Sudhin Dasgupta (; 9 October 1929 – 10 January 1982) was a prolific Bengali music director, lyricist and singer. He worked in various other Indian languages, such as Hindi, Assamese and Oriya. His con
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 0x99ba8bfbe2b732f6c0a97a19330bf11f7b07449cb327459e56a511c106596120. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0002c1c2-04e6-4ce6-b795-6f526a71a170.json and https://artists.proofprofile.net/proofs/artist/0002c1c2-04e6-4ce6-b795-6f526a71a170.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shilalipi (Original Motion Picture Soundtrack)
Dak Harkara (Original Motion Picture Soundtrack)
Gali Thekey Rajpath (Original Motion Picture Soundtrack)
Panka Tilak (Original Motion Picture Soundtrack)
Antaraal (Original Motion Picture Soundtrack)
Tahole (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 0x1382be4be4d3b7febf063ea0dcee096a5b9ddcc4430d4874fe001f889129e9cd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/INH100380470.
Jete Jete Keno Amon Kore (From "Dui Parba")
Shankhabela (Original Motion Picture Soundtrack)
Sushanta Sha (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cdd1785be094cd9941ebcfb6bbce50538b57db6cbaf8af4f2d1ac18a3f1aac. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/INH100059730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaea4c2d7bd64a3b06c4f78b01c2222b4ad911735f89ac33a605fe85ad00cf0f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:55:30Z), 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/INH109355380.
Abhishapto Chambal (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7e993bb5ccf815970d7ddc2d2334e06fa0c62a056775dc3bf4289e82b5c072. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:21:36Z), 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/INH109515390.
Kakhano Megh (Original Motion Picture Soundtrack)
Teen Bhubaner Parey (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b7fe4b297d4e53fa1fbd6c47a420812439d9f5772e54973afc30dd5fc353e3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/INH109756150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fb101cd6abbf16519b56e1e95c81dc8cd3832dea939e3de913049b3f79dd37. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INH100184580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2b969470a38223c84bfa8f126775260807e0a77297929f6c939744e80b29b0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/INH109455950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1850c691eb1aec809289dba9cd6c9810d1bf5ae77fd03380a97c3037a1a4606c. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/INH109456070.
Pratham Kadam Phul (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb271f3a1264003c43e7d4a2869b65e89e7740f0d7337c6d63631df20b7cc82e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/INH109756110.
Manjari Opera (Original Motion Picture Soundtrack)
Chhadmabeshi (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc70acc236c26dccffeb4a5ead19e55a63017ebc543c7f945f3b39bb8f61498c. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/INH109355450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe256ece5655f4de701f9a5f100238c1b8be57f5bf720d342f1f0896e888505fe. 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/INH109455680.
Jai Bangla (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaa62ccd3b8cb597d84dd4d9627f06f5658124642968ef11f90c9ac1571d17e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/INH100160950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe256ece5655f4de701f9a5f100238c1b8be57f5bf720d342f1f0896e888505fe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INH109455680.
Ei Purnima Rati (From "Aranya") - Single
Aranya (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73c70f3058bc560c5910fe0473ec7b00663a040e1d1aef8568815eca4762a15. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INH100387650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfeeb2d222c4c0dfc2a38f261d255d0a325b65d27d9e67fa064701bc75533f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:38:20Z), 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/INH100387660.
Jaban (Original Motion Picture Soundtrack)
Picnic (Original Motion Picture Soundtrack)
Ek Je Chhilo Bagh (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d206e7f35865d9ca189f66b0a2bfa93ea85e1a2495eb649e2062da5a2fa3d80. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:52:42Z), 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/INH109456060.
Sajarur Kanta (Original Motion Picture Soundtrack)
Jibon Saikate (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b9c3530dd7af4df23c24cd5eaa6bf5db5e03ae2aa0e8888b6ef4153a86ee25. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/INH109455980.
Har Mana Har (Original Motion Picture Soundtrack)
Basanta Bilap (Original Motion Picture Soundtrack)
Epar Opar (Original Motion Picture Soundtrack)
Sangini (Original Motion Picture Soundtrack)
Pranta Rekha (Original Motion Picture Soundtrack)
Hangsaraaj (Original Motion Picture Soundtrack)
Suva Sangbad (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08823225c9d762f7c5f59f181b388e26fa8bb6a66e4293db7eeef2d9afe26ca5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/INH100059620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde27c6c6fa7d86be0f4d2687562ea23b57980f786e369c9707d33b892a5be5a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INH100368190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166aeff6fd27b0c5f542ccd338f8c2a3977f4a2b5cf21d1452b9f774386a8f79. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/INH100609709.
Aparajita (Original Motion Picture Soundtrack)
Karunamoyee (Original Motion Picture Soundtrack)
Job Charnaker Bibi (Original Motion Picture Soundtrack)
Suparna (Original Motion Picture Soundtrack)
Amritakumbher Sandhane (Original Motion Picture Soundtrack)
Banashree (Original Motion Picture Soundtrack)
All Time Greats - Sudhin Dasgupta,Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf286ad8e7b361cca56fd6c26b1fca23d5ede9f6af42e316b1a22c40a270851a4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:22:04Z), 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/INH109519590.