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 0xa00c9b67bde68fae8990130a6020ab393cb53be50ff61c2e7e69c09c27d72b8f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d17c653a-a1ec-4afb-ade5-cf13a32c0ed3.json and https://artists.proofprofile.net/proofs/artist/d17c653a-a1ec-4afb-ade5-cf13a32c0ed3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mayseder, Praeger & Others: Violin & Guitar Virtuoso Pieces (Remastered 2024)
Call: Complete Guitar Quartets (Remastered 2024)
LUYS DE NARVÁEZ, Los seys libros del delphín de música de cifra para tañer vihuela (Valladolid, 1538)
Carcassi: Complete Solo Guitar Works, Vol. 1
Federico Moreno Torroba: Madrileñas, Agustin Maruri
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 0xa0ca8b96da0bb8ebd092001ee6dedd2b1743e3c44e3d6fc0654da6df1805f44f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:19:49Z), 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/ES17B2400994.
Moreno Torroba: Interludios (Remastered 2023)
Carcassi: Complete Solo Guitar Works, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9e726a54c69f83ecca706ff1e031fdac3568c8cb8608c3775885d33a59fc5f. 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/ES17B2400691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e19562357b52ca219b4962fdb1a347d23d429c40f06847717df67f2307701f8. 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/ES17B2400692.
3 Rondos, Op. 2: No. 3, Allegretto non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc76cd5b59f45a76425e98508b674a9d8a1ac034b4888eaa5b63a620abfd80a6. 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/ES17B2400693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea8023ae2f13fbea322d15c4bf6dfd6581861763e719774428da8a3074817f3. 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/ES17B2400698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d72956f19f7ffbb28b784980f6ac288b37f28db5ea46d892331954e6460f3b6. 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/ES17B2400700.
12 Small Pieces, Op. 3: No. 8, Andantino grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b7df79ba14a10191989b0c017a2805afeccbb937d3551723381a39db6d2ea7. 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/ES17B2400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e223ad365f63178f94bd796e2e0dc48055b6e0d788013c7a13aaada2322b84d. 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/ES17B2400706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f4c6f5c779e78e4d4e5f6e2e49de35eec248b8d402c2eea56c21f4a4adc364. 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/ES17B2400710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0c03f0b8c4adfb5b769c47c3276b42e66eab295ea69058d008499a1652b5fd. 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/ES17B2400711.
Le nouveau papillon, Op. 5: No. 3, Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393cca1cf90f3ef4c085c60ef231fe35cb31010eb3c9fcea98f5fc5d6dd9b47a. 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/ES17B2400714.
Le nouveau papillon, Op. 5: No. 4, Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498c4d06169031ae755d1df842b95dc47338bd9047c58bbdd16f0016234c1bd2. 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/ES17B2400715.
Le nouveau papillon, Op. 5: No. 9, Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73875381c328d78222f8babffc6352d374ec9a53d6e4cb2b326fb86e6c7d2905. 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/ES17B2400720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd743656164192ec11a670739801e7f44fae1854cc4fff299e73790577ab8bb2f. 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/ES17B2400694.
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 0x7292540ae8c6ab9c4fec53d915aee587def12ddffc50af27191dc53c7714aa05. 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/ES17B2400695.
12 Small Pieces, Op. 3: No. 3, Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb797c8a0c36cf8827f109a3bddfc964f8f12b3d57e4a82a7ae19d1781eb5b896. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/ES17B2400696.
12 Small Pieces, Op. 3: No. 4, Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db29b4c4b5673326ff21aa6a3f2483b36dfb4bce32d752f8b14dccdbf5b8ec6. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/ES17B2400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc044ffb778dfcf8877736de9d3a2029148be94115eb848b88fcd2b191b9e3acc. 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/ES17B2400699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9af54230df2eeb89a8f711be4cb25f8b512b616c4847e3eb883df41e4d4725. 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/ES17B2400702.
12 Small Pieces, Op. 3: No. 10, Rondoncino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffd898821b8bfce3c9a35c100916791ca7826559f589c037a8ac4e10b54cd89. 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/ES17B2400703.
12 Small Pieces, Op. 3: No. 11, Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1509f681e638547263ffa3ed806587abc8db6548fe10cc63465ffc4021a749fc. 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/ES17B2400704.
12 Small Pieces, Op. 3: No. 12, Rondo Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2f3587639284fffb1243eb7ff4ef4f789cb82cc3c81d9b8dc050ecf8dbe032. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES17B2400705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4894f3c1528af84b2342b16c0562a7922e0d24a87de869dfc1699d93355215c6. 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/ES17B2400707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc9067e0f751a6c74d922e339ce57d55b2c48621fe3d214efae3beea83a189d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES17B2400708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3623f779bf4990fd94c459af4f4e0cefde76e7256791223103c7fffb23034e. 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/ES17B2400709.
