Srikanta Acharya is an Indian singer-songwriter and music director. Acharya primarily sings contemporary Bengali songs and is one of the most prominent exponents of Rabindra Sangeet. Early life Srika
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 0xa56ec6fd8cbea3c40188b3739337d5f29fafffef7010a3a4655d462ddcb1d4b8. 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/0804afa3-33fc-4274-9984-a3fcd8eaee1d.json and https://artists.proofprofile.net/proofs/artist/0804afa3-33fc-4274-9984-a3fcd8eaee1d.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 0xd52a56206fa142d488f56500cb066cd7d214e3d31b0a382e04969b8144b2888d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM6N22118941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf88b5829501a0348b138ef10f98d21ea9138da0ea451849e4df0ea59b2f0ded. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM6N22118953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b2f813646e2bd59d0b5c8ab6c4f3c95e183b078e22f62a7ccd5b1b88ab4aaa. 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/QMFME2018208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e163edfa7ecbc6ad8d96008744672d4076a93512b7cbf262f537707b014788. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/INA191000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66895fc2efb9791660ff50cbd9fe51218d61ff9cb47e2e5f08891a2e6e31d880. 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/INA191000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f70c63d6bb3f22350608778aa57edcceef941c0b59e5b928a538ab27fcce1f9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/INA191000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c31f56c0195f89ea2c04d923eca322e83f8a7ea880d401ddd8936a9750fe43. 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/INA191000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7793ade8c37ce8d31b52bcdb08cbc58491d8752b59d367b1008e9efe02a8c725. 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/INA191000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2557dbca189d97d2c8e4d23a32d21cd1979dfe60b29e86935a0f9b040c923676. 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/QM4TW2128709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda70c00ae89226b00f14c7eb1821693113df3b1c9740c745249a56b95395e89. 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/QMFME2064657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d1cce403abe12e524db0c978511dff4fef7b6c87df1794ab7edccf3fc99ebb. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QMFME2064658.
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 0xadbe21a9a451b3118368409272e9162a45e7b699e1a57ecc6378d459371817cf. 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/INN242002506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6152d8c5a7d0a686e191cea4708d1b6070d787de20e6b5cc4560caa8a890d72c. 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/INB561900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6e5e9e000015bd80250106b277f6aaf7b0854acf87f463426ef15cc0a028d1. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:04:26Z), 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/INN242101738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2693b3c0f8a640291f388576a521a10fa64239959fabe8ccf37a351062c2b800. 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/QM6N22156857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209890aa7349ed29c74506270235da5a71d5a63018a3e030a8c2f4d8b6abf658. 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/INN242103643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c3ad477d054757a55d439d88fdda0a5abf2e7e831c646674c6e495015b5e0c. 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/INN242103644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215ee7218201669508eeff59e6afee2db05ecfb8f676eda2e2370b415eb2570a. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/INR190900324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b20195dfc2934291fb3f69d94009acd3df329daf5ef7fc4dabbabff8d43911d. 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/INR190900325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f5811c24c4dbc1f3c9739b235ff6bce9616d44739cd957a798b68b37d5c5da. 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/INR190900330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea64083ad030a80d82950a882de181c49e60aaf8b9cf971e1bd5eb93e35a37c. 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/INE181702085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ee02ce6c1ec71d594c005a370e3ab1ede281e4b803e3cd05143a076b7349c6. 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/INE181706885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c608eca581d5f21e1ff45f9c26827421c9f13a35e65793ce48a3089f5f8ff48. 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/INE181706886.
Chirosakha He (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e50c981fac76346efd57a7e65568b45a290e0b86dcbd5839733cc011798c0e. 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/INH100506409.
Uraan (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423e13cb1880260e16825d2c8262224706f01cecfeef87f369cfe0261db0085f. 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/INA791501188.