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 0xe0ec610f1aee1bb9ecb82fea6a37cf0f9abc2eee1b4a9c1a304c039fc931c2cc. 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/2e68a791-b429-4ca6-aa37-1dc5f914f382.json and https://artists.proofprofile.net/proofs/artist/2e68a791-b429-4ca6-aa37-1dc5f914f382.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 0x263eeac46727f100da30e3b9f66a5de204d610d83220c51df112df917f812655. 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/4f0aDk7HX37SfzerfznYlr.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/4f0aDk7HX37SfzerfznYlr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b70c9cb178a07c385384525e8b7d7f9b2c75598b00fd4313b68f5a3655aa313. 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/2tDdrLj5lKwEhjgRDSylFQ.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/2tDdrLj5lKwEhjgRDSylFQ.
{"copyright_id":"0x2aad7e2a9d4674db3dd7d90f9ff843a30bd60fe0851bbc4252e516c9224c6149","isrc":"BCDE52100012","name":"Bateu Na Trave - Ao Vivo","registered_at":"2026-06-06T16:16:19Z","spotify_id":"1MI1hvXqVKk2HaChYwssJ9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aad7e2a9d4674db3dd7d90f9ff843a30bd60fe0851bbc4252e516c9224c6149. 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/1MI1hvXqVKk2HaChYwssJ9.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/1MI1hvXqVKk2HaChYwssJ9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bea913984c92cd08bfe3697000b90a150bfc11fad7f493adc4a9745f49db5a. 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/0krjehV1YkB89YPa7t35If.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/0krjehV1YkB89YPa7t35If.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bea913984c92cd08bfe3697000b90a150bfc11fad7f493adc4a9745f49db5a. 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/16M7tHZdFBz2wZ4R9p3KUI.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/16M7tHZdFBz2wZ4R9p3KUI.
{"copyright_id":"0x38af27bc89ae115bd91ad397b21e77612e29c2569157357aed35de4a33712ccc","isrc":"BXYNY2000002","name":"Hoje É Nosso Dia","registered_at":"2026-06-17T03:30:41Z","spotify_id":"2bHfKNxNlrhCbDEXezglK3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38af27bc89ae115bd91ad397b21e77612e29c2569157357aed35de4a33712ccc. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:28:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2bHfKNxNlrhCbDEXezglK3.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/2bHfKNxNlrhCbDEXezglK3.
{"copyright_id":"0xdd480fb3cd690c9a07dacba75b5ab303e6e18054cce7b25d1c17ece0db404a7a","isrc":"BCR6R2100016","name":"Hoje É Nosso Dia - Remix","registered_at":"2026-06-06T16:18:24Z","spotify_id":"4KSDQI5fW4vCaXXXghYyea","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd480fb3cd690c9a07dacba75b5ab303e6e18054cce7b25d1c17ece0db404a7a. 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/4KSDQI5fW4vCaXXXghYyea.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/4KSDQI5fW4vCaXXXghYyea.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3562110a9238653188dd3460a8001a814889641f02c35c81c678a4382a2a96f3. 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/5G2BT0ajtZQNy6FMDA5u8P.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/5G2BT0ajtZQNy6FMDA5u8P.
{"copyright_id":"0x712759770f28e4f3e527ae6cdb70ec66308da444eb2ba3d222f1e5cb22deed06","isrc":"BK4T62400009","name":"Saudade Que Fala - Ao Vivo","registered_at":"2026-06-05T11:48:22Z","spotify_id":"272LsFtYUTMuSeOwdkFayp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712759770f28e4f3e527ae6cdb70ec66308da444eb2ba3d222f1e5cb22deed06. 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/272LsFtYUTMuSeOwdkFayp.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/272LsFtYUTMuSeOwdkFayp.
{"copyright_id":"0x0c170de0e65ff8f8ea4bf06ed2830eda808bab7cf99f4ca8d726798751ba2062","isrc":"QZTPX2486526","name":"Saudade Que Fala","registered_at":"2026-06-19T08:06:24Z","spotify_id":"69v8iCHceSPXgteVZ3tScS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c170de0e65ff8f8ea4bf06ed2830eda808bab7cf99f4ca8d726798751ba2062. 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/69v8iCHceSPXgteVZ3tScS.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/69v8iCHceSPXgteVZ3tScS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457889ae8ff68f1762606609652e7371b91be35f77bda2f4f557f829e8b14269. 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/2RgsQZHtcQVvItkYMhJwnh.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/2RgsQZHtcQVvItkYMhJwnh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457889ae8ff68f1762606609652e7371b91be35f77bda2f4f557f829e8b14269. 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/5G14doWE8UZLFw9nlcNDm8.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/5G14doWE8UZLFw9nlcNDm8.
Amanhã / Loucura do Seu Coração - Ao Vivo
Sorriso Eu Gosto No Pagode - Parte 2 (Ao Vivo)
{"copyright_id":"0xb8c18c956904790211fe53c19247ffab8821250aadb1df11c1d4eb999efc4a82","isrc":"BXS8V2300021","name":"Amanhã / Loucura do Seu Coração - Ao Vivo","registered_at":"2026-06-01T17:09:07Z","spotify_id":"6ONv978PnRhrb1qIeOi9iW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c18c956904790211fe53c19247ffab8821250aadb1df11c1d4eb999efc4a82. 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/6ONv978PnRhrb1qIeOi9iW.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/6ONv978PnRhrb1qIeOi9iW.
{"copyright_id":"0x7ff4ae294740edeb7c58d067a5693e7798c603cd27aa4d7e4744d2333fbac176","isrc":"BXS8V2300023","name":"O Que Tinha Que Dar - Ao Vivo","registered_at":"2026-06-04T09:13:54Z","spotify_id":"11W4TkBBQbYtTJOPQUg2RE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff4ae294740edeb7c58d067a5693e7798c603cd27aa4d7e4744d2333fbac176. 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/11W4TkBBQbYtTJOPQUg2RE.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/11W4TkBBQbYtTJOPQUg2RE.
{"copyright_id":"0xb8c18c956904790211fe53c19247ffab8821250aadb1df11c1d4eb999efc4a82","isrc":"BXS8V2300021","name":"Amanhã / Loucura do Seu Coração - Ao Vivo","registered_at":"2026-06-03T03:28:31Z","spotify_id":"1Jup1Y32zTXF66dUZlUJNS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c18c956904790211fe53c19247ffab8821250aadb1df11c1d4eb999efc4a82. 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/1Jup1Y32zTXF66dUZlUJNS.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/1Jup1Y32zTXF66dUZlUJNS.
{"copyright_id":"0x7ff4ae294740edeb7c58d067a5693e7798c603cd27aa4d7e4744d2333fbac176","isrc":"BXS8V2300023","name":"O Que Tinha Que Dar - Ao Vivo","registered_at":"2026-06-04T09:13:54Z","spotify_id":"4JnUd6Fh1fkrgrFgM3cCxi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff4ae294740edeb7c58d067a5693e7798c603cd27aa4d7e4744d2333fbac176. 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/4JnUd6Fh1fkrgrFgM3cCxi.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/4JnUd6Fh1fkrgrFgM3cCxi.
Sertanejo - Forró - Piseiro 2025 (Atualizado)
Ontem Eu Tinha Certeza (Hoje Eu Tenho Mais)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241f2e08e7d71c64d2a9fc322236836f76dc46eb678066f5403df95989e9ca0f. 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/5SADxMQyhgSl5DR3sJZmav.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/5SADxMQyhgSl5DR3sJZmav.