Mike Hoorman
type: MusicGroup
popularity: 7
followers: 139
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa312b0df5da148bb5064890e354435ca87d2fd0a4a640e30b1400b0de35ad99b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a21e6707-6954-44c8-95c5-041b7b7b189c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a21e6707-6954-44c8-95c5-041b7b7b189c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a21e6707-6954-44c8-95c5-041b7b7b189c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa312b0df5da148bb5064890e354435ca87d2fd0a4a640e30b1400b0de35ad99b","name":"Mike Hoorman","registered_at":"2026-06-20T05:54:12Z","symbol":"NIM1532591","token_address":"0x3b728df4d8a1c99ca4acc76aa4d2577b75237226","type":"artist","uuid":"a21e6707-6954-44c8-95c5-041b7b7b189c"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa312b0df5da148bb5064890e354435ca87d2fd0a4a640e30b1400b0de35ad99b. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a21e6707-6954-44c8-95c5-041b7b7b189c.json and https://artists.proofprofile.net/proofs/artist/a21e6707-6954-44c8-95c5-041b7b7b189c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xa312b0df5da148bb5064890e354435ca87d2fd0a4a640e30b1400b0de35ad99b","name":"Mike Hoorman","registered_at":"2026-06-20T05:54:12Z","symbol":"NIM1532591","token_address":"0x3b728df4d8a1c99ca4acc76aa4d2577b75237226","type":"artist","uuid":"a21e6707-6954-44c8-95c5-041b7b7b189c"}
album: Opgelost
  type: MusicAlbum
  date published: 2025-01-12
album: Dat is te horen...
  type: MusicAlbum
  date published: 2025-06-01