{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the possible bumpy paths for a blockchain upgrade?","a":"Consensus issues: In the process of blockchain upgrading, adjustments to the consensus mechanism may encounter difficulties.  For example, when switching from the original proof of work (PoW) consensus mechanism to the proof of stake (PoS) consensus mechanism, compatibility issues may arise, resulting in failed upgrades."}]}],"pr":"9054f943cd2a9ee2da567283c577192806fb6c1361a4641abeaac68e0331e63e"}