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 0xe7ed6e6c1ea5383a788e47d807d13da127341f453928169afc7835cd34cd0b45. 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/4acf9ac3-134a-4bb0-92bd-71a735d13abc.json and https://artists.proofprofile.net/proofs/artist/4acf9ac3-134a-4bb0-92bd-71a735d13abc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x54aa14aa4a5d32f1d8b362ba4e255183cb092e2b9e86861d6f1e56db1b34b355","isrc":"BXZSC2400002","name":"BANG BANG","registered_at":"2026-06-07T13:39:10Z","spotify_id":"7jymMgmShNaNxg1xHENKse","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 0x54aa14aa4a5d32f1d8b362ba4e255183cb092e2b9e86861d6f1e56db1b34b355. 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/7jymMgmShNaNxg1xHENKse.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/7jymMgmShNaNxg1xHENKse.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e02aac46ea52763d1632b0f28934eada04f1b59643a6787561a5ab27b7b880. 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/63FARU74WtgIfSG6CKW7CL.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/63FARU74WtgIfSG6CKW7CL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9de64206e5a79e5a6a8021005f5ca7d878949f1d4d7e1394918a4ce89467373. 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/7njdyjtubdX0BhmCYB1hfW.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/7njdyjtubdX0BhmCYB1hfW.
{"copyright_id":"0x39215af82cf3c02c7323bc752c74f0561dd242b99e2194be643cddf4a26f3350","isrc":"BXZSC2400008","name":"Cyberbullying (Interlúdio)","registered_at":"2026-06-19T12:42:08Z","spotify_id":"7vmV8K7ezH0hiM9R7vGnq5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39215af82cf3c02c7323bc752c74f0561dd242b99e2194be643cddf4a26f3350. 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/7vmV8K7ezH0hiM9R7vGnq5.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/7vmV8K7ezH0hiM9R7vGnq5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd2023e3dde5b119ba2c8f67c173c2e85035d70a28602f5d684b6b65da070e1. 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/2nB4nMit4x0LK6rQMHIUia.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/2nB4nMit4x0LK6rQMHIUia.
{"copyright_id":"0x4d77fa50fe23b1e534859075cd2d9fa0dcfc0fab6b7be43d28e33d807c6facb4","isrc":"BXZSC2400014","name":"Coisas Que Se Resolvem na Porrada","registered_at":"2026-06-07T19:55:48Z","spotify_id":"2JiTGFQH9zb4fnCYQPyjwt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d77fa50fe23b1e534859075cd2d9fa0dcfc0fab6b7be43d28e33d807c6facb4. 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/2JiTGFQH9zb4fnCYQPyjwt.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/2JiTGFQH9zb4fnCYQPyjwt.
{"copyright_id":"0xbcf39fc1a973df5629140b23e11fe857dae21cb97a80b35e244f2fcfa4f4a292","isrc":"BXZSC2400012","name":"Filipe Ret Freestyle","registered_at":"2026-06-05T16:48:24Z","spotify_id":"6pgfR3PbRPj2GFgKnClEOf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf39fc1a973df5629140b23e11fe857dae21cb97a80b35e244f2fcfa4f4a292. 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/6pgfR3PbRPj2GFgKnClEOf.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/6pgfR3PbRPj2GFgKnClEOf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d5475aab0e8b7f5b507bf682c3b000b055f4e23075d42bd27c0ee9f084edfa. 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/7aqI7ALSi75LyHPcbBsAnj.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/7aqI7ALSi75LyHPcbBsAnj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d594b7d355f6f569675a493579636cd43ac958b28b6ea9c62908b9711501c5. 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/11oA2DTvomyhzDKUeu1AaK.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/11oA2DTvomyhzDKUeu1AaK.
