Ferdausi Rahman
type: MusicGroup
description: Ferdausi Rahman (; born 28 June 1941) is a Bangladeshi playback singer. She sang some popular film songs for Pakistani films also in the 1960s especially working with the music composer Robin Ghosh in
popularity: 2
followers: 854
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x496e14e16584bd1a79916b6f2c144773cafd81299c80c58b6430b98a7569565b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a34675d-8343-4028-beb2-ecb52cbf872e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a34675d-8343-4028-beb2-ecb52cbf872e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8a34675d-8343-4028-beb2-ecb52cbf872e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x496e14e16584bd1a79916b6f2c144773cafd81299c80c58b6430b98a7569565b","name":"Ferdausi Rahman","registered_at":"2026-06-17T13:49:49Z","symbol":"NIM1414912","token_address":"0x62bfff789f2df3a9b1e67a797c138b77e811676a","type":"artist","uuid":"8a34675d-8343-4028-beb2-ecb52cbf872e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e14e16584bd1a79916b6f2c144773cafd81299c80c58b6430b98a7569565b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a34675d-8343-4028-beb2-ecb52cbf872e.json and https://artists.proofprofile.net/proofs/artist/8a34675d-8343-4028-beb2-ecb52cbf872e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x496e14e16584bd1a79916b6f2c144773cafd81299c80c58b6430b98a7569565b","name":"Ferdausi Rahman","registered_at":"2026-06-17T13:49:49Z","symbol":"NIM1414912","token_address":"0x62bfff789f2df3a9b1e67a797c138b77e811676a","type":"artist","uuid":"8a34675d-8343-4028-beb2-ecb52cbf872e"}
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