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 0xe7b4693caf28adf6418b7a6cf80db01add7945a3da2a91e02e85e5338c07a7dc. 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/b63c1c16-b6e8-45fa-b441-5f3d03ac4f13.json and https://artists.proofprofile.net/proofs/artist/b63c1c16-b6e8-45fa-b441-5f3d03ac4f13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x9be487a54538598a8bf0dc519a7e7a6bb32fcb5e6ebbb0d631f16ee2007aeee2","isrc":"DEE861601213","name":"Moments - Demo Version","registered_at":"2026-06-28T20:19:24Z","spotify_id":"7GKH2rr5n9g3VuQkj0SgMU","type":"track"}
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 0x9be487a54538598a8bf0dc519a7e7a6bb32fcb5e6ebbb0d631f16ee2007aeee2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7GKH2rr5n9g3VuQkj0SgMU.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/7GKH2rr5n9g3VuQkj0SgMU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf615a9368307ec9aff0d0c3b40526d72d1d5cd04b57d2f5da6cae57a1cc9b01f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kGMGFvc7EFzY4T9AbB3d7.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/4kGMGFvc7EFzY4T9AbB3d7.
Vivaldi Variation (Arr. for Piano from Concerto for Strings in G Minor, RV 156 by F. Christl)
{"copyright_id":"0xac370ec7ce39b3c42341cb09f18f08883ed5210193113d2e849f5fe077da18ca","isrc":"DEE861805282","name":"Vivaldi Variation (Arr. for Piano from Concerto for Strings in G Minor, RV 156 by F. Christl)","registered_at":"2026-06-10T15:26:02Z","spotify_id":"1Tv5RwngtOji3xp84vAmfR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac370ec7ce39b3c42341cb09f18f08883ed5210193113d2e849f5fe077da18ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Tv5RwngtOji3xp84vAmfR.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/1Tv5RwngtOji3xp84vAmfR.
Tempesta for 2 Pianos inspired by Coriolan, Op. 62 by Beethoven
{"copyright_id":"0xcae924bdd0c428aa50aac479bb6c22a5edc2a1382b14e2be2a4c53143927637f","isrc":"DEE862000042","name":"Ungewiss - Solo Piano Version","registered_at":"2026-06-29T00:55:05Z","spotify_id":"2A7nz1cR2I7ItXy7tcnSx4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae924bdd0c428aa50aac479bb6c22a5edc2a1382b14e2be2a4c53143927637f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2A7nz1cR2I7ItXy7tcnSx4.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/2A7nz1cR2I7ItXy7tcnSx4.
Schumann Variation (on a Theme from Piano Concerto in A Minor, Op. 54: I)
Vivaldi Variation (Arr. for Piano from Concerto for Strings in G Minor, RV 156) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed33edc0f407982432690a40e3c079974220067b8438a90b412c316007ce1e5. 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/0PaIdSdeh57LecE8Xsl2mp.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/0PaIdSdeh57LecE8Xsl2mp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b35fd23a8de950098b5a2b3e2bea78185222fe42290fc9659c6515de5e27547. 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/7gCe1GT0MIuJfjmF1bTf0g.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/7gCe1GT0MIuJfjmF1bTf0g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9454232d5d573b69f6f028b67a8aba3ddf401cd60349948ddd34b121c04e94ff. 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/7FvBvdIbruPfVs841LDLl4.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/7FvBvdIbruPfVs841LDLl4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280983a44036a701db08814a8bccd0385c55a209ee8128d4290a68a711507c82. 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/0xRe8G77W5rV3S0QGUzWYO.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/0xRe8G77W5rV3S0QGUzWYO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2703980a546abd32ecbca153f021e4ffc3b9c850fc9303da6c745d95365219dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1TWKlINqC5BgDrtDAPGXPe.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/1TWKlINqC5BgDrtDAPGXPe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b35fd23a8de950098b5a2b3e2bea78185222fe42290fc9659c6515de5e27547. 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/0LNOe29F2abGzJV8BUPwSP.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/0LNOe29F2abGzJV8BUPwSP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9454232d5d573b69f6f028b67a8aba3ddf401cd60349948ddd34b121c04e94ff. 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/7xzE6nLavar9WTIS7R11al.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/7xzE6nLavar9WTIS7R11al.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed33edc0f407982432690a40e3c079974220067b8438a90b412c316007ce1e5. 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/3XjFBaKcJYYPVBjwjWZv1D.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/3XjFBaKcJYYPVBjwjWZv1D.
{"copyright_id":"0xa091f33d0fc08a263b1d159b87b117a07d9e824bf1e6dac2fa0550508722f3e2","isrc":"DEE862200317","name":"Entre présent et avenir","registered_at":"2026-06-09T09:00:36Z","spotify_id":"6XYQ1VkiAPtyRAIXK3uw2a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa091f33d0fc08a263b1d159b87b117a07d9e824bf1e6dac2fa0550508722f3e2. 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/6XYQ1VkiAPtyRAIXK3uw2a.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/6XYQ1VkiAPtyRAIXK3uw2a.
