Victor Lau
type: MusicGroup
genre: c-pop
popularity: 14
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x684acade41447c15e4f69afe80eec9a2a416b401c5d9c8232ec49d3e1e4cf047
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7870cb58-27aa-498b-af4f-5c700fee751f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7870cb58-27aa-498b-af4f-5c700fee751f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7870cb58-27aa-498b-af4f-5c700fee751f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x684acade41447c15e4f69afe80eec9a2a416b401c5d9c8232ec49d3e1e4cf047","name":"Victor Lau","registered_at":"2026-06-14T17:08:17Z","symbol":"NIM0519800","token_address":"0x712253ed3ea59d5cd3faecdc440c2a98f939bae1","type":"artist","uuid":"7870cb58-27aa-498b-af4f-5c700fee751f"}
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 0x684acade41447c15e4f69afe80eec9a2a416b401c5d9c8232ec49d3e1e4cf047. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7870cb58-27aa-498b-af4f-5c700fee751f.json and https://artists.proofprofile.net/proofs/artist/7870cb58-27aa-498b-af4f-5c700fee751f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x684acade41447c15e4f69afe80eec9a2a416b401c5d9c8232ec49d3e1e4cf047","name":"Victor Lau","registered_at":"2026-06-14T17:08:17Z","symbol":"NIM0519800","token_address":"0x712253ed3ea59d5cd3faecdc440c2a98f939bae1","type":"artist","uuid":"7870cb58-27aa-498b-af4f-5c700fee751f"}
album: 绅士
  type: MusicAlbum
  date published: 2014-01-18
album: Victor 劉偉德 同名專輯
  type: MusicAlbum
  date published: 2014-04-17
album: Victor 劉偉德 同名專輯
  type: MusicAlbum
  date published: 2014-04-17
album: Victor 劉偉德 同名專輯
  type: MusicAlbum
  date published: 2014-04-25