1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb2639b78513279d6e7a2a7a333e7c6124e8f74e4af00ae1e51deda638eb48dfc. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f4e8889-8b57-480d-8011-abe3b30e3f7f.json and https://artists.proofprofile.net/proofs/artist/1f4e8889-8b57-480d-8011-abe3b30e3f7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9a6f10581522e50bce2c3613e743524aa84582a4a5fc5572aed21989c0673a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5DPDGhW0Tkp0X0hdeAGkDG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5DPDGhW0Tkp0X0hdeAGkDG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf609345d356e12ffc567e7cc48f8474711082948651fb4df9ef978435ff725a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/25CMpU3z0AjcbeKpf1Rkbz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/25CMpU3z0AjcbeKpf1Rkbz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c721cb9eb68e5d7970df2488d2257a4160a9f116972045ed35fb018b350ad03. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/059jLJwzwUHfNSLj2LWlbi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/059jLJwzwUHfNSLj2LWlbi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea466175a1961ee1a54a9fc52c5971a25993e10cd216038d1a147d4e117966a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/73ScE5XCSuTi64AGuCHY5y.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/73ScE5XCSuTi64AGuCHY5y.
{"copyright_id":"0x16ec53bf6939b7e0b233f6d1ca9475dabf9f1ee4dac33aebf7a4daf84385f558","isrc":"FRZ052100165","name":"L'univers est une aventure","registered_at":"2026-06-23T07:47:57Z","spotify_id":"4UkLYx94BJRzEBK4DrVPt7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ec53bf6939b7e0b233f6d1ca9475dabf9f1ee4dac33aebf7a4daf84385f558. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4UkLYx94BJRzEBK4DrVPt7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4UkLYx94BJRzEBK4DrVPt7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecb57870918b9fb23b185091922e49f3c1c1a6cd99fbe4e41d1f88ef9322d82. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0HJRMx25iQd4PJzxraBp8C.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0HJRMx25iQd4PJzxraBp8C.
{"copyright_id":"0x7cdfb1fd1e7b0b9db15de10ea24564057d8b76f6fb351e8b92d1f5c82051dec5","isrc":"FRZ052100149","name":"La course folle","registered_at":"2026-06-25T22:31:29Z","spotify_id":"1M8RSwx2wwuLjFqTljZkY6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdfb1fd1e7b0b9db15de10ea24564057d8b76f6fb351e8b92d1f5c82051dec5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1M8RSwx2wwuLjFqTljZkY6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1M8RSwx2wwuLjFqTljZkY6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad1ed37f006363ea6237d1830d55a8457227793b5194bb0df4acf9a629a2f13. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0v1GKTg1Ll4w2A4L61B9cM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0v1GKTg1Ll4w2A4L61B9cM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d704fb66056974561c00f45d4825b1eb12762965bd6d5c95729c7d8a136a8c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6CxkxeTOTG0gh2FGCPhuGw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CxkxeTOTG0gh2FGCPhuGw.
{"copyright_id":"0xc6426bce13402781232cbecb0d4a636d55c9d2f9d076461bccff1d8efa02f649","isrc":"FRZ052100168","name":"La légèreté","registered_at":"2026-06-24T14:51:33Z","spotify_id":"5okJZ8IerWE9ILlYWcDmIg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6426bce13402781232cbecb0d4a636d55c9d2f9d076461bccff1d8efa02f649. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5okJZ8IerWE9ILlYWcDmIg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5okJZ8IerWE9ILlYWcDmIg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce41fe78e56e541de9380383359e0361d0c0ded2e195a3a022874eb717e317a2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6bgfDdEXH3EU5pD2MiVAGl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6bgfDdEXH3EU5pD2MiVAGl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6163a08aca8ae0db8b385c3165c6175c6160dce0ed47095061a3204d8aba5470. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/35ckX61VGDv14pDPkZPdMY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/35ckX61VGDv14pDPkZPdMY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181072e780e3d9e040ac3cda19fde079c058aeb369b97d7763cdc7af50cc7d3a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/48gIzCXG4muUljAKza6gIK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/48gIzCXG4muUljAKza6gIK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f03ad9719f431821bce0348bb1af3e20b387b09b2c31520a26bccc29c8ea6f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/15LtxUWxvh0BNwjMkSCPOZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/15LtxUWxvh0BNwjMkSCPOZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189f09dd0729af195f355915dfea42526483f9686463553a07fec861fed008e6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6yd2ybD6P4IYAB9qG1IMQI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6yd2ybD6P4IYAB9qG1IMQI.
