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 0xa947a9c1d309f32123653a7dcba4f1b55e1eaf69e71cdfe79542cf2b95511f19. 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/41e7543f-de24-4fe8-bfa0-9c20ad807938.json and https://artists.proofprofile.net/proofs/artist/41e7543f-de24-4fe8-bfa0-9c20ad807938.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xa0f888cb1bb5dd54b78eb1e2690bd8dcfee6fe9072f5fd5472c2538e20cde922","isrc":"QMFMF1383961","name":"Klanti Amar Khoma Koro Probhu","registered_at":"2026-06-29T16:20:38Z","spotify_id":"13h5HANM4Xr8oML7ENgRMd","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 0xa0f888cb1bb5dd54b78eb1e2690bd8dcfee6fe9072f5fd5472c2538e20cde922. 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/13h5HANM4Xr8oML7ENgRMd.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/13h5HANM4Xr8oML7ENgRMd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0640312d2703945a57ecca07637b90a5da6e246fb2c05a12e232e36f680117. 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/2JvCyZZp9nIiTDYq6Ur47V.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/2JvCyZZp9nIiTDYq6Ur47V.
{"copyright_id":"0x9428dfc3cd30c952fad7f12d8b0dc80dfa9716ced2da2e746160ec7ccd844ee7","isrc":"QM4TX1797640","name":"Chander Hansi","registered_at":"2026-06-29T16:13:39Z","spotify_id":"4vY0YEQCkMhzbYJqTwEHYD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9428dfc3cd30c952fad7f12d8b0dc80dfa9716ced2da2e746160ec7ccd844ee7. 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/4vY0YEQCkMhzbYJqTwEHYD.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/4vY0YEQCkMhzbYJqTwEHYD.
Aj Jyotsnaraate (From "Bhootchakro Pvt. Ltd.") - Single
Aj Jyotsnaraate (From "Bhootchakro Pvt. Ltd.")
Rekka(Robindronath Ekhane Kawkhono Khete Aashenni)
Dekho Sokha ( From "Abbar Kanchanjangha")
Dekho Sokha (From "Abbar Kanchanjangha")
{"copyright_id":"0x4d5cf49be09f8b5c3c68429f499cab76e06850cd33f4c2302410c844b09a8ea8","isrc":"INA191700120","name":"Jakhon Porbe Na Mor","registered_at":"2026-06-24T14:00:17Z","spotify_id":"1Az2nMvVgssfYCoZfBuy5H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5cf49be09f8b5c3c68429f499cab76e06850cd33f4c2302410c844b09a8ea8. 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/1Az2nMvVgssfYCoZfBuy5H.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/1Az2nMvVgssfYCoZfBuy5H.
Phagun Haoyay Haoyay - From "Bhalobashar Bari"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d7c5be27f21783a9167b538de971d5f3b39d9a5647f322c935619993085372. 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/1Jn9PoqOr28nsRx03XodSH.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/1Jn9PoqOr28nsRx03XodSH.
Batase Urche Abir Elo Holi - From "Alexander Er Pisi"
Batase Urche Abir Elo Holi (From "Alexander Er Pisi")
Ekti Tarar Khonje (Original Motion Picture Soundtrack)
{"copyright_id":"0xaacc24ed4ccc36c23966ba4a7d9b6bed175c48ec5ea62f33a9a46aae41ec0a24","isrc":"INS2X1000003","name":"Shokhi Bhabona Kahare Bole","registered_at":"2026-06-06T04:48:01Z","spotify_id":"3QlEUKcUQFZlQmFJquYz1z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacc24ed4ccc36c23966ba4a7d9b6bed175c48ec5ea62f33a9a46aae41ec0a24. 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/3QlEUKcUQFZlQmFJquYz1z.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/3QlEUKcUQFZlQmFJquYz1z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063ff9476d4db65a42299a6be449601d68cb815053729957fd36eb6226bf9cf5. 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/3D2z3GufnNRmNdMczwWHGm.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/3D2z3GufnNRmNdMczwWHGm.
Aamar Aami (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1633de07efb2fe86d857b89e00f6cb163fb097fec45918fc25659acb8d72c43. 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/4vwc8wuFp7NEKRKH2I2z7C.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/4vwc8wuFp7NEKRKH2I2z7C.