Arnab Chakraborthy
type: MusicGroup
popularity: 2
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6897773019e3b698c7e6673e2d1f7431b8856c805b8b389428a173453f45acf8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adac7e7f-31e6-4d4c-bc1a-a3d69a680c33.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adac7e7f-31e6-4d4c-bc1a-a3d69a680c33.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adac7e7f-31e6-4d4c-bc1a-a3d69a680c33
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6897773019e3b698c7e6673e2d1f7431b8856c805b8b389428a173453f45acf8","name":"Arnab Chakraborthy","registered_at":"2026-06-20T10:53:50Z","symbol":"NIM1595327","token_address":"0xeaaba5157dfceb69b8842c9ebccb8bb92961d819","type":"artist","uuid":"adac7e7f-31e6-4d4c-bc1a-a3d69a680c33"}
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 0x6897773019e3b698c7e6673e2d1f7431b8856c805b8b389428a173453f45acf8. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adac7e7f-31e6-4d4c-bc1a-a3d69a680c33.json and https://artists.proofprofile.net/proofs/artist/adac7e7f-31e6-4d4c-bc1a-a3d69a680c33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0x6897773019e3b698c7e6673e2d1f7431b8856c805b8b389428a173453f45acf8","name":"Arnab Chakraborthy","registered_at":"2026-06-20T10:53:50Z","symbol":"NIM1595327","token_address":"0xeaaba5157dfceb69b8842c9ebccb8bb92961d819","type":"artist","uuid":"adac7e7f-31e6-4d4c-bc1a-a3d69a680c33"}