Franzi van Houdt
type: MusicGroup
popularity: 9
followers: 106
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe60e77361fe47f0808da269bca6d45295a7f259f1375104da345149eaa421e94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954124
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b91f3a7-db80-412b-8321-f55f949477be.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b91f3a7-db80-412b-8321-f55f949477be.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b91f3a7-db80-412b-8321-f55f949477be
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:22:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe60e77361fe47f0808da269bca6d45295a7f259f1375104da345149eaa421e94","name":"Franzi van Houdt","registered_at":"2026-06-17T08:40:28Z","symbol":"NIM1341210","token_address":"0x61c9160f1a40e2eacebfed757af004bcda4eae5c","type":"artist","uuid":"7b91f3a7-db80-412b-8321-f55f949477be"}
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 0xe60e77361fe47f0808da269bca6d45295a7f259f1375104da345149eaa421e94. Chain 2 (Bitcoin): anchored in block 954124 (2026-06-17T18:22:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b91f3a7-db80-412b-8321-f55f949477be.json and https://artists.proofprofile.net/proofs/artist/7b91f3a7-db80-412b-8321-f55f949477be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T18:22:18Z
  text: {"copyright_id":"0xe60e77361fe47f0808da269bca6d45295a7f259f1375104da345149eaa421e94","name":"Franzi van Houdt","registered_at":"2026-06-17T08:40:28Z","symbol":"NIM1341210","token_address":"0x61c9160f1a40e2eacebfed757af004bcda4eae5c","type":"artist","uuid":"7b91f3a7-db80-412b-8321-f55f949477be"}
album: Next To Talent
  type: MusicAlbum
  date published: 2016-11-20
album: Endlich Zu Zweit
  type: MusicAlbum
  date published: 2023-05-24
album: Next To Me
  type: MusicAlbum
  date published: 2024-07-21