Juan Crisóstomo Jacobo Antonio de Arriaga y Balzola (27 January 1806 – 17 January 1826) was a Spanish Basque composer. He was nicknamed "the Spanish Mozart" after he died, because, like Wolfgang Amade
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 0xbc46ae592dc114be0389a14bc9382d97006f9569fece5e005b6f0bc76189f10c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d875aac-3e1d-413e-b6d6-7b7fb9a11a68.json and https://artists.proofprofile.net/proofs/artist/7d875aac-3e1d-413e-b6d6-7b7fb9a11a68.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x356ec8e1739488afdd07689383616608b8b95bb8c644d107c653a1dbce34c210. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER180652206 — a six-check JSON result.
The Oxford Book of Easy Flexible Anthems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1624c3533fb8ec19914b53f5cc1e423f266267f5d6f07479c94429e59d18aa8d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBN3Q1601088 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b45d8b377623eb9aa771b98e6440250d292e036cafb439650d14700148241f8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBN3Q1601093 — a six-check JSON result.
Spirit of God, unseen as the wind - Upper Voices
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4f6c542aa03fffa0b64d460cf67488c2f06a7d061a7b9cae06a8a03ace3c9d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBN3Q1601094 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd603e5355a624d58f4ddd107cc4d5f9a542cefe5e2d48a36669d5d8869a298bb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBN3Q1601097 — a six-check JSON result.
Come, Holy Spirit, Creator blest - SA, Men
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fabcbde6d5de4abe0580c31e4d5c5694f7aeeadd6611883eb1ff7c3634b700. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBN3Q1601103 — a six-check JSON result.
Take up your cross, the Saviour said - SATB
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4477f58143389b9682e96a052f4c800c2859395a3dcef6c8761c5e8b50338cdd. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBN3Q1601108 — a six-check JSON result.
Cherubini: Médée, Act II: "Ah ! Nos peines seront communes" (Néris)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7b3028a2681a7250084a5039567bd381b5f9ea2581f30494c2662ecb0d8847. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0900563 — a six-check JSON result.
String Quartet No. 1 in D Minor: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393dcb71a8a904ea9fa59d7350eb6ba76fb0ac6bb9b47f9879f95ef9d40ed6b1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338010 — a six-check JSON result.
String Quartet No. 1 in D Minor: II. Adagio con espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f282c04d66f6b05dd5bbb2cae820962745809baa65ace039796e8152120540. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338020 — a six-check JSON result.
String Quartet No. 1 in D Minor: III. Menuetto - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83132dcec68f1a9263f6ada9510d837c644fd82a31c168a919eeba19c03bbd8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338030 — a six-check JSON result.
String Quartet No. 1 in D Minor: IV. Adagio - Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9a55d826dd119f8a0bbb8f4fd2975bd49eea9edd7fd18966895b3f33600bcf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338040 — a six-check JSON result.
String Quartet No. 2 in A Major: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdceceda2c88cdf94c59efbd53a8becf5f173e7525b919ec604ad5968fcdc9c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338050 — a six-check JSON result.
String Quartet No. 2 in A Major: II. Andante con variazioni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5553a7aaf235c72bc50ad5d59cbbbddbd3a2e74d37d779c2e92ee1cc98a64807. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338060 — a six-check JSON result.
String Quartet No. 2 in A Major: III. Menuetto: Scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2532d8d6d6d0b42cea64471f2e01a356a3f3c0475ce804e07ddefb32fd310e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338070 — a six-check JSON result.
String Quartet No. 2 in A Major: IV. Andante ma non troppo - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9339a88d27b2d485dbe40feed08e24394204572497fd7a794a7a5d7c9014685. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338080 — a six-check JSON result.
String Quartet No. 3 in E-Flat Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf00eab0565850bd54e392aa2b90dcaf6b54c600a8fd4617fa5c60a79fd9b04. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338090 — a six-check JSON result.
