thumb|Portrait of Felix Arndt from the Library of Congress thumb|200px|right|"Nola" sheet music cover Felix Arndt (May 20, 1889October 16, 1918) was an American pianist and composer of popular music.
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 0x56ebf7c66b6fbcfbbd5e8c862d95138d443f33ac1c63bd18856cc13fe68b8dc3. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08c61694-d26b-4b95-942e-c1b7d11f2413.json and https://artists.proofprofile.net/proofs/artist/08c61694-d26b-4b95-942e-c1b7d11f2413.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Paraphrase. Opera and Ballet Piano Transcriptions. Visions from the Golden Age
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 0x3da22e098740ff47035ebcc45842f5cc50043dd04f94916fe93975dce4f8e66e. 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/MX2831301570 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8527acbee7f69b287b5ed06bdf2b6580e991f0659b291724613a6e338f78fd. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2831301574 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917ebeda91d5ba823f195b08e98464259adefc5189c3544ce8095aa39c00b97a. 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/MX2831301577 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7173261f809606ed0e4e5a919e6307f070e961ea3297b91336d34b7d93c979. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2831301578 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05647334436b26df35ca14fa0ffe26e0078562bff681fb1d5f9545acc229c4be. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2831301579 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec52a4e931175968dd63fe5ce5d7dccc4c178bd354d53db3880c460efb0aec86. 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/GBAJY9806701 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dc324912484a2aa165fa899b0498126ff5f9ea7f435b65ddcce2b089114842. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9806702 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84eec38497e667069f3b025f441c2d7770811c184c9a2da6b3b27a2d8178626. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9806703 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfc33ebe11da723a9df2115039f5a11fa83ea5859ed45d8b92aff39fadf5743. 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/GBAJY9806704 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16171bf382223e9b7f5ab2cac7dafcf2dd6ff52798d1b6563813e017328696bb. 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/GBAJY9806705 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86855ceed75dfe8ab437396e69a021f5963c84833cd86b7533258638e9b05917. 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/GBAJY9806708 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a67fbe691658709f8db47174f5fe215dbe5a83d9fa4372357f9f73b65e8d31. 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/GBAJY9806710 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacebea9ea7b39d88daabd22a1194e3a46068b8ec5d844e87847c8342b3f1a556. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9806714 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a12aabaa4a35c2352c1da269253aebbe1c3840019d47077666cf7a0c4c1baa. 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/GBAJY9806716 — a six-check JSON result.
Symphony No. 5½ "A Symphony for Fun": I. Perpetual Emotion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee413b56a07135bf53936b6a49a49fb18aacde24a318e5d6525491dad379b421. 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/GBAJY9806718 — a six-check JSON result.
Symphony No. 5½ "A Symphony for Fun": II. Spiritual?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eff6204155a07d0fc82da117e4b2eedc9d9e82ebe572a72e5877a527628600. 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/GBAJY9806719 — a six-check JSON result.
Symphony No. 5½ "A Symphony for Fun": III. Scherzofrenia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf0a048d52d32864bd9ab807f28d01fb1dbba4d728e3251222380b2059a449f. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9806720 — a six-check JSON result.
Symphony No. 5½ "A Symphony for Fun": IV. Conclusion!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba8286466e075d2fbd8467013a8756e6e6fa9380bc66af0ad6e3044182cc5bb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9806721 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e785714cbd63b2510843b91dfd75bc12446e5fba7ce144cd8e298a9b6922df9. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/GBAJY9806722 — a six-check JSON result.
Classical Music to Lift Your Spirits Vol. 2
Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98e30df70ca78242a368c94b011cff2fdfcf0b9eab8d9c4baeeb4da4493fd21. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB01150627 — a six-check JSON result.
Love Me Sweet - Arr. for Oboe by Carl Vine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d80c8b03c50229bb2d899b7ecb0074a0abf19699797da530cd631f258668e0. 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/AUAB00350205 — a six-check JSON result.
Wedding Day at Troldhaugen, Op. 65 No. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b700f69d7d4228610b4607686c41c03984933ada26122e51f10b0a353263ab7. 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/AUAB01150640 — a six-check JSON result.
On the Beautiful Blue Danube – Waltz, Op. 314 - Excerpt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b99fb0b00d7d080d575cdf6bb572d49741d3a762e2c5a8485b05b3b5325e58a. 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/AUAB01750576 — a six-check JSON result.
Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d8ad55cadc7e0527f18363a612cf0417085078ceb568bbf42debb338c3229e. 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/AUAB01150661 — a six-check JSON result.
