hash algorithm: blake2b-256
body:
  given name: Ryan Williams (CIP-0169 Preview Example)
  objectives: Updated profile: demonstrate CIP-0169 on-chain binding for DRep update certificates on the Preview testnet.
  motivations: Setting a metadata anchor on a previously anchor-less DRep registration.
  qualifications: Author of CIP-0169; registered DRep on the Preview testnet.
  on chain:
    tag: update_drep
    drep credential:
      tag: pubkey_hash
authors:
  name: Ryan Williams
  witness:
    witness algorithm: ed25519