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 0x1f2176f268360b47cda2f1d536884ccfaf455c51ab473aab70ee65476445a001. 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/855f3a41-3ad8-4431-b6b3-01a67d8f5724.json and https://artists.proofprofile.net/proofs/artist/855f3a41-3ad8-4431-b6b3-01a67d8f5724.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 0xd84bdb973f52783686811df40e1dc33e9f4a992c6f169f866d179ed9134bd7e9. 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/7L1Tus3MzZlakd7fvzlZ52.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/7L1Tus3MzZlakd7fvzlZ52.
{"copyright_id":"0x39d4142a2dbdf54df9d44a527c5f3d13f3c27e81bbd51a55a88d5d4822af5f38","isrc":"QZNJX2490570","name":"Tipo Hollywood","registered_at":"2026-06-19T11:28:00Z","spotify_id":"7aHjUrHkSRVnBqbqQ1lhVW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d4142a2dbdf54df9d44a527c5f3d13f3c27e81bbd51a55a88d5d4822af5f38. 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/7aHjUrHkSRVnBqbqQ1lhVW.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/7aHjUrHkSRVnBqbqQ1lhVW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa419538376f6e53d2dfdf9b841444e89fc2341c06f16b573c52d2d647b85a6c0. 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/0jC7CITOLqQhFIjd7Wb3aL.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/0jC7CITOLqQhFIjd7Wb3aL.
Automotivo Tipo Hollywood na Xereca Toma Toma
Automotivo Tipo Hollywood na Xereca Toma Toma (Slowed)
Automotivo Tipo Hollywood na Xereca Toma Toma (Speed Up)
Automotivo Tipo Hollywood na Xereca Toma Toma (Super Slowed)
Automotivo Tipo Hollywood na Xereca Toma Toma (Super Speed Up)
{"copyright_id":"0x1390fc89462fdff8a1b0b1ca7a913d0e10bbeebc27b99d52ceb42b6ff4be0f46","isrc":"ESA112433691","name":"Ela Posta Ela Gosta","registered_at":"2026-06-25T11:23:04Z","spotify_id":"0dZ2ltVABPIhkxZCS8rY0E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1390fc89462fdff8a1b0b1ca7a913d0e10bbeebc27b99d52ceb42b6ff4be0f46. 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/0dZ2ltVABPIhkxZCS8rY0E.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/0dZ2ltVABPIhkxZCS8rY0E.
Tipo Hollywood, Se Controla Vida Vem por Cima e na Xre, Toma, Toma
{"copyright_id":"0x6cd9242a1d1452302ae67d4c257ffb95c0640517247f0972d0c3175bc01e2702","isrc":"QZGLM2480331","name":"Nos Acessos do Concordia","registered_at":"2026-06-21T02:40:09Z","spotify_id":"6yqGa8wFoMJDrWwLikwA8X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd9242a1d1452302ae67d4c257ffb95c0640517247f0972d0c3175bc01e2702. 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/6yqGa8wFoMJDrWwLikwA8X.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/6yqGa8wFoMJDrWwLikwA8X.
Set do Zuca (feat. Mc Junior PK & Dj Dudu Coupper)
{"copyright_id":"0xa212afbeb66f8f4bd000a33a3924ed2fecd1f21a254bb573e0ae51a4d0dff2da","isrc":"ESA112428930","name":"Set do Zuca (feat. Mc Junior PK & Dj Dudu Coupper)","registered_at":"2026-06-08T03:12:42Z","spotify_id":"2CahzK3bsYPGWg4Wp6zVIz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa212afbeb66f8f4bd000a33a3924ed2fecd1f21a254bb573e0ae51a4d0dff2da. 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/2CahzK3bsYPGWg4Wp6zVIz.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/2CahzK3bsYPGWg4Wp6zVIz.
{"copyright_id":"0x4ac00b80aad77d39cddd6b5f05e52825914d254d8702189b5bf5166b70fd5e08","isrc":"BX4IU2404354","name":"Se Quer Cair Com o Popô","registered_at":"2026-06-04T05:38:49Z","spotify_id":"3zpSumdFHODkHiHJEI9cYt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac00b80aad77d39cddd6b5f05e52825914d254d8702189b5bf5166b70fd5e08. 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/3zpSumdFHODkHiHJEI9cYt.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/3zpSumdFHODkHiHJEI9cYt.
{"copyright_id":"0xa64cd2adfec1dacf9ab045b205286fb00d0ee8958b031146a21f02658e8fb5b6","isrc":"QZ5AB2439950","name":"As Novinha do Baile","registered_at":"2026-06-21T02:50:19Z","spotify_id":"2yzzbKrTIr8LJ3sOJ6NGOe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64cd2adfec1dacf9ab045b205286fb00d0ee8958b031146a21f02658e8fb5b6. 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/2yzzbKrTIr8LJ3sOJ6NGOe.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/2yzzbKrTIr8LJ3sOJ6NGOe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce7d66d7e10200e0d17f77d76293d00dc721d93078f9aea3f3a3a3e8826501d. 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/4auMS8Fns5pLD7iV553HIy.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/4auMS8Fns5pLD7iV553HIy.
{"copyright_id":"0x3c130a15c08ba771e469754a47e29cbbc24436c59b6df92d5ca94a3d944725ec","isrc":"ESA112318722","name":"Dangerous (feat. Dj Chadin do C)","registered_at":"2026-06-07T07:32:15Z","spotify_id":"6fMl1GRDhuNogRG7ZT0xGg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c130a15c08ba771e469754a47e29cbbc24436c59b6df92d5ca94a3d944725ec. 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/6fMl1GRDhuNogRG7ZT0xGg.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/6fMl1GRDhuNogRG7ZT0xGg.