Archie Chen
type: MusicGroup
popularity: 4
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x434dbbf196cf5c7962e20e4de5758bbde3b0a8f851a59b711e5b08e62f030205
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954115
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954115
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78b86c90-3e52-42bc-83b8-cb43ade7d9c4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78b86c90-3e52-42bc-83b8-cb43ade7d9c4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/78b86c90-3e52-42bc-83b8-cb43ade7d9c4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T15:44:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x434dbbf196cf5c7962e20e4de5758bbde3b0a8f851a59b711e5b08e62f030205","name":"Archie Chen","registered_at":"2026-06-17T07:43:36Z","symbol":"NIM1327656","token_address":"0x6987421804bb27258f8cd306f0ec83421e734dff","type":"artist","uuid":"78b86c90-3e52-42bc-83b8-cb43ade7d9c4"}
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 0x434dbbf196cf5c7962e20e4de5758bbde3b0a8f851a59b711e5b08e62f030205. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78b86c90-3e52-42bc-83b8-cb43ade7d9c4.json and https://artists.proofprofile.net/proofs/artist/78b86c90-3e52-42bc-83b8-cb43ade7d9c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x434dbbf196cf5c7962e20e4de5758bbde3b0a8f851a59b711e5b08e62f030205","name":"Archie Chen","registered_at":"2026-06-17T07:43:36Z","symbol":"NIM1327656","token_address":"0x6987421804bb27258f8cd306f0ec83421e734dff","type":"artist","uuid":"78b86c90-3e52-42bc-83b8-cb43ade7d9c4"}
album: F. Chopin: 4 Impromptus - F. Chopin: Piano Sonata No 3 in B Minor, Op. 58 - F. Chopin: Ballade No. 3 in a Flat Major, Op. 47 - F. Chopin: Scherzo No 2 in B-Flat Minor, Op. 31
  type: MusicAlbum
  date published: 2012-08-04