HLau
type: MusicGroup
genre: cantopop
popularity: 3
followers: 454
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8c0e551e75aae89ef30e5d41a13d99711e3200bab1b5e5edc6dad10600d6048
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16c2e922-6149-47fb-a236-8845cffd8c5f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16c2e922-6149-47fb-a236-8845cffd8c5f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/16c2e922-6149-47fb-a236-8845cffd8c5f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
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 0xd8c0e551e75aae89ef30e5d41a13d99711e3200bab1b5e5edc6dad10600d6048. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16c2e922-6149-47fb-a236-8845cffd8c5f.json and https://artists.proofprofile.net/proofs/artist/16c2e922-6149-47fb-a236-8845cffd8c5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
album: Solo
  type: MusicAlbum
  date published: 2023-10-30
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  type: MusicAlbum
  date published: 2023-04-07
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  type: MusicAlbum
  date published: 2022-12-22
album: 慢慢滲
  type: MusicAlbum
  date published: 2022-06-10
album: 一圈
  type: MusicAlbum
  date published: 2022-04-11
album: 養一隻貓
  type: MusicAlbum
  date published: 2022-03-14
album: 天光該醒了
  type: MusicAlbum
  date published: 2021-07-24
album: 失落療程
  type: MusicAlbum
  date published: 2020-05-24
album: 面對面
  type: MusicAlbum
  date published: 2023-01-10