張瀚中、盧廣仲
type: MusicGroup
genre: c-pop
genre: tango
popularity: 9
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2c1d2412fa5fea73c7b7f5c53f0d665d3a634f570e6287133303a21d4bfa95f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7594b2c6-b736-4269-a83f-a25c1f68b424.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7594b2c6-b736-4269-a83f-a25c1f68b424.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7594b2c6-b736-4269-a83f-a25c1f68b424
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2c1d2412fa5fea73c7b7f5c53f0d665d3a634f570e6287133303a21d4bfa95f4","name":"張瀚中、盧廣仲","registered_at":"2026-06-17T06:33:57Z","symbol":"NIM1311078","token_address":"0xffedc7219256ac1b613405b1c06470002eef0ce1","type":"artist","uuid":"7594b2c6-b736-4269-a83f-a25c1f68b424"}
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 0x2c1d2412fa5fea73c7b7f5c53f0d665d3a634f570e6287133303a21d4bfa95f4. 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/7594b2c6-b736-4269-a83f-a25c1f68b424.json and https://artists.proofprofile.net/proofs/artist/7594b2c6-b736-4269-a83f-a25c1f68b424.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2c1d2412fa5fea73c7b7f5c53f0d665d3a634f570e6287133303a21d4bfa95f4","name":"張瀚中、盧廣仲","registered_at":"2026-06-17T06:33:57Z","symbol":"NIM1311078","token_address":"0xffedc7219256ac1b613405b1c06470002eef0ce1","type":"artist","uuid":"7594b2c6-b736-4269-a83f-a25c1f68b424"}