The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190f434d5330feca6d7cab6e8e7788c1270465d4cefdb4bd9ecfae6044f05f4e. 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/AUAB01050481 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f7fa4f48d3ef98e4385d26434770a580923af3e0bbedef890872a6442fcd0d. 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/AUAB00450632 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a04b3527bea67fcfaab6d803e7087b93ec4f93d13c0acca80f31bf682d6dd. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB02050501 — a six-check JSON result.
Trumpet Concerto in E-Flat Major, Hob. VIIe/1: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576bc095e9660280746f262f560ec89f960cf841a12bbfacc962d9683fdd114. 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/AUAB09650053 — a six-check JSON result.
Nola - Arr. for Guitar Quartet by Timothy Kain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5d4131fa56f2f967acc0b328121476fc35348001d9dd1458367bbc12e16312. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB01550732 — a six-check JSON result.
Julie-O - Arr. for Cello and Guitar by Slava Grigoryan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ea7f7c791ec8ffe6bb7431efb0c46016aba19c59bf2db66c5d43b88a677bc3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB01950348 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5d60062afe43a2258467c1d7de2640a3ed7347e55010fb958683c41981df6d. 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/AUAB00450799 — a six-check JSON result.
Spartacus Suite No. 2: Adagio of Spartacus and Phrygia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a01ee69f5df556b3d688c995faccf8d14d66bebc7c4c56e0076eddcde02f69. 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/AUAB01150438 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802200c30fe40fb70c476f159de8c53294762f38605ff0ca087abca955f46388. 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/AUAB02150010 — a six-check JSON result.
Zephrys. Piano Evocations from the Golden Age
Murmuring Zephyrs. (Murmelndes Luftchen) Op. 21, No .4 - Duca 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3061be644efb34f9bf9dee3ce9a043e7fabeee864d704dcfa16b74e856d50c. 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/DEPI82416656 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f390e05c45adc1a4876ca3fde1468246ef355e708c60ffbddb0c2829700bec. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82416647 — a six-check JSON result.
Le Vent Dans La Plaine. Debussy, Beethoven, Mozart and Legacy.
'The Golden Age of Light Music: British Cinema and Theatre Orchestras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2d52aad6f05922150523f86cad7ae458bb7bfb192a0b0cf3c1399c43492c02. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1462825 — a six-check JSON result.
If You Want My Love, You Gotta Do More Than That
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e28ce4a4b8c3e50c27602c1ddb6a053f2931f067d612ad93109b4667430ccbe. 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/QMFMF1462843 — a six-check JSON result.
Alouettes. Piano Revelations from the Golden Age
Lyrische Stucke, Op. 43: No. 4, Voeglein Birdling (Little Bird) - Welte-Mignon 1277
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b21ad19a0f9045300ceb071353c1f4d67e6a339e6b0e880f1fe0c09d0fb189. 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/DEPI82321819 — a six-check JSON result.
Humoresque, Op. 101, No. 7 - Duo-Art S-30086
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7180a7c01ede13f74bbf16f243f289167cce8ba81d43b6dee6f813a8a05f57da. 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/DEPI82321765 — a six-check JSON result.
Kleine Suite, Op. 18: No. 3, Scherzo Humoristique - Duo-Art 5788
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d67ca957077dbe6b90cec4947322f0e3415ad8b321ab39b18fae16b58ed3fe. 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/DEPI82321768 — a six-check JSON result.
Am Stillen Herd. Opera Transcriptions from the Golden Age
Etude, Op. 25, No.9 (Butterfly) G-Flat Major - Duo-Art 5649
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084d666d9b96cf5f0f821b883e75d43cc443a0f3a6bc0477c4eb650641b1f007. 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/DEPI82437911 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba98d75f39a3eaba8db01373ba341cdc297cfad878f30f36dd3016d0eefc8fcd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USRDG0226232 — a six-check JSON result.
Smile (From "Modern Times") / Ton sourire est dans mon cœur
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Canadian Sunset / Soir sur le Mont Blanc
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They Call the Wind Maria (From "Paint Your Wagon")
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Always Look On the Bright Side of Life (From "Life of Brian")
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DORSEY, Tommy: Music Maestro, Please (1935-1939)
Calliope Music and Arrangements - Wagner, J.F. / Sousa, J.P. / Abrahams, M. / Massey, G. / Arndt, F. / Bowman, E. (Circus Music for Calliope)
Dixie - Yankie Doodle - Oh! Susanna - Old South Cake Walk - Hot Time In the Old Town Tonight
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Die Loreley. Piano Music by Beethoven, Liszt and Scriabin
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Piano Pour Films Muets - Music For Silent Movies Vol.3
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I'll Dance Till De Sun Breaks Through: Ragtime, Cakewalks And Stomps