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 0xfcd508e335985dd8db265b216a75766e11337fcaff09849cf53cc59060e29b6d. 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/a7049c95-85f1-475d-9ec9-fefbdcd42415.json and https://artists.proofprofile.net/proofs/artist/a7049c95-85f1-475d-9ec9-fefbdcd42415.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x1b04e0419910d66254626274858b5bc74807d0b1c0eac45bda79b555853d4528. 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/SEAEV1456010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc965e600629f6e41397310a05c4e53a9e66e07ddbde35c25d437e58c54b3ed0. 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/SEAEV1456020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632b3acc4e4e232023bf6054d7b5db57db388090bceb29dd70f3d3c7ced83d47. 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/USL4R2164661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217c67020b33d38755c6c90a9ee5c8f636aba9eed692a0e8889bd3c3ab02fb96. 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/HKI199635812.
La vida breve, G. 35, La vida breve, Act II: Danza
Orquesta Sinfónica del Principado de Asturias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c913a5b79fbfc9620262a88c64b1d684486fd50890914aca13c7b14505f707. 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/HKI190204122.
Fantasía para un gentilhombre: IV. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c4b7ffd11461cd5da9945fabf23e10bf17d019a4629dd1040b4809d75cdfb3. 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/HKI191827204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b70217b4081662577fffdc443dd5331154c520f3d4bb30b1148dc90a1334d7. 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/HKI191708402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2795f5997d9106654ac55ce815ae9c49757bee6e373dd7ae20dc479af71d1a73. 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/HKI199295714.
Valses poéticos: Melodico (Arr. J. McFadden)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c1f30634a9568d5d173adf50edbc6e69cf3d1e16a51fabb0c714c81ec4533a. 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/HKI199610902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0797a46ab3f7532c48923752bf76d31bbc850df4bec2fad02e252bb4250fc94. 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/HKI191408216.
Libro de Música de Vihuela de Mano "El Maestro": Pavana No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b8da837c1c4dfe15a63ac1648e22efbedfc4c328b7df84cd049a3c74adc208. 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/HKI191428923.
El amor brujo, Scene I (1915 Version): No. 4, Danza del fin del día
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d39c0ac25f3f84965a79a05c06f49bdfa1e9c61016e70c8fb92bac74924807. 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/HKI191829904.
Suite española No. 1, Op. 47 (Arr. N. Kraft for Guitar): V. Asturias "Leyenda"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b00a940c0a3cfc239f23bcb78be0a9808f3d649e0c2bf69fc3dd0a95368591. 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/HKI199648001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b286417a51f905b68b3e5e9db0a4ec4757d25268d6bba25a50be6f0399bc04. 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/HKI199201220.
Danzas fantasticas, Op. 22: Danzas fantasticas (Fantastic Dances), Op. 22: III. Orgia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eef7ecebf2f7be9895276df377fb71f2b3e562fe778f53020c0e3df4120f084. 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/HKI190143906.
Theodorakis: Rhapsody for Cello & Orchestra, Rhapsody for Guitar and Orchestra
Carulli, F.: Guitar and Piano Music, Vol. 2
3 Waltzes, Op. 32: Waltz No. 1 in G Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08df8f7efa67f99ca0418caf509e9d3c75894aa5f184a77aee10e824299dd818. 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/HKI190902508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13eb93d49af9a08ee39c3c7be0bf64dfa16ce01316da2cab9cca03758fba1267. 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/HKI190902516.
Carulli, F.: Guitar and Piano Music, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f550fb39043d51959942307f294e06fec2622ceb390e2c0840e84a09e0cfb52. 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/SEAEB2065060.
Introduction & Variations on "Malbroug", Op. 28
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a8a2d20f0559aaaa281e86647dab92e608c04b5a8dce9d7b40b0aea4d815a8. 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/SEAEB2065110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e0562adeff8ecf4ebcbe948fe67c005e6662a73e8d431e88dcf18d256c010e. 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/AUGBT2473780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a9925b5efd930a17faec63b10a54f988dd8ea8450d20ce88936d90e8c82df7. 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/SEAED2425010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85c0edfe9f69d050b18015ff22136f6cf28422466c582da493fc38bb60ca842. 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/SEAED2425020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d12d2f8833996f8fb0da37a77a19d41ddb2c805354069d92691834fdd4b093. 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/SEAED2425030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f170904e59213d32d3bbfabd89c63caca8226ed35b38816b7b478acfc69032. 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/SEAED2425040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee9786d064a1c584a6a8d0cdc1a46e6a24080d271a2df738e9b846709dc8f69. 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/SEAED2425050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10cfe02619ee125caa30da7e0b2bfc09a494c53a6a9b7e7116914e084158bcb. 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/SEAED2425070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe41bf6e10eac92f780635699215e07ca54f35a09aec3cf4d5058b1baacfea8d. 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/SEAED2425080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b855751a352f95361bdf691e2c4c050f12fd18550a237efac8c953f7f97835. 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/SEAED2425170.
