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 0x5f66967090f48a61a47c54dc2dc71e3b63f277dd2cccc3ac67f9eb6cf7c04347. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/094e21c4-0f19-461f-9918-c52cdf3759dd.json and https://artists.proofprofile.net/proofs/artist/094e21c4-0f19-461f-9918-c52cdf3759dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
String Trio in C Major, Op. 34 No. 5, G. 105: I. Largo
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 0xb6e3d15aa2452f9b7820fdb6d051e7329dbce549e0daa352f8a3e0a7c3bd02ca. 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/ES7891701401.
String Trio in C Major, Op. 34 No. 5, G. 105: II. Allegro vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1299706220cd3e5194caadae0fa0d141077e134108ed307ae916e887c44148d. 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/ES7891701402.
String Trio in C Major, Op. 34 No. 5, G. 105: III. Andante lento con variazioni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f1fe0d517f81f34fb946eefd6ea4e37a53b4937cd713a22f80eda486c4241d. 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/ES7891701403.
String Trio in G Major, Op. 34 No. 2, G. 102: I. Allegretto comodo assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161aa715f00a32e6a4e30e04f8052b6eb8ac58d4f7cc427baaca7eb2b367fef9. 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/ES7891701404.
String Trio in G Major, Op. 34 No. 2, G. 102: II. Minuetto - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b70da091a31f3d1942f79f3ba43c4a7481d28e738b66150aae1375fae85623a. 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/ES7891701405.
String Trio in G Major, Op. 34 No. 2, G. 102: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3481839f3d355871653be07729a94397e2f528b5846e650ba84df939bf4b5f87. 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/ES7891701406.
String Trio in G Major, Op. 34 No. 2, G. 102: IV. Rondeau. Allegro ma non presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7947d97aaadbe6984fc87ce5c360345026dd5726147b39bd7fa54c126113d7f2. 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/ES7891701407.
String Trio in D Major, Op. 34 No. 4, G. 104: I. Allegretto moderato assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b213799009c3b5c7ed7e2123907143b4b2e582e1fd0c229c8ea7082112d057. 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/ES7891701408.
String Trio in D Major, Op. 34 No. 4, G. 104: II. Grave - Allegro - Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784c8760f483c8d1afc63154b6dcac0bffe6280167234b48ca5969d23fe0f1c9. 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/ES7891701409.
String Trio in D Major, Op. 34 No. 4, G. 104: III. Tempo di minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb16c8ebdf34eb1d56fa3f2206c95309ab4043e54eb10bb16c3f33e7e8adbb1. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES7891701410.
String Trio in E-Flat Major, Op. 34 No. 3, G. 103: I. Allegro vivo ma non presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be6d5d2e8e8c1914b31bddf7573c61cb41ff2ef51b6c0ef27d5005c622bed7b. 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/ES7891701411.
String Trio in E-Flat Major, Op. 34 No. 3, G. 103: II. Largo non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0230c7f53e3cac4ffb6a96ed07708f7787c4077d784dce6882202856da2947. 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/ES7891701412.
String Trio in E-Flat Major, Op. 34 No. 3, G. 103: III. Minuetto - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156e1391be72c311a2ebdde786dc4688aed713459aeea6092aa09f24802cec79. 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/ES7891701413.
String Trio in E-Flat Major, Op. 34 No. 3, G. 103: IV. Rondeau. Allegretto comodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ae6c4a23fd331b48b18ac7db70c6f49178417daf8ced3022f873bfe33bf310. 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/ES7891701414.
Trio Sonata in F Major, Op. 34 No. 1, G. 101: I. Andante lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51782cf2ca491a8b04c43e668cb90d40863128d7621292572e4ba38fbd8755a5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES7891701415.
Trio Sonata in F Major, Op. 34 No. 1, G. 101: II. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3d46551d15b2f0f8c13c3ebc2d763b23285ff2e170ee564074f9d8880f058d. 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/ES7891701416.
Trio Sonata in F Major, Op. 34 No. 1, G. 101: III. Minuetto - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7f186eadbe5f51dca363c6bbc72d9c474f6802fdccb3745d3f6df2d051cdef. 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/ES7891701417.