{"copyright_id":"0x31f0597bf0c1e80caee431f1ea025a76b643df2b2ebc826a6c434505a2748ef1","isrc":"BXZSC2400004","name":"Clube da Luta","registered_at":"2026-06-08T20:16:58Z","spotify_id":"790ZNsslMEShnScmM3A9XQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f0597bf0c1e80caee431f1ea025a76b643df2b2ebc826a6c434505a2748ef1. 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/790ZNsslMEShnScmM3A9XQ.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/790ZNsslMEShnScmM3A9XQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd7f194f0bd4a2c3aee526128a7c05f16e6209093faf33a1ab24d5b6b40c7c6. 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/4BVSfKW6sm09Bo0Pf3TSR2.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/4BVSfKW6sm09Bo0Pf3TSR2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fd7ece114d90ac2fa2707c2a6e575936cde5c24df4220a17724881ab31305f. 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/7tOnR9C4BSirSpiWWsSqjv.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/7tOnR9C4BSirSpiWWsSqjv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94272aa2bec2ff94b7bd059b35a6ac9aa70dce8efec2df051fe2aa70063c502. 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/1CdB68W63KpoNn3f5228Sy.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/1CdB68W63KpoNn3f5228Sy.
{"copyright_id":"0xcc05c1c3749d0de90746993ace0de035e81f0f04cfcf1211279ac79e64f6b175","isrc":"BXZSC2400010","name":"Lado A x Lado B (Interlúdio)","registered_at":"2026-06-23T06:26:41Z","spotify_id":"3dRf7G0QTzfKaVvFU1E0PP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc05c1c3749d0de90746993ace0de035e81f0f04cfcf1211279ac79e64f6b175. 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/3dRf7G0QTzfKaVvFU1E0PP.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/3dRf7G0QTzfKaVvFU1E0PP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f03f0d5108cc57b43bf4ea6971fe17c31d855f28c2c0beaca1b1b83e75da6ec. 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/4hzrKteHAnFWKxls0DPmtG.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/4hzrKteHAnFWKxls0DPmtG.
{"copyright_id":"0xf754ec259e2648a36b25d6423c95e70c58bbefdb86b427ee98a19be6709b5cc1","isrc":"BK4442400164","name":"Noite de Crime","registered_at":"2026-06-06T02:30:50Z","spotify_id":"0FrSw9xAlHDFmQjZRNrdfV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf754ec259e2648a36b25d6423c95e70c58bbefdb86b427ee98a19be6709b5cc1. 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/0FrSw9xAlHDFmQjZRNrdfV.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/0FrSw9xAlHDFmQjZRNrdfV.
Escuro Brilhante, Último Dia no Orfanato Tia Guga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a8840484b490305c0d828af83e7f32d9b1e7a87c91cfb40c61b42160a988d2. 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/7z7lgmegBbNoxCu8hdgcNL.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/7z7lgmegBbNoxCu8hdgcNL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755f4758120f5bb661932a373bff725bafcf7a7714e8713e4c430e5fde0882f5. 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/2MBNzXijc1eY9ThCulcA4r.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/2MBNzXijc1eY9ThCulcA4r.
{"copyright_id":"0x5d6fa633c108cb217a8868f4faf58ad0fec72ecb29d4b0d1f4e5c6f8b831063a","isrc":"BXIV82377744","name":"Vida Bandida 1","registered_at":"2026-06-11T10:07:35Z","spotify_id":"4ipXdIRTqRRCVE7NoMbiVq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6fa633c108cb217a8868f4faf58ad0fec72ecb29d4b0d1f4e5c6f8b831063a. 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/4ipXdIRTqRRCVE7NoMbiVq.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/4ipXdIRTqRRCVE7NoMbiVq.
{"copyright_id":"0x2aac67cdef164bbb192fa81629956e3fe34a9cbb06edf64c75dda6d26f7526e4","isrc":"BXIV82337915","name":"Nós Fecha Nessa Porra","registered_at":"2026-06-19T11:18:12Z","spotify_id":"0z0u7CrS7XRJQHXq0Moo4h","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aac67cdef164bbb192fa81629956e3fe34a9cbb06edf64c75dda6d26f7526e4. 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/0z0u7CrS7XRJQHXq0Moo4h.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/0z0u7CrS7XRJQHXq0Moo4h.
{"copyright_id":"0x2b6e45c3e20f86e1c9aa9da047d4d4285d1cdb7d9e1a50cef8bb68b47b90d638","isrc":"BXIV82343468","name":"Os Problemáticos","registered_at":"2026-06-25T20:00:58Z","spotify_id":"4U29JDjknftrC17x5hYwVk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6e45c3e20f86e1c9aa9da047d4d4285d1cdb7d9e1a50cef8bb68b47b90d638. 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/4U29JDjknftrC17x5hYwVk.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/4U29JDjknftrC17x5hYwVk.