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 0x10a438db414d232aac03694589e45adc350f0e6e1522662803527957b998fd43. 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/cf0c41b5-ce28-475b-87bd-601b0aee06ef.json and https://artists.proofprofile.net/proofs/artist/cf0c41b5-ce28-475b-87bd-601b0aee06ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Avenida Paulista, da Consolação ao Paraíso
{"copyright_id":"0xd9c3862aea9992668c4ae9aa05e041d421ca8f31f0c5fec0f9150cf830f12ffe","isrc":"BCRSC2500009","name":"São para poucos","registered_at":"2026-06-18T11:12:24Z","spotify_id":"7vepDORthv8UbOd3SMsxPz","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 0xd9c3862aea9992668c4ae9aa05e041d421ca8f31f0c5fec0f9150cf830f12ffe. 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/7vepDORthv8UbOd3SMsxPz.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/7vepDORthv8UbOd3SMsxPz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ecd303fe56765eb83644a1c09ebe96f166ab830d82aacc15e5d3bf91c0646a. 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/4KRHg5QibP1rJV0WvFitWq.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/4KRHg5QibP1rJV0WvFitWq.
{"copyright_id":"0xb74c5f9fe29388e20b8bd939efa959363802ef28ba63b1f3925c09f0f71dfbe1","isrc":"BC3HV2400002","name":"McCoy Tyner","registered_at":"2026-06-08T20:08:26Z","spotify_id":"27AYcZiESrUyMRDnYWKSy4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74c5f9fe29388e20b8bd939efa959363802ef28ba63b1f3925c09f0f71dfbe1. 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/27AYcZiESrUyMRDnYWKSy4.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/27AYcZiESrUyMRDnYWKSy4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8730b121caf5a15ee4a72666fdbb149ef7d87dea7286bd9ba19eb81c4b1c583. 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/5ur6b4vN1fi82ykAVTij0J.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/5ur6b4vN1fi82ykAVTij0J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf41fe5d125b6f88453336ff61b59a29a3b0ea33c94144103a9e5636e13bb74a. 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/589pCTaEKmZBqOLrQz12Lt.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/589pCTaEKmZBqOLrQz12Lt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab77d97b4e783ba551cbc9dc0c2781e7c66d6af8b3700de2c7de4e69af047f73. 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/3fAV9PLzeoY4qR0sSkCape.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/3fAV9PLzeoY4qR0sSkCape.
{"copyright_id":"0xb53a6e0e4585c35b5a407b69b8d1277b801e69641c7c66df0fc71ea820c5487a","isrc":"BC3HV2400006","name":"Não Haverá Casamento","registered_at":"2026-06-08T20:10:19Z","spotify_id":"4XRCCkXowwrzSlHOMmeyKt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53a6e0e4585c35b5a407b69b8d1277b801e69641c7c66df0fc71ea820c5487a. 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/4XRCCkXowwrzSlHOMmeyKt.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/4XRCCkXowwrzSlHOMmeyKt.
{"copyright_id":"0xd67de3a4f82a504a7ddaa71b2a5387534b2ef6640f82e8c567c28ecee34046ec","isrc":"BC3HV2400007","name":"Amarelo Cor do Sol","registered_at":"2026-06-07T19:58:36Z","spotify_id":"0POtGM0ZbPyNqz9V5KFfh1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67de3a4f82a504a7ddaa71b2a5387534b2ef6640f82e8c567c28ecee34046ec. 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/0POtGM0ZbPyNqz9V5KFfh1.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/0POtGM0ZbPyNqz9V5KFfh1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019d88837c5fa9b347ed41aae73233c6152785e8b43c4bfb45c725e1c8ba4543. 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/6yw4I2suvBOQbDc7m9lXZk.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/6yw4I2suvBOQbDc7m9lXZk.
