1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722c70623b2c6f5ba0c6756074e191132fc3c85f2fcfb84b54b3aa4f87c82372. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/975b366d-c56c-4c9a-831e-b892086d72e1.json and https://artists.proofprofile.net/proofs/artist/975b366d-c56c-4c9a-831e-b892086d72e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Channachara (Original Motion Picture Soundtrack)
Aaghat (Original Motion Picture Soundtrack)
Tumi Kato Sundar (Original Motion Picture Soundtrack)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f979f33894e13217ad520c78fab93c31e42d6bf966ee8129c362b9f8f4eaf59. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172202917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2326e9a7a20f5898f24093dbacaa03df9af36b3b337b76bbba5422a2eb187ef7. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172202919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1ed8e261a1c5f7120c656528a236e1a62e1236ebb1ffd927f037b0a1aa15d3. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172202923.
Angar (Original Motion Picture Soundtrack)
Abhimanyu (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88db14a15ea51c5a95b07cbf82567c2677e041e167046049b6fbc13bd1383150. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172203885.
Jiban Sangi (Original Motion Picture Soundtrack)
Chetana (Original Motion Picture Soundtrack)
Agnishikha (Original Motion Picture Soundtrack)
Iswar Parameswar (Original Motion Picture Soundtrack)
Phire Paowa (Original Motion Picture Soundtrack)
Prathama (Original Motion Picture Soundtrack)
Bidrohini (Original Motion Picture Soundtrack)
Pather Saathi (Original Motion Picture Soundtrack)
Puja (Original Motion Picture Soundtrack)
Naach Nagini Naach Re (Original Motion Picture Soundtrack)
Nikhoj (Original Motion Picture Soundtrack)
Mahaan (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabd5490b19463560502c1fafbcc391ed3ca48bd0c247ca764b09d6aaa5739c9. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172203172.
Hingsha (Original Motion Picture Soundtrack)
Baro Bou (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eeb9d7ff564d3ddee82e449e993cb79263df4f8942c85e184bba5124c5bf515. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172203948.
Shriman Bhootnath (Original Motion Picture Soundtrack)
Lola Lucy (Original Motion Picture Soundtrack)
Dadabhai (Original Motion Picture Soundtrack)
Tiger (Original Motion Picture Soundtrack)
Asha Aakankha (Original Motion Picture Soundtrack)
Bengali Eternal Love Songs of Kishore Kumar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1ed8e261a1c5f7120c656528a236e1a62e1236ebb1ffd927f037b0a1aa15d3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172202923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2326e9a7a20f5898f24093dbacaa03df9af36b3b337b76bbba5422a2eb187ef7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS172202919.