Gulzar (born Sampooran Singh Kalra; 18 August 1934) is an Indian Urdu poet, lyricist, author, screenwriter, and film director known for his works in Hindi cinema. He is regarded as an important Urdu
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 0x2fb12613b3742a519edcde38f4de3fab11f39acee227a00335f8321e76ae0b3e. 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/2ce60705-e939-4268-a805-95848f08cded.json and https://artists.proofprofile.net/proofs/artist/2ce60705-e939-4268-a805-95848f08cded.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 0xcfc26699deea1135761c9672923d709c910d5e77e78fa1926d2f350d358670a1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INH101503142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120a0a832b6bb29e27f592399c5ad57a3d2d7a8572b99b7da499182927e81873. 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/INH101503144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577f8da1c76e3b3dcb0be43d9ab9e087dd778dd48127db92624f14a974cfcee1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/INH101503147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630f789845b8da67d8f521378df0e39d91ea535b5f66e4915152d370f58d28ea. 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/INH101503143.
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 0x8a0986f8001dad6d76e9510c351fb4bbea4f47b19fb4e319876f6e3742f00295. 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/INH101503145.
Bujh Gaya Tha Kyun Diya (with Narration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd00890153efdff157c240337e6838ded7bd2805c82b83f92a3897b692d43cb2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INH101503146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaea77dcb08138b0704f8fc3ff90e1c75c4fa2fa3e78260eecd27e13f4f76ab. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/INH101503148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebcb247a636e47119ca2951de7057d287d4389a3db6fec10996e6428fc1a902. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INY090200018.
Bol Na Halke Halke (From "Jhoom Barabar Jhoom")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58edec5acf14ccad4d653159a59ad07cc9ef285ea2f5ad9d7255664437dfa713. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/INY090700151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077320a19ab66f03797a01f2bd42a8946d91b91ea05d6e1d7de1f3aef8ae883e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INS182203841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263b33a8762419d76f78fdbb0e42526f75c91f4d518ea9f9064b679dc27910b6. 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/INS182300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cb89571305cc429cbbef484ec707f9ca52a2bb9a15f45912e3b5529294b6c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INS182300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8c7d265fe3374130663553ff6e3277996e4bd42986fa876fd078f4615c9ec4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INS182300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbece43e71fb1f16daa48686015c85df61af0171b90a5a4a8b2221e76f6f79165. 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/INS182300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16de138f2f67f47faafa15749228cdb4dafe68ae85f68368a6d29150cabf1e4c. 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/INS182300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937ad99436be1ac9a16bb7256a5bb06a3c2724f731036f2c5a576d08cf6adcf2. 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/INS182203877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2d6eeae26c768f5f83def4cea5a5639492fee86f04d5989ed5526728d7c411. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS170000109.