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 0xf49a79d247a3e6502311e2c96586439937195cf695808f06d48d05f356d1dfbd. 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/94c0bd55-3a83-4dd8-a54a-52bed9de18f0.json and https://artists.proofprofile.net/proofs/artist/94c0bd55-3a83-4dd8-a54a-52bed9de18f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2f6869ab9e147aa45cb2bc277370054e572501f8eae1c499dd14daa21416c725. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IQxNwPb0lWDWJGFpxaONm.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/7IQxNwPb0lWDWJGFpxaONm.
{"copyright_id":"0xa99339b17f8795378a2b7e163809273065e4540106f79c2395bbbf36fc90dc1f","isrc":"BR3UN2100001","name":"Todo Homem - Bhaskar, Mojjo Remix","registered_at":"2026-06-05T13:23:07Z","spotify_id":"40gvTsSMqg7yiEwIMvsrCn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99339b17f8795378a2b7e163809273065e4540106f79c2395bbbf36fc90dc1f. 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/40gvTsSMqg7yiEwIMvsrCn.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/40gvTsSMqg7yiEwIMvsrCn.
{"copyright_id":"0x00cf345dc2c7bdbb125b0ab6f4978c96d1ca7dd2420561b9f32b84718fd7b6c3","isrc":"BR3UN2200001","name":"Todo Homem - Antdot & Maz (BR) Remix","registered_at":"2026-06-04T07:33:29Z","spotify_id":"3kb5f77qPehMQkvQH5CQUg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cf345dc2c7bdbb125b0ab6f4978c96d1ca7dd2420561b9f32b84718fd7b6c3. 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/3kb5f77qPehMQkvQH5CQUg.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/3kb5f77qPehMQkvQH5CQUg.
29 Prêmio da Música Brasileira - Homenagem a Luiz Melodia (ao Vivo)
{"copyright_id":"0xd735ecfd6a3741e5ff3e0bb3e563521d09dbdb0f56a9a5522b84f55bcc16f67a","isrc":"BRPUI1800522","name":"Pérola Negra - Ao Vivo","registered_at":"2026-06-10T16:18:28Z","spotify_id":"66ttcLqLtCTtu5kxn4YzQO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd735ecfd6a3741e5ff3e0bb3e563521d09dbdb0f56a9a5522b84f55bcc16f67a. 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/66ttcLqLtCTtu5kxn4YzQO.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/66ttcLqLtCTtu5kxn4YzQO.
{"copyright_id":"0x1f1a698b10cbdb842f3c6e0e69522f43e93f0ec5df22832a79c849d58333de1d","isrc":"BR3UN1700018","name":"Todo Homem - Ao Vivo","registered_at":"2026-06-04T09:21:12Z","spotify_id":"1mqF7sHjvrA0COWqgX7HVM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a698b10cbdb842f3c6e0e69522f43e93f0ec5df22832a79c849d58333de1d. 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/1mqF7sHjvrA0COWqgX7HVM.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/1mqF7sHjvrA0COWqgX7HVM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1798cb25d176ac31dffa927093cf5122bb0c18b77002908f01d7d4270c2fc776. 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/0Br1JyBTmuO49RlNuwujjG.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/0Br1JyBTmuO49RlNuwujjG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6869ab9e147aa45cb2bc277370054e572501f8eae1c499dd14daa21416c725. 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/6mk830uwuH4LFvf3DCCfcR.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/6mk830uwuH4LFvf3DCCfcR.
{"copyright_id":"0xe19a90b04a24c176d4b34b62185c783cfcd7cd35a1ac78c93b1a03a66e4df163","isrc":"BR3UN1800030","name":"Alegria, Alegria - Ao Vivo","registered_at":"2026-06-04T14:06:17Z","spotify_id":"4g9FZotDgtpioHkh3z92fp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19a90b04a24c176d4b34b62185c783cfcd7cd35a1ac78c93b1a03a66e4df163. 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/4g9FZotDgtpioHkh3z92fp.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/4g9FZotDgtpioHkh3z92fp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3fdfa2a769b8e797ce2c68305814ba3584f99e034fa158c9f93d2aa37a96c9. 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/6uTyql75fO49GqVRrBpi3s.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/6uTyql75fO49GqVRrBpi3s.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a698b10cbdb842f3c6e0e69522f43e93f0ec5df22832a79c849d58333de1d. 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/5yEOl0huND3DBIWnb39Twf.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/5yEOl0huND3DBIWnb39Twf.