{"copyright_id":"0x8e2374b01f2ff24247d65cda82a9cfc4cced219ff8d599108996fead75b4cfff","isrc":"BC3HV2400009","name":"Todo Tempo Do Mundo","registered_at":"2026-06-07T00:33:16Z","spotify_id":"0DlgrlGN4HDJ1jbIZ4qJ1v","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2374b01f2ff24247d65cda82a9cfc4cced219ff8d599108996fead75b4cfff. 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/0DlgrlGN4HDJ1jbIZ4qJ1v.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/0DlgrlGN4HDJ1jbIZ4qJ1v.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909d5f157a4ee5be38211324f74c48a9bdc50708c8255985a7a2c3686f5c09ce. 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/7pnt7JQuAGwnqqQunMePbL.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/7pnt7JQuAGwnqqQunMePbL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79e4bbe8052633650a2f36885c251f48ae9845b8810860e9bb22fe4fe16668e. 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/7Hn4HI6EEe2WY7XTCYhZ9E.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/7Hn4HI6EEe2WY7XTCYhZ9E.
{"copyright_id":"0x230c89f1c18f8166479a6bad7cdb4bfa3e848dc8646061b8983bb5bab19b82c0","isrc":"BC3HV2400012","name":"Boca de Ouro","registered_at":"2026-06-07T00:33:10Z","spotify_id":"6zcmft1uTE1KBnHXEUueTQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230c89f1c18f8166479a6bad7cdb4bfa3e848dc8646061b8983bb5bab19b82c0. 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/6zcmft1uTE1KBnHXEUueTQ.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/6zcmft1uTE1KBnHXEUueTQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1f09b47e878939d1c07bf4927ef1f2e589b0e242f71de2f121f0a1d12cf457. 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/1EpLDVbc6SlpvWE46m3Gtb.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/1EpLDVbc6SlpvWE46m3Gtb.
{"copyright_id":"0x2fd69994e016ea716b06073b021258bd3c3b953c75e2fca8cc069d6f825b7c4b","isrc":"BC3HV2400014","name":"Dedo Cheio De Anel","registered_at":"2026-06-08T20:07:13Z","spotify_id":"49hGVmzMnX9JhTkZuMQl2i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd69994e016ea716b06073b021258bd3c3b953c75e2fca8cc069d6f825b7c4b. 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/49hGVmzMnX9JhTkZuMQl2i.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/49hGVmzMnX9JhTkZuMQl2i.
{"copyright_id":"0x762ab48a31ca4bc8a16fc1f2477d7b9d0eb8cf06a70b1f553f2f8eab1e83cba6","isrc":"BC3HV2400015","name":"Nova Ternura","registered_at":"2026-06-09T17:42:07Z","spotify_id":"5Cy3wlDMXQbTS3diAw1oVz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762ab48a31ca4bc8a16fc1f2477d7b9d0eb8cf06a70b1f553f2f8eab1e83cba6. 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/5Cy3wlDMXQbTS3diAw1oVz.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/5Cy3wlDMXQbTS3diAw1oVz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dcfdd531511776018b6a745c3622f698eb4142eae9e8a1a64b853b5b9c5157. 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/1Fs1UnJpe6Yvw4Y0ReyuWm.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/1Fs1UnJpe6Yvw4Y0ReyuWm.
{"copyright_id":"0x96f60ea73b90449d224cc2b375eb1fa508f9231f4bb8edd5c4939aa00036db7c","isrc":"BXIV82405541","name":"BrusaDaNike e GShock","registered_at":"2026-06-04T09:32:12Z","spotify_id":"0IVpVJkMTHiFiP6nq9kjM4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f60ea73b90449d224cc2b375eb1fa508f9231f4bb8edd5c4939aa00036db7c. 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/0IVpVJkMTHiFiP6nq9kjM4.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/0IVpVJkMTHiFiP6nq9kjM4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ecd303fe56765eb83644a1c09ebe96f166ab830d82aacc15e5d3bf91c0646a. 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/2ferQRK34IauU8DEMISbfw.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/2ferQRK34IauU8DEMISbfw.