Tanvi Shah () is an Indian singer and songwriter from Chennai, Tamil Nadu, India. She sings in the Tamil, Hindi, and Telugu languages. Her first song was "Yakkai Thiri" for the 2004 film Aayutha Ezhut
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 0x443d4634b8744c5075e6488d254ff6a2cd65c76919d39e0490a57567a2c8b275. 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/160a5cd5-78b5-476a-b01e-8da50960402a.json and https://artists.proofprofile.net/proofs/artist/160a5cd5-78b5-476a-b01e-8da50960402a.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 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 0x83587b48941224d833e1ffe9951172b1a2c1b76505775d80394bfa7b6742edfb. 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/INS171100454.
Pappu Can't Dance (From "Jaane Tu... Ya Jaane Na")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4834318b02d4760a4cddbaab6c7725fa98f0223889900af7492ff3223b0034e7. 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/INS180804910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee91395a198053c581f4a60c7fbacdcabc3a9fad8e6920590a8b89757f5601d. 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/INS180900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4834318b02d4760a4cddbaab6c7725fa98f0223889900af7492ff3223b0034e7. 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/INS180804910.
Playback: Dance Machi Dance - The Ultimate Tamil Dance Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e50181a9d7ad7eef0108f37ee86b2f236dba348fba37ec9d48c974eeda85b. 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/INS171200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc15420ed041c907dc8ae9e07ead8c953e891b3f82339350a6ca91c7ee30825f. 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/INS171300950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d59e050d2514e3582921cf65b11c6d42092e7cf8b1fc802a4e924751c95f1e. 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/INS171100518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83587b48941224d833e1ffe9951172b1a2c1b76505775d80394bfa7b6742edfb. 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/INS171100454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21812b5f55173d8229d29a18249be563b370ae97ac83c4579c4892af5aeca1fa. 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/INS280500610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e50181a9d7ad7eef0108f37ee86b2f236dba348fba37ec9d48c974eeda85b. 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/INS171200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe85a7571dd0e3605d449eca6f9cca8ac1b37ad34c25d65d8500d3a41f6b55cc. 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/INS170910007.
Biriyani (Telugu) (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b130f254cb60dfc2fcbfba64ce0cbe11a26257ac83548c920dcb848ca4e2df2. 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/INS171301512.
Biriyani (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f68a9d5832a4237c334fa92918cd03d0783cb65ae7e5553786786f578cb77e3. 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/INS171300601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e50181a9d7ad7eef0108f37ee86b2f236dba348fba37ec9d48c974eeda85b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS171200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4526521cc62647ade50ca39ebf318addf485717168b04cd81cd3cf2debf1ed54. 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/INS392309141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd581d7bc2eb75733f69edcf558e57d71785f9e33bb69b45c0633f572f75ca45e. 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/INS392204127.