Pandit Ajoy Chakrabarty (born 25 December 1952) is an Indian classical vocalist, composer, lyricist and an exponent of the Patiala-Kasur gharana. He was awarded with the Padma Bhushan, the third high
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 0x29b40f9986a966508b4b5d75da02d166703f2a1e2f215609f628dd30f5e9879e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/141b9126-ffa0-4fdb-957b-e2e88956cbb5.json and https://artists.proofprofile.net/proofs/artist/141b9126-ffa0-4fdb-957b-e2e88956cbb5.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 0x6527f202bf1f6ac6fdfebd90f6f6dfecbefdc3a5c68b01464e8b12b337b1e02c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TW1884465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65247311b8ffb034d2a54c0d49a72e992cc2f99607480d2f2e726719c11e24ed. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMFMF1528095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fd6a86661aa6917b340cbe069ef4b190ffb318b90b3596b3bb6ab0f70f123d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFMF1528096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7746bd32c2497453b4a9f4dbb550f5f4b3e6becace44a845337cc45956ca7618. 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/QMFMF1533568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cdf97b54cd06313fb2faacb02a0a1212264184e3662876304612241879205e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TW1584832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe52d167e945637c37f8d4d725326c403d909a540967cec6f5d47bbc1f8e497. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QM4TW1584831.
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 0xdc46c7340a7617bcc966f596758cb43490154cd3cbe638aa664c2291153b08e8. 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/USXNY1200036.
Raga: Ahir Bhairav (Bandish in Vilambit Ektal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc2b02b17f42a26463ad09215ed91faf0ab0fa210741664ea2460750389e08e. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USXNY1200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f3b9b1aee5e5252c078eedbba73335a550c20db5e6ebf2fa6514d396cc7a2a. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USXNY1200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76eceba87138e6d4f440d2ff42f62fbc5de79bfc1047d8666ed4d5d821f7648. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USV291367938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542eb9a86fa247509a330eee2865201805af2ae90b5212c3b59ebef94b1b476a. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USV291302277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc29ee499b4241bcd6e0f5d1b1d80c210a0112a2f9a21b67e7e03f1e98f63ac. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USV291302278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e28961dda0765d35146cfdafcda73f24dae06ba50605f1d5a59f991f02ca72e. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USV291302281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859c74cc63cf5a43d461fb034bf4496b48c0a085c53b5d33a113577182e979b3. 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/QZNWR2175996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aaccd82cb9c1f1583f1380d618885c06384100ee720d96daf19efeb27647c7a. 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/QZNWR2176006.
Raga Bhairavi Thumri - ‘Kaisee Bajaayeeri Shyam Bansuria' Pt2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4588dcd1be4578464282277ebbecb9ecc2ff8dfb927055d13ac206a79cac50. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBHNS0400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b78a11bb6898fff27480ed36c768d926de41ad0294cb0880e6aac0fc1a8d0a6. 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/USA370697546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2c6b97161ac1a13a12fa004030dc01db1c9b1ca1baca3c6a53d9b6941cb0da. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USA370697544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b05f1301389f172fbb7159d09597d2afa6c1e71c3295aaf79fdbe876a4ad77. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA370697545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92328134df2a0c2f298ff7ad34129daf89f7368b460dfe8fa9d783440190af15. 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/INA190200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f9828eca487948cfab9cee36a4b2e972796863f67f4f9202f37862a6af2461. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/INA190200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7516829e2b34ae3797e1fe243f3ae96ee35b17fac563f57e60cca1eb24251d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/INA190200039.
Maestro's Choice Series Three - Ajoy Chakrabarty
Raga Hamsadhwani - Tera Bhaag Jaagaa, Vilambit Ektala; Lagan Mori Laagi, Drut Teentala; Vataapi Ganapatim Bhajehum, Addha Teentala
Ajoy Chakrabarty, Samar Saha, Brojo Mukhurjee, Anal Chatterjee, Bidhan Mitra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202bdb0cff70fc0bf888e142d71eac6d8b6c93408b9298cc597849daefc13df5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA370532717.
Swapna Niye (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4843e29b59cbfbb7414844c1f6a1a20086fb3861b6418c3d35c5ca643b2309. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INH100613652.
Live at the Queen Elizabeth Hall, London - June 26, 1993
Live in Philadelphia: North Indian Classical Vocal Concert
Vairagya (Live at the Kufa Gallery, London, July, 1994)
Ragas Bhoopali & Megh (Live at The Queen Elizabeth Hall, London, 1993)
Pandit Ajoy Chakrabarty: Ragas - Bhoopali & Megh (Live at Queen Elizabeth Hall London, 1993)
Ragas Bihag, Pahadi & Bhairavi, Vol. 1 (Live at The Royal College of Music London, 1990)
Gadar Ek Prem Katha (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4beee07129dd11ecbf1e2f9c7ce009ab2509ffe9312fa06821bc4b1ef9a0e83. 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/INZ031400001.