Iman Halder
type: MusicGroup
popularity: 5
followers: 391
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0b7cffb7293850eda0f4a7964eccf63b719c35d5c1cf763e668862ea7965b29
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9698a42-b49a-4abc-a74e-142a555aeb50.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9698a42-b49a-4abc-a74e-142a555aeb50.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9698a42-b49a-4abc-a74e-142a555aeb50
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc0b7cffb7293850eda0f4a7964eccf63b719c35d5c1cf763e668862ea7965b29","name":"Iman Halder","registered_at":"2026-06-20T16:02:46Z","symbol":"NIM1649394","token_address":"0x5b07743e11ab3b16be1df7263fc082b4a887a9c9","type":"artist","uuid":"b9698a42-b49a-4abc-a74e-142a555aeb50"}
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 0xc0b7cffb7293850eda0f4a7964eccf63b719c35d5c1cf763e668862ea7965b29. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9698a42-b49a-4abc-a74e-142a555aeb50.json and https://artists.proofprofile.net/proofs/artist/b9698a42-b49a-4abc-a74e-142a555aeb50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xc0b7cffb7293850eda0f4a7964eccf63b719c35d5c1cf763e668862ea7965b29","name":"Iman Halder","registered_at":"2026-06-20T16:02:46Z","symbol":"NIM1649394","token_address":"0x5b07743e11ab3b16be1df7263fc082b4a887a9c9","type":"artist","uuid":"b9698a42-b49a-4abc-a74e-142a555aeb50"}
album: Tagore on Esraj
  type: MusicAlbum
  date published: 2022-05-24