Dj Jeroen Laven
type: MusicGroup
popularity: 12
followers: 199
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43e4838fd38f3f3517d46c56b62791315a0dbe390cc2552615f93d51acc84649
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c578b3c-2dd3-473d-971b-095e06ec3e72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c578b3c-2dd3-473d-971b-095e06ec3e72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c578b3c-2dd3-473d-971b-095e06ec3e72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43e4838fd38f3f3517d46c56b62791315a0dbe390cc2552615f93d51acc84649","name":"Dj Jeroen Laven","registered_at":"2026-06-14T10:52:38Z","symbol":"NIM0430165","token_address":"0xc8864608c75dee818794150c651cedde91b14ea4","type":"artist","uuid":"3c578b3c-2dd3-473d-971b-095e06ec3e72"}
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 0x43e4838fd38f3f3517d46c56b62791315a0dbe390cc2552615f93d51acc84649. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c578b3c-2dd3-473d-971b-095e06ec3e72.json and https://artists.proofprofile.net/proofs/artist/3c578b3c-2dd3-473d-971b-095e06ec3e72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:54:28Z
  text: {"copyright_id":"0x43e4838fd38f3f3517d46c56b62791315a0dbe390cc2552615f93d51acc84649","name":"Dj Jeroen Laven","registered_at":"2026-06-14T10:52:38Z","symbol":"NIM0430165","token_address":"0xc8864608c75dee818794150c651cedde91b14ea4","type":"artist","uuid":"3c578b3c-2dd3-473d-971b-095e06ec3e72"}
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