{"copyright_id":"0xb44d724eb616e86ac7ccd10d7008aacf530ae287441c776908b9e21a9e55546b","isrc":"FRZ052000540","name":"Jesu, Joy of Man's Desiring","registered_at":"2026-06-24T14:51:03Z","spotify_id":"22j6kZRyjdzeJDYLYBEj4A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d724eb616e86ac7ccd10d7008aacf530ae287441c776908b9e21a9e55546b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/22j6kZRyjdzeJDYLYBEj4A.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/22j6kZRyjdzeJDYLYBEj4A.
Organ Sonata No. 3 in D Minor, BWV 527: Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16de5560d278be364bea9d803aa9b758b74f56b3228c3f687fdcb5ac902baa7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2JxZhWSYESth3iXh3IMBle.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2JxZhWSYESth3iXh3IMBle.
Violin Sonata in A Major, BWV 1015: Allegro assai
Cantata (Sheep May Safely Graze, BWV 208-IX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181072e780e3d9e040ac3cda19fde079c058aeb369b97d7763cdc7af50cc7d3a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1hEzYdihpLSj1h5LNi36Ob.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1hEzYdihpLSj1h5LNi36Ob.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f03ad9719f431821bce0348bb1af3e20b387b09b2c31520a26bccc29c8ea6f9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IQ8zcbxPhXSnT9fPnTJyo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7IQ8zcbxPhXSnT9fPnTJyo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189f09dd0729af195f355915dfea42526483f9686463553a07fec861fed008e6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6d4fnfDodHVoA4TzjmcXkw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6d4fnfDodHVoA4TzjmcXkw.
{"copyright_id":"0xb44d724eb616e86ac7ccd10d7008aacf530ae287441c776908b9e21a9e55546b","isrc":"FRZ052000540","name":"Jesu, Joy of Man's Desiring","registered_at":"2026-06-24T14:51:03Z","spotify_id":"0eSu0ZkEJ4IWXLdGWcc7tN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d724eb616e86ac7ccd10d7008aacf530ae287441c776908b9e21a9e55546b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0eSu0ZkEJ4IWXLdGWcc7tN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0eSu0ZkEJ4IWXLdGWcc7tN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f06849f32aaa197739ede10bb3d5256faba24bf4cd4855163fb886d1a6712e8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7etGOxqLwHJv5h13BVqAIM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7etGOxqLwHJv5h13BVqAIM.
{"copyright_id":"0x42518b334fa962d75a1a4e488646a77e39c3bb7dd22fb6ef2f4a13e018935b84","isrc":"FRZ052000543","name":"Organ Sonata No. 3 in D Minor, BWV 527: Vivace","registered_at":"2026-06-27T05:29:56Z","spotify_id":"4ThI8e79JL9VulZYnYRHTw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42518b334fa962d75a1a4e488646a77e39c3bb7dd22fb6ef2f4a13e018935b84. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ThI8e79JL9VulZYnYRHTw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ThI8e79JL9VulZYnYRHTw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16de5560d278be364bea9d803aa9b758b74f56b3228c3f687fdcb5ac902baa7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7jD6jWJr3OqkfF0PLmjLZ6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7jD6jWJr3OqkfF0PLmjLZ6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f29a075c62a2aff58ff714fb0a28527c399bc25a87c89fdab76f436953d3b6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6kjjrm4qghVCDZ5Roa3V5j.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6kjjrm4qghVCDZ5Roa3V5j.
