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 0xb0f98831cf072293daa96991acf78b81fa3bf1301f2816a81d723708e744756f. 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/7a875e85-25e2-4dca-8095-21c32106b9ad.json and https://artists.proofprofile.net/proofs/artist/7a875e85-25e2-4dca-8095-21c32106b9ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xbba4296fc2b6d05ace45932b200ead4f3ecec49db5f3e8e6c7c95378944c0b40","isrc":"BROOB2200576","name":"Se Te Agarro Com Outro Te Mato - Remix","registered_at":"2026-06-29T05:59:49Z","spotify_id":"5jkCMeAqNcy1rsa6jZ2n4I","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 0xbba4296fc2b6d05ace45932b200ead4f3ecec49db5f3e8e6c7c95378944c0b40. 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/5jkCMeAqNcy1rsa6jZ2n4I.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/5jkCMeAqNcy1rsa6jZ2n4I.
Meu Sangue Ferve por Você (Melody Lady) (Melancolie) - Remix
Cuando Calienta El Sol / Piel Canela / Perfídia - Medley
El Cumbanchero / Corazon De Melon / Ay Cosita Linda - Medley
Rico Vacilon / Cachito (Cha Cha Cha) / El Bodeguero
Cuando Calienta El Sol / Piel Canela / Perfídia
El Cumbanchero / Corazon De Melon / Ay Cosita Linda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f505b5940f53475de2153641b59fb15cd46d5bb1ce7a1d014eaa00110674fa. 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/2ttJ1uMSV7k7ir5EiqdjDB.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/2ttJ1uMSV7k7ir5EiqdjDB.
{"copyright_id":"0x1f0df477be56d68b51a79c51d15dd39f7e16afcd8898a08ea1372bbabca64350","isrc":"BRBQN2400007","name":"Chove Chuva","registered_at":"2026-06-18T11:26:55Z","spotify_id":"0JTFuSqe8CfS5brzBLvUrt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0df477be56d68b51a79c51d15dd39f7e16afcd8898a08ea1372bbabca64350. 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/0JTFuSqe8CfS5brzBLvUrt.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/0JTFuSqe8CfS5brzBLvUrt.
{"copyright_id":"0x1f0df477be56d68b51a79c51d15dd39f7e16afcd8898a08ea1372bbabca64350","isrc":"BRBQN2400007","name":"Chove Chuva (feat. Sidney Magal)","registered_at":"2026-06-18T11:26:55Z","spotify_id":"4CpfzjXY0WQ8CfQYxRctnF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0df477be56d68b51a79c51d15dd39f7e16afcd8898a08ea1372bbabca64350. 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/4CpfzjXY0WQ8CfQYxRctnF.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/4CpfzjXY0WQ8CfQYxRctnF.
{"copyright_id":"0xd1a3e5e4c6ffd072f975350667ed34f3a6b51206deb093f747bc662c3f4d3836","isrc":"BRMCA7800056","name":"Sandra Rosa Madalena \"A Cigana\"","registered_at":"2026-06-25T17:53:09Z","spotify_id":"2Lz7Gsq17in7wz6CLLfPB3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a3e5e4c6ffd072f975350667ed34f3a6b51206deb093f747bc662c3f4d3836. 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/2Lz7Gsq17in7wz6CLLfPB3.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/2Lz7Gsq17in7wz6CLLfPB3.
{"copyright_id":"0xf25e00add30ca90f21b02fbbeab555f205db6a760a6320682c07a1b710494894","isrc":"BRMCA7700101","name":"Meu Sangue Ferve Por Você","registered_at":"2026-06-06T16:47:28Z","spotify_id":"7DFmmRFl6ms2E9FNCVyM0T","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25e00add30ca90f21b02fbbeab555f205db6a760a6320682c07a1b710494894. 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/7DFmmRFl6ms2E9FNCVyM0T.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/7DFmmRFl6ms2E9FNCVyM0T.
{"copyright_id":"0x536a1e30f50d8ca5f9521a1d58cf9abbca5cba704bd1f4a2394bdc3e6ef1ccfc","isrc":"BXZFL2000035","name":"Vou pra Cima","registered_at":"2026-06-05T21:46:34Z","spotify_id":"3YbzkFqF7ZwFDTrvEAGYJ0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536a1e30f50d8ca5f9521a1d58cf9abbca5cba704bd1f4a2394bdc3e6ef1ccfc. 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/3YbzkFqF7ZwFDTrvEAGYJ0.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/3YbzkFqF7ZwFDTrvEAGYJ0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ff85d9813ca0bcb1e80d3ef02272d2f5ecdbca85240998150208a53fd43da0. 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/5fa1SdjMMLRbR9U2YO1jff.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/5fa1SdjMMLRbR9U2YO1jff.