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 0xfa80beb36d74e815c353ed866e251bdcc6a42bb31424d363d2e799611dc888e2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a610ccc3-479f-4b58-bcdd-21d178573ec7.json and https://artists.proofprofile.net/proofs/artist/a610ccc3-479f-4b58-bcdd-21d178573ec7.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 0x65d89e6e296229767260b5f618d7a1bb45a9b91ddece7da65bc22aaee98d8479. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4dLIAE3xbJLoiIBbKkZWJk.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/4dLIAE3xbJLoiIBbKkZWJk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4db410d164ba8e32e3e2c1c42803cc268d5be4010b14e39f509cbd50b05887e. 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/1yZntW925nLegBydduhjWN.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/1yZntW925nLegBydduhjWN.
Good Mood (Original Song From Paw Patrol: The Movie)
Lifestyle (feat. Adam Levine) [David Guetta Slap House Mix]
Lifestyle (feat. Adam Levine) - David Guetta Slap House Mix
{"copyright_id":"0xe41e15f979eac5ade7768c1bf0943aee9c9c52c20f7a1f504022fb272ed59df2","isrc":"USAT22100493","name":"Lifestyle (feat. Adam Levine) - David Guetta Slap House Mix","registered_at":"2026-06-05T04:17:14Z","spotify_id":"0cVWsZDecQYXWY4j1KjhDg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41e15f979eac5ade7768c1bf0943aee9c9c52c20f7a1f504022fb272ed59df2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0cVWsZDecQYXWY4j1KjhDg.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/0cVWsZDecQYXWY4j1KjhDg.
Lifestyle (feat. Adam Levine) [MKJ Remix]
Lifestyle (feat. Adam Levine) - MKJ Remix
{"copyright_id":"0xd300d851b5a27897af564cd15a5cd69fee231f9abf706f83f43cf7519002caad","isrc":"USAT22100903","name":"Lifestyle (feat. Adam Levine) - MKJ Remix","registered_at":"2026-06-07T17:28:00Z","spotify_id":"5jjLODeqOHiBNluniMjNZj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd300d851b5a27897af564cd15a5cd69fee231f9abf706f83f43cf7519002caad. 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/5jjLODeqOHiBNluniMjNZj.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/5jjLODeqOHiBNluniMjNZj.
Lifestyle (feat. Adam Levine) [GOLDHOUSE Remix]
Lifestyle (feat. Adam Levine) - GOLDHOUSE Remix
{"copyright_id":"0x0b7bd4d8aea3852edb110a961d7957f530df61dfa535ee208ff72e52404d5673","isrc":"USAT22100748","name":"Lifestyle (feat. Adam Levine) - GOLDHOUSE Remix","registered_at":"2026-06-20T23:10:28Z","spotify_id":"1h5pJb8CNa7OoXyedd1Ggy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7bd4d8aea3852edb110a961d7957f530df61dfa535ee208ff72e52404d5673. 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/1h5pJb8CNa7OoXyedd1Ggy.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/1h5pJb8CNa7OoXyedd1Ggy.
{"copyright_id":"0x43dede93b61045603ff0ab879546d754b05f42bd312b4580f704dfe6a5aad140","isrc":"USAT22100064","name":"Lifestyle (feat. Adam Levine)","registered_at":"2026-06-02T01:52:14Z","spotify_id":"0osvOdeD3YXZiWkT8MKolJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dede93b61045603ff0ab879546d754b05f42bd312b4580f704dfe6a5aad140. 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/0osvOdeD3YXZiWkT8MKolJ.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/0osvOdeD3YXZiWkT8MKolJ.
{"copyright_id":"0x0a35b5da9abd6915bcc21823e1f8975f46c077da7ff5a4c8a267b05a6ded43b8","isrc":"USUM71406881","name":"Lost Stars","registered_at":"2026-06-06T00:49:30Z","spotify_id":"6i87BCsPUiPLtBqTEK6Y4A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a35b5da9abd6915bcc21823e1f8975f46c077da7ff5a4c8a267b05a6ded43b8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6i87BCsPUiPLtBqTEK6Y4A.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/6i87BCsPUiPLtBqTEK6Y4A.
{"copyright_id":"0x4554fb6b7a5c79ecd07dbef0c23510ace8a9934af33f01fbeff522f4b10bf035","isrc":"USUM71204877","name":"Yesterday - The Voice Performance","registered_at":"2026-06-05T10:11:19Z","spotify_id":"5fvETjmhp6xoCQKVAjklVE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4554fb6b7a5c79ecd07dbef0c23510ace8a9934af33f01fbeff522f4b10bf035. 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/5fvETjmhp6xoCQKVAjklVE.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/5fvETjmhp6xoCQKVAjklVE.
Man In The Mirror (The Voice Performance)
Man In The Mirror - The Voice Performance
{"copyright_id":"0x5900e68fd027015b4404168cfd4b17240668398c74f263e533f8f64f3b2d460f","isrc":"USUM71110610","name":"Man In The Mirror - The Voice Performance","registered_at":"2026-06-04T13:55:35Z","spotify_id":"2zSxo9FebD1H3kk7bTxNzA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5900e68fd027015b4404168cfd4b17240668398c74f263e533f8f64f3b2d460f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zSxo9FebD1H3kk7bTxNzA.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/2zSxo9FebD1H3kk7bTxNzA.
{"copyright_id":"0xc5fe546864c56c1e9ad96bf3cc54540460e6f9686bc80aecc27da0b9b0dbe24f","isrc":"USAT21101071","name":"Stereo Hearts (feat. Adam Levine)","registered_at":"2026-06-01T03:00:12Z","spotify_id":"0qOnSQQF0yzuPWsXrQ9paz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fe546864c56c1e9ad96bf3cc54540460e6f9686bc80aecc27da0b9b0dbe24f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0qOnSQQF0yzuPWsXrQ9paz.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/0qOnSQQF0yzuPWsXrQ9paz.
