Tony Kakkar (born 9 April 1984) is an Indian singer known for his cringe pop songs. He made his debut in Bollywood in 2012, as a music director with the film Mr. Bhatti on Chutti, for which he compose
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 0x34e5f33de6091bf45496cc17cce82da0a8cdc8ff2b1ce32a1593c0abb6c02f05. 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/0ce5b0bd-689c-4c52-857c-11cfcf2f860d.json and https://artists.proofprofile.net/proofs/artist/0ce5b0bd-689c-4c52-857c-11cfcf2f860d.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 0x17615ec73b513d136690db43a650a101a05ce808ed6fe5d5754e898d4a497fbe. 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/INE182225071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60d3666c7c43f268d13cc4a746944eca61566216f2db26046bbaea7f8f0ff59. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/INH102408434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa96da1575d5a0469cfa9e4a26aa70bab8056261c4f8d379d114dc224f74723. 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/INH102405872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c162c7f403e670d1f31ac45dee25f304702ad9dc6a7d3bb6529fb3476270c7. 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/INS181600531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64af13fc9bfe94e8f0ed02ec18f92505ede63045f9c6c7bb00a373024cb8f303. 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/USA2P2327114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917a0325059342bc76cc1e3a12da2c740d278fb9156606d2409be464c5d770a. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/INGC12303444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7422820c605151cc737bb6301a0e08293f87c965d3c930862a45f3046e4c615. 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/INZ031401493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b5f8d38319bb1f692f413effba84b8ac33e8a4c967eb58ebebbdd279be7c07. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/USA2P2438904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c38584bc422f6099f2f48c1a9a4b1ff2c16f708bf7c084c17185cd238c5f27. 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/USA2P2437745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c9c2c3c9eb9726c1fbd7daeee187d16c91a8b05f546f8954ce0468d25e715a. 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/USA2P2416285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d69177a9480753d46e9a4e27ce80af385a17b5a636a7bf2e54199f428540577. 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/USA2P2413156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55667e5085672c7b75974b4870147381f5104996179daaf99b9456ee30a18209. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USA2P2413153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb018733adf5bf94f60b8c41ca230311b1ed4b138067137c7ca41d88bdf56fa. 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/INS182400387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ed9b4ce6a02d47e0c5495032bc5a79a0cb132b68b9fed5255c09783ebee867. 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/USA2P2358493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4bbdccf3bdff1de9ccbf1be45332c7d4d95c57d7ea385795d2316fc6d1b1c9. 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/USA2P2344237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8952b06f6b05ca86d4eeeca20537bf3587007ec3d40256ac2e159083c5147a. 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/INS182301558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a59a7b342610e0bdd338ab736ca1404c83399e11542b78c39924417bbcd100. 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/USA2P2248197.
Ooh La La (From "Shubh Mangal Zyada Saavdhan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da2dd83fae4147ae315d36ac15b1c6eb5f3a569eea27e5c76a0ba979ac0a03b. 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/INS182000493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefe15dcfbb25d519d3bfe586cc43ac068747b340e77e395b2700fc547e8dbfb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/INZ031408794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd749c266b37945c67840fff3edb6ebc2e11ec28b9fba0779252d429ab592f446. 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/USA2P2349021.
Prague (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa244633d1a85b0fd788acd0e0750ad850ec52720bcd028708948af7c5ab2525f. 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/INC291300171.