{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the types of key pairs in a blockchain?","a":"There are two main types of keys in a blockchain: public keys and private keys. These are a pair of data keys for encryption and decryption, playing a crucial role in the blockchain network. Public keys are used to encrypt transaction information to ensure data security, while private keys are used to decrypt the information and verify the authenticity of the transaction. Additionally, in blockchain technology, there is an additional key called a witness key, which is used to validate and confirm  the generation of transaction blocks."}]}],"pr":"822dfc0a996f6ea1c3d8f8d3b4fdacda6886ff5a1fb129b0aa987c244094d8fe"}