張武孝
type: MusicGroup
genre: cantopop
popularity: 2
followers: 194
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd48b6a89b43378287dbfefe989d1c52d9ddbf69ab774429a52a9942e3b1a21b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953848
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953848
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/013226b8-430d-4333-9cff-a7d24edbbeef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/013226b8-430d-4333-9cff-a7d24edbbeef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/013226b8-430d-4333-9cff-a7d24edbbeef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:54:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd48b6a89b43378287dbfefe989d1c52d9ddbf69ab774429a52a9942e3b1a21b0","name":"張武孝","registered_at":"2026-06-15T14:07:57Z","symbol":"NIM0732103","token_address":"0x6bf2342bfaa257ac1f11a368fa3aa04b1ec62d3f","type":"artist","uuid":"013226b8-430d-4333-9cff-a7d24edbbeef"}
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 0xd48b6a89b43378287dbfefe989d1c52d9ddbf69ab774429a52a9942e3b1a21b0. Chain 2 (Bitcoin): anchored in block 953848 (2026-06-15T22:54:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/013226b8-430d-4333-9cff-a7d24edbbeef.json and https://artists.proofprofile.net/proofs/artist/013226b8-430d-4333-9cff-a7d24edbbeef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:54:37Z
  text: {"copyright_id":"0xd48b6a89b43378287dbfefe989d1c52d9ddbf69ab774429a52a9942e3b1a21b0","name":"張武孝","registered_at":"2026-06-15T14:07:57Z","symbol":"NIM0732103","token_address":"0x6bf2342bfaa257ac1f11a368fa3aa04b1ec62d3f","type":"artist","uuid":"013226b8-430d-4333-9cff-a7d24edbbeef"}
album: 張武孝
  type: MusicAlbum
  date published: 1984-06-06