String Trio in E Major, Op. 34 No. 6, G. 106: I. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fa88f16518b007e6f05bf66a926da37163b69faedf5faf3bf4e885aa884302. 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/ES7891701418.
String Trio in E Major, Op. 34 No. 6, G. 106: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0950703c56a3acae49b8dbab13c7c19737380edba87d27af8fa095fbb4aedced. 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/ES7891701419.
String Trio in E Major, Op. 34 No. 6, G. 106: IV. Rondeau. Andante un poco lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea852c2f8ee447353dae21e897fd82ec8ddffed301efe520bf236a351b9c54e. 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/ES7891701421.
Quella pace gradita: The Recorder & Violin Cantatas
De Arriaga: The Complete String Quartets on Period Instruments
String Quintet in B-Flat Major, Op. 39 No. 1, G. 337: I. Andante lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b85270709ffb0c03e023b6004e78c71fb15e6d579727070b987eb67bc43082. 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/ES7892400701.
String Quintet in B-Flat Major, Op. 39 No. 1, G. 337: II. Allegro vivo - Tempo di Minuetto - Grave - Allegro vivo da capo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab47ed63c9ea7afbe8bbf1059d0c4345b23c14f7e63590f8ae69f9606dc3f1fb. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ES7892400702.
String Quintet in B-Flat Major, Op. 39 No. 1, G. 337: III. Rondeau. Allegro non tanto - Minuetto - Rondeau da capo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8652eb294dfc710727c1cbe9b4c785d76dec8dc1661c86ed20ccfdf76f00149. 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/ES7892400703.
String Quintet in D Major, Op. 40 No. 2, G. 341: I. Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f9dc6a78dd3d02d7f538028b397f2179aedd0a050d5802a4dcc211dec8c128. 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/ES7892400704.
String Quintet in D Major, Op. 40 No. 2, G. 341: II. Tempo di Fandango
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd49f164aa8532a573880f023b0bab77fec5b438684a1198477a492ed08139. 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/ES7892400705.
String Quintet in D Major, Op. 40 No. 2, G. 341: III. Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1f5d49ccf72d66f98b3361afca819750840edac5d6657379535418ae82e594. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7892400706.
String Quintet in D Major, Op. 11 No. 6, G. 276 "L'uccelliera": I. Adagio assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa465dc2365aa2e318c5ca6be3493c7793d5d1e885cb708a65b9376af17891d08. 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/ES7892400707.
String Quintet in D Major, Op. 11 No. 6, G. 276 "L'uccelliera": II. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e90405e9593526995b30d461ec02487993610fb27df98f8fdfb12864b86e276. 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/ES7892400708.
String Quintet in D Major, Op. 11 No. 6, G. 276 "L'uccelliera": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976cf1b74eecf4d5c14a8843bc02cb64beb0628c0b6f8345eccc871b5f11c312. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ES7892400709.
String Quintet in D Major, Op. 11 No. 6, G. 276 "L'uccelliera": IV. Tempo di minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6d4da3cba28382959c07c812bd378a6eeeb72cd77075883663d6355af1d672. 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/ES7892400710.
String Quintet in D Major, Op. 11 No. 6, G. 276 "L'uccelliera": V. Tempo primo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47457b1223e31ae1eb87c1f51d5189e32edc42d77f9f1f2a5a91d2ebf148cc66. 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/ES7892400711.
String Quintet in C Major, Op. 30 No. 6, G. 324 "La musica notturna delle strade di Madrid": I. Ave Maria delle Parrochie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1491c45ff81accf647a180abcf4032ef71d38cc7395b60aa5a8bd25a37801c51. 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/ES7892400712.
String Quintet in C Major, Op. 30 No. 6, G. 324 "La musica notturna delle strade di Madrid": II. Menuetto dei ciechi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8067483052b37a82d7b5c26e8c64a23efa85a8c1dcd7f13e49c3d8d00c32863c. 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/ES7892400713.
String Quintet in C Major, Op. 30 No. 6, G. 324 "La musica notturna delle strade di Madrid": III. Largo assai Rosario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b843ba02b2d2d2e55fa3a5c782da9d955104217b4e163b9c2ff1c0e0555670. 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/ES7892400714.
