Anurag Kumar was the Director of the Indian Institute of Science at Bangalore, India from 2014–2020. He is a professor at the Department of Electrical Communication Engineering, and has served as t
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b7a4108a44e04661375a4436e490c4cf063f2af0c2f29b41322220e764577d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5d36998-eea9-40d3-a230-cd983fa64038.json and https://artists.proofprofile.net/proofs/artist/d5d36998-eea9-40d3-a230-cd983fa64038.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434cbadf34e06d5b0b4728cc065d58dd06ab837fa8789643ed41278450d71d26. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IND832213609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aa3c11b284365e98353813935fd083b4682c0afcbbf72e41ee83eeec661347. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/IND832213716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00d2ddebc24ba3cc2d84aec464589a3fa10aa0622e2a437d25f095ec911b5a4. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/IND832213804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6391414fc052fbfcba99877251460413998e4434a2c81c041141f475484267. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/IND832216878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5223a940c61d35ed4770b75b0a87f47b937d5854ef1463fc21c098ebddfbf3a7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/IND832218288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb11f988fda5bf43fad72f27604fbf424e906592c1f5627f3d48ab7bca6bd37b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX89G2398978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5368cb10beafaeff0b6fa9b380c4a846af086b090eaf23e12b6659b0f5cfce7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/IND832301397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3793b73e85d0d798808553892faca391c4b250adb8e9f6a30eed321d617f598c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/INV862310890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82549e312c82cbf35421c8ce0718473e69349058821587f8d8e38b5290f3a8bc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/IND832303110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbec51c0b482539a949b36a04e1d0fee8c5a4d7640e2b22bbc55c4073c91212. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/IND832303640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300a507e4709238df202be6c58779125cc8bed1ef33dbb9b1458d686ebe60ca1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/IND832304853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142ddb86e8141ebe6d1a6644be09df70828775297c9bdb92573fce045778a774. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/INT632304035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b59347593f7473d5e0257ba213c887a6c69492836f08421e4503a5b3374f56. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/IND832402098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cb24b1f166f9ef06129af5f67bf9da3f9f19cbc6abf8752a8c2bfa9b57a046. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:01:00Z), 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/IND832402185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cba3a9c877a927eaf20a098def98e6e1c7470206fe3b9b8e7d9d26ea9259c82. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:53:11Z), 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/IND832402353.
Tora Bap Ke Nai Futai Chhau Awaj Beta Re Rangbaz Banai Chi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68d3e5cd09c669bcb69ff213048100878d95c93e6866aa8d4bf528b87fb5c59. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/IND832500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4857eb7f18335bfa2b576c809e4bcf00b03805f81efdb9ab12f428c912c7376. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/INH512031215.