Kabir Suman (; born as Suman Chattopadhyay; 16 March 1949) is an Indian singer-songwriter, music director and composer, writer, actor, politician, and former journalist.Kabir Suman profile, india.gov.
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 0x7f90272c27fb026e75851789abadc250b75e6469870da0a635ab85bdcf380c9f. 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/d0a0d742-66fb-4a60-99ad-66db70050286.json and https://artists.proofprofile.net/proofs/artist/d0a0d742-66fb-4a60-99ad-66db70050286.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e2dd82f8c7ba6fe4e893a0d0765f33218b68e9a5243d1fec19f27e26171420. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/INH100615563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc251f5120c7225f53f73b7e4cae7de956c3c1e9b46e5ba52ee034fa83ff02601. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INH109422970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac31582d6a065623a844249f53a11f60295cda590981fe3b71c467d2a474d64b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/INH109422990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dfe5d8336b68d20338541b8640cf921840d8cfa176f3f42cf9a1beaad505f6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/INH109423090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f3faf4993480d59a3cc3e01ee2c5fac1310eb090f6310ab54d5f2d4f92b68. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:38:27Z), 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/INH109423120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e2dd82f8c7ba6fe4e893a0d0765f33218b68e9a5243d1fec19f27e26171420. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:53:50Z), 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/INH100615563.
Amar Ei Path Chaoatei Ananda- Suman Chatterjee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20ae7daad525cf0d4c9713c23448111e58986bb99573de08f90a3776d01ff3a. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/INH109620640.
Yodha (Original Motion Picture Soundtrack)
Maha Sangram (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f5bd27fac34f6d2417e0b266772059103b74ec0394fcbd811a766e38c7f241. 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/INH109424120.
Suman Nachiketa In Concert, Vol. 1 (Live)
Shudhu Jaoya Aasa Shudhu Srote Bhasa - Kabir Suman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68356c08dd511773939dd0880a40f842825454e0d5b01d259c911f78f1878f4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/INH100188010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15291cb7b4e0c295a52b85a14fa0efa60c76662dc75c98c3429d0c6da5fd7c35. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:14:45Z), 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/INH109620560.
Amar Ei Path Chaoyatei Ananda - Kabir Suman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c64cd6572f8894f0972cf447d97ad080c16a4c52aa7a084c0daa3f0a3cd6db. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:05:23Z), 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/INH109620620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7443ec82f2132d9024fdcf881da91e7d1bb07fe5c2494da6664c4ee98db996b5. 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/INH100621929.
Sedin Chaitramas (Original Motion Picture Soundtrack)
Krishna Chura (Original Motion Picture Soundtrack)
Surjakanya (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade3e47d25429bad61cc493b6d886dcfa0eae689adfcf7364ba06d810f61c551. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:23:09Z), 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/INH100156310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b48132338638494111b3ffa2be86ae361c361a6ca603286115b19e8e45f6d3. 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/INH100803019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb45c7ef20de3c81ea485dd19e4afc9ccba3c827825dd34f306b50569f921f5e. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:42:07Z), 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/INH100630976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb45c7ef20de3c81ea485dd19e4afc9ccba3c827825dd34f306b50569f921f5e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/INH100630976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dab1c579eaa674b28b71311e50d51a22b5e4f5b784473147aeb50b549f20d1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:25:10Z), 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/QMFMF1353212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547b7af11293c5e14d134c12cb6592ffdb568c4bd19869c1f7a07c99abb7fe27. 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/QMFMF1353213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38124585c2b7332d1f74a32202d12c1a99e96a4180666b3104362d2cd85d2ea. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QMFMF1353214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522ece6f4a4317b2f0f88abdc264cf18776f90a174c6ceb0f211dd529392de3b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMFMF1353215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e904ffcd6142c5971ed1b6af122543f930c98d80459b37cc5f7440958017cc8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:37:08Z), 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/QMFMF1353217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcd77d5812410ac2da4f12dff1a5dfc77ae97dddf1cc587b3cc97e80482fff4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMFMF1353219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a42bf51df9a648e5d6fab290373d01a2d05b82f8cd671647b5c43267513823. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:42:19Z), 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/QMFMF1353221.
Guhamanab (Original Motion Picture Soundtrack)
Shankar Mudi (Original Motion Picture Soundtrack)
Chhoriye Gechhi - Raga Dhani - Khyal in Madjya Tintal
Bela Shesher Abogunthon - Raga Potdeep - Khyal in Madjya Tintal
Shyamal Deshe - Raga Potdeep Khyal in Jhaplaal
Pore ASA Alo - Raga Potdeep Khayal in Bilombit Ektaal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3424c0d062f91b09df355af287f6c572b80ccd4cc06b5a20844964a0f6df5399. 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/INT132200445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b9d4e9e92f5a51a75adf5d50b760eeee3e18a00877aff136d7517c1bd5b2de. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/INH109424320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6383d302ab57547df0d23163ded80d656cd90276fc62cd35cc0b90a55b63e54. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INH109424350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091f8971292a6e917b7ce8474b43ea69051453d43741c92cce4253f980707d90. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/INH100153810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708a4ecfc4c4375ef77a4cee2401464aeadd49b00c3805f0f3af54fd5e4bd61a. 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/INH102414242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bf0c5a11c8a9ca614173319c519bcb576fef73ba7ef5b0571b3933e071f32d. 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/INH100182970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b1d4e6aca2461fec40d9c7b3f8de22add321c8126d2dac91d978c2637f695c. 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/INH100617096.
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.