Rezwana Choudhury Bannya (born 13 January 1957) is a singer from Bangladesh. She is an exponent of Rabindra Sangeet, the songs written and composed by Rabindranath Tagore. She has won many awards incl
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 0x9480c60f882f31cd066b0da78de010620a64d3c09be4f3712bae492191130dd6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15f8ef5f-70fd-4a94-ad09-1f62fcd48759.json and https://artists.proofprofile.net/proofs/artist/15f8ef5f-70fd-4a94-ad09-1f62fcd48759.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Apan Pane Chahi - Rezwana Choudhury Bannya
Moner Majhe Je Gaan Baje - Rezwana Chowdhurybannya
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 0xa7818d31f4188a1a633d0af0cf7304c646919e872cf60ae8ce99c282ccbaee4d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ662334211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b401a50a5dcc6f4d7b968d8fff1eb7817670520b0b1be1ab48237c7ce1d6446. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZZ662334228.
Rabindra Sangeet (Anek Diner Moner Manush)
Rabindra Sangeet (Rahi Rahi Ananda Taranga Jage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ff3436a0b506ffd6d718c2bf0be974b77b7ee92ba788f5c063e4b33f9cf878. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR2X41748387.
Moner Majhe Je Gaan Baaje Rezwana Chowdhury Bannya - Vol 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aebc9f74bda003ca22cb5e6ff780864556952e47b3c753cca79ca2f01fd3dfb. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/INH100187840.
Moner Majhe Je Gaan Baaje Rezwana Choudhury Banya
Moner Majhe Je Gaan Baaje Rezwana Chowdhury Bannya - Vol 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0599ad704dcf7e643fc5d45329e6663d5adc8e28e69afe915a2910eff3dcc16. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR59R1655932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a707df88d20d4d915987ed5ab4faab54dd3e2e30f618d9e00048b3fc910d80. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/INI110867900.
Baro Bedonar Mato Tumi Hey Bejechho Amar Prane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ed218243993537d7a2521ea1dae5ea85a8a04208eced65d1f8f2f53b2326e4. 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/FR2X41748433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a542cec90e735f8aff1fd599b32807045d6707b5c780c24f616a12712f038c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:04:10Z), 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/FR2X41748383.
Best Of Rezwana Choudhuri Bannya Rabindra Sangeet
Tumi To Sei Jabei Choley - Best of Rezwana Chowdhury Bannya