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 0x49bef5a14d7ef1e031893990382e71d9b3598f197d79428f0d9252e0d03e6d84. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0a4899d-2a6a-4bd5-94d0-4655c6e8ba07.json and https://artists.proofprofile.net/proofs/artist/f0a4899d-2a6a-4bd5-94d0-4655c6e8ba07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bota Em Você Machuca (feat. Flow Key, Bernax e DJ RD)
{"copyright_id":"0x67ec820ecffd3e53dda99ba3951786aca5eab5589fe97a0bfc2c4e0620a30054","isrc":"BC3PG2200224","name":"Bota Em Você Machuca (feat. Flow Key, Bernax e DJ RD)","registered_at":"2026-06-05T11:12:29Z","spotify_id":"37aYm4KlP3ZG78NrFFAT9O","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 0x67ec820ecffd3e53dda99ba3951786aca5eab5589fe97a0bfc2c4e0620a30054. 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/37aYm4KlP3ZG78NrFFAT9O.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/37aYm4KlP3ZG78NrFFAT9O.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3427477b656dd84b4a6569db327aad2f7e73258281afa3441fa79e9b833c9615. 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/4H26no36jNrQz7vACtDePy.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/4H26no36jNrQz7vACtDePy.
{"copyright_id":"0x3374e6de62cf30178c695560019fd804057fe560face8151c4cf76f3221aa85a","isrc":"BC3PG2200016","name":"Coragem (feat. Ana Castela e DJ RD)","registered_at":"2026-06-05T07:22:19Z","spotify_id":"7acWlwj6s0NPBUHroqkvGy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374e6de62cf30178c695560019fd804057fe560face8151c4cf76f3221aa85a. 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/7acWlwj6s0NPBUHroqkvGy.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/7acWlwj6s0NPBUHroqkvGy.
{"copyright_id":"0x518182408c37c514ec49d2617e005d4e84eae58cca0a07e006d5171ed3975537","isrc":"BC3PG2200226","name":"Bruto Memo (feat. Flow Key, DJ RD)","registered_at":"2026-06-19T11:31:13Z","spotify_id":"3RK2cOQWLLpJYMkWYpFAQZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518182408c37c514ec49d2617e005d4e84eae58cca0a07e006d5171ed3975537. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3RK2cOQWLLpJYMkWYpFAQZ.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/3RK2cOQWLLpJYMkWYpFAQZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009140f5d0654747f6a24a2ba85059434f3496beba9679537f6249ee59eac20a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1WZDdWkE99AGkavJ1zyC1X.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/1WZDdWkE99AGkavJ1zyC1X.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90450e97771cf030e22ca2b483c16e45c82461d7264724f7d0ecc568519f8ef9. 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/6KUC0Tp3HhbUzxya6HgN0L.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/6KUC0Tp3HhbUzxya6HgN0L.
{"copyright_id":"0x67ec820ecffd3e53dda99ba3951786aca5eab5589fe97a0bfc2c4e0620a30054","isrc":"BC3PG2200224","name":"Bota Em Você Machuca (feat. Flow Key, Bernax e DJ RD)","registered_at":"2026-06-05T11:12:29Z","spotify_id":"024L7scwJ4LMDITI5J0BBW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ec820ecffd3e53dda99ba3951786aca5eab5589fe97a0bfc2c4e0620a30054. 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/024L7scwJ4LMDITI5J0BBW.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/024L7scwJ4LMDITI5J0BBW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90450e97771cf030e22ca2b483c16e45c82461d7264724f7d0ecc568519f8ef9. 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/7dsDw9KdjcCzp3Ud01ya48.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/7dsDw9KdjcCzp3Ud01ya48.
{"copyright_id":"0x009140f5d0654747f6a24a2ba85059434f3496beba9679537f6249ee59eac20a","isrc":"BC3PG2200035","name":"Casei Com Ela (feat. Bernax, DJ RD)","registered_at":"2026-06-11T05:03:56Z","spotify_id":"2NBGhjCTbkwD8OyTtxE7ec","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009140f5d0654747f6a24a2ba85059434f3496beba9679537f6249ee59eac20a. 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/2NBGhjCTbkwD8OyTtxE7ec.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/2NBGhjCTbkwD8OyTtxE7ec.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518182408c37c514ec49d2617e005d4e84eae58cca0a07e006d5171ed3975537. 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/4E3aEmH8JA9J5VSHmoLmJM.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/4E3aEmH8JA9J5VSHmoLmJM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3427477b656dd84b4a6569db327aad2f7e73258281afa3441fa79e9b833c9615. 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/3KIKHPfi47CbJOf0T41s38.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/3KIKHPfi47CbJOf0T41s38.
{"copyright_id":"0x3374e6de62cf30178c695560019fd804057fe560face8151c4cf76f3221aa85a","isrc":"BC3PG2200016","name":"Coragem (feat. Ana Castela e DJ RD)","registered_at":"2026-06-05T07:22:19Z","spotify_id":"7pyGvL29OOzokWoIMRtmxZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374e6de62cf30178c695560019fd804057fe560face8151c4cf76f3221aa85a. 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/7pyGvL29OOzokWoIMRtmxZ.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/7pyGvL29OOzokWoIMRtmxZ.
{"copyright_id":"0xc07ea469aa4441e6e63d0da54697a8ffb6c556c3e6a1ffb0eda03a066d753809","isrc":"BCY422200003","name":"No Beat do Mega","registered_at":"2026-06-25T21:13:45Z","spotify_id":"5mAchsNpMVue4mcBi0YeRW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07ea469aa4441e6e63d0da54697a8ffb6c556c3e6a1ffb0eda03a066d753809. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5mAchsNpMVue4mcBi0YeRW.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/5mAchsNpMVue4mcBi0YeRW.