{"copyright_id":"0xf0f747258ca838894885d0887ff4b65be0269f695a9fbbde219d41f761978b78","isrc":"BR3UN1800034","name":"Genipapo Absoluto - Ao Vivo","registered_at":"2026-06-06T21:44:08Z","spotify_id":"5lzoXf1XxDYB0pxLDiKQpi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f747258ca838894885d0887ff4b65be0269f695a9fbbde219d41f761978b78. 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/5lzoXf1XxDYB0pxLDiKQpi.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/5lzoXf1XxDYB0pxLDiKQpi.
{"copyright_id":"0xbece1a3472a5074d215065249b371226ecac1a8171e2416a247ec5bd16cdbaa1","isrc":"BR3UN1800043","name":"Alguém Cantando - Ao Vivo","registered_at":"2026-06-06T09:47:52Z","spotify_id":"4kQjq5DWyqTqU1d0LpKgrR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbece1a3472a5074d215065249b371226ecac1a8171e2416a247ec5bd16cdbaa1. 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/4kQjq5DWyqTqU1d0LpKgrR.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/4kQjq5DWyqTqU1d0LpKgrR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23743347eb1172f23660c1c2093f117a0292a5390f5e20377950cb4c27f97ae. 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/46zzG56N0WZaPNUkKZPX2B.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/46zzG56N0WZaPNUkKZPX2B.
{"copyright_id":"0xe5fbde2df0c6aefe61f4b1d3c512a1ad0353cfbc73e1cb9c0ff95aff557f5e2a","isrc":"BR3UN1800051","name":"Não Me Arrependo - Ao Vivo","registered_at":"2026-06-07T19:22:52Z","spotify_id":"259qvAWilta7x2NqyywtSc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fbde2df0c6aefe61f4b1d3c512a1ad0353cfbc73e1cb9c0ff95aff557f5e2a. 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/259qvAWilta7x2NqyywtSc.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/259qvAWilta7x2NqyywtSc.
Um Canto De Afoxé Para O Bloco Do Ilê - Ao Vivo
{"copyright_id":"0x0d7c6e5f3089456df794b5b1158794979ec547277c62a12cb5b85d7fda1c4cfc","isrc":"BR3UN1800001","name":"Um Canto De Afoxé Para O Bloco Do Ilê - Ao Vivo","registered_at":"2026-06-07T06:54:07Z","spotify_id":"72jJ7fy0iBVb7fTvplYgDv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7c6e5f3089456df794b5b1158794979ec547277c62a12cb5b85d7fda1c4cfc. 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/72jJ7fy0iBVb7fTvplYgDv.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/72jJ7fy0iBVb7fTvplYgDv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ad52213e593493bb01a52a46192e6440f03b669f20e69b72f3fdd529facd86. 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/3OdMZmlgN8E2Yum4l1rnKN.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/3OdMZmlgN8E2Yum4l1rnKN.
Canto Do Povo De Um Lugar / Um Tom - Ao Vivo
{"copyright_id":"0x9f76fc9c450f122d20fa0f720b9a69d9fd6cd2f034e89fad5959e03871ad6e65","isrc":"BR3UN1800055","name":"Canto Do Povo De Um Lugar / Um Tom - Ao Vivo","registered_at":"2026-06-08T02:28:21Z","spotify_id":"3YbnOI0laocMLOQ4FEfXFl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f76fc9c450f122d20fa0f720b9a69d9fd6cd2f034e89fad5959e03871ad6e65. 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/3YbnOI0laocMLOQ4FEfXFl.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/3YbnOI0laocMLOQ4FEfXFl.
{"copyright_id":"0xec7fb414e7a2e3e784f6dbf83173fe0144d0a3baa4ed55167081f45b60b98904","isrc":"BR3UN1800057","name":"Tá Escrito - Ao Vivo","registered_at":"2026-06-05T07:14:34Z","spotify_id":"7CIrXIC3mNDyJtkz4ThSnL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7fb414e7a2e3e784f6dbf83173fe0144d0a3baa4ed55167081f45b60b98904. 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/7CIrXIC3mNDyJtkz4ThSnL.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/7CIrXIC3mNDyJtkz4ThSnL.