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 0x53f865275c2a07dbab67f6163d21a41c5140750d29aa5e8061db5d5d4526aa33. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b83cc5f-4acb-42e0-b306-bfb80aba5102.json and https://artists.proofprofile.net/proofs/artist/6b83cc5f-4acb-42e0-b306-bfb80aba5102.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xfba11264bc0dd12f3501811b60a7c6608663e0373b7eacaa260a4e9d7d8596b4","isrc":"USZXT2454115","name":"How You Feel (Ft. Leven Kali)","registered_at":"2026-06-01T07:21:37Z","spotify_id":"3Kwj07sN1wdzlRNMU8rNX0","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 0xfba11264bc0dd12f3501811b60a7c6608663e0373b7eacaa260a4e9d7d8596b4. 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/3Kwj07sN1wdzlRNMU8rNX0.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/3Kwj07sN1wdzlRNMU8rNX0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6051a75fe3a66d5e452b42f7e7e71ecd3390a27cfc7c6aeab7c2d3de3e72f8. 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/5zw1Yus60yIBjFkdS9Jpjj.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/5zw1Yus60yIBjFkdS9Jpjj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1788d30ae97b8660590ed9129e1816fa3a257858bb8c02fb24a553acc13c55c3. 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/1gyFBtAQVAK5T2YVPDh5AW.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/1gyFBtAQVAK5T2YVPDh5AW.
{"copyright_id":"0xfba11264bc0dd12f3501811b60a7c6608663e0373b7eacaa260a4e9d7d8596b4","isrc":"USZXT2454115","name":"How You Feel (ft Leven Kali)","registered_at":"2026-06-01T07:21:35Z","spotify_id":"5mg9TnSnfc89gcYStpOsVL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba11264bc0dd12f3501811b60a7c6608663e0373b7eacaa260a4e9d7d8596b4. 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/5mg9TnSnfc89gcYStpOsVL.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/5mg9TnSnfc89gcYStpOsVL.
Currency (Count On Me) (ft Cimafunk and PAMÉ)
{"copyright_id":"0x151ad0aef75a527406a8fb5f23a6bad82a14a7159c0204aa3545eb399d96a7f5","isrc":"USA2P2475425","name":"Currency (Count On Me) (ft Cimafunk and PAMÉ)","registered_at":"2026-06-01T10:21:19Z","spotify_id":"7HkSXmHPXtNtaaosJ4ejVS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151ad0aef75a527406a8fb5f23a6bad82a14a7159c0204aa3545eb399d96a7f5. 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/7HkSXmHPXtNtaaosJ4ejVS.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/7HkSXmHPXtNtaaosJ4ejVS.
Falling Feels Like Flying (ft Kabusa Oriental Choir)
{"copyright_id":"0x97f94ca62c41d1299072ca80b1b65e002ad7438bd22c7c3991d29673f385734f","isrc":"USA2P2475426","name":"Falling Feels Like Flying (ft Kabusa Oriental Choir)","registered_at":"2026-06-04T03:52:49Z","spotify_id":"4uwYYpAbDZ1SFRdde2hJUU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f94ca62c41d1299072ca80b1b65e002ad7438bd22c7c3991d29673f385734f. 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/4uwYYpAbDZ1SFRdde2hJUU.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/4uwYYpAbDZ1SFRdde2hJUU.
{"copyright_id":"0xe6187921b6cc12b581a76debbd9e0455b5b53acf4528d5aab48442198d1fd667","isrc":"USA2P2475427","name":"Don't Understand Ya (ft Tyler Daley)","registered_at":"2026-06-04T14:30:38Z","spotify_id":"7dLpweZrokpuZ301yGgZWd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6187921b6cc12b581a76debbd9e0455b5b53acf4528d5aab48442198d1fd667. 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/7dLpweZrokpuZ301yGgZWd.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/7dLpweZrokpuZ301yGgZWd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbb861ffd5544aa05b435fb708b4633b03068e12ebae77c2d30bb3cb1377056. 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/5KFdkSJNJVW1DjBK0i5ViB.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/5KFdkSJNJVW1DjBK0i5ViB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef243e436fe01bbe0aebe23ca4f5ae1421b1ee5be6b64a069c307a4a6a63bd95. 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/0b4dAhBJwYWS4Dj74DfICb.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/0b4dAhBJwYWS4Dj74DfICb.
Can’t Let It Go (ft Tyler Daley and 3DDY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ed6a99379f360597a5a19161da2ffc7d8556d42705d265d69b7d80279f9ea5. 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/1eva4m68m4L7j02xqQ2u8M.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/1eva4m68m4L7j02xqQ2u8M.
{"copyright_id":"0xae3597d55e8db1a586c2c2281bba2e08426f2d6396879a444f11b890b7dba946","isrc":"USA2P2475430","name":"Simple Rules (ft Kurtis Wells)","registered_at":"2026-06-04T11:04:44Z","spotify_id":"1UW8sPgNOx7Roe3oWzhiQK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3597d55e8db1a586c2c2281bba2e08426f2d6396879a444f11b890b7dba946. 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/1UW8sPgNOx7Roe3oWzhiQK.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/1UW8sPgNOx7Roe3oWzhiQK.
{"copyright_id":"0xb49f9832c2363431e44e98cc07c905555ce52abd73fc76520266ea49b7e821e6","isrc":"USA2P2475431","name":"Here For You (ft Leven Kali)","registered_at":"2026-06-05T05:14:10Z","spotify_id":"29cNmhZtIdGVJJNNGKrGLU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f9832c2363431e44e98cc07c905555ce52abd73fc76520266ea49b7e821e6. 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/29cNmhZtIdGVJJNNGKrGLU.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/29cNmhZtIdGVJJNNGKrGLU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90e41d854c17743164d3fec786b6e3a284de4e695971bd012c74d545b5911da. 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/1bFh5kNgM0Sqxk857wVAWW.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/1bFh5kNgM0Sqxk857wVAWW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3e105d733e3fc2eaa3c967e22ae4c7775c93fb258d102a326b3950c1b92717. 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/1BjeyNUO4D1nYdnkseSYGZ.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/1BjeyNUO4D1nYdnkseSYGZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a824fbcca2ac5cc8ad94c25df4e8de29de7b5354b2b1bf0b18ad1db6ed191f. 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/3UNfJQDOmCZkfkYsVy6rrU.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/3UNfJQDOmCZkfkYsVy6rrU.