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 0xfe42a7e39413ff4b8daa74b3a6f1ccaa01fd00b9ea62c981e464d08fbe3743de. 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/d9345f10-751c-41ae-84a3-879c993dc07d.json and https://artists.proofprofile.net/proofs/artist/d9345f10-751c-41ae-84a3-879c993dc07d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Meu Amor Me Agarra E Geme E Treme E Chora E Mata
{"copyright_id":"0x1505d09a85f087d85ac5b9d952eba6ee732dc2cad25bf5102271f28cdf74952d","isrc":"BRUM71200397","name":"Farrapo Humano / A Morte","registered_at":"2026-06-29T15:29:35Z","spotify_id":"1n7Kw96GQvTvUZD4sQpnMu","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 0x1505d09a85f087d85ac5b9d952eba6ee732dc2cad25bf5102271f28cdf74952d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1n7Kw96GQvTvUZD4sQpnMu.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/1n7Kw96GQvTvUZD4sQpnMu.
Jards Anet Da Vida / Dois Corações / No Meio Do Mato / O Faquir Da Dor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a4604e6d701c62cb08e95d83431e6aa00a920e620d139194603e290e053ced. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1fB2tTREY9885rzvOBgEdv.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/1fB2tTREY9885rzvOBgEdv.
Mora Na Filosofia / E Daí? (Proibição Inútil E Ilegal)
(What Did I Do to Be so) Black and Blue - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c481537b91ad82a257f4992c2c433b16b9133594d8aae9313b015275d5eab5. 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/3T5DaVMsgeJEjLbCtawQXN.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/3T5DaVMsgeJEjLbCtawQXN.
{"copyright_id":"0xde3144c06162485b96d9931e8c2429782c1a29023bd1d8b65c64364e5ed9b3e7","isrc":"BRPUI1100171","name":"Revendo Amigos (Volto Pra Curtir)","registered_at":"2026-06-26T20:10:43Z","spotify_id":"4RnoPwybKZyg6zv86uT3Xj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3144c06162485b96d9931e8c2429782c1a29023bd1d8b65c64364e5ed9b3e7. 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/4RnoPwybKZyg6zv86uT3Xj.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/4RnoPwybKZyg6zv86uT3Xj.
{"copyright_id":"0x94ad0d9f4c0f111b00593ef7a4d01083bb8039eb6c52ecbef33a9644b19dd43e","isrc":"BRPUI1100165","name":"Negra Melodia","registered_at":"2026-06-08T02:32:51Z","spotify_id":"3jgfD3b3p4QqFh5wf7IgqW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ad0d9f4c0f111b00593ef7a4d01083bb8039eb6c52ecbef33a9644b19dd43e. 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/3jgfD3b3p4QqFh5wf7IgqW.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/3jgfD3b3p4QqFh5wf7IgqW.
{"copyright_id":"0x3b7bc0dba29ba0e5bf64023de6d1eae9b40ebf95b53a6cbb4ca31877ac69d6a0","isrc":"BRPUI1100172","name":"Mal Secreto","registered_at":"2026-06-18T14:23:30Z","spotify_id":"2a8T4Z10eCRisPjQufqwwy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7bc0dba29ba0e5bf64023de6d1eae9b40ebf95b53a6cbb4ca31877ac69d6a0. 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/2a8T4Z10eCRisPjQufqwwy.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/2a8T4Z10eCRisPjQufqwwy.
Pot-Pourri: Flor da Pele / Vapor Barato - Ao Vivo
Jards Anet da Vida / Dois Corações / No Meio do Mato / O Faquir da Dor
Meu Amor Me Agarra & Geme & Treme & Chora & Mata
Tira Os Óculos e Recolhe o Homem - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb51e96594549eadbef56e9df39f41aa80718d9776bc2aa038a72a15c63e770. 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/61F000TD5mLOR1cvDi8WuB.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/61F000TD5mLOR1cvDi8WuB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e3e0406b404a215264855d37af2346047b53f438c881f1b1342020f1105a92. 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/5tNsKlO1Y7gjfPBbgWiMjH.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/5tNsKlO1Y7gjfPBbgWiMjH.
{"copyright_id":"0x49343a48ebd4f4ccd09db40149b3b1a0045d8fbced71925ce55bf151babe771d","isrc":"BXKBP2200148","name":"O Amor Vem da Paz","registered_at":"2026-06-25T08:17:13Z","spotify_id":"0FP12lJBF9o14Au0iK2uOG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49343a48ebd4f4ccd09db40149b3b1a0045d8fbced71925ce55bf151babe771d. 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/0FP12lJBF9o14Au0iK2uOG.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/0FP12lJBF9o14Au0iK2uOG.
