H. P. Baxxter
type: MusicGroup
genre: synthpop
description: Hans Peter Geerdes (born 16 March 1964), professionally known by his stage name H. P. Baxxter, and sometimes by his nickname Dave, is a German musician best known as the lead vocalist of the German te
popularity: 8
followers: 274
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5d35e84b457cb2d7ee4881c898c13b7201dee9e88a7857ea6297518d7a5545a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9de92b22-1a13-4824-8ed5-6b093858a42a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9de92b22-1a13-4824-8ed5-6b093858a42a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9de92b22-1a13-4824-8ed5-6b093858a42a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa5d35e84b457cb2d7ee4881c898c13b7201dee9e88a7857ea6297518d7a5545a","name":"H. P. Baxxter","registered_at":"2026-06-20T04:42:30Z","symbol":"NIM1515061","token_address":"0x42f7632b18dcc408960439a0cd349c106ba3c7b3","type":"artist","uuid":"9de92b22-1a13-4824-8ed5-6b093858a42a"}
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 0xa5d35e84b457cb2d7ee4881c898c13b7201dee9e88a7857ea6297518d7a5545a. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9de92b22-1a13-4824-8ed5-6b093858a42a.json and https://artists.proofprofile.net/proofs/artist/9de92b22-1a13-4824-8ed5-6b093858a42a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xa5d35e84b457cb2d7ee4881c898c13b7201dee9e88a7857ea6297518d7a5545a","name":"H. P. Baxxter","registered_at":"2026-06-20T04:42:30Z","symbol":"NIM1515061","token_address":"0x42f7632b18dcc408960439a0cd349c106ba3c7b3","type":"artist","uuid":"9de92b22-1a13-4824-8ed5-6b093858a42a"}