{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the available backends for the keyring in blockchain?","a":"Hardware Wallet Backend: Stores private keys and certificates in secure hardware devices, such  as Trezor or Ledger."}]}],"pr":"fe6c43559c0d196b1b526f62e62308d62de726f8c578c93ad883de63321fb3a8"}