Howard The Duckz
type: MusicGroup
popularity: 7
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06cc4fb86d443560e47d24d63ff70fa1ab18038f70a63d6f22c2d0a35932daee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb3cc7f3-17a3-4c14-91ff-7a255675e7f2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb3cc7f3-17a3-4c14-91ff-7a255675e7f2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb3cc7f3-17a3-4c14-91ff-7a255675e7f2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x06cc4fb86d443560e47d24d63ff70fa1ab18038f70a63d6f22c2d0a35932daee","name":"Howard The Duckz","registered_at":"2026-06-21T17:07:03Z","symbol":"NIM1982218","token_address":"0x9a856276750b339bce60e89b33dd069d218a1ddf","type":"artist","uuid":"fb3cc7f3-17a3-4c14-91ff-7a255675e7f2"}
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 0x06cc4fb86d443560e47d24d63ff70fa1ab18038f70a63d6f22c2d0a35932daee. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb3cc7f3-17a3-4c14-91ff-7a255675e7f2.json and https://artists.proofprofile.net/proofs/artist/fb3cc7f3-17a3-4c14-91ff-7a255675e7f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x06cc4fb86d443560e47d24d63ff70fa1ab18038f70a63d6f22c2d0a35932daee","name":"Howard The Duckz","registered_at":"2026-06-21T17:07:03Z","symbol":"NIM1982218","token_address":"0x9a856276750b339bce60e89b33dd069d218a1ddf","type":"artist","uuid":"fb3cc7f3-17a3-4c14-91ff-7a255675e7f2"}