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 0x32e8ae68516b09bda7e33cf3fee1ea26bc4baab7af302db9857b943a548a0af9. 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/db0c1f09-4272-4677-a9c2-a76394e55a26.json and https://artists.proofprofile.net/proofs/artist/db0c1f09-4272-4677-a9c2-a76394e55a26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xc457e52ac3e2bc538b8b302d7e021d1a9c88a42d9539ed66dff163f05086d1d2","isrc":"BCIH82203946","name":"Montagem das Antigas 2","registered_at":"2026-06-09T17:50:58Z","spotify_id":"0qCHgkHLLUp9naV86nMby3","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 0xc457e52ac3e2bc538b8b302d7e021d1a9c88a42d9539ed66dff163f05086d1d2. 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/0qCHgkHLLUp9naV86nMby3.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/0qCHgkHLLUp9naV86nMby3.
Mulher de Verdade Gosta Mesmo É De... (Speed)
Mulher de Verdade Gosta Mesmo É De... (Slowed)
{"copyright_id":"0xabf29c09ea82d4e1cfe6426df14bd436892ae72c6507de7e594520ac6f1ca35b","isrc":"QZNJY2495793","name":"Montagem Caótica","registered_at":"2026-06-24T13:33:20Z","spotify_id":"5ZFQTg9fg7Nrj7nK8msCXa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf29c09ea82d4e1cfe6426df14bd436892ae72c6507de7e594520ac6f1ca35b. 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/5ZFQTg9fg7Nrj7nK8msCXa.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/5ZFQTg9fg7Nrj7nK8msCXa.
{"copyright_id":"0xcad06ee6cf9c702833fae6d852e784dabcf5fa4b5a2bbb32638d0aa475de2d3f","isrc":"QZMZ92554550","name":"Trava Cérebro 2","registered_at":"2026-06-25T14:45:59Z","spotify_id":"0Edee5TIlLBvq9FVXriYqV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad06ee6cf9c702833fae6d852e784dabcf5fa4b5a2bbb32638d0aa475de2d3f. 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/0Edee5TIlLBvq9FVXriYqV.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/0Edee5TIlLBvq9FVXriYqV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3239ed62dc84c4f18c0026449d5bed935fe8a217c7c98c516d7e118907a50129. 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/44FKGUG1RAH0h51e0ZWEmF.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/44FKGUG1RAH0h51e0ZWEmF.
{"copyright_id":"0xcd0fc751b5c9b32f79b745d439921db54eaf9f0f2b0ade7fcf94bb7ee491c71d","isrc":"QZNJV2461911","name":"Montagem do Passado","registered_at":"2026-06-24T13:57:30Z","spotify_id":"3rmo7ykHv4SC11AeagZq3B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0fc751b5c9b32f79b745d439921db54eaf9f0f2b0ade7fcf94bb7ee491c71d. 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/3rmo7ykHv4SC11AeagZq3B.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/3rmo7ykHv4SC11AeagZq3B.
Set o Mais Diferenciado do Mandela (Magia em Forma de Canção
{"copyright_id":"0xefaadfd268bf840322904116629c088153eca7104f0ab221adc1fb81e8c6da3e","isrc":"BCIH82306848","name":"Sessão das Relíquias 2","registered_at":"2026-06-17T23:06:33Z","spotify_id":"5YpFf7xmngTnChqGpp49TO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaadfd268bf840322904116629c088153eca7104f0ab221adc1fb81e8c6da3e. 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/5YpFf7xmngTnChqGpp49TO.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/5YpFf7xmngTnChqGpp49TO.
Montagem das Antigas 3 (feat. dj davi zs)
{"copyright_id":"0xb185649eb5fadb52da3a90e302a5f7658b70deb9f0294fddff14c36a6dc241ff","isrc":"BCQ7H2300006","name":"Montagem das Antigas 3 (feat. dj davi zs)","registered_at":"2026-06-05T21:38:17Z","spotify_id":"6N1cXNzkWCGSpE0wBmuwLs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb185649eb5fadb52da3a90e302a5f7658b70deb9f0294fddff14c36a6dc241ff. 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/6N1cXNzkWCGSpE0wBmuwLs.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/6N1cXNzkWCGSpE0wBmuwLs.
Vou da um Vidro de Lança - É o Lança de Coco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba84515918a6e9f0f56d90a1db32ab031d03e1a5c2896091ef09d56090acb09. 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/3apk8FdxocwzGV9U2UmNT7.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/3apk8FdxocwzGV9U2UmNT7.
{"copyright_id":"0xf0b86e475c702f3bcd0fcdcac92b37085ddccfed955582e8ff7b03171d9400b7","isrc":"BCIH82201790","name":"Socorro Popeye","registered_at":"2026-06-21T07:04:14Z","spotify_id":"3O94AKlNL7RiqltuWNLiof","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b86e475c702f3bcd0fcdcac92b37085ddccfed955582e8ff7b03171d9400b7. 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/3O94AKlNL7RiqltuWNLiof.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/3O94AKlNL7RiqltuWNLiof.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55369836941f0e3f2c12e2da8fcb78e261e5d39a64d04e613954c2568d10a064. 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/72Uthxs3RDtDHWGS7bWgQx.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/72Uthxs3RDtDHWGS7bWgQx.