{"copyright_id":"0x35443db3e8237a30b283b699261b36644be7209e928f02070a8efb9bf8e2ba76","isrc":"FRZ052000547","name":"Cantata (Sheep May Safely Graze, BWV 208-IX)","registered_at":"2026-06-27T05:19:56Z","spotify_id":"6jZPVUruw9B8bSP0ORyloT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35443db3e8237a30b283b699261b36644be7209e928f02070a8efb9bf8e2ba76. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6jZPVUruw9B8bSP0ORyloT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6jZPVUruw9B8bSP0ORyloT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613c56ba3882491d1c7047d3b56cf2455002cfe19ef2d234e432fe39f676d79e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2YVwABBf11jgYD61o8IfD9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2YVwABBf11jgYD61o8IfD9.
{"copyright_id":"0x505a003e5b4f2932aad190fc45cd5f9d0f3893d91fc01c995b3a53d3a850f11f","isrc":"FRZ052000548","name":"Air (After Air on the G String)","registered_at":"2026-06-21T04:16:06Z","spotify_id":"0qwS8dhqoUvrGxzuelUSoX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505a003e5b4f2932aad190fc45cd5f9d0f3893d91fc01c995b3a53d3a850f11f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0qwS8dhqoUvrGxzuelUSoX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0qwS8dhqoUvrGxzuelUSoX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bf44c65e71d9fe5a541a5ac7421953279b5b0f9382ad5ac80dba46feae2643. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1PIEVHW9jb6vkdytIe9y6K.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PIEVHW9jb6vkdytIe9y6K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010d5766cb9bf4f8292a15315ae169c7565a412fd3304949d1894b6ab2f0de1d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0VDFuepjkFql65x8p6CPA5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0VDFuepjkFql65x8p6CPA5.
Sonata for two pianos in D Major K.448 - Transcribed for piano and marimba: I. Allegro con spirito
Sonata for two pianos in D Major K.448 - Transcribed for piano and marimba: II. Andante
Sonata for two pianos in D Major K.448 - Transcribed for piano and marimba: III. Molto allegro
Dilmano Dilbero, variations on a Bulgarian folk song
Sonata for solo violin in G minor BWV 1001 – Fuga
Aquarium (Improvisation after Le Carnaval des animaux by Camille Saint-Saëns)
{"copyright_id":"0x45f23e7b5a8a0d4be0d9bab932bb482ce75fdb4dbf9e4dc966c08e2300912689","isrc":"FRUM71600413","name":"Bitter Sweet Symphony","registered_at":"2026-06-27T05:19:54Z","spotify_id":"7wOCOv9FrVuOLfcVPnMeGJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f23e7b5a8a0d4be0d9bab932bb482ce75fdb4dbf9e4dc966c08e2300912689. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7wOCOv9FrVuOLfcVPnMeGJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7wOCOv9FrVuOLfcVPnMeGJ.
