Kaptaan () is a 2016 India Punjabi action/courtroom drama film directed by Mandeep Kumar and starring Gippy Grewal, Monica Gill, and Karishma Kotak. The release date of the film was 20 May 2016. Cast
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 0x6828e064da0ea09ae5a928c4b267fed96fdb12e7d71886bc827286b3d5cc7083. 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/673b8886-586b-4481-9a84-c46ee1cff553.json and https://artists.proofprofile.net/proofs/artist/673b8886-586b-4481-9a84-c46ee1cff553.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 0x59ff1d7b0eba0075bdc65a3f6eb2831a2230bf4667334fc8361afab56394011e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/INM5C1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa993cb86567b5ecdd613cbab1d3eccd46783927f54a790b2ec66fed52b1fa9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/AUBEC2330094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d86f3416289e60414a5e3f6845c1906e1e657166eba3db022e7d9d386403b9. 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/DGA0M2321909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8165b4a70782537d5f958c201066f6c66f322c58a8cf01621ea9071e02dcd61. 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/DGA0M2321912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d43591efaf219b451dacc7dccf6ea6777b202e7e8f64a0b94e34b539221a786. 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/DGA082340283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf06695824dcd9f189606f5d7413a1c0690eb08481745e3bcd5d0faca782fda. 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/DGA0M2321914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd2e52d5ac8ac16489dbeadb2101cdde83a57abc8c55a788d56e0e58cf4fcaf. 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/DGA0M2321907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e67c2df507a75e17409e760366caa6da63207783c6a87728d50e6a6aea5b1b4. 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/DGA0M2321906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf145608829c4f1b14d0273953ccf60a6e8c851ca787a71a1b46fe0c0b63fdbb9. 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/DGA0M2321910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064145b71af9fcaf2f22966e3d37023f03956199949194d96fc1d2066c23c381. 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/FRX202285030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122ad464f53e682fa2dfa40a9e78c7a3ea04aa312f1235f803485f92c9be0b0a. 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/CBEGD2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddff4bb8f5a1ab9a26fb7d5d6c5d9d5c0afb45fefac27d13e8514bf0d82d833. 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/FR10S2274896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d3f6d4204e26b6b3a34d04eb8ce9494088b2d182559d94fa8ba49bf9965a23. 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/FR10S2274897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6abf4dfe6a3b9df2357e4ceee3a389b0a3d5e109995058e2f59790be33da9bd. 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/FRS182169626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d5ddea008ba228fdbf1ad8ea2caacaa469788201bfb9028aaddd783b6fb9a2. 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/FR10S2274899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae648c3a7ad6dbaed457fcf81aeea38d27b521be6fe2e33b776fbac34b3509b. 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/FRX452182113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5b4b3ef70ee8a56d2ec6ce9a3df2f4a52c48466692bae7ae8a81abb83c0eb5. 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/FRX452182117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca11d857f8aaf34f7041f81e0655045a844c08756ac112af4e149ccea9b27123. 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/FRX452182121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be0b6ec7d18fbfd98d9ea770e1dd0b42e39f51c56662608ab70bfba4bd86e81. 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/DGA072440418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fc361c1320de3ab44ddac6d893f06127318feb72850154905b6ac2a37bdf80. 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/FRX202445380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87183edf7e1785446b8b7817213a82603d92d3fe34dde91c05887500336a8479. 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/USA2P2360970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237d88c3312ebf0297355303018b82311f8ddfed6b0161c177f61c481805f4fe. 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/ING682200333.