Muthiah Sathappan Chettiar, better known as Kannadasan (; 24 June 1927 – 17 October 1981), was a poet, film song lyricist, producer, actor, script-writer, editor, philanthropist, and is heralded as on
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 0x2214256a6c74261858b255d0cfb59195d57186f1cd6da8eff15d00b25ecb837d. 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/9fa5ff8e-b40c-46c8-8e04-a74171b6182f.json and https://artists.proofprofile.net/proofs/artist/9fa5ff8e-b40c-46c8-8e04-a74171b6182f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sumathi Yen Sundari (Original Motion Picture Soundtrack)
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 0x73e0497e80a1e0cc2b2af3a0c7556afccaf9f90b47aeb82c94c3663a8b636573. 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/INH100222120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe899b198c2f7af38579e4bca21a5975d01450d1dde97c18de088bae851f4a8e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INH100222130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf368df6773400184b5bfa9c74272bd51db1c91efe077f8af4234f16b08340d07. 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/INH100631486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da812a3ddcf440aeab1c4533b041832c93f9c5efbe139de7b8b8650c8516671. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/IND292000333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa11781efee46469e1c50197e3fd0044eeb19e50acb4b946ee3d321493b572b. 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/IND292000335.
Pithamagan (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70938185729358848ba5347d35e00c166d288a315b986c7293d0223ce3fdcfa8. 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/INF040300553.
Ullathil Nalla Ullam - Slowed and Reverbed
Ullathil Nalla Ullam (Slowed and Reverbed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610adc06b597326fd63b8231e41a2d18fd2c1bbb72f4bae2871077a34a09368b. 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/INH102312770.
Chittu Kuruvi Mutham Koduthu - Slowed and Reverbed
Chittu Kuruvi Mutham Koduthu (Slowed and Reverbed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bfe34e57e7e22365e17a482b0dd7c68470cd99729d5a5335773b2975aa86ad. 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/INH102317977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f52b4cb422d0f9bedead2e88bd31cd40a18115e6a26466de49497805269d306. 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/INH102310351.
Bhagyalakshmi (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9916d8d6adbfb255f24a66a990e3eacadad75e14590a7f3effd4165285185a25. 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/INH100072420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10674da1fddead8fccef82e65658fdff204823fa9d1955ff74b49d71746441ea. 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/INH100219580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad742ca964d323758d021be72d19c8358992c88cb8a3b017539fd05111b573ce. 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/INH100624305.