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Agnus Dei pour choeur et l'Adagio du quatuor, Op. 11: "Agnus Dei" (Arr. for Cello and Strings Quintet)
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Requiem in D Minor, K. 626: III. Sequentia: Lacrimosa
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Variations on an Original Theme, Op. 36 "Enigma": Var. 9, Nimrod
Cello Ensemble of the Amsterdam Sinfonietta
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Dido and Aeneas, Z. 626: Act III: When I am Laid in Earth
Suite Bergamasque, L. 75: III. Clair de lune
Piano Concerto No. 2 in F Major, Op. 102: II. Andante
Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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The Seasons, Op. 37b: X. October (Autumn Song)
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Spiegel im Spiegel (Arr. for Marimba and Violoncello)
Requiem en ré mineur, Op. 48: "Pie Jesu"
Songs without Words, Op. 67, No. 3 in B-Flat Major: Andante tranquillo
Peer Gynt Suite No. 1, Op. 46: Ase's Death
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String Quartet No. 3, "Mishima": VI. Mishima / Closing
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Symphony No. 5 in C-Sharp Minor: Adagietto: Sehr langsam
Symphony No. 5 in E Minor, Op. 64: Andante cantabile, con alcuna licenza
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Musique classique pour travailler, lire, dormir
Suite pour violoncelle No.1 en sol majeur, BWV 1007: Praeludium
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Werther: Pourquoi me réveiller (Arr. for Cello and Piano)
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L'Inverno (Winter) Op. 8 No. 4 in F minor: II. Largo
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Vivaldi Variation (Arr. for Piano from Concerto for Strings in G Minor, RV 156 by F. Christl)
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Violin Concerto in A Minor, RV 356: II. Largo
Samson et Dalila, Op. 47: Mon coeur s'ouvre à ta voix (Arr. for Cello and Piano)
Pavane, Op. 50 (Arr. for Chamber Ensemble)
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5 Stücke im Volkston, Op. 102: II. Langsam
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L'invitation au château, FP 138: Acte 2: Mouvement de valse. Hésitation III
Songs without Words, Op. 38, No. 2 in C Minor: Andante
Jazz Piano French Touch - Terrasson, Herman, Enhco
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Brahms: 21 Hungarian Dances (Orchestra), WoO 1: No. 6 in D-Flat Major (Vivace)
Dvorák: From the Bohemian Forest, Op. 68, B. 133: V. Silent Woods
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Kreisler: 3 Old Viennese Dances: No. 2, Liebesleid
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Schubert: Piano Quintet in A Major, D. 667 "The Trout": IV. Thema e variazioni. Andante
Paganini: Violin Concerto No. 2 in B Minor, Op. 7: III. Rondo "La campanella" (Arr. Kreisler for Violin and Piano)
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Bach, JS / Orch Mahler: Orchestral Suite No. 3 in D Major, BWV 1068: II. Aria (Orch. Mahler)
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Rachmaninov: Trio élégiaque No. 1 in G Minor, TN ii/34
Brahms / Orch. Herzog: 5 Lieder, Op. 49: IV. Wiegenlied (Orch. Herzog)
Anonymous / Transcr. Lehn: The 2 Guitars (Transcr. Lehn for Quintet)
Marcello: Oboe Concerto in D Minor, S. Z799: II. Adagio (Orch. Herzog)
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Revaud & François / Transcr Berthollet C, J & Vincent: My Way (Transcr. Berthollet C. & J. & Vincent for Trio)
Rachmaninov: 2 Pieces for 6 Hands, TN ii/22: II. Romance in A Major (Andante sostenuto)
Piano relaxant : Le meilleur du piano classique
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Préludes, Livre I L.117: VIII. La fille aux cheveux de lin
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Piano Sonata No. 14 in C-sharp minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
On The Nature Of Daylight - Piano Version
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Piano Sonata No. 14 in A Minor, D. 784: II. Andante
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The Well-Tempered Clavier, Book I: Prelude No. 1 in C Major, BWV 846
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13 Pieces for Piano, Op. 76: Elegiaco, No. 10
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Monti: Csárdás (Arr. Berthollet for 2 Violins and Piano)
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Gounod: Ave Maria (After Bach's Prelude, BWV 846) [Arr. Berthollet for Piano Trio]
