Supriya Chowdhury
type: MusicGroup
genre: bangla pop
popularity: 2
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbea4ab39946a70ee80b6754d159a8f86c597d8113bbe790f9d770186a8c5d2d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c4662ba-c89d-4be1-a98d-e38b2307aaa4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c4662ba-c89d-4be1-a98d-e38b2307aaa4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c4662ba-c89d-4be1-a98d-e38b2307aaa4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbea4ab39946a70ee80b6754d159a8f86c597d8113bbe790f9d770186a8c5d2d5","name":"Supriya Chowdhury","registered_at":"2026-06-17T08:59:52Z","symbol":"NIM1345833","token_address":"0xc33c085b343b3365b7e7bb6d545a9b9bed9ce734","type":"artist","uuid":"7c4662ba-c89d-4be1-a98d-e38b2307aaa4"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea4ab39946a70ee80b6754d159a8f86c597d8113bbe790f9d770186a8c5d2d5. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c4662ba-c89d-4be1-a98d-e38b2307aaa4.json and https://artists.proofprofile.net/proofs/artist/7c4662ba-c89d-4be1-a98d-e38b2307aaa4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:07:14Z
  text: {"copyright_id":"0xbea4ab39946a70ee80b6754d159a8f86c597d8113bbe790f9d770186a8c5d2d5","name":"Supriya Chowdhury","registered_at":"2026-06-17T08:59:52Z","symbol":"NIM1345833","token_address":"0xc33c085b343b3365b7e7bb6d545a9b9bed9ce734","type":"artist","uuid":"7c4662ba-c89d-4be1-a98d-e38b2307aaa4"}