thumb|Image of Gustav Lange Gustav Lange (13 August 1830 – 20 July 1889) was a German composer known mainly for his melodious salon music for the piano. Life Lange was born in Schwerstedt, near Erfur
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 0xa0808fa6eda9d1a5a6a9cddcc341858f8c77ae54529d112c2a4095ed7a20a62d. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1795fb4e-4a3d-4039-85df-c620ff328eac.json and https://artists.proofprofile.net/proofs/artist/1795fb4e-4a3d-4039-85df-c620ff328eac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Maiden's Prayer - Leaves From Grandmother's Piano Album
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 0x39a13de7734eac9d1da761d807c0a09a19390494ac9d3b3d32faef3e67d5e834. 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/HKI199295203.
8 Humoresques, Op. 101: Humoresque In G Flat Major, Op. 101, No. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af42ecfdb0f7467416b674f7133964f5a465cc6a8f1de46423130e1462d3548. 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/HKI199294905.
6 Minuets, WoO 10: Minuet In G Major, WoO 10, No. 6
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Carnival Of The Animals: Carnival Of The Animals: XIII. Le Cygne (The Swan)
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String Quintet In E Major, Op. 11, No. 5, G. 275 (Arr. For Piano): Minuet From String Quintet In E Major, G. 275
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7421974febf8fd80bff6332003c5efb639dfd67313f054569ffdf1d34e1672f8. 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/HKI199295302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3d9ada10d34bef310dd92e81b9464860171f1c585b645f0b79e1e16996cbf7. 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/HKI199295407.
12 Morceaux, Op. 40: 12 Morceaux, Op. 40: No.2. Chanson Triste In G Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632398ff8011be6b68a7adfb0b568674bcd052feed56eb97c03d9cba8f69db87. 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/HKI199318113.
Humoresques De Concert, Op. 14: Minuet In G Major, Op. 14, No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6e82140a7b0a0940d14de6775141dbb171e38642bab78405ee21bdd10b9749. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199295111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a734cb92184c3913676826c132522d19e150b91972f1e5925e26fe7613fe634. 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/HKI199295202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9faf36193d7f1f7aaa6485d6fba510460038932b66c14e7ace7b29d9e4ff56. 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/HKI199295311.
The Maiden's Prayer: Leaves from Grandmother's Piano Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a13de7734eac9d1da761d807c0a09a19390494ac9d3b3d32faef3e67d5e834. 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/HKI199295203.
8 Humoresques, Op. 101, B. 187: No. 7, Poco Lento e grazioso
6 Romances, Op. 6, TH 93: No. 6, None but the Lonely Heart (Arr. for Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc67cccf3ee8572750bcf09a438b93fe0683de2c4a9dd98c6c6653045b6e4d9f. 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/HKI199295207.
String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto (Arr. for Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88279d0726314a08276e0c1892410cab21010a8e534ff5336516547d3a046644. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKI199295312.
3 Marches militaires, Op. 51, D. 733: Marche Militaire in D Major, D. 733, No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5db88bae4997b19f8d814d3619a133869fc227d2144e08217a51ea0267481a. 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/HKI199295303.
Bagatelle in A Minor, WoO 59, "Fur Elise"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a31251c8b69de62b8a645c9783f0db1a228146a3299551aa6d22afb517a921. 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/HKI199295304.
Die lustige Witwe (The Merry Widow): The Merry Widow: Vilja Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9faf36193d7f1f7aaa6485d6fba510460038932b66c14e7ace7b29d9e4ff56. 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/HKI199295311.
Die Parade der Zinnsoldaten, Op. 123: Parade of the Tin Soldiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673d7390cf307a32ac349d2085d89ef35af66850e0b337009e1929a51d4a7a53. 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/HKI199295315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdfd6d77c57ecc09e7234699d7ff9436611200d3c30e43bbcfa816fd3b764d1. 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/HKI199295317.
Famous Melodies for Violin and Piano, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bed83200979d5bea6beae031e5a020c6ffd99ecc0d099718edd9fe0d9b4c16. 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/USCGH1978098.
At Christmas - Silent Night Holy Night Fantasies about popular songs, Op.172 N. 5
6 Stucke, Op. 32: 6 Pieces, Op. 32: No. 3. Rustle of Spring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b29bf1e4fd93b189a267683f46da35c17894ef9c9110b64eed026bde5e27e75. 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/HKI199295201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a734cb92184c3913676826c132522d19e150b91972f1e5925e26fe7613fe634. 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/HKI199295202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a13de7734eac9d1da761d807c0a09a19390494ac9d3b3d32faef3e67d5e834. 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/HKI199295203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eddfb5caa17a98b3feebce909369bf779f6f1f6173ba0ee1f4ff1ce716ce4ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199295204.
Piano Sonata No. 12 in F Major, K. 332: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3e2eb0f3c32d99775c8322512d2867aa61b83554143dc819a012b0d059a29d. 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/HKI199295205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1412386fe8c5b664f5ac42e3d7675abc09498bb8d3fb75e0f1feaa8b9d1f2ce2. 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/HKI199295206.
6 Romances, Op. 6: No. 6. None But the Lonely Heart (arr. P. Nagy for piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc67cccf3ee8572750bcf09a438b93fe0683de2c4a9dd98c6c6653045b6e4d9f. 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/HKI199295207.
Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2df0cf14cb7d5881c3553cb0ba20831c1ec1f13d7b696849e720926c114877. 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/HKI199295209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c567a37eea233651ad445aeaad17f32ad4d8ca51f8f3ce4a8a921229fb1d041. 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/HKI199295210.
Miscellanea, Op. 16: No. 2. Melodie in G-Flat Major
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a35047078079bffe6c51b752892737091bb0153a34fb66352f42165b717c1a. 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/HKI199295212.
Mendelssohn - Auf Flugeln des Gesanges (On Wings of Song) (from Op. 34, No. 2), S547/R217, No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e28273b16c41026c2acbc8e6b584711bb0d1c7c8a08acf7773be1bd2a184b1. 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/HKI199295213.
Slavonic Dance No. 2 in E Minor, Op. 46, No. 2
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43f82268bc976a935724ea9b9baf163e9729559ea51f9dd62c36e79560d8ad2. 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/FR8E41200817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a70aab09eec4e46d1c9393f0806dfdbd10b429f2a3b0e95b0bf4cdcbd794ea. 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/FR8E41200818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8808ae5cb5887041ba8e1d9e7c51b6bdfa80b3923a8e379ba6239cbbe33a13bb. 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/FR8E41200823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddf64d9fac39b23fa286d011ed2e05598093943ac8a9a4be9628c03dd4cd113. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FR8E41200826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1ff240f851125e13edc49204191883035ea84349a99a18f933f25fb505545a. 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/FR8E41200831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6a9d11ec7a1b1622f968ba1731f89960aa302e6b341107e6bbb75802848f16. 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/FR8E41200832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e0664c1d8cdf688af9d1654824f77655e41644a8892470a3d7e63cb45c03be. 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/USL4Q1847455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda3da558cfd1cba1335f90f82b491afec9586b66b2ff776afd52439fc4b4dd5. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q1847464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3fdff76c0c803942e387cb52afea8053b50cd6b549b758bc550d9ee6671aa1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/SEAZC9101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b9661d63a814c1240c7473247cfa10893640eb10031731784fff86605c6609. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAZC9101020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ab2f66bc9b5845f5274fed187fa00ae0c2574e9ee99be5bcefd028abc10687. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAZC9101040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9e3a14b67e2221eee748444d33e366cdc6b67f9fcdf0c822824ea0ae7e8c8c. 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/SEAZC9101050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ba97673ccb2ac70e056d9c1e9ed39151637acaeca95d738d2c7a8ce762f7d5. 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/SEAZC9101130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3901655a7175a38426c4fd59e772a7fbb2899dd2c4f953d7c0b99e498156f013. 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/SEAZC9101180.
Bach : Lovers Concerto(Arr. for piano by C Project Classic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c0cc6ce4635e6fa07eb50ff4e0113c566a8cbd02b42daf9781b95400780406. 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/QZEKE1804478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7c05e53a8074c7b9b0795f72c8675f6b8df6a974e8cc2c1717a7424fa8a5f9. 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/KRZ291604201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc665d7ec6e1146a4aad71b5000a365afe4244ded30c83f9c08cf07a49b53819a. 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/KRZ291604225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea98133db3b117e739e664e50db2e43ffec05781720cf253754820baa4898d39. 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/KRZ291604205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adf8cbad5c735c0fa646b9d99b8877895dbe96ce922c03de80a5fd9a4bdfdf7. 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/KRZ291604211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafb9d738dc94f6102125196882c050ccca3aa449fdd09aa61d4ee6152932ef2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRZ291604213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee9e3b6e6cda3bdcdca0f8ae8d324b4a5bc7e1f6d1e367be8d83ce75260edac. 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/KRZ291604218.
角聖子のすっぴんライフ～ロマンティック・ピアノ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8289edf913af93bdfeb7919c3dd3602fd05b8462ccf8ee626037acd29c89b5. 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/JPKI00227076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e1d71dd19085d11cc2557abc475b7ff12960f4c89af7b9d2003231441dfa69. 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/CAENV2033526.
Calm Music To Help Your Baby Sleep Well 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c3314263906e13854412380b753f661941b8822941d886c7cdd0d7902e7498. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZEKE1927190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9137fbff2f31479289848b4867d26e6819aa9b4694b3efa389cde46ea949809c. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341757529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9059128d47c712dedbd3cead06147dc58bae7453660c07126ebd9d97ad48af3c. 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/KRA341757530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c701d2230c2dca551f1f2a09f890afa8112906f38cde5ca3127d2ab40521ea. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/KRA341757532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfed5004a7fec232597c14d7d85bd629cad570422cb761bd475368b9e1cc6d3. 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/KRA341757534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6254682ece9da05ca2e2cc39d60948230a7bab91a52e133530710fe11a46534. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341757535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf9dae95b7f9cad5c797ccdc6213ecd14f6053c936688500ad1c84d3728c624. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU2584045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f62ce972cf480a25e6d038b50723d1e464394593f01d1dfb2bc6f51ce1a192. 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/ATR981187174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e13bf8883869b8595a48caefce42e931b13842166fe021266ce9bd737e50c3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATR981187180.
Instrumental Collection Of Nice Classical Music As Soothing Babies’ Lullabies
Classical music for Relaxing Piano Music 14
Can't sleep the night of All you need classical music 11
Classical music for Listen to your Favorite music 15
The Classic Like a Gift That is Pleasing Mind 4
Classical music for Listen to your Favorite music 6
I'd like To Take The Next Day We Broke Up Classical Music 18