{"copyright_id":"0x252d5aeab22a751323e6bbe1c744b0adaefc20aa54b1bdf1eac64b41de8e5b32","isrc":"DEE862200318","name":"Mono No Aware","registered_at":"2026-06-10T18:55:58Z","spotify_id":"07dNcj209oQs5ZqGnNZPnr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252d5aeab22a751323e6bbe1c744b0adaefc20aa54b1bdf1eac64b41de8e5b32. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/07dNcj209oQs5ZqGnNZPnr.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/07dNcj209oQs5ZqGnNZPnr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc868daa01d1969d9d2315dded11688dd0e39977630c6fa63ba8cc6955d8448. 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/6GaTZjoIhjAbHyepVWeMQm.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/6GaTZjoIhjAbHyepVWeMQm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2703980a546abd32ecbca153f021e4ffc3b9c850fc9303da6c745d95365219dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3QlFbIvOs4llePJVhaWqzk.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/3QlFbIvOs4llePJVhaWqzk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b48d7f67940443611864871f76e11798ccb284c53a1133bf7e216935d4a7ea6. 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/1fbmhlzO0xQCgsN45FOJRf.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/1fbmhlzO0xQCgsN45FOJRf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbb5ef6cfbd80400859944508f5f91241d15a96772d74013b767c669dce6059. 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/0rs7jOjBKpkTzDNgq0KNYP.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/0rs7jOjBKpkTzDNgq0KNYP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280983a44036a701db08814a8bccd0385c55a209ee8128d4290a68a711507c82. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Ulu0zJi9TzjIz6TUdROdM.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/6Ulu0zJi9TzjIz6TUdROdM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fd44d9c5badb097feb512ad10012acbba9ef75bacd2e55492bb4ba8a3a6457. 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/0VMWPmziTknbiZ0pl4Joq9.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/0VMWPmziTknbiZ0pl4Joq9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b51b1726c4031cc6fdbfd45d48b5f2d09291e9b7b99829bf68a4bb3d0c0e23. 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/6Zija1bd9MV6v39CbOJAqK.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/6Zija1bd9MV6v39CbOJAqK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d5113ec9d85f963b342a7666b21ad43f966e49c76a24b304f353ebd14428a6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3lOVcFVz5YXM2x3mwqgTX9.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/3lOVcFVz5YXM2x3mwqgTX9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309612125574f1f070d1ac6a9f890be10bdb3b1cb522fd22aa4eb7e4153cf57b. 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/3dL2NE8G5mCDtJ0aqaAxth.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/3dL2NE8G5mCDtJ0aqaAxth.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4dac1a64a4140e283dd6bf2511b91201e7d96d3d3581d97674dfde746ccc50. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/409GR6CNQMVuevf1IMpTeX.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/409GR6CNQMVuevf1IMpTeX.
Mozart Variation (After Serenade, K. 250 "Haffner", IV. Rondo, Arr. for Cello & Piano by Florian Christl)
Liszt Variation (After Im Rhein, im schönen Strome, S. 272, Arr. for Piano by Florian Christl)
Mendelssohn Variation (From Violin Concerto, Op.64/MWV O14: I. Allegro molto appassionato, Arr. for Violin, Piano & Orchestra by Florian Christl)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585b8663d08e9225f88b2d35e0932030e3c006420e95f62ceac943bb3f134d10. 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/3F2xWufrKMhxpEFDrcYfv6.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/3F2xWufrKMhxpEFDrcYfv6.
Bach Variation (Arr. for Violin, Piano and Orchestra after Violin Concerto in A-Minor, BWV 1041: II. Andante by Florian Christl)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0a55071fa843a565728bd3e23b6b7e33268edf10d23640bc756f91b9d1d55d. 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/12lGW8R28mcyxljbu9snht.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/12lGW8R28mcyxljbu9snht.
{"copyright_id":"0xac370ec7ce39b3c42341cb09f18f08883ed5210193113d2e849f5fe077da18ca","isrc":"DEE861805282","name":"Vivaldi Variation (Arr. for Piano from Concerto for Strings in G Minor, RV 156 by F. Christl)","registered_at":"2026-06-10T15:26:02Z","spotify_id":"4jH3wLYfc3v7stuJVAW9Vw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac370ec7ce39b3c42341cb09f18f08883ed5210193113d2e849f5fe077da18ca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4jH3wLYfc3v7stuJVAW9Vw.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/4jH3wLYfc3v7stuJVAW9Vw.
Classical Music Essentials - Best of Orchestral and Piano Classics
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac370ec7ce39b3c42341cb09f18f08883ed5210193113d2e849f5fe077da18ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/77UqDrPmFXvHdL5feR5HXs.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/77UqDrPmFXvHdL5feR5HXs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585b8663d08e9225f88b2d35e0932030e3c006420e95f62ceac943bb3f134d10. 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/3Hd4BN4ZZYornLAFO5Ehgt.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/3Hd4BN4ZZYornLAFO5Ehgt.
Musique classique pour travailler, lire, dormir
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac370ec7ce39b3c42341cb09f18f08883ed5210193113d2e849f5fe077da18ca. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/74MU1F6bg09a0iN2agmr2R.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/74MU1F6bg09a0iN2agmr2R.
Musik zum Entspannen - Klassik zum Träumen
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Christmas Piano Music - Instrumental Holiday Hits
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Beethoven Variation (After String Quartet No. 13, Op. 130: II)
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Peaceful Classics - Relaxing Classical Music
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