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 0x4530b19e7359667b69b95460f1e730dd120917a9609ef00d7a9b5eb7ee7506dd. 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/560a76d4-2673-4548-91b4-cbe8c9e348b0.json and https://artists.proofprofile.net/proofs/artist/560a76d4-2673-4548-91b4-cbe8c9e348b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x93d17a5ae5c40b66b01451d7dc1bc12cff5fcea8748443d335004e3dc6fd578b","isrc":"BRMCA7900137","name":"Fruto Maduro","registered_at":"2026-06-27T07:56:28Z","spotify_id":"5ANv3oBfbIIV5H5UH9mlaI","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 0x93d17a5ae5c40b66b01451d7dc1bc12cff5fcea8748443d335004e3dc6fd578b. 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/5ANv3oBfbIIV5H5UH9mlaI.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/5ANv3oBfbIIV5H5UH9mlaI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f764c5f862d777a44f2fde1352696d0196913bcd502a074f7a1909e44f4ba6. 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/7i1NKjcDR4eeup8dIMUBKh.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/7i1NKjcDR4eeup8dIMUBKh.
{"copyright_id":"0x58f9aaf52e218be724fce31de7b67699267798ec60067e5a6db7dd4306dc54eb","isrc":"BRMCA7900142","name":"Pedaço De Mim","registered_at":"2026-06-11T12:47:44Z","spotify_id":"3g5hOdcBVvzcXDGArTwu47","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f9aaf52e218be724fce31de7b67699267798ec60067e5a6db7dd4306dc54eb. 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/3g5hOdcBVvzcXDGArTwu47.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/3g5hOdcBVvzcXDGArTwu47.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9060d8bf74bf4a2a7200fe9c4ce7a0c28c7c3766b1307ccdd5f45b925d6a23cf. 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/0r1xv8QtTQxW4PoCxPNjlH.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/0r1xv8QtTQxW4PoCxPNjlH.
Engraçadinha (Tema Do Filme "Engraçadinha")
O Amor Vem Pra Cada Um (Love Comes To Everyone)
Canção De Protesto (Vinheta) / Música Incidental: Rêve D'Amour
Canção De Protesto (vinheta) / Música Incidental: Rêve D'Amour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8c2cee004e21a878cdf3be15f2a026ab567cafbcb5da3d823b38438a9ddcff. 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/3b0DJfrWpYzR0f771K4kqP.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/3b0DJfrWpYzR0f771K4kqP.
Pout-Pourri: Escurinho / O Samba e o Pandeiro
Mais Simples / Música Incidental: My Song - Medley
{"copyright_id":"0x3ed16b56741eee3d5c79e55d72ad5da8373b1369a3f3ded1c48c4b5c85aada71","isrc":"BRPGD9700665","name":"Abertura: Lacreme Napolitane / Vurria","registered_at":"2026-06-29T07:36:50Z","spotify_id":"0WzCTMXNKZZA4oNl7k0c4u","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed16b56741eee3d5c79e55d72ad5da8373b1369a3f3ded1c48c4b5c85aada71. 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/0WzCTMXNKZZA4oNl7k0c4u.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/0WzCTMXNKZZA4oNl7k0c4u.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bba522e9a08d75870edb0ea1299bc5f07af6a0ff376729ab7dbfb9f55cfeed. 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/6ROR9TmfOwyO0x9NrvfEYC.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/6ROR9TmfOwyO0x9NrvfEYC.
Preciso Dizer Que Te Amo / Este Seu Olhar
Caminhos Cruzados / Citações: Águas De Março / Wave / Inútil Paisagem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9781153b212de6e5f988ee1882345c2c4842f50a8f174fce57176e321633c95c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/605Ioz8YX5iwyvcOl74hvL.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/605Ioz8YX5iwyvcOl74hvL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b073bfcb8861f46d55fdef4c3485ff7006a168af2a701259ff188df2625309f. 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/6SgE3Ap6qJLo2zCT9xgv9p.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/6SgE3Ap6qJLo2zCT9xgv9p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1889e4e470ad4052476ca070b6a691d27623fd8cbd699d8f450807e4430f2c1c. 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/6NKIP7pIuUocMbaHOyGMlK.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/6NKIP7pIuUocMbaHOyGMlK.
A Voz da Mulher na Obra de Guilherme Arantes
Cidadão Brasileiro (Trilha Sonora Original)
Mensagem (Poemas de Fernando Pessoa e Músicas de André Luiz Oliveira)
{"copyright_id":"0xe4a84191ad242fedf9d90c98c81020febd3b442b7548bb04ffc497a210d042fe","isrc":"BREMI1300147","name":"Meu Erro - Ao Vivo","registered_at":"2026-06-10T16:15:14Z","spotify_id":"4DBtIytfc9QEgQgRsm3qdQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a84191ad242fedf9d90c98c81020febd3b442b7548bb04ffc497a210d042fe. 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/4DBtIytfc9QEgQgRsm3qdQ.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/4DBtIytfc9QEgQgRsm3qdQ.