Manikka Vinayagam (10 December 1943 – 26 December 2021) was an Indian playback singer and actor. He sang for South Indian language films and acted in several Tamil films as a character artist. He was
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 0x320c36fff0ab9f77d42981426048f554c4eeddbfbed1bd682dec323e2fcb7448. 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/98ab2451-536b-4366-b29f-429cf3af8135.json and https://artists.proofprofile.net/proofs/artist/98ab2451-536b-4366-b29f-429cf3af8135.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 0x77f431e64d91e4ff74736508ce2f35ec7ab23a7ced1d3364fe8896b11c3e2e15. 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/INS120000589.
Swara Raga ? Sankarabharanam ? Adi ? Thyagaraja- Nadaswaram
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5123b4713f14c4f681c638204e8af9e25fb20362ec66c4a70e6013d55ede4d7. 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/INS120000591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb84ce72eca39b0d09eee85016ce837d4e8281e6e1a99d79bff33a820d1e291. 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/INS120602931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cd8613a124a464834da31a2c73e38fdcf629135558203912e1bc08e7074f0b. 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/INS120602933.
Siruthaya Seendadeda (From "Anbuthozhi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacce01d68920c49517b72da92d0ad97304d0111acb2e003099ac9a17d902472. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/INF040600786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0e447b6858e9924e8a8045eae283e77ba50e464f00e6e260f06f586004b688. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/INT131611510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b27d9f5e7a3a3e1e79bd8a5ee370e7b509339a9a842ff758260da65ccf9e8e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/INM8J2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa795073c5ffe5e5d8ee490713a3b3431d050df79127d08636ea4ebecb2cc3b68. 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/INF040200464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fdb84aecceb1b3f4c37e228f04b63099016cb6de0c9fb410e7cad72aa36fcd. 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/MYUM81505682.
Arupathu Ayidichu (From "Mounam Pesiyathe")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739412dbcf6273881aa08e69bc2741d315dd8c00687f5e2450f4a9989b34a8a9. 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/INN130200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46aa7ef7970fb7f09066db17dc58ff171c1a187da49a1393ec7ca163d46158f5. 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/MYUM81505688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739412dbcf6273881aa08e69bc2741d315dd8c00687f5e2450f4a9989b34a8a9. 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/INN130200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739412dbcf6273881aa08e69bc2741d315dd8c00687f5e2450f4a9989b34a8a9. 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/INN130200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81d3e408c2078f9fef970a6aaf4654541e1dd3bcf9f108107abca5b2caa380a. 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/INF040200469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81d3e408c2078f9fef970a6aaf4654541e1dd3bcf9f108107abca5b2caa380a. 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/INF040200469.