String Quintet in C Major, Op. 30 No. 6, G. 324 "La musica notturna delle strade di Madrid": IV. Allegro vivo, "Los Manolos"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d950a9c53b53e331b3f37429730e77e71e385d42dee04a4643673b61ecdcd44. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/ES7892400715.
String Quintet in C Major, Op. 30 No. 6, G. 324 "La musica notturna delle strade di Madrid": V. Ritirata con variazioni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0966c6555e43098c0fd605ff63e0e61067bc77fb12271bba8aac7af7437ccc14. 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/ES7892400716.
Neapolitan Concertos for Various Instruments
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5c762eec9038c6cef0c676de79c5d6fcdbff1ed9c5ca31d7c78f3a6d9b778f. 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/ES7141500437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08617f9b6e5c3e29cccd4b3f2875bb42483a57c39c19aeb71f5e992e44b44b22. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ES7141500438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc6f325f55a6c1e28e5ee2828991c0a5c1a5af4c11056b4b1ba15de8dc6d2cc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7141500439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7ab031300e8802bce9ff96a714cf1503b6a76f3a8848d8fb6de0177725e6ee. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7141500440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b90007d9777e2470ce5da0a4e614d647ac10bfc5891a4ba1e19623c2ce6e547. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7141500441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4886cd4102f56ea0fb2a6ac957836ebfb829959f1f27ca81c026cec35d238da0. 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/ES7141500442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d4fe8bded5c263d4efa92d511b20e9cccfdf61847ba11c598d4d15ceb6aa71. 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/ES7141500443.
Sonata for Recorder and Continuo in C Major, TWV 41:C5: I. Adagio - Allegro - Adagio - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0aef097ceab1f99acee65e59669ab4baa5a6df6a96a9c972f86bc64e5accb00. 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/ES7141500444.
Sonata for Recorder and Continuo in C Major, TWV 41:C5: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f633500e25f5d239475a5ae258057c7b0667a1abcd7ef0bca3e78f2b7971fee. 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/ES7141500445.
Sonata for Recorder and Continuo in C Major, TWV 41:C5: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36aabbcdbbb35fa87ceaa9f9a6645cafa1042b17f08c2688845332281f83d06a. 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/ES7141500446.
Sonata for Violoncello and Continuo in A Minor, RV 43: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cfb1ac1b218c80f846256261a403d0751882a059a851e0665400dc6f53cfed. 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/ES7141500447.
Sonata for Violoncello and Continuo in A Minor, RV 43: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e40564203d0e33563bec0eaac16a9a4d482031156a0ce8eda95bd82506062f. 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/ES7141500448.
Sonata for Violoncello and Continuo in A Minor, RV 43: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632fb16911063f941d8a550cfb9bb59309c7cbd5b293d99587b92567157cf705. 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/ES7141500449.
Sonata for Violoncello and Continuo in A Minor, RV 43: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3034d270b8cc896ebb53a2e4a9b4c3f21b51c6e12842a4249d7254d55bc338ac. 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/ES7141500450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081a683e4eda2b72e7d625eda045af5ce87fe377b7b6c4be27760fb38ccf66ba. 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/ES7141500451.
Sonata for Recorder and Continuo in D Minor: I. Grave-Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8903c392de2934429da91a038b5764481b3854de4dbb0b78c84016002e14b2dc. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ES7141500452.
Sonata for Recorder and Continuo in D Minor: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf910411171c16116c46642f54f7088639628e5a6f3a84813ea05149bdfd82d2c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES7141500453.
Sonata for Recorder and Continuo in D Minor: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b61e0f0f70d8ab7836756f84abcdb8f136b6ea62a9e52955cba30744092f367. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/ES7141500454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb66a9a4e1a592756bc341fedc32154f3dfb9513fcf253b5cb9698f5af2b184. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ES7141500455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b5e0d0b511f53ecaefc32a2389840a2a67daf1913bc2c81f107379e3f55a28. 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/ES7141500456.
The Cello in Spain: Boccherini & Other 18th-Century Virtuosi
Il primo libro di canzone: La suave melodia y su corrente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d242c5dc141c69f51fb130b434d206d4da204f198f0206309f8d893c11b98d2. 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/ES7891301308.