Rupa Ganguly
type: MusicGroup
genre: bangla pop
popularity: 2
followers: 405
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74cf42525fcb7e050053e94ce57f9ba1e611237489b00f6cb6170a65db96569a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbd3edd7-7845-4611-ad9d-337ca47c2050.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbd3edd7-7845-4611-ad9d-337ca47c2050.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbd3edd7-7845-4611-ad9d-337ca47c2050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x74cf42525fcb7e050053e94ce57f9ba1e611237489b00f6cb6170a65db96569a","name":"Rupa Ganguly","registered_at":"2026-06-21T17:03:15Z","symbol":"NIM1981776","token_address":"0x09c360c53483528bc42326ecbc3bcb30a5fa8273","type":"artist","uuid":"fbd3edd7-7845-4611-ad9d-337ca47c2050"}
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 0x74cf42525fcb7e050053e94ce57f9ba1e611237489b00f6cb6170a65db96569a. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fbd3edd7-7845-4611-ad9d-337ca47c2050.json and https://artists.proofprofile.net/proofs/artist/fbd3edd7-7845-4611-ad9d-337ca47c2050.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x74cf42525fcb7e050053e94ce57f9ba1e611237489b00f6cb6170a65db96569a","name":"Rupa Ganguly","registered_at":"2026-06-21T17:03:15Z","symbol":"NIM1981776","token_address":"0x09c360c53483528bc42326ecbc3bcb30a5fa8273","type":"artist","uuid":"fbd3edd7-7845-4611-ad9d-337ca47c2050"}
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