Le nouveau papillon, Op. 5: No. 1, Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c72af1b7544d6c113a9b4b0310d6b5658dda6b18a45834713bdb3eb7cef379a. 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/ES17B2400712.
Le nouveau papillon, Op. 5: No. 2, Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3530c7ff384e015ff901b679256a929a932b3f86435ce1c3d2be7c1e024df3b. 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/ES17B2400713.
Le nouveau papillon, Op. 5: No. 5, Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22c49f18e28bf86257111234ca99d202dd6c56c2473015af189d91e03d06cf8. 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/ES17B2400716.
Le nouveau papillon, Op. 5: No. 7, Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2254214605145be877e7f0a10093cedd385cea5a3e6d5b4685fc4edfd29083cf. 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/ES17B2400718.
Le nouveau papillon, Op. 5: No. 8, Andantino grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbc2917360e09c80bbb8f42610a1589075e20c02d93b46af1388850aa9f1cba. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ES17B2400719.
Le nouveau papillon, Op. 5: No. 10, Senza titolo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94551130d4ee7845d0b54cab8f279fa8ee1c2e07a4b5b46b3a3277e0e82e1b6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES17B2400721.
Le nouveau papillon, Op. 5: No. 12, Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4159cb7a8160def48ec15de8bd390414c90045b4b3f7c391c3a72f73be0b550e. 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/ES17B2400723.
Le nouveau papillon, Op. 5: No. 13, Mouvement de valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d229f8dfa237ef4266f1de46b8791a56e44405e14f258499191e94c335e6f3. 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/ES17B2400724.
XIXc. Spanish Romantic Guitar: Agustín Maruri (Remastered 2024)
Manjón: Works for Guitar (Remastered 2024)
20th Century Spanish Guitar Music (Remastered 2024)
Guitar Recital:Agustin Maruri (Remastered 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde25825bd2c7a66a32d6338382966e4737edbf266fe989ce2eed9c1ecbce25d. 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/ES17B2400593.
Falckenhagen: Flute Concertos, Op. 4 Nos. 1-6 (Remastered 2024)
Matiegka & Call: Violin & Guitar Duos (Remastered 2024)
Matiegka: Complete Flute & Violin Trios (Remastered 2024)
Call: Flute & Guitar Works (Remastered 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4809c376c372de4cec813b23ec9d98106acc0cf43823ed9cbbeaa045528d9da6. 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/ES17B2300737.
Vivaldi, Burgmüller & Others: Works for Cello & Guitar (Remastered 2023) [Live]
Falla, Moreno Torroba & Others: Works for Cello & Guitar (Remastered 2023) [Live]
Berteau & Vivaldi: Cello Sonatas (Remastered 2023) [Live]
Henkel: Complete Works for Flute & Guitar
SOR,TORROBA,PONCE,TEDESCO,MARSHALL,Agustín Maruri
MILAN,NARVAEZ,MUDARRA,SANZ,CHILESOTTI, AGUSTÍN MARURI
SÓFFREN DEGEN, Music for violoncello & Guitar
Falckenhagen: Concertos & Sonatas (Remastered 2023)
JUAN COSSÍO plays GASPARD KUMMER, Complete works for flute and guitar. (First World Recording)
Amusemens op.56: II. Adagio - First World Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ffd3949bb429a609acccc7b11d673b79fbcb5c32a71a2860a71eaaddf32f31. 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/ES17B2300050.
Eleni-Lydia Stamellou sings Mauro Giuliani
6 Petites pieces très faciles for Guitar, Op. 5: No. 5, Andante largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a621e5df8fb5ac75d703064b0dc4346071de6eb4ade6c4272e318984a6eb98. 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/ES17B2100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d4fe129c13ac06af8a18b6aecd80fcdd1e3ae242892400483549c11740d972. 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/ES17B2100074.
Antología de la guitarra clásica, Vol. 1: Renacimiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4212bfc1eccc9c933387c25893bc029a29664e181e3073ed2ed76fd46fb7b30. 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/USB8U1701208.
Haydn, Rode, Giuliani & Carulli: Chamber Works Featuring Guitar
Original Romantic Music for Violin and Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b8d0d137bdbbfda65478d2918b3701b4514761d417602e3bec639c4fda9cc3. 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/ES17B1200711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32eb291086c05a1f3c6118739883d1f3ed7cc45de3b2449ffdcf17a798c40a1d. 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/ES17B1200710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb87a10b4a190aa0116e8168e7d17824693a42c7750d6278391537ecab43b5b7. 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/ES17B1200712.
Poetas españoles, Vol. 2 - Rafael de León