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 0xf61d428c6cc3294f85c1b7594e76144d1c6acb36c1fb323ea2bb477db51f9f6e. 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/4ac87876-49a6-45d5-b913-d7865f18a7df.json and https://artists.proofprofile.net/proofs/artist/4ac87876-49a6-45d5-b913-d7865f18a7df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mtg Depois do Baile 2 Vs Ta Levinha ne Maldita
{"copyright_id":"0x397662f2790a9c3f0ff93a68ca6972c4980425b8fe035cffe28752f39402ae8a","isrc":"QZNJW2471157","name":"Mtg Depois do Baile 2 Vs Ta Levinha ne Maldita","registered_at":"2026-06-20T00:25:37Z","spotify_id":"0xFGf8y5729tYBHPWCMiKw","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 0x397662f2790a9c3f0ff93a68ca6972c4980425b8fe035cffe28752f39402ae8a. 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/0xFGf8y5729tYBHPWCMiKw.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/0xFGf8y5729tYBHPWCMiKw.
Mtg Dança Bebe Ainda Fuma um Verdinho Vs Vem pro Serrão
{"copyright_id":"0x722e83f951129bd716aa3be320e8e700538366d6ad647f7e2aad1c752afc9ae1","isrc":"US7VG2402267","name":"Mtg Dança Bebe Ainda Fuma um Verdinho Vs Vem pro Serrão","registered_at":"2026-06-05T21:39:19Z","spotify_id":"4CSM5wSGFOTh7NcX5bgU28","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722e83f951129bd716aa3be320e8e700538366d6ad647f7e2aad1c752afc9ae1. 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/4CSM5wSGFOTh7NcX5bgU28.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/4CSM5wSGFOTh7NcX5bgU28.
{"copyright_id":"0x5faa1ed379cca3202bd3ce83858b405816a3943a6f5edee87512cbffe7008efb","isrc":"QZW9K2306098","name":"Mtg Deixa Ela Passar Vs Ela É Top","registered_at":"2026-06-01T17:57:48Z","spotify_id":"2aXgnQz63y5Xgufvg84oag","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faa1ed379cca3202bd3ce83858b405816a3943a6f5edee87512cbffe7008efb. 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/2aXgnQz63y5Xgufvg84oag.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/2aXgnQz63y5Xgufvg84oag.
{"copyright_id":"0x2093f23b9e955f8b103cfa0653f35f41daff9802e8c9a700aa664ec38446e35f","isrc":"BCL2K2400069","name":"Mtg Vou Fumar um Balão","registered_at":"2026-06-20T06:03:43Z","spotify_id":"3BnHHXErI2T4ymT3Z6iizT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2093f23b9e955f8b103cfa0653f35f41daff9802e8c9a700aa664ec38446e35f. 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/3BnHHXErI2T4ymT3Z6iizT.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/3BnHHXErI2T4ymT3Z6iizT.
{"copyright_id":"0xc6fa1affabec2d8de62e29572e6cb3db1693fb076aaa3443470d4aa185849661","isrc":"QZNWY2329786","name":"Cintura Ignorante","registered_at":"2026-06-22T07:43:23Z","spotify_id":"0s28wLcYfj4GWn7kUAQCVP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fa1affabec2d8de62e29572e6cb3db1693fb076aaa3443470d4aa185849661. 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/0s28wLcYfj4GWn7kUAQCVP.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/0s28wLcYfj4GWn7kUAQCVP.
{"copyright_id":"0x799e74a767dd64b4745e85137c4a04e16abba87f06efbc30b85bd7b4bdcdbd55","isrc":"QZW9M2332908","name":"Mtg Sou Eu Assim Sem Você","registered_at":"2026-06-08T12:17:27Z","spotify_id":"4JGVGbaPCqgxDMiTRTb1SC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799e74a767dd64b4745e85137c4a04e16abba87f06efbc30b85bd7b4bdcdbd55. 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/4JGVGbaPCqgxDMiTRTb1SC.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/4JGVGbaPCqgxDMiTRTb1SC.
{"copyright_id":"0x08d6113b11b2ccd35a7cd851289de66939c3a2b401213a6bc2706cf28039578e","isrc":"QZTPX2376698","name":"Aquecimento do Txutxucão Vs Ela É Top","registered_at":"2026-06-07T13:41:13Z","spotify_id":"3OtYZkuR3sK0XGAWD74c8i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d6113b11b2ccd35a7cd851289de66939c3a2b401213a6bc2706cf28039578e. 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/3OtYZkuR3sK0XGAWD74c8i.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/3OtYZkuR3sK0XGAWD74c8i.