{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain solve the issue of scalability?","a":"Blockchain solves the scalability issue mainly through two methods: First-layer (L1) expansion and second-layer (L2) expansion. L1 expansion involves optimizing the  basic protocol level, such as increasing block size, implementing sharding technology, and introducing stake-based consensus strategies. However, these substantial upgrades require coordinated cooperation between node operators, and it may take several years to complete the implementation. Meanwhile, L2 expansion involves transferring transactions off-chain, utilizing the security of the existing L1 blockchain to achieve faster and more cost-effective off-chain transactions. Data is summarized and settled on L1, but not always. For example,"}]}],"pr":"81117fe4b7833660940b3ba832846e940f6bf1a743090975127e161a99749983"}