4ff26f46418. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/USBC18300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4292b102099be88545b9177e40e8f601f7d613736f8140bf1be488175881123. 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/USBC10500280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcad5b71ed8a897f6180471457abd39185ada34a0cbc4ee21c48b0dafb41eec. 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/USBC18300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613d07260572de2dd9ecf628c794b882b223e30d7de6afefe0cc03ae7b10c01a. 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/USBC10507862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ceec6a289fd7a64775d52d781e3ef10dba02e4adadba123f2a243c213d2b5d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10500281.
Villa-Lobos, Barroso & Others: Works for Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655ca5e3a18d449c78cf7b1e9dc375a4a86492256d9df1bd678d081cdbfba5fe. 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/ITX921003669.
12 Études, W235 (Excerpts): No. 11 in E Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3abc1ccbfd7cdf1aa301852aadf246e8ee644e2522c227b1c55215675ff205. 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/ITX921003673.
Suite española, Op. 47: Asturias (Leyenda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3faa8bf507d840edd54d875187e18795dd398a91ed26d90faf069ad44871d63d. 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/DEF057002550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454de35a6fddde3c99fd5a42690112429257fec5be2c431c9dcadf8cd91edcb6. 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/NLA508809603.
Chamber Music (17Th Century Spain) - Marin, J. / Ruiz De Ribayaz / Guerau, F. / Hidalgo, J. / Sanz, G.
No piense Menquilla ya (Do not think, Menguilla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e4d0c9051d42c1c529bb68489458d6ef717a37c6818570a321256a48a5f847. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf60cb8bd63fe0495c6392990836652c0c915ad37bf9b8b5555ed7b8076dd716. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DECP60402007.
Guitar Recital: Moreno, Jose Miguel - Narvaez, L. / Lopez / Milan, L. / Mudarra, A. / Murcia, S. / Guerau, F. / Sanz, G. / Sor, F.
Amoroso pensamiento: Spanish Music of the Golden Age (17th Century)
Guitar Fantasy in Spain and Italy Vol. 2
Gaspar Sanz: Tañidos. Música Española para Guitarra Barroca (Vol. 2)
Varios Compositores: "Tañidos" Música Barroca Española para Guitarra (Vol. 1)
La Chitarra alla Spagnola: 17th Century Music for Baroque Guitar
Rome - Paris - Madrid: European Baroque Guitar Music