Fazlur Rahman Babu (born 22 August 1960) is a Bangladeshi actor and singer. He has won the Best Supporting Actor at Bangladeshi National Film Awards a record five times for his roles in Shonkhonaad (2
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 0x5eaba609b70415b483413fd42eb10ab17b6bdb3824cb1602d4f85ff4cca2d6f1. 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/7de41080-0fb1-4516-81e3-f60dcd752a5c.json and https://artists.proofprofile.net/proofs/artist/7de41080-0fb1-4516-81e3-f60dcd752a5c.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 0x5200acfcc46f86fc66fb799a0294886b29ce2f892f3e614d320901157693d420. 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/FR10S1735056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5203c7e54885ba51c1d999be0aa9177776a9da706950001b5cba605c773e476d. 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/FR10S1735057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3cd3212fcc29665d4794dc57c07d322814abbdea8724eea0c79db844bb5325. 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/FR10S1735058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390bc23f62b3753345ad635dd2d794f2826483fe8046d055fac45bed473bfd37. 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/FR10S1735059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ac4fe85b7ba5ccf283a70d65e6248273be54317f5c3c494b7b2fed03daaee4. 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/FR10S1735060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd445429502e879b9822a966cae85c47a27d0ec335d8629a2b168c9944163f7. 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/FR10S1735061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f22de4043dec4627f458af335a4b51882e3342733d382a533435586b23bdcda. 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/FR10S1735062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e3fd71dcf26943b902d4f920f3f66c61b869af9b172e24ad5f2a25a4336eb8. 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/FR10S1735063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842f79c507c2d9860dc5163c2ac68320783d590dd3981515ad37df30446dae7e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR96X2153322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9a43386a86230ddd2380f695a7669a750873ce92076af988df8b0f9a6b5e81. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZNC62206270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7e372f31fc1ac85522770dbc210dc285ec1541909970c6e9a375c5d904e82c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FRX282336504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2b4e683762feec0903b9d9bbd040a3e5927ba1949077abfba0034ac0fc3832. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA082340218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110c26798b92909b3d562fe233e369962574e20a2c1714a73cfd83c852f05234. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA0P2379593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd2ad23ac67b0c269c9d0e02b94d0dc8dcb7328c2f3219b21963d6d45b3ce6c. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/QZZ662355163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e8ee10906cf1ae9ca3ef04708b33f0a0e8eba3b5022f446ca69330bb0f12ae. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/HUDHU2520137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30de52bcb618882c20551908b7753d47b4105fcf01e8d9b5fc666e5711fdf43d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA052517465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb631f9268fcaf3aeda11c219ae71330a155bbb3a3e89a34361d98192f5d4f3d8. 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/DGA052560141.