Lady Kash (born as Kalaivani Nagaraj, in 1990) is a Singaporean-Tamil rapper and songwriter. She founded the independent record label AKASHIK in 2013. In 2018, she collaborated with Poongani Amma 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 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 0x1d92e9c5d49a31d05b7695dc36ab8b738492a14f743edc75b7e8a42f4560aace. 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/93244a61-9ad3-4fc4-8dcf-8c6123a5c241.json and https://artists.proofprofile.net/proofs/artist/93244a61-9ad3-4fc4-8dcf-8c6123a5c241.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Neruppu Da (Cover Version) [From "Kabali"]
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 0x61c9679b6b04605c96fe46f814011bac4034569a2932a9ff67c4a3ecf486ab3b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZDA41826508.
Villupaattu (The Live Orchestral Version)
S3 Yamudu 3 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaac1949e4e1dfd10994bfb9ecb12c6731b95a0774c36caf72560f68b603ea39. 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/GBSGZ1501194.
Coffee With Kadhal (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0759df3281a425ac4dc3d4398f5ff93f8c918307b602e03829ba267913d5783b. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/FRX762297283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa376e3be44a55301f69bb40fc0daa34bee6ea0b824a600616fd10d71ceed7be. 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/INS172224309.
Kalla Kalavaani (From "Chekka Chivantha Vaanam")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c5cafd2d01746657c4a15f86ae08e7da71abf2e0cf53af5b6657e8aa07341d. 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/INS171806844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7c8f570cdd5834cc2226d20af2233f156cce8bd25ce2e9aeac69ccb4cde8fb. 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/GBSGZ1501187.
Engeyum Kadhal (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc7d70355ba39d4e63451366245e6bce7b28cd53fd03a6dfd5cd4228d5fa38b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INS171000381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b06cee8ee5ddb92a15aed2ec35dffc0ed41e345be6b1cb323a28ce748f7899. 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/MYUM81807116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b3bef60570d7b5f2e7bebcddcbcff619622b9dcfaaaea9d232ac27db44eb9c. 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/TCAFC2063860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a36bee3e86da9c7dac7fd54b1f5d81ace4e24c7d76f466572d1f1b029ee489. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INA091916715.
Chekka Chivantha Vaanam (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c5cafd2d01746657c4a15f86ae08e7da71abf2e0cf53af5b6657e8aa07341d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INS171806844.
Nawab (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245713053b28403d63c0897485a4e9b084ad956d64e596ff14bb9eb987d729a0. 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/INS171806905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa132a7f39e946c178260b26d0a7c456f5acde5dffefc2df028391dd7a86b6068. 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/INA441000128.
No No No (From "Miss Shetty Mr Polishetty")(Telugu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51f706d1ec2d33044b3d2ebcbc40b82d8731e41820580d837e767553dc6c5d1. 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/INA092318517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51f706d1ec2d33044b3d2ebcbc40b82d8731e41820580d837e767553dc6c5d1. 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/INA092318517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a36bee3e86da9c7dac7fd54b1f5d81ace4e24c7d76f466572d1f1b029ee489. 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/INA091916715.