Muthuswami Dikshitar (, 24 March 1776 – 21 October 1835), mononymously known as Dikshitar, was a South Indian, Hindu poet, singer, veena player, and prolific composer of Indian classical music. 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 0x4c41464f17e71270c75d04704386391281e8ca39b3c0dbadbb601976c83b50cf. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acaf002d-26eb-4668-82ab-172f5e5f63a9.json and https://artists.proofprofile.net/proofs/artist/acaf002d-26eb-4668-82ab-172f5e5f63a9.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 0xd108fd760a06c4b6e918fb60dc761c3146309eb31e21e64588f912a6a7bc4ff1. 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/IND292200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e535c32681c055e25cd58cce1d07557cda12e1f291693dc7611978bd9c2ec7d. 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/IND292200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d8eb39cdce657d8c2c76a5412d66b74acfc94b4a8964f78c087364e80a04cd. 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/IND292200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846777ce2b7b0136e1b9b083de4096731d37214fbb61a353913e8a888e02685d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/IND292200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb84c2d7113b4a613d086111136d3b9276525c1f0221a409dc9fa4d06ef1a30. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/IND292200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c1ad9957afff957339a31aa77cfb5829160b82fa5c2fb56d68d163c142e1ad. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/IND292200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98b882df0f41b8ee46c4ed0293372f0e78c38cd256bd12e02b46f1e0e1a777b. 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/IND292200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8935de18b74dc9224b07082033c4640fa57ce1856b698d249e65c0ccfe8fa48. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/INK120800561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db4185f9f57e0f9304fc64c6884b91ede7ca3993422647594013cf7da25b9c0. 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/INK120800492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef38315a72df749146d1e0e73d92f87690ae257c5f7011d0846439c800d1c053. 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/INK120800355.
G.N.Balasubramaniam - Classical Live Concert Vol I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd479f909b8a71ff9fc80bba8484819fe770f7f41ba7e8975c4c93b4d3bb2b229. 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/IND291811226.
Quartet Genius - Songs Of Muthuswami Dikshitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751aa759f677837c6bb33f2e4dcf35092c3ff1127144ce3d20e63be81a76ad92. 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/INI119670730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b46af6e701a5a73a85532e982e3828cdcf7d6f97dd3a240515b84c3b2d5bff. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/INI119771430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fcd96a75cd6f6c4d67a086b349498933dfc6bcc4765f37965087a8466b1e2d. 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/INI119771760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8e54216aeef74fae03e38076b944aa2779c78dac5b54985afd9969a7294a8d. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/INI110047640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a144fd4757d4e050c4db05939fbe36b6a15ac00dfd000e67b36c845b9eb5a9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/INI110185860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3480e490415241b747d8aa029782a88419bf5d2b52afa06a729b2442625a9961. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/INI119973330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916eb3cbdfe70100225450aca504fcb88b0e67a2df34d24ed1068d9ecb3cb9a9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/INB562203098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd4ae35a08c8371ae74445ffdfd38d8591814c63488f260db945040cb79426c. 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/INM6N2022292.