Sonata No. 1 in G Minor, BWV 1001: II. Fugue. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2861ae0b036b31890c78221a7d83f098803afddb2f43b33f27e444721792df5e. 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/SEAED2305100.
Sonata No. 2 in A Minor, BWV 1003: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22184224a87b54bb61467c6bbc3bf9ee6e30cee9a0e8b666e352881f62e04de. 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/SEAED2305200.
Lute Suite in G Minor, BWV 995: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0c318b194444a3ecd69d6ae1c96db6f2782f3e8e231adb93755020cb01e913. 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/SEAEX1885010.
Lute Suite in G Minor, BWV 995: II. Allemande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556caf4a87b82f0e2253bc8e78901d12d0b1f2c764354628a679f7af4d0044c3. 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/SEAEX1885020.
Lute Suite in G Minor, BWV 995: III. Courante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005638420ffd214971a4fd99919f99318a87ca9d36bc3ab96e28441cd418cab9. 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/SEAEX1885030.
Lute Suite in G Minor, BWV 995: V. Gavotte I & II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c117dc0a71ef8eaa2dc91970a972499c5b734824bedebbd0e71250e9b584c. 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/SEAEX1885050.
Lute Suite in G Minor, BWV 995: VI. Gigue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46779eb755a5e9af1d173cb851c5cf19728fd4ad79bcd82cebb902af2eb39c31. 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/SEAEX1885060.
Lute Suite in C Minor, BWV 997 "Partita" (Arr. A. Krause): I. Prelude "Fantasia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba1d2cb98861e6769133fcc05c3bf25b485f4f4f95e22bb65055bc747f72207. 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/SEAEX1885070.
Lute Suite in C Minor, BWV 997 "Partita" (Arr. A. Krause): II. Fugue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574c9287ff98e2f3b5a0a06e44819852f135484e9fd87a06ce353b458778cd7f. 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/SEAEX1885080.
Violin Partita No. 3 in E Major, BWV 1006 (Arr. A. Krause for Guitar): I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96d284b410bb504d9a9563d34060721c4b8398e73e5ea6bec88d3a09774f1fb. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/SEAEX1885110.
Violin Partita No. 3 in E Major, BWV 1006 (Arr. A. Krause for Guitar): VII. Gigue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd83f50f691add9720ca0b9f5d6a5d42bcc4d29f785c82fb0395c9f2c69e3462. 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/SEAEX1885160.
Guitarra Mía: Tangos by Gardel & Piazzolla
La Muerte del Ángel (Arr. B. Benítez for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f43079f3b703d0037476c89b691c720efe2f8b97085fc0375b3cb6c9480d41. 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/SEAEW1665010.
Vuelvo al Sur (Arr. A. Miolin for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27ddfbcfccd7e6a48560b02b1fec5e3eff0768a56d41053f9a63a9889ba7509. 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/SEAEW1665040.
Por Una Cabeza (Arr. F. Halász for Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835ff95f5d2fb6d56f83853fbb1b747fb6412d0ccdab40d3184cdfdd96eb703a. 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/SEAEW1665110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bbd53b93a416122e9455af9a31f206e16db829f511a76581b96e582edc5603. 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/SEAEV1592010.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e7833d0a98c93622c346d081e34f7e3ad6fb0cc83582e898c613b7cf29c205. 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/SEAEV1592120.
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Sonatina No. 2 for Guitar & Piano: I. Allegro moderato
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Takemitsu: All in Twilight / Folios / in the Woods / 12 Songs
Subete wa usuakari no naka de (All in Twilight): I. --
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Shostakovich / Castelnuovo-Tedesco / Santorsola: Music for Guitar and Piano
Ginastera / Brouwer / Ponce: Piano and Guitar Music
Sonata for Guitar and Harpsichord: II. Andantino
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Gluck - Orfeo ed Euridice (guitar version)
Complete Part Songs for Male Voices, Vol. 5