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 0xf586d842d44b594692888e537e45a2352fba0f9285bed01765d9463031d999f3. 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/7b9f3ee9-fe3d-4903-bcd0-82278ea3bcce.json and https://artists.proofprofile.net/proofs/artist/7b9f3ee9-fe3d-4903-bcd0-82278ea3bcce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xaf6d0165db328ca93272259cba56233369124b06f17e7f453a4b2f269c9d5027","isrc":"BX5EU2300034","name":"Faz um Vuk Vuk (Teto Espelhado)","registered_at":"2026-06-01T06:55:26Z","spotify_id":"64CovjRwInpOJW4PiGMprY","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 0xaf6d0165db328ca93272259cba56233369124b06f17e7f453a4b2f269c9d5027. 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/64CovjRwInpOJW4PiGMprY.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/64CovjRwInpOJW4PiGMprY.
{"copyright_id":"0x2a468e45c26825b2d7dbd96c6abf894387323c0c2e913add3b0d250f98fa96b4","isrc":"QZK6P2405044","name":"MTG Vem Cá Pra Treta","registered_at":"2026-06-07T13:41:05Z","spotify_id":"70XqgVCFJSerFS4u7Iykqo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a468e45c26825b2d7dbd96c6abf894387323c0c2e913add3b0d250f98fa96b4. 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/70XqgVCFJSerFS4u7Iykqo.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/70XqgVCFJSerFS4u7Iykqo.
{"copyright_id":"0x3ca464b0e60ec60e42cfc19ef4f019537c566ae1cdfcc937c68dea8f1b8aa6a9","isrc":"QZTAU2430749","name":"MTG QUANDO LEMBRA DA GENTE - VERSÃO BH","registered_at":"2026-06-23T06:44:44Z","spotify_id":"4jg7cSmbAxnIIp8vohtWOC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca464b0e60ec60e42cfc19ef4f019537c566ae1cdfcc937c68dea8f1b8aa6a9. 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/4jg7cSmbAxnIIp8vohtWOC.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/4jg7cSmbAxnIIp8vohtWOC.
{"copyright_id":"0xa9a4252f39b8d03581e1083937bafed1f681b58ef482f1d1bc1d8ecd2f506b12","isrc":"QZHN42457382","name":"Arsenal De Fuzil Novo - Versão Bh","registered_at":"2026-06-11T10:36:39Z","spotify_id":"3zY2vtq3kmxT3epQRhC7A4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a4252f39b8d03581e1083937bafed1f681b58ef482f1d1bc1d8ecd2f506b12. 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/3zY2vtq3kmxT3epQRhC7A4.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/3zY2vtq3kmxT3epQRhC7A4.
{"copyright_id":"0x922fafaf590dbd7d562eb2d1012eecd5e6d2a12c1fe2b8429e4188d4092f5ec7","isrc":"QZFZ32465660","name":"Se Prepara Pra Senta","registered_at":"2026-06-06T17:19:47Z","spotify_id":"1oJ69P0dfDC5Fq4BXbWDcY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922fafaf590dbd7d562eb2d1012eecd5e6d2a12c1fe2b8429e4188d4092f5ec7. 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/1oJ69P0dfDC5Fq4BXbWDcY.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/1oJ69P0dfDC5Fq4BXbWDcY.
MTG YOU POWER x TOMA SOCADA DE 4 (Versão Bh)
MTG YOU POWER x TOMA SOCADA DE 4 - Versão Bh
{"copyright_id":"0x4ea4285a854fc71dd5a45f3ceef27614cdf9574b92da91271fc7fdb654309403","isrc":"QZTAS2430198","name":"MTG YOU POWER x TOMA SOCADA DE 4 - Versão Bh","registered_at":"2026-06-27T02:49:18Z","spotify_id":"5dfZytDyyqFD22t0NSIHp9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea4285a854fc71dd5a45f3ceef27614cdf9574b92da91271fc7fdb654309403. 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/5dfZytDyyqFD22t0NSIHp9.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/5dfZytDyyqFD22t0NSIHp9.
{"copyright_id":"0xa2f0411c1379b27e39cb4ed7eec5d82a4246911ceb07da07287b6abbe984ce15","isrc":"QZTAY2486119","name":"MTG CHIHIRO - Versão Bh funk","registered_at":"2026-06-04T13:21:10Z","spotify_id":"6MbIUqzyxESePphZXIFSHE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f0411c1379b27e39cb4ed7eec5d82a4246911ceb07da07287b6abbe984ce15. 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/6MbIUqzyxESePphZXIFSHE.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/6MbIUqzyxESePphZXIFSHE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83222f965088a914bba89be5dd4942f041dec429c922d040803894d162dbb8e3. 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/35PYtwhL61UKpdmSecXklp.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/35PYtwhL61UKpdmSecXklp.