{"copyright_id":"0x645789d2ae9ffcc9006ba0e4cc8e23b7868798df37e50afea92db706da7b47e6","isrc":"BXKBP2200125","name":"Sem Samba Não Dá","registered_at":"2026-06-18T20:33:38Z","spotify_id":"7r5xMzxttAoh37w33lN1Rv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645789d2ae9ffcc9006ba0e4cc8e23b7868798df37e50afea92db706da7b47e6. 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/7r5xMzxttAoh37w33lN1Rv.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/7r5xMzxttAoh37w33lN1Rv.
{"copyright_id":"0x645789d2ae9ffcc9006ba0e4cc8e23b7868798df37e50afea92db706da7b47e6","isrc":"BXKBP2200125","name":"Sem Samba Não Dá","registered_at":"2026-06-18T20:33:38Z","spotify_id":"00QTIX4fflefXLEbSH4e1N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645789d2ae9ffcc9006ba0e4cc8e23b7868798df37e50afea92db706da7b47e6. 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/00QTIX4fflefXLEbSH4e1N.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/00QTIX4fflefXLEbSH4e1N.
Mal Secreto - Ao Vivo no Coala Festival 2023
{"copyright_id":"0x25abf5cafd3cbf558d211d6ac36e6efe02729e66e6c1481cd5658c8ce265a5b9","isrc":"BCNMM2400019","name":"Mal Secreto - Ao Vivo no Coala Festival 2023","registered_at":"2026-06-21T21:37:03Z","spotify_id":"3x4kn4yjg5hyoqmoTrQVQR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25abf5cafd3cbf558d211d6ac36e6efe02729e66e6c1481cd5658c8ce265a5b9. 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/3x4kn4yjg5hyoqmoTrQVQR.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/3x4kn4yjg5hyoqmoTrQVQR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff878d90d225052e8012799fbbd2232b8833eebac0566ac5485442b4ceb3b23c. 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/6bdEbUiphMyQQSgS5jUfeh.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/6bdEbUiphMyQQSgS5jUfeh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809171e63f03c54f57575995f1aac9ae40bb03dc16d63a2616afb15b23f21647. 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/6bxKgx1HFr7aiuC8kZURcN.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/6bxKgx1HFr7aiuC8kZURcN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c0fa6b14577f4fc127c642ee7ebd9396bb6027351392bce4fb305a7e5edaf8. 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/4AsTidNpLi8KrsU34htGvR.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/4AsTidNpLi8KrsU34htGvR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1649df46976be1d43b5a4794713badfbf3247b37474c26b6463180cd83c3373. 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/1vxO99erFSJdTY9WKONkOc.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/1vxO99erFSJdTY9WKONkOc.
{"copyright_id":"0xf81c3891952883e82dc2b429d11341a9ef9c5b9aaf59ded9c6605e4e3f52a7dc","isrc":"BXPNP2100034","name":"Síntese do Lance","registered_at":"2026-06-11T21:51:47Z","spotify_id":"1XqsE1Ej4kzkWgVAX7Y3W6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81c3891952883e82dc2b429d11341a9ef9c5b9aaf59ded9c6605e4e3f52a7dc. 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/1XqsE1Ej4kzkWgVAX7Y3W6.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/1XqsE1Ej4kzkWgVAX7Y3W6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ca162877b70682a35a9f2c11082270c5ac6679cac87d93271b0e6c66a4a4e1. 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/07FdenxHdeJbdVJ8kD1ARI.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/07FdenxHdeJbdVJ8kD1ARI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1532dcb3b6d4476641eec576f9f0fc184bb563a0c9465af66eb28011365360. 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/6bjyrKsapI55cOTc4lLLNz.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/6bjyrKsapI55cOTc4lLLNz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c69763f149483ecb04093fba3a2f1582a306c8651956338315b9c62906799f7. 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/7Hsfqo7s0M88LYtRRM7dl0.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/7Hsfqo7s0M88LYtRRM7dl0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c44b0e292b53d8d273b219749836bb7261025a650d51dd11e0de67c688312f. 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/2KPRorKeRC4d9KgNSUCrVd.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/2KPRorKeRC4d9KgNSUCrVd.