1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1fc3116f0ef758388b495ecba2df1a547db914dd6fab749e8c607c38e9e0d9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23fe874f-7502-4eb3-94d3-dd64dc548da9.json and https://artists.proofprofile.net/proofs/artist/23fe874f-7502-4eb3-94d3-dd64dc548da9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9d821bf1aa0cf4bafb22d00b0f4dfdd3d3419573ece35f2c93ffe2462b46cf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPCO07819400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7d8ce06c46d4829505d88ac10c3852190203be11767798420dca720998876d. 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/JPCO06122300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea7fade5bde87a627126d20d95a8df3042222d28d0e95eece0a4af2f599bc9b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPCO07720200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1025bd80c4ee1a06bf155356ff22dd17e018b495e889c77301de446193754877. 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/JPCO09562890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d202d4c8f2f3538921f57d11e50cf8245986021231ac20ac88626b1eba2bd8. 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/JPCO08304640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c6753007f1012cc7a02d5ba2f6342a132ebb165f50742ee843a60b306f6bf9. 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/JPCO08424570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d62e9f78128044436955190c9e1f0460640fbe75c32787a669c6e28d0774e2c. 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/JPCO08119010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22558c859f3b50b89b147827ce1f923592c45f72e37f2d900f794e73647017b4. 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/JPCO08945622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82e6c64c0110a65911bcd05abdc013948bc01a0ce16059ce578a66181bf946c. 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/JPCO00208870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efc9f9d36703b8987f8ed7a5a987427c64f976f18091cc8660816c0ef912546. 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/JPCO09831800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27fcc8c93bb00f4919a002eda23d8bf330c7acf5fba6fcd7a1931f6ddf14337. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPCO06821870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a35780f9adec4358dce1178e5cdb2a46b36a846d66af30832b69e5747597f78. 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/JPCO06722320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494793e17bc7bbc6f57c42caa360a618f58677a0eccf8e9d92ba8b3d1d6bb4fb. 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/JPCO08312170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ac17d269f981a9eafb1cd2944e050061eb8adae623b3a08f56f3f54b3764c8. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO07794230.
交響曲第9番《新世界より》 第2楽章〜家路 (冒頭部分)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09e835067abd87098ce48568e1db4ea39e9386a41579bfddd093163014f0d59. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPCO08922640.
歓喜の歌〜交響曲第9番合唱《合唱》第4楽章 (部分)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5af30ac1598cc656f0459b1fc7c11724820cde5ba946b278c3e0549eed80e8. 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/JPCO08922650.
ゆとりのじかん 〜頬撫でるロマンチック・ギター〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6798517a68c58cdb0ba6da1e7d173c125b808d573246c45e0e54fe3b301600ed. 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/JPCO02220470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586fc5ab15b26837993ce597d1990b9ad22c8d1f6c7261268eb66bb8ce01cbf7. 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/JPCO01634190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5299194bb3ca5660a6b6e2799cc538b11e0537dcfc25c1b4afaf1fe05196f115. 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/JPCO02220500.
愛のロマンス（「禁じられた遊び」より）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c3ce60b7873a2dcb3162a1ea22984785cbf8b0bddfe13da535b0084bbb488c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPCO00031650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9a14a80ba1ae090cad6fbbef29790a764b78e1be7aff3ce8ef23748aa9c3a3. 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/JPCO02220530.
Prelude, Fugue and Allegro in E-Flat Major, BWV 998: II. Fuga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae71c002010cec7ad93862d76917488dd503b1b8344ff7ecf8b827c6fddf5baf. 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/JPCO02407520.
Prelude, Fugue and Allegro in E-Flat Major, BWV 998: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cfbb1f2e3d282c5a83509171a7f18c1a3d689e2fbdc8b7fe37da7df6aed720. 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/JPCO02407530.
Sonata for Solo Violin No. 3 in C Major, BWV 1005: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2eebace4bdb88235c7dc616fd04b0fab7a5a946fc40f24128622cdfa313c8f9. 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/JPCO02407540.
Sonata for Solo Violin No. 3 in C Major, BWV 1005: II. Fuga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec593196b5797ef52f0c713e5f9108cd0914b7b76e7483e460712cc1361a5cdf. 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/JPCO02407550.
Sonata for Solo Violin No. 3 in C Major, BWV 1005: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804214601f77d5ccab3484a64b8a968c17d858232cb7eafade8e953f70940af7. 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/JPCO02407560.
Sonata for Solo Violin No. 3 in C Major, BWV 1005: IV. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19168ba72314a7e6decc55a1f85c424bc9e42f694be3769089dcbd0813a3cca. 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/JPCO02407570.
Franz Schubert / Johann Kaspar Mertz : Lob der Tränen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d4ec9ab51393ab7972fef296411195668dcdc07c808ee94c7a8fe8e3863148. 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/KRMIM2334050.