{"copyright_id":"0x8f93c3cd22a7b2dff46eaa240bc35ddceb09b9ee2bcc4c21b8bbb0b3f54f96d5","isrc":"USUM70502535","name":"Heard 'Em Say","registered_at":"2026-06-01T09:16:46Z","spotify_id":"6yIjtVtnOBeC8SwdVHzAuF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f93c3cd22a7b2dff46eaa240bc35ddceb09b9ee2bcc4c21b8bbb0b3f54f96d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6yIjtVtnOBeC8SwdVHzAuF.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/6yIjtVtnOBeC8SwdVHzAuF.
Good Mood - Original Song From Paw Patrol: The Movie
{"copyright_id":"0x331a29e7ca78a1310ac0162b1ae9611f14b80a0631811318c9a6471939ebde3c","isrc":"USUM72113460","name":"Good Mood - Original Song From Paw Patrol: The Movie","registered_at":"2026-06-01T12:16:44Z","spotify_id":"4uX1pkSuSidzJxT4eWL7x1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331a29e7ca78a1310ac0162b1ae9611f14b80a0631811318c9a6471939ebde3c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4uX1pkSuSidzJxT4eWL7x1.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/4uX1pkSuSidzJxT4eWL7x1.
Lifestyle (Jason Derulo ft. Adam Levine)
{"copyright_id":"0x43dede93b61045603ff0ab879546d754b05f42bd312b4580f704dfe6a5aad140","isrc":"USAT22100064","name":"Lifestyle (Jason Derulo ft. Adam Levine)","registered_at":"2026-06-03T05:25:28Z","spotify_id":"4rEe3htSUbJbO8kJePhHBx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dede93b61045603ff0ab879546d754b05f42bd312b4580f704dfe6a5aad140. 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/4rEe3htSUbJbO8kJePhHBx.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/4rEe3htSUbJbO8kJePhHBx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2985224003e0a3dbeae9b31715161c9753011fa5990779e9336ce2a236870d27. 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/0vsjS7GCEBUrzjEU0BEyTB.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/0vsjS7GCEBUrzjEU0BEyTB.
{"copyright_id":"0x2aedb840417dbb0ecd442edfc76d72e7704b043e43164a37630f902ce99c2573","isrc":"USUG12000383","name":"Trust Nobody (ft. Adam Levine)","registered_at":"2026-06-05T18:35:56Z","spotify_id":"76khb0YZNLUjwhsenaPkUi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aedb840417dbb0ecd442edfc76d72e7704b043e43164a37630f902ce99c2573. 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/76khb0YZNLUjwhsenaPkUi.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/76khb0YZNLUjwhsenaPkUi.
Super Songs of Big Mouth Vol. 2 (Music from the Netflix Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47c0e771b447fba72195d4d78269b83598b69b648059a68b1d01931e441eb80. 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/3x8mhRB8zcQ2DglYDRP9wT.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/3x8mhRB8zcQ2DglYDRP9wT.
{"copyright_id":"0x8bb85b44ec0ecae859a82179091b78daacf3a8c33d5506638a23eb6cfc02801d","isrc":"QZ8BZ2202462","name":"Dads Out the Ass","registered_at":"2026-06-19T10:11:33Z","spotify_id":"6NGUQO1P2HTqcDrxlWqhsi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb85b44ec0ecae859a82179091b78daacf3a8c33d5506638a23eb6cfc02801d. 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/6NGUQO1P2HTqcDrxlWqhsi.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/6NGUQO1P2HTqcDrxlWqhsi.
Girls Like You (Transcr. Camille Berthollet, Julie Berthollet)
Heard 'Em Say - Live At Abbey Road Studios
{"copyright_id":"0x7a120cf90e6a1f267a238026f1013db7b3943f5f2d98ab6c122ec6a37abb2156","isrc":"USUM70601941","name":"Heard 'Em Say - Live At Abbey Road Studios","registered_at":"2026-06-07T13:21:47Z","spotify_id":"3CVu4NHRrnMzTP6ybDbyrk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a120cf90e6a1f267a238026f1013db7b3943f5f2d98ab6c122ec6a37abb2156. 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/3CVu4NHRrnMzTP6ybDbyrk.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/3CVu4NHRrnMzTP6ybDbyrk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043b041c95b2e3c61e48ee9a8b6579a0633cb159baf06305b112d70eca51ed71. 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/2InNHqO69Nu6lH8169ncxR.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/2InNHqO69Nu6lH8169ncxR.
U.S.A. (United State Of Atlanta) (Chopped & Screwed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571fb64770330170b851550fc8558166909e1f57e761453135c64a3f48268348. 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/1ejtHfSXQwvaAU7F82FXww.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/1ejtHfSXQwvaAU7F82FXww.
{"copyright_id":"0x2aedb840417dbb0ecd442edfc76d72e7704b043e43164a37630f902ce99c2573","isrc":"USUG12000383","name":"Trust Nobody (ft. Adam Levine)","registered_at":"2026-06-05T18:35:56Z","spotify_id":"5BVVgL1FJ0wAEyNH0Mc8yX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aedb840417dbb0ecd442edfc76d72e7704b043e43164a37630f902ce99c2573. 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/5BVVgL1FJ0wAEyNH0Mc8yX.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/5BVVgL1FJ0wAEyNH0Mc8yX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c37a2a7f19b8f26ff54c3d280ab15960361a91b95123f26e39704c4ddae579. 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/4eAbsf15Xi5ItqJiTOVHKQ.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/4eAbsf15Xi5ItqJiTOVHKQ.