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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e07d209d783fe8b3607630102d9a0b1e06979e83830a944b818b685cf32809a. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77b54bf6-cbc7-4737-a9a7-3cc3263d22e4.json and https://artists.proofprofile.net/proofs/artist/77b54bf6-cbc7-4737-a9a7-3cc3263d22e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Koto Je Minoti (Original Motion Picture Soundtrack)
Rangbaz (Original Motion Picture Soundtrack)
Beiman (Original Motion Picture Soundtrack)
Dur Theke Kache (Original Motion Picture Soundtrack)
Bondini (Original Motion Picture Soundtrack)
Anonto Prem (Original Motion Picture Soundtrack)
Ovijog (Original Motion Picture Soundtrack)
Salim Javed (Original Motion Picture Soundtrack)
Manosi (Original Motion Picture Soundtrack)
Lootera (Original Motion Picture Soundtrack)
Bodnam (Original Motion Picture Soundtrack)
Avijan (Original Motion Picture Soundtrack)
Lal Mem Saheb (Original Motion Picture Soundtrack)
Vaggolipi (Original Motion Picture Soundtrack)
Shona Bou (Original Motion Picture Soundtrack)
Nishpap (Original Motion Picture Soundtrack)
Chapa Dangar Bou (Original Motion Picture Soundtrack)
Dhaka 86 (Original Motion Picture Soundtrack)
Stree (Original Motion Picture Soundtrack)
Jiner Badshah (Original Motion Picture Soundtrack)
Malamoti (Original Motion Picture Soundtrack)
Ghor Bhanga Songshar (Original Motion Picture Soundtrack)
Bap Beta 420 (Original Motion Picture Soundtrack)
Dil (Original Motion Picture soundtrack)
Professor (Original Motion Picture Soundtrack)
Chokhe Chokhe (Original Motion Picture Soundtrack)
Sonia (Original Motion Picture Soundtrack)
Zid (Original Motion Picture Soundtrack)
Noya Laila Noya Mojnu (Original Motion Picture Soundtrack)
Prem Shokti (Original Motion Picture Soundtrack)
Ek Poloke (Original Motion Picture Soundtrack)
Lozza (Original Motion Picture Soundtrack)
Sneher Badhon (Original Motion Picture Soundtrack)
Ke Oporadhi (Original Motion Picture Soundtrack)
Rongin Rangbaaz (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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d63835dfaa604d211019ebf2b8e773cdafe1b86122670f718cee84b25572ccd. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FRX202167849.
Durdanto Dapot (Original Motion Picture Soundtrack)
Bini Sutar Mala (Original Motion Picture Soundtrack)
Top Terror (Original Motion Picture Soundtrack)
Nishi Raite Aisho Bondhu (Original Motion Picture Soundtrack)