Dilshad Khan
type: MusicGroup
description: Dilshad Khan (born Arabinda Dasgupta) is a Hindustani classical singer and the husband of Parween Sultana. Khan is the younger brother of sarod musician Buddhadev Das Gupta. Early life and background
popularity: 3
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2dcdb5ab8481d2217b3fc7110b52719c9a870b36708f7566f87fb19d8a2f26e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42c0f6e1-d0de-435a-9e47-dac1a05b8ab9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42c0f6e1-d0de-435a-9e47-dac1a05b8ab9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/42c0f6e1-d0de-435a-9e47-dac1a05b8ab9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2dcdb5ab8481d2217b3fc7110b52719c9a870b36708f7566f87fb19d8a2f26e","name":"Dilshad Khan","registered_at":"2026-06-16T13:07:34Z","symbol":"NIM1061391","token_address":"0x3d81ec446127d2f6886c6ab1335ef2ebcca6b0d8","type":"artist","uuid":"42c0f6e1-d0de-435a-9e47-dac1a05b8ab9"}
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 0xd2dcdb5ab8481d2217b3fc7110b52719c9a870b36708f7566f87fb19d8a2f26e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42c0f6e1-d0de-435a-9e47-dac1a05b8ab9.json and https://artists.proofprofile.net/proofs/artist/42c0f6e1-d0de-435a-9e47-dac1a05b8ab9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xd2dcdb5ab8481d2217b3fc7110b52719c9a870b36708f7566f87fb19d8a2f26e","name":"Dilshad Khan","registered_at":"2026-06-16T13:07:34Z","symbol":"NIM1061391","token_address":"0x3d81ec446127d2f6886c6ab1335ef2ebcca6b0d8","type":"artist","uuid":"42c0f6e1-d0de-435a-9e47-dac1a05b8ab9"}