String Quartet No. 3 in E-Flat Major: II. Andantino - Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3a04db3a62b78656ff979eb051bc49db1535ec7e0f1ef14d4ff69c35f1edce. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338100 — a six-check JSON result.
String Quartet No. 3 in E-Flat Major: III. Menuetto - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc025e87596146ebcd179b3ea3d3e5bf44acb577576d4f70cd44bd45aeb45b424. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338110 — a six-check JSON result.
String Quartet No. 3 in E-Flat Major: IV. Presto agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2a266bd85ebf9700cceb8e3da8041953189cfc5b69af141605ac990ce5f9fd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5190338120 — a six-check JSON result.
Arriaga: Tema variado en cuarteto - String Quartet No. 1
De Arriaga: The Complete String Quartets on Period Instruments
Arriaga: Obertura de los Esclavos Felices & Sinfonía en D Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e55fd0429c7a4f668e86fdad291e79b8faf7247271c4b2f3514babd9c899930. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71A0910222 — a six-check JSON result.
Sinfonía in D Minor: I. Adagio - Allegro Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c631bf02ba83150c1b5d2127eb70d1ae75034d7a504000f9bf6077fc08b6b7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71A0910223 — a six-check JSON result.
Symphonie À Grand Orchestre En Ré: I. Adagio - Allegro Vivace - Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cc0801e6c2551e2d6551deeaed6907504d0dd840f2b9d9af8c9722f0604bf3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4210801805 — a six-check JSON result.
Symphonie À Grand Orchestre En Ré: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e35312d2cf127c0cbe2b61369c01f1e0ba16a4e65a0c8e28d4a73f6f4adb22. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4210801806 — a six-check JSON result.
Symphonie À Grand Orchestre En Ré: III. Minuetto - Allegro - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ef3dd8351d9056d5bbda082a2469294fa5db142bd130a75da1eff8bf4a3984. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4210801807 — a six-check JSON result.
Symphonie À Grand Orchestre En Ré: IV. Allegro Con Moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d1abcf1436a77d866d7a1c9e3a7080b7fc83a08b3f56fdcc8e83fdbe62a631. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4210801808 — a six-check JSON result.
Losesclavos Felices (Ouverture Pastorale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe5a6c4c827e168b4bc0d500e277d5d275242dc2e1ed9546a016842d07aa0f4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4210801809 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5616a181c4248629092d0e28847df16c3cd09eb00a33c12bbbae80df30306d1e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH4210801810 — a six-check JSON result.
Sinfonía in D Minor: III. Minuetto (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a376ff215c0275373e4dd115242eb5a7585b17d7aaa5c090aef8ea6d2ace12a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71A0910011 — a six-check JSON result.
Pennies from Heaven (Arr. For String Quartet by Bill Thorp)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aff8a43490057e8cbc0e6f8f3805a2788cf440f6f3f3d88a90d086cafd4f4d6. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE219778603 — a six-check JSON result.
String Quartet in A Major: Scherzo. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae0948b6bc068fed3e023aefa0860254c14cd094ba93665dcfbae3f0110837c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE219778606 — a six-check JSON result.
String Quartet in F Major, Op. 96 'American': II. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb038072d43db5fcf1fe4075a4144d30f2a202248e578f30689fd5875a8523005. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE219778613 — a six-check JSON result.
Sir Duke (Arr. For String Quartet by Jörg Widmoser)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cddc2189f34e7f7401eed00286ddeedd165a3d0a9c12b46f8a6f7cd728b5bb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE219778614 — a six-check JSON result.
Train Traveller: Madrid-Valencia, Valencia-Madrid (1 Hour and 35 Minutes of Musical Pleasure)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90833df28bbc70ecb860d8ef647579cab6e1d980a5cac463537439bfb7af0b66. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6630274301 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9120aac0430044261f14454c4b7241096818eb02c4d6c1c5e3f5ca44cafadc2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6630274304 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ba2c08fe80e8a2b3e12daee27320f0d887456e50a800854ccc2c249ea2c340. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6630274306 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659ae0a9a089ac0c7c00559ef7aaa4b977deb0789380af50d376fa03e16350fd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6630274309 — a six-check JSON result.
