Lopamudra Mitra is an Indian Bengali-language singer who started the trend of singing " Kobitar Gaan" or music set to poems. She is a doyen in this genre. Her most notable Kobitar Gaan, or poem set to
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 0x666b70941e967e975acacdd4453775136abd899b5e904068e2ad10a8ac9bdd72. 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/0bc16eb9-0600-488e-a8d0-b66a652c3b53.json and https://artists.proofprofile.net/proofs/artist/0bc16eb9-0600-488e-a8d0-b66a652c3b53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baro Bedom Chhutchhe Dekho Sabhyata - Single
Ogo Nadi Apan Bege Pagal (Para) - Single
Sanchayan - Kaan Pete Roi - Lopamudra Mitra - Vol 1
Sanchayan - Kaan Pete Roi - Lopamudra Mitra Vol -3
Sanchayan - Kaan Pete Roi - Lopamudra Mitra Vol -2
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 0x13008acd1ce5c1b4a8f44dc64aac98d13c603b1025e28c74798d2bde2dfbca96. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:10:32Z), 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/INH100285800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6399416484250514e832700ea4733b076bf634eb471e35322ddaa6773cd7011a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME2018392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd991ede97669d679aab14b4d71f6a1e90b8d468906907f341b968e8efa26996e. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/INH100382640.
Mone Rekho Tagore Songs - Lopamudra Mitra
Best Of Lopamudra Mitra Bengali Film Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfae6a840d4cee1d9f47d9fc0514122b600fcb283a174b6bd3c1a8e4219b1e14. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/INS181003767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6611756e2d8b766e941f7181ff0c16435b805aa6a08219be8b77b4d27b7ab83. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:02:53Z), 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/INS181003771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8a1ed84947669c9d3ec43de44e30c9a9f4a2fc19b5fe6a10553021518444e2. 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/INS181003774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b979487f2ff38e87baed5d286f0febb57b1a1b29da7015ee9d78e30b8d725a. 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/INU251900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf412fb471267d15c4f1610acd5c0bb03e29254d4e562c6d25f1bdc744b3a9bee. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/INU251900265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72be71bacf837051ee5bf484ad82ad66f69ce5e8a5fa6d32686863c4b2121535. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/INU251900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a20270f5c09afefc7ee4882f044d3e28af9ea98d67d768725ce920befa595a7. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/INS231725638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19250c70d7a346f35a05b22a9caf58114b8a9509257952cc17766459832ebd16. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/INS100700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0137736748ac3231e55ac7bb1e3460eda8c6f5ffe39cf526b7df26d34ba7950e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DGA052068389.
Doodh Pither Gachhe (From "Doodh Pither Gachh")
Dariye Achho Tumi Amar (Ananda - The Ecstasy)
Hawa Laage Gaaner Pale (Ananda - The Ecstasy)
Phagun Hawaye Hawaye (Ananda - The Ecstasy)
Sei Bhalo Sei Bhalo (Ananda - The Ecstasy)
Tai Tomar Ananda Amar Par (Ananda - The Ecstasy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c53ab5baaeb000008d69f8b67a77f15b19e6b263923289bf92e06c9d5862180. Chain 2 (Bitcoin): anchored in block 957842 (2026-07-13T10:08:30Z), 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/DGA072280642.
Ami Ki Gaan (From "5 No Swapnomoy Lane")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32eee84ffac7803c7c305af08049e194701630255bbb0cba38da6d878a1aecea. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INB562201015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458f87ddb11290900eb5e124c995b48f9e29100a54b5a5294afbf4aa22b7a4dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INB562200939.
Hemlock Society (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7519db03c410329c64d1d2dc991a50dd12b85dee66dddab184fdc178366b6d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INS2X1200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707f0e9a210858a966a2aadffdc7edf6e5d81ad1d96d14d63513c2c847a41f69. 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/INS2X2313005.
Rajkahini (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac45c58bbeb719f1412b307f4e335eff3dab757e32595383c3b9524cd6d32b4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INS2X1500191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402b69a5997a02d9a2a4d6b0c7ea65c054c1cc36e3711599061bec3591983116. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/INB562203540.
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