Zack Laurence
type: MusicGroup
popularity: 4
followers: 196
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30894b3103830e386acde230bb3ff64cf00b4c86625ed41cb32a50747071c628
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953885
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953885
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0c63370d-a345-4fff-855a-c944146147fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0c63370d-a345-4fff-855a-c944146147fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0c63370d-a345-4fff-855a-c944146147fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:12:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30894b3103830e386acde230bb3ff64cf00b4c86625ed41cb32a50747071c628","name":"Zack Laurence","registered_at":"2026-06-15T17:42:02Z","symbol":"NIM0783206","token_address":"0xe60dbaea419aa8a04148a45856376fc864a62c44","type":"artist","uuid":"0c63370d-a345-4fff-855a-c944146147fc"}
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 0x30894b3103830e386acde230bb3ff64cf00b4c86625ed41cb32a50747071c628. 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/0c63370d-a345-4fff-855a-c944146147fc.json and https://artists.proofprofile.net/proofs/artist/0c63370d-a345-4fff-855a-c944146147fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x30894b3103830e386acde230bb3ff64cf00b4c86625ed41cb32a50747071c628","name":"Zack Laurence","registered_at":"2026-06-15T17:42:02Z","symbol":"NIM0783206","token_address":"0xe60dbaea419aa8a04148a45856376fc864a62c44","type":"artist","uuid":"0c63370d-a345-4fff-855a-c944146147fc"}
album: Bruton BRN8: Expanding Horizons
  type: MusicAlbum
  date published: 1981-12-31
album: Bruton BRN13: New Prospects
  type: MusicAlbum
  date published: 1984-12-31
album: Reflections
  type: MusicAlbum
  date published: 1987-11-15
album: The Singalong Piano Of Zack Laurence
  type: MusicAlbum
  date published: 2000-01-01
album: Living Landscapes
  type: MusicAlbum
  date published: 2002-07-16
album: The Zack Laurence Anthology
  type: MusicAlbum
  date published: 2015-04-30