{"copyright_id":"0x97cca9ed83f87c93d585abe7775a865395a259fd2d4b471e80fca1dcabd123de","isrc":"BKNXO2400003","name":"Vai no Chão","registered_at":"2026-06-19T11:26:34Z","spotify_id":"0rR3i5DmwgxkS8YOZafAy5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cca9ed83f87c93d585abe7775a865395a259fd2d4b471e80fca1dcabd123de. 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/0rR3i5DmwgxkS8YOZafAy5.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/0rR3i5DmwgxkS8YOZafAy5.
{"copyright_id":"0x22bde8ff5a267cd43d20525328225fd203f1ffedc096184b25f8d9a40958e67b","isrc":"QZNWX2485323","name":"MTG ELA GOSTA DO TREPA TREPA","registered_at":"2026-06-09T08:28:23Z","spotify_id":"5Bx4NfrIuPdcbeeMW567qQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bde8ff5a267cd43d20525328225fd203f1ffedc096184b25f8d9a40958e67b. 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/5Bx4NfrIuPdcbeeMW567qQ.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/5Bx4NfrIuPdcbeeMW567qQ.
Vai Flexionando X Taco La Dentro (Versão Bh)
{"copyright_id":"0x06498095869193e2b2bcf19f6a7fd4f03699844442b029cd97fe58fcf8e4a59e","isrc":"QZTBF2341082","name":"Vai Flexionando X Taco La Dentro (Versão Bh)","registered_at":"2026-06-04T07:45:15Z","spotify_id":"763zbhIx4obAF92VaXA33L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06498095869193e2b2bcf19f6a7fd4f03699844442b029cd97fe58fcf8e4a59e. 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/763zbhIx4obAF92VaXA33L.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/763zbhIx4obAF92VaXA33L.
{"copyright_id":"0x0bf3cfda525a49eaf78c0fd01fba2b0bf9da5b1508a545822bfc2eb2be96ce73","isrc":"QZTBB2391180","name":"MTG ELA CAI COM A BCT DE BIXO","registered_at":"2026-06-27T03:06:08Z","spotify_id":"3VcUIPgMW0o1K3pJE8iZHD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf3cfda525a49eaf78c0fd01fba2b0bf9da5b1508a545822bfc2eb2be96ce73. 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/3VcUIPgMW0o1K3pJE8iZHD.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/3VcUIPgMW0o1K3pJE8iZHD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9293403c3dfe0b791011948b9038a403443f9b221ba6aaf0e97a36243b770501. 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/4tW4Jq15CHo8n0GSSPjVUk.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/4tW4Jq15CHo8n0GSSPjVUk.
{"copyright_id":"0xca69aa87e607890af9017bc7df1e5468d95417257dd8c5aba34eda69d40a181c","isrc":"QZTPX2302935","name":"Duas Coisas Que Tu Não Nega","registered_at":"2026-06-20T06:20:50Z","spotify_id":"73uqGrGYr5jGmlhvyHpUJS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca69aa87e607890af9017bc7df1e5468d95417257dd8c5aba34eda69d40a181c. 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/73uqGrGYr5jGmlhvyHpUJS.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/73uqGrGYr5jGmlhvyHpUJS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8dfdd344971b364f2272d5a93cda0e3a4825f1c10b2489544b4ad4748d2555. 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/0fzuN7LrlBnzXhljsu1wnl.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/0fzuN7LrlBnzXhljsu1wnl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc181a49a93767d46edc4cf8ca2ef15ce2137865f112fe3dc18bd3a06af333ea7. 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/6AlnrJbjxKLSx0WNUU4nPM.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/6AlnrJbjxKLSx0WNUU4nPM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe16c9bc85a8e49505f80dab3248cd3d046ea8881f025a11486f23c812f8533. 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/3nqzCBiuBCWXZxFVUNILw4.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/3nqzCBiuBCWXZxFVUNILw4.
{"copyright_id":"0x2e7f1db0b1248ddb7ef480e3410db31b6ca74c426df2a5a6e75e70b4799bb9a4","isrc":"BX4IU2302621","name":"EU SOCO FORTE","registered_at":"2026-06-19T11:25:57Z","spotify_id":"5tyNlHMBr8ppevXH5FPu2e","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7f1db0b1248ddb7ef480e3410db31b6ca74c426df2a5a6e75e70b4799bb9a4. 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/5tyNlHMBr8ppevXH5FPu2e.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/5tyNlHMBr8ppevXH5FPu2e.