Franz Schubert / Johann Kaspar Mertz : Ständchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad42f412808d3a2becedfbd7686b1b7344d495620ca43bed12788ec4402ec2a. 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/KRMIM2334051.
Anton Diabelli : Sonata in A Major Op.29, No.2 II. Andante sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8c719fe398c38fa735aad37e1a613623200bcbd513fbe08564580a28464773. 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/KRMIM2334053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323082fe361d66af42952ea9b84038761e69cbc2500a171ee34cce311f94656a. 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/KRMIM2334058.
Fernando Sor : Study in e minor, Op.6 No.11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59929afed3bd37f00a0c4bafaad6123ab0d4383df3378a0aa86c0b9312e589ae. 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/KRMIM2101232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46eea380bede72218ce170231e58b031f70e315d191a1c3ac9f4d4d79894f8d3. 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/KRMIM2101234.
Gustav Mahler : Adagietto from Symphony No.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08dfa13714417a194a3c45530568d684827b909b2042d531bf3077a2c02a3fd. 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/KRMIM2101238.
Keyboard Sonata in D Major, K.178/L.162/P.392 (arr. Kyuhee Park for guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e11169be7b6fcc57a913c933211ed46d759881890f6ac36b096a0876ef1758. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HKI191326901.
Keyboard Sonata in D Minor, K.32/L.423/P.14 (arr. Kyuhee Park for guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213c8439029797d20f67ddf4b58b1c97cd5e5db950e4116560ce22b077a8681c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326902.
Keyboard Sonata in G Major, K.14/L.387/P.70 (arr. Kyuhee Park for guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc4d0c940a7c7fd3492cbd4299a443704669c4fb17c959881489a4d9711e993. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326903.
Guitar Sonata in A Major, Op. 29, No. 2 (arr. J. Bream for guitar): I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3e672ec2620067c0f47ed39ab9e8efc477ff05e2bfb5d5cb35812fbd2b03c1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326904.
Guitar Sonata in A Major, Op. 29, No. 2 (arr. J. Bream for guitar): II. Andante sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84de4440867b451d5ad859bfb07849d96468426d5d0594b67f14e4a93e653cc4. 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/HKI191326905.
Guitar Sonata in A Major, Op. 29, No. 2 (arr. J. Bream for guitar): III. Minuetto: Quasi scherzo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a998f52c2426d0d8f8aec4f37017fa4c76162efb1c3aeb3a8bef6ed5b4e0ed4. 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/HKI191326906.
Guitar Sonata in A Major, Op. 29, No. 2 (arr. J. Bream for guitar): IV. Rondo: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98c8c60f143a1d4d68e40ed05efaf73397c833429a679933f3e41a2e3e03137. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326907.
Guitar Sonatina, Op. 52, No. 1: I. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8cc2fd8fdff1e6c637fe2a977b8b4ca9e3cf16466fc1ce53db777b53bce868. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKI191326908.
Guitar Sonatina, Op. 52, No. 1: II. Lento - Tempo rubato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2e2c9dc41259ab06303558a2362d11146c15a0b7cfc0bc2c79d70289ed2fcd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326909.
Guitar Sonatina, Op. 52, No. 1: III. Rondo: Allegro non troppo - Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc7cba3a2313cddfe0553b41febe9a537182a62a57272e7e303fef840542cca. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326910.
Serenata espanola (arr. F. Tarrega for guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef3ccaea69a30267f70311175152131749b4155923a06c312f79dc0e65ff201. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326911.
Un sueño en la floresta: Un Sueno en la Floresta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5f52ba9dd2bec161c7e52d172aa7b20d0661257233d4f4b5121c97dda7f424. 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/HKI191326912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fd6522db4be90b71763cc8b47a4afbb3058e05860a98f0acd535b49a738bd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191326913.
M. リョベート：ソル主題による変奏曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939b9d969b4b218fdc09a36dd78f3de09e0a0d93ed20a6b1886b3d2d7ba2345f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPH291254501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd57b28957ee1f2b4e8db4a56313c1f703fac3172727219d0286cfd7c7329d7. 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/JPH291254503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae33146db6b02a8fd71af8b88bcf353fced36f3f46e4e56a4ab53289bffc3a0. 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/JPH291254505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85957ad79e33e88a6249ca5324f6315c57458471defd16a3f1c94894add4a48e. 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/JPH291254511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3ef44e1b1111eb611a428aaa696a258764c69b0aab526e0d6fbb9fd30340b6. 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/KRA0R2300806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cb4a0045cdeff5f6033d0fdf63a1ed1b5c4b396be2355f30015392effe476e. 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/KRMIM2217440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca6d95813ad3570b4a0d773ce29a1ab04e3fd2e140b0c66f4803aa0ce908cdc. 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/JPCO01517620.