Jacco Befhoven
type: MusicGroup
popularity: 11
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f91677207a5fe662fcd6f6dbedad6c8cecf75f34263ca1baab317a5ca1afd5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbc08c19-e4ff-41b9-8dd9-360defe25716.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbc08c19-e4ff-41b9-8dd9-360defe25716.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbc08c19-e4ff-41b9-8dd9-360defe25716
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f91677207a5fe662fcd6f6dbedad6c8cecf75f34263ca1baab317a5ca1afd5d","name":"Jacco Befhoven","registered_at":"2026-06-15T03:35:03Z","symbol":"NIM0669358","token_address":"0x5a0d5285dbe21fbda13538ad33c1d369aff5f95f","type":"artist","uuid":"dbc08c19-e4ff-41b9-8dd9-360defe25716"}
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 0x3f91677207a5fe662fcd6f6dbedad6c8cecf75f34263ca1baab317a5ca1afd5d. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbc08c19-e4ff-41b9-8dd9-360defe25716.json and https://artists.proofprofile.net/proofs/artist/dbc08c19-e4ff-41b9-8dd9-360defe25716.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0x3f91677207a5fe662fcd6f6dbedad6c8cecf75f34263ca1baab317a5ca1afd5d","name":"Jacco Befhoven","registered_at":"2026-06-15T03:35:03Z","symbol":"NIM0669358","token_address":"0x5a0d5285dbe21fbda13538ad33c1d369aff5f95f","type":"artist","uuid":"dbc08c19-e4ff-41b9-8dd9-360defe25716"}