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 0x18fdb0856865c399d19d025258b86c55196b5a01c9d0612dd9954bf1a58132c0. 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/cfa1c662-6778-4cdf-bf8b-1f8b1e62ffb6.json and https://artists.proofprofile.net/proofs/artist/cfa1c662-6778-4cdf-bf8b-1f8b1e62ffb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Liegen ist Frieden (feat. Ina Müller & Band) - Live bei Inas Nacht
{"copyright_id":"0x8ab02fc0a6e00ab1c1e83d62b378a63cadaa73be74a3597591dc936a3f41265a","isrc":"DEUM71906639","name":"Liegen ist Frieden (feat. Ina Müller & Band) - Live bei Inas Nacht","registered_at":"2026-06-07T01:56:04Z","spotify_id":"1fBlBa5SmV9ALztfrjYYHg","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 0x8ab02fc0a6e00ab1c1e83d62b378a63cadaa73be74a3597591dc936a3f41265a. 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/1fBlBa5SmV9ALztfrjYYHg.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/1fBlBa5SmV9ALztfrjYYHg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa938052a47095296ecbd8e8e16d176d43c3ef61383e40f712bac61e3994a9833. 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/2PciGD48PFad77fxYhqh7U.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/2PciGD48PFad77fxYhqh7U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05226b4ba41386350f355c719f4c15975cf593b75cb79a79bf7f61cdd7c9d710. 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/6IrD4Zu70D21Osa8YtnTQc.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/6IrD4Zu70D21Osa8YtnTQc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f88dc63347036a0abfe07780370edbef98b4c35028ff13fd77e5094694cb7b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5KHhZf57AMnU1Rpxob1SCD.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/5KHhZf57AMnU1Rpxob1SCD.
{"copyright_id":"0xc439de7a3c446ec29c3c9a09ee5ddd68bad584f1cfc647c21b838d92bc5b8129","isrc":"DEUM71906190","name":"Bei mir läuft überhaupt nichts","registered_at":"2026-06-20T09:03:20Z","spotify_id":"0SVQOvSnt0UZG1kHFEIQma","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc439de7a3c446ec29c3c9a09ee5ddd68bad584f1cfc647c21b838d92bc5b8129. 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/0SVQOvSnt0UZG1kHFEIQma.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/0SVQOvSnt0UZG1kHFEIQma.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa938052a47095296ecbd8e8e16d176d43c3ef61383e40f712bac61e3994a9833. 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/37Gj9OwDbh4UsZgom3PZfU.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/37Gj9OwDbh4UsZgom3PZfU.
Liebe - Die schönsten deutschsprachigen Liebeslieder & Balladen
Valentinstag 2023 - Die schönsten deutschsprachigen Liebeslieder
Mini Disco Hits - Die beliebtesten Partylieder für Kinder
{"copyright_id":"0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2","isrc":"DEE862200015","name":"Wovor hast du Angst","registered_at":"2026-06-05T06:36:27Z","spotify_id":"2mQk4OcAk3T2xKgeKRT4V3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2. 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/2mQk4OcAk3T2xKgeKRT4V3.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/2mQk4OcAk3T2xKgeKRT4V3.
{"copyright_id":"0xcd9cad8c9b2eb36355ce4b3d0835043172304d12d032fbec29a9eb0224e0abb8","isrc":"DEE862200085","name":"Wovor hast du Angst - Akustik Version","registered_at":"2026-06-09T06:44:41Z","spotify_id":"0KTvOxIbNUtIa5iqcsZizX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9cad8c9b2eb36355ce4b3d0835043172304d12d032fbec29a9eb0224e0abb8. 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/0KTvOxIbNUtIa5iqcsZizX.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/0KTvOxIbNUtIa5iqcsZizX.
{"copyright_id":"0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2","isrc":"DEE862200015","name":"Wovor hast du Angst","registered_at":"2026-06-05T06:36:27Z","spotify_id":"63CN0ZWaK9DX6gyHvP0WkR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2. 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/63CN0ZWaK9DX6gyHvP0WkR.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/63CN0ZWaK9DX6gyHvP0WkR.
{"copyright_id":"0xcd9cad8c9b2eb36355ce4b3d0835043172304d12d032fbec29a9eb0224e0abb8","isrc":"DEE862200085","name":"Wovor hast du Angst - Akustik Version","registered_at":"2026-06-09T06:44:41Z","spotify_id":"07znJWzXGI97GjBnxgDN9B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9cad8c9b2eb36355ce4b3d0835043172304d12d032fbec29a9eb0224e0abb8. 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/07znJWzXGI97GjBnxgDN9B.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/07znJWzXGI97GjBnxgDN9B.
{"copyright_id":"0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2","isrc":"DEE862200015","name":"Wovor hast du Angst","registered_at":"2026-06-05T06:36:27Z","spotify_id":"5oE4q9YhpvXwMFrMGBnogw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5oE4q9YhpvXwMFrMGBnogw.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/5oE4q9YhpvXwMFrMGBnogw.
{"copyright_id":"0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2","isrc":"DEE862200015","name":"Wovor hast du Angst","registered_at":"2026-06-05T06:36:27Z","spotify_id":"5hVbEQ5uaAyrOaAQt1JHep","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db59d4803c68fd7b7d07a7df2b56a2e056dce141c679adc4498d9b3444e8af2. 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/5hVbEQ5uaAyrOaAQt1JHep.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/5hVbEQ5uaAyrOaAQt1JHep.
{"copyright_id":"0x777172be5442de32842c1e7000df974e8e4fb176f198747aee3ac2cda8ad29e1","isrc":"DEC712309137","name":"Allerbeste Freunde","registered_at":"2026-06-17T22:37:33Z","spotify_id":"5pbIUeP5Q6qxRteD2clpGN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777172be5442de32842c1e7000df974e8e4fb176f198747aee3ac2cda8ad29e1. 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/5pbIUeP5Q6qxRteD2clpGN.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/5pbIUeP5Q6qxRteD2clpGN.