Piano Inédito Español Del Siglo XIX, Vol. IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358868169fa089e877c31ddf37aafa261e11faa355c68045cbc7240439aea63c. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES24G1200166 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17405769ba3248692096a349ff1f55360d92f10bd3f5dd2ed54b90e8a15a9da9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES24G1200200 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadfdbfaf9233f0fb56fec40c2f937d33d6aff3065302192b325056693b1aeec. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES24G1200201 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d12600bd693916b963f9d4f1bb4a1afe89bba48537afeb526cdaa20188cf7f8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES24G1200206 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5903727a6f3b8c5883448befb19a95a347d6916d208af8770ebb5514cea98aaa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES24G1200191 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53369884ca7f5e32f827acd690253955cb7d32379950f78227b632f1f9df7cfa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1900601 — a six-check JSON result.
Symphony in D Major: I. Adagio - Allegro vivace - Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3a93a4c2c44855b0018070705f3a02dc7342e5b716948a31aca50a6ec2ee0f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1900610 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae6a0059691a9062b37f2d65e2637f1256e92b07e755f30881bfb159393a239. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1900611 — a six-check JSON result.
Symphony in D Major: IV. Allegro con moto - Majeur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aebba9905a128eb3dc0ba1aee30db179ddab6375651e5894e2c381b0c39eec1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1900613 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe816f3393c86e58a85ee3cb5b4c38d27b893dd8257bbc34cdebb98a8ee762990. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e50dba5da92bea1cf463155c3375af2519b2a4f28c8fc129fb0055249a75a2e. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb3d3a527c7e4a26e96f47037b88742c614b002d3c2d0624ff8e57276d01004. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd58a85e93e44fb3d38e7f35eb8bf1562f2af71b48770f5ff0aa07a27e6e7eb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c90c3ff6b658219d7f7213dce64eabe75c6d3fc4f5a64360c107aeb0b213ef. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9bf71cf25a772089badc39c64b9f073336d8a10600f00c1099800f1ef9d5b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9453ba266d69c2655eadd83dde1ea4c2464b810deb2012f7d7e0833d0e3c2e66. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b1a642d32e92d47bb3c2fbb152298c60292e79866bef7e9fb797c28b2a9fa5. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9e392fa15807eae7d54227b55d345b26562c46e3b02f838d9437412c0c5901. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ed184ce6f93b4ef61d7b9830314d4c24d776472163dc6b051aa39e72efc87e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f1a5b28473416c911f8ad22cdf04ffe5ec03e0bd37cc90cf3e44797baa40bf. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54718a29580edb98d7acaa155b0fa35b9d04c4241e5265c0d6cb28f89f3bb17e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a754911337c6678bbd3298663e42e4a2ac74a375dc6f8dd4a15be9bf4ab911. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES8740763013 — a six-check JSON result.
Arriaga, J.C.: Symphony in D Major / Pons, J.: Symphony in G Major / Moreno, F.J.: La Scala Di Scerma / Nono, J.: Symphony in F Major
J.C. Arriaga/ J. Wikmanson String Quartets
Spain Through Strings [Arriaga, Turina, Toldrá, Castelnuovo-Tedesco]
Train Traveller: Tokyo-Kyoto, Kyoto-Tokyo (2 Hours and 22 Minutes of Musical Pleasure)
Concerto Koln (20 Years) - Portrait of an Orchestra
Sarrier - Arriaga - Vořišek: 3 Rare Symphonies in D
Hida-Takayama Virtuoso Orchestra Concert 2017
Paganini & Arriaga: Quatuors à cordes (Mono Version)