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 0xf95d09bc98e5219b530724529cb6b492dd4a3b8697d182b1aea773a1b2ef04c6. 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/335a735e-5200-4708-b32e-a155ff743bd2.json and https://artists.proofprofile.net/proofs/artist/335a735e-5200-4708-b32e-a155ff743bd2.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 0x137e57383e9e7159f25078697a295100364cb95517f973f7292788a6b5fdc4c8. 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/4tBkqcQve3acuHIdXZJaGp.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/4tBkqcQve3acuHIdXZJaGp.
{"copyright_id":"0x1974f0aa164042cc15058a71208ece9fea6c52f21b3d2d61763bedc77f7f6c2e","isrc":"BR4TF2300369","name":"Sete Vezes Mais - Ao Vivo","registered_at":"2026-06-19T16:43:39Z","spotify_id":"3WFCtua1KS7tSw3gRywPHs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1974f0aa164042cc15058a71208ece9fea6c52f21b3d2d61763bedc77f7f6c2e. 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/3WFCtua1KS7tSw3gRywPHs.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/3WFCtua1KS7tSw3gRywPHs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0de36fd1c176105deaf4e28723d9f6158462a01ee42c06676dc6ff87f0b8f01. 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/3H2GHOUKmB065v068SiH11.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/3H2GHOUKmB065v068SiH11.
{"copyright_id":"0xb598ddaf91a9e86c5ba0679723d172bbf24bf81ea00b60472a9177bff7221eae","isrc":"BR4TF2300367","name":"Coração Disposto - Ao Vivo","registered_at":"2026-06-19T16:43:31Z","spotify_id":"4OHePRXAJmqmjruIkohFHq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb598ddaf91a9e86c5ba0679723d172bbf24bf81ea00b60472a9177bff7221eae. 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/4OHePRXAJmqmjruIkohFHq.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/4OHePRXAJmqmjruIkohFHq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f277154edb577a9280f7ccc963fd673801da8747113a7767f755b5925b3b6e1. 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/4DjTueeTamCJVwNkDh32eN.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/4DjTueeTamCJVwNkDh32eN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7502d38cdf175d584385d5eae48cbacf5b7ae3b806271acb4857d2aeb9ca563f. 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/5YL40tLls4r02P8T7S8Suz.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/5YL40tLls4r02P8T7S8Suz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c1628f92618772bbedab50ca58d82147f1e18348973837e854da7ec8010216. 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/2SDt9vNMnpVDRzKs6Jo5ws.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/2SDt9vNMnpVDRzKs6Jo5ws.
{"copyright_id":"0x62cc5cb31d219a0296faf59641e99e4a96f1136ed63650785fdc0ac47f5861ef","isrc":"BR4TF2300373","name":"Bendito Serei - Ao Vivo","registered_at":"2026-06-10T21:17:27Z","spotify_id":"6jjKTG84QqDQCoX9xMhbEH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cc5cb31d219a0296faf59641e99e4a96f1136ed63650785fdc0ac47f5861ef. 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/6jjKTG84QqDQCoX9xMhbEH.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/6jjKTG84QqDQCoX9xMhbEH.
{"copyright_id":"0x6de0774a41a649b234c1d7cbacd63312a5335809af5c8cda285e89a02ca867d1","isrc":"BR4TF2300379","name":"Minh’alma Te Deseja - Ao Vivo","registered_at":"2026-06-22T08:10:34Z","spotify_id":"3iQJFkAe0ng9qfHr00lTmt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de0774a41a649b234c1d7cbacd63312a5335809af5c8cda285e89a02ca867d1. 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/3iQJFkAe0ng9qfHr00lTmt.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/3iQJFkAe0ng9qfHr00lTmt.
{"copyright_id":"0x87603e0815d7e07f50e3e1b46d2b81e17e0b64f93d1944acae7cd6643d3cd474","isrc":"BR4TF2300381","name":"Sacia - Me - Ao Vivo","registered_at":"2026-06-25T12:31:08Z","spotify_id":"0GAMHutZSAxqvkdPUYKtS0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87603e0815d7e07f50e3e1b46d2b81e17e0b64f93d1944acae7cd6643d3cd474. 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/0GAMHutZSAxqvkdPUYKtS0.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/0GAMHutZSAxqvkdPUYKtS0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f9abfc3f8114dba0a6e06e78d196a0839344f91002346736fe31461777e56. 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/30O7ISFzJhoxdiqfIUl7Jh.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/30O7ISFzJhoxdiqfIUl7Jh.