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Rimsky-Korsakov: The Tale of Tsar Saltan, Act 3: The Flight of the Bumblebee (Orch. Sándor)
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
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Delibes: Lakmé, Act 1: Duo des fleurs (Instrumental Version)
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
String ensemble of the Orchestre National du Capitole de Toulouse
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Popper: Hungarian Rhapsody, Op. 68 (Arr. Berthollet for Cello and Piano)
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Chopin: Nocturne No. 20 in C-Sharp Minor, Op. Posth. (Arr. Berthollet for Violin and Piano)
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La valse des noces (Arr. Samuel Pegg d'après Le Beau Danube bleu, Op. 314 de Johann Strauss II)
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Joplin: The Entertainer (Arr. Berthollet for 2 Violins and Piano)
Schubert: Piano Trio No. 2 in E-Flat Major, Op. 100, D. 929: II. Andante con moto
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Brahms: 21 Hungarian Dances, WoO 1: No. 5 in F-Sharp Minor (Orch. Bouchard)
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Tchaikovsky: Suite from Swan Lake, Op. 20a: I. Scene "Swan Theme" (Arr. Berthollet for Piano Trio)
Schubert: Schwanengesang, D. 957: No. 4, Ständchen (Version for Violin and Piano)
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Le ballet des épousailles (Arr. Martin Batchelar d'après l'ouverture de Guillaume Tell de Gioacchino Rossini)
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Vivaldi: L'estro armonico, Op. 3: Concerto No. 10 for Four Violins in B Minor, RV 580: I. Allegro
Dvořák: Rondo for Cello and Orchestra in G Minor, Op. 94, B. 181
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Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto (Arr. Berthollet for Piano Trio)
Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
Gluck: Orfeo ed Euridice, Wq. 30, Act 2: Dance of the Blessed Spirits (Arr. Kreisler for Violin and Piano)
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Tchaikovsky: 6 Pieces, Op. 51: No. 6, Valse sentimentale (Arr. Berthollet for Cello and Piano)
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Puccini: Gianni Schicchi: "O mio babbino caro" (Instrumental Version)
Halvorsen: Passacaglia for Violin and Cello (After Handel's Keyboard Suite, HWV 432)
Le cortège (Arr. Samuel Pegg d'après la Danse macabre, Op. 40 de Camille Saint-Saëns)
Piazzolla: Libertango (Arr. Berthollet for 2 Violons and Piano)
Misa Criolla - Gloria - Carnavalito-Yaravi
Misa Criolla - Sanctus - Carnaval Cochabambino
Misa Criolla - Agnus Dei - Estilo Pampeano
Navidad Nuestra - La Anunciación - Chamame
Navidad Nuestra - La Peregrinación - Huella
Navidad Nuestra - El Nacimiento - Vidala catamarqueña
Navidad Nuestra - Los Pastores - Chaya riojana
Navidad Nuestra - Los Reyes Magos - Takirari
Navidad Nuestra - La Huida - Vidala Tucumana
Elle & lui et le reste du monde (Bande originale du film)
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Vous voulez pas arrêter de m'appeler Madame ?
Faire des trucs fous quand on est amoureux
Un Mondo in Più (Bande originale du film)
Diego takes pictures of Tea - Bonus Track
Rêverie (Kinderszenen Op. 15 n°7: Träumerei) - Live
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(You Make Me Feel Like) A Natural Woman - Live
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Concerto for Piano and Orchestra: Allegro
Concerto for Piano and Orchestra: Andante
Concerto for Piano and Orchestra: Finale
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Les Parapluies De Cherbourg (I Will Wait for You)
Kinderszenen Op.15 (Scenes From Childhood)
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(You Make Me Feel Like) A Natural Woman [Live]
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Thirty - EP (Excerpts from Concerto for Piano and Orchestra)
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Temps Calme : Musique douce pour enfants et bébés
Wiegenlied, Op. 49, No. 4 (Arr. for Cello and Piano) [Brahms Lullaby]
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The Carnival of the Animals, R. 125: XIII. The Swan
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air "On a G String" (Arr. for Piano)
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Concerto for Oboe and Strings in D minor, Op. 1: Adagio
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Album für die Jugend, Op. 68: No. 1, Melodie
Dances of the Dolls, 7 pieces for Piano: VII. Dance
Lost in the Stars: Lost in the Stars - Arr. for Cello and Piano by Thomas Enhco & Christian-Pierre La Marca