Debdeep Mukhopadhyay is an Indian cryptographer and professor at the Department of Computer Science and Engineering of the Indian Institute of Technology Kharagpur. He is currently serving as the Asso
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 0x7335709e6d3ef98c7bb85d7f6ec21cc165eec7bef3e94248e0ffa48c4bbdb078. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de8d5d16-7a9e-46df-8c3b-03d6a8e2a845.json and https://artists.proofprofile.net/proofs/artist/de8d5d16-7a9e-46df-8c3b-03d6a8e2a845.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x941e5711ec0fab511b8f291b8375840a88489403c27f171fdb00267c1dbf37f1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR2X42001327.
Behaya Batashey (From "Rawkto Rawhoshyo") - Single
Amar Ektarata (From "Rawkto Rawhoshyo") [Male Vocals] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ee7e9b6a09241f0dcd8bf5b61c12f5b1d34ceebb0ba55a95afa481e643e681. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS3O1800056.
Behaya Batashey (From "Rawkto Rawhoshyo")
Amar Ektarata - Male (From "Rawkto Rawhoshyo")
Rawkto Rawhoshyo (From "Rawkto Rawhoshyo")
Bahanno Ta Pakhi (From "Onko Ki Kothin") - Single
Ekta Golpo Bolo (From "Onko Ki Kothin") - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eab63dcdda4122da16393e385b95d91bc86ff3d13cf3e35ead5dceca36d4d4e. 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/INT442402240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dac51b776be293212b4d6c42bde236a4208101115874fd7cf1bddbf9c140caa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZES52200042.