{"copyright_id":"0x9528ccaa323dc7dc26da74880668ff9ef8edd6824175d7f5963250b471bd2111","isrc":"BR4TF2300383","name":"Serás Sempre Deus - Ao Vivo","registered_at":"2026-06-20T11:35:42Z","spotify_id":"2jXBlDcMEWokCC5Byo2EVD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9528ccaa323dc7dc26da74880668ff9ef8edd6824175d7f5963250b471bd2111. 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/2jXBlDcMEWokCC5Byo2EVD.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/2jXBlDcMEWokCC5Byo2EVD.
{"copyright_id":"0x341d56b5fa1bd9288fae42c345a062dfea3d375518efa71301e5b2302f24dbeb","isrc":"BRRGE1507336","name":"Meu Abrigo - Ao Vivo","registered_at":"2026-06-04T12:35:23Z","spotify_id":"0AbrUVqt0ZhiV3wN5I4rh8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341d56b5fa1bd9288fae42c345a062dfea3d375518efa71301e5b2302f24dbeb. 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/0AbrUVqt0ZhiV3wN5I4rh8.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/0AbrUVqt0ZhiV3wN5I4rh8.
{"copyright_id":"0x9c6276fd79adf1662ba674fce1d287240653072802d0ec1cf3d95d35ea161aec","isrc":"BRRGE1507334","name":"Meu Destino É a Rocha - Ao Vivo","registered_at":"2026-06-06T12:36:33Z","spotify_id":"408lRiY6RKGENxBiA1NgIG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6276fd79adf1662ba674fce1d287240653072802d0ec1cf3d95d35ea161aec. 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/408lRiY6RKGENxBiA1NgIG.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/408lRiY6RKGENxBiA1NgIG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45fd11b29106c296550afc59027fe45f2be45da47a839cab25e208bdd9f730c. 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/2dVVRQwMXXT22Ny4no9wfv.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/2dVVRQwMXXT22Ny4no9wfv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe9069d8172c3c7ca7c7edcfe3374721fd71943000abebbdd33d0e34779a054. 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/7qLcgNlX6JSKsfu8iVpu9H.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/7qLcgNlX6JSKsfu8iVpu9H.
{"copyright_id":"0x3653747b613842bffd48c34a18e1c46f1c8e393ce4e1c960e17e317561cb7a8c","isrc":"BRRGE1507335","name":"Teu Amor Não Falha - Ao Vivo","registered_at":"2026-06-11T16:59:18Z","spotify_id":"7AqZvH6lvErChtpGVPYLhF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3653747b613842bffd48c34a18e1c46f1c8e393ce4e1c960e17e317561cb7a8c. 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/7AqZvH6lvErChtpGVPYLhF.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/7AqZvH6lvErChtpGVPYLhF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf2d3b565ae790f16c5c417f4f9aca1bbd1944dac53143f9816472450792583. 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/4rP872OdbK6nQndBAKj3ft.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/4rP872OdbK6nQndBAKj3ft.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa252941459a2af45f51f5010b963944ac80ef07804be74d4b61884267c4e337f. 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/73oQoEDRLmyCDow54BKsaw.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/73oQoEDRLmyCDow54BKsaw.
{"copyright_id":"0x79694addb2ef4d08c80cb354a0b51958be3212853880d225a0d359fa8afcb9c4","isrc":"BRRGE1902835","name":"Te Louvarei - Ao Vivo","registered_at":"2026-06-04T09:23:54Z","spotify_id":"6ovN8v1Q6xTeGHVFDRItRM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79694addb2ef4d08c80cb354a0b51958be3212853880d225a0d359fa8afcb9c4. 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/6ovN8v1Q6xTeGHVFDRItRM.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/6ovN8v1Q6xTeGHVFDRItRM.