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 0x7c7e8dddd7ad6a67a3d27864643edd28acfeb0e5823cd2ee4105cc55201c2e8e. 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/2b9c5c8c-c9ca-4390-81c9-8bc76ec0aa43.json and https://artists.proofprofile.net/proofs/artist/2b9c5c8c-c9ca-4390-81c9-8bc76ec0aa43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gotas de Chuva Na Minha Cuica (Raindrops Keep Fallin' on My Head)
Tudo Bem/ Na Baixa do Sapateiro - Single
Replay (O Meu Time e A Alegria Da Cidade)
Replay (O Meu Time É a Alegria da Cidade)
{"copyright_id":"0x5fcbb380219c4386b0d9bb116f55362c686bca630ecd5534c8db052c08b87efc","isrc":"BRAGL0300113","name":"Beleza Beleza Beleza","registered_at":"2026-06-19T15:53:36Z","spotify_id":"1kdFqXodmZsqn8H1Z0cD4H","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 0x5fcbb380219c4386b0d9bb116f55362c686bca630ecd5534c8db052c08b87efc. 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/1kdFqXodmZsqn8H1Z0cD4H.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/1kdFqXodmZsqn8H1Z0cD4H.
{"copyright_id":"0xb6294f38626eca0dcb8591bcdc75e9deb548bafca94a3da2586f84d5acac10cc","isrc":"BRAGL0300120","name":"Onde Anda o Meu Amor","registered_at":"2026-06-09T19:49:11Z","spotify_id":"6HvRCPMh4Q6g1MrSqXfT6c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6294f38626eca0dcb8591bcdc75e9deb548bafca94a3da2586f84d5acac10cc. 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/6HvRCPMh4Q6g1MrSqXfT6c.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/6HvRCPMh4Q6g1MrSqXfT6c.
{"copyright_id":"0x54ae1d8a8ac743b1883699eab41255c5a1abf22d5e89fd7c4f1c4cb4b9a745eb","isrc":"BRAGL0300115","name":"Coqueiro Verde","registered_at":"2026-06-06T18:52:10Z","spotify_id":"1m8ySK4uRZd7q2G6h44evx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ae1d8a8ac743b1883699eab41255c5a1abf22d5e89fd7c4f1c4cb4b9a745eb. 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/1m8ySK4uRZd7q2G6h44evx.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/1m8ySK4uRZd7q2G6h44evx.
{"copyright_id":"0xd1bb049d521fde2acbb079b1e23de5f7c8efb677fbf69a59763baea30b082d90","isrc":"BRAGL0300124","name":"De Hoje Não Passa","registered_at":"2026-06-25T11:03:09Z","spotify_id":"3BhQ9brSgGDSC77wn2bBjk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bb049d521fde2acbb079b1e23de5f7c8efb677fbf69a59763baea30b082d90. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BhQ9brSgGDSC77wn2bBjk.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/3BhQ9brSgGDSC77wn2bBjk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bb6a573aaf3ef2a2132ad5c52567fefdb96c1628c9c70823638e6c3036cd1f. 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/4SzV9H7A8PT9XhtJ8JoiDd.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/4SzV9H7A8PT9XhtJ8JoiDd.
{"copyright_id":"0xe8e13e63372a7f8aece0bd9d38c1b072081f6dd98b9db5f729b07c3e4f4cc42d","isrc":"BRAGL0300118","name":"Lírio Para Xangô","registered_at":"2026-06-18T04:42:31Z","spotify_id":"7orfMa4YZEVnpIxbAxgiil","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e13e63372a7f8aece0bd9d38c1b072081f6dd98b9db5f729b07c3e4f4cc42d. 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/7orfMa4YZEVnpIxbAxgiil.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/7orfMa4YZEVnpIxbAxgiil.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6af1736e8a141957f98c3de4bcccb43d07f873f962d5d3afe5841fec61017ab. 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/7aunpZfrUqErv8lsCaZjLu.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/7aunpZfrUqErv8lsCaZjLu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1821e776c58ce8964a0f9e1ca890e92d45e197ea1b9085e41510812a85ef8f. 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/3qrsRhxO3HZYxxY853YQNe.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/3qrsRhxO3HZYxxY853YQNe.
{"copyright_id":"0xc572702e8576aa364d2af382645c7ca2720852b7b7b5d6269c346a7aba22ded8","isrc":"BX7MG2300299","name":"Os Orixás - Banana Gold Mix","registered_at":"2026-06-23T18:22:49Z","spotify_id":"3FXqNeGWwIMOnx0MPJddYK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc572702e8576aa364d2af382645c7ca2720852b7b7b5d6269c346a7aba22ded8. 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/3FXqNeGWwIMOnx0MPJddYK.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/3FXqNeGWwIMOnx0MPJddYK.
Diamantes, Lágrimas e Rostos para Esquecer
{"copyright_id":"0x7ef6b51e2811449b12c27c8b43c6ecdc04403cf5f69c379188a1a22d0aa8c010","isrc":"BXA5K2500003","name":"Não Adianta Chorar","registered_at":"2026-06-01T08:24:31Z","spotify_id":"6upD8qnsJjNFj5bLwoN6aS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef6b51e2811449b12c27c8b43c6ecdc04403cf5f69c379188a1a22d0aa8c010. 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/6upD8qnsJjNFj5bLwoN6aS.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/6upD8qnsJjNFj5bLwoN6aS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16c663a28ed690d9cab6c4a2357a0d8eb78e543997b77d80d3ac1c50677770c. 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/5qpvFRFaq6c9pIVcVCpkIh.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/5qpvFRFaq6c9pIVcVCpkIh.
{"copyright_id":"0xc3e802c5ec40d6f926ff1b65bc0e7e398f7d81e28fcb446d645ba65779b09b3a","isrc":"GBCLQ1800265","name":"Não Adianta","registered_at":"2026-06-08T01:48:26Z","spotify_id":"6r3OpZstuAg72VSty3BxLT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e802c5ec40d6f926ff1b65bc0e7e398f7d81e28fcb446d645ba65779b09b3a. 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/6r3OpZstuAg72VSty3BxLT.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/6r3OpZstuAg72VSty3BxLT.
{"copyright_id":"0xb4fedf94b2dce4c23a4e79547e80adf1ecf104abedb59be5fcb3963b723cd635","isrc":"BRED60400015","name":"Vai Levando","registered_at":"2026-06-09T06:36:17Z","spotify_id":"7ne60N1T3Xagff67367tuY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fedf94b2dce4c23a4e79547e80adf1ecf104abedb59be5fcb3963b723cd635. 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/7ne60N1T3Xagff67367tuY.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/7ne60N1T3Xagff67367tuY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9956ac206dee95af7645e1e71dc2657c40f8948bea398a3a861d79d957e8eb. 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/15JmnGtCdsrlohbj6FJvGD.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/15JmnGtCdsrlohbj6FJvGD.