{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the risks of blockchain upgrading?","a":"Consensus  risks: Blockchain upgrades may cause changes in the consensus mechanism, thereby affecting the security and stability of the network. For example, when transitioning from the proof of work (PoW) consensus mechanism to the proof of stake (PoS) consensus mechanism, attackers may exploit the transition."}]}],"pr":"50ff2084dd1d959b252f7bdf0df0e02d75f086cffbe9c80d2615cc2767d0ad3a"}