Nachiketa Chakraborty, simply known as Nachiketa, is an Indian singer-songwriter and playback singer known for his modern Bengali lyrics. He achieved fame in the early 1990s, with the release of his d
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 0x94284071f49821567f3b74147add2d598f6d9e4492a3e7ae182a425195eeab02. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac4299dd-b41a-4885-942c-fcd76d337723.json and https://artists.proofprofile.net/proofs/artist/ac4299dd-b41a-4885-942c-fcd76d337723.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nilanjana - I (Se Pratham Prem/Lal Phite Sada Moja)
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 0xfcb97c534d229fc8caa44108be7e96df31ce7ab45a30462ef3c2b76200591b30. 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/INH109516540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc211da96685024358ea0a15ddef14ee7986cd20ff063f5e67511120c464388a7. 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/INH100427010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbfca9fe790a4dd2e28ffb907ac9183f16f64a9b0c847999cc62d21301261d0. 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/INH100382440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb310442c3edcb104a8c07b49ecd17bd4cb5f1c2bab670c2c522e9d460bf0d234. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/INH100182070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82de7329f55678b8b17b135a76df0d2c5f096d1cbe0b538dad688d747716857. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/INH100703083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd3747a90937164635f10d55e78b33964eab7ff5665a62d44ab82078625562b. 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/INH100289160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e8238800221bb6aa184d0c49a01cc6023cbcc57e3cec160d05030628bee34c. 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/INC261000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614d055c599da1299d6a14bdecd2e573a5292e433adbfe9a7c99e95dc675e085. 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/INC261000004.
Mahanayika (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c9140b8033258a2ae9fbe3ee7368fc25facc2f588b64d0c831977c05853cb9. 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/INH100506225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3826f9a13cb9f8039991d638b1f00060f5c1b421462581f589ee42f677d746. 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/INH101202329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbfca9fe790a4dd2e28ffb907ac9183f16f64a9b0c847999cc62d21301261d0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/INH100382440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc649bcb7ff4b967a59d54277487d683599b7ac4c9321fbd3c95b6df03d7544df. 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/INH100382480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ec5d7e34955dd922c339476249c834482ab8ad785e2fa75c5522c5c07680e3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INH109516520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb97c534d229fc8caa44108be7e96df31ce7ab45a30462ef3c2b76200591b30. 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/INH109516540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c94f2d791550d264bb1da66dce4d53681e9fd0521185ce16117d4b6408052c1. 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/INH109821100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3189791983ff684e9db814dd97fe2a0c8d666cdf90c5e24f64fda8895f89d1e6. 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/INH100182150.
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 0x03d35def36348fa7e5b4d76cd79ad88798a6c3ed53ba62aaf0c82f7d9ebbce30. 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/INH100370000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c648cf4c4ca715f3137eff34287ffcade294932d0959f1e78c73d0890ec7e83. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INH100507367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a5ed9b73603d1d5595cd772975d45d6e05ad3aed46cf39821d6417debf8f25. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INH100507370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d24cfd269724d8507c6e1ca16794d1212c07d511ef62acbc47f6992b72b463. 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/INH100612823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24b3cb58b1cfde9da10243d092b3d7bf9dd5955d688ad8a4f28c8f96681b1bf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INH100613687.
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.
Hathat Bristi (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb42dd072493116fc9dc353145c7c5d493b9fe668201ae4909ec758ab23072a. 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/INH109856260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b33c12d8d063692235fb5736618e708032ae82f693c4f4e05d41ce6d24fc077. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/INH109856270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec1958ce24bd6e0ae011cc03020931eac5e5e52d080f2505511ca5dcb20e360. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INH109856280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9290cea105b895214649d28c9b8ff13b06473dc3dc0c41209120ba546ae71ef5. 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/INH109856320.
Bondhu Dekha Hobe (From "The Red Files")
Sedin Kuyasha Chilo Title Track - Male (From "Sedin Kuyasha Chilo")