{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How long do I need to wait when calling the getLatestBlockhash RPC API to ensure the transaction doesn't expire?","a":"When calling the getLatestBlockhash RPC API, you usually don't need to wait for too long, as the response time of this API is relatively fast. However, to ensure that transactions don't expire, you can decide how long to wait based on the confirmation time of the blockchain network. For example, on the Ethereum network, you can wait for 15 to 20 block confirmations to ensure that the transaction  won't expire in a short period. Please note that the waiting time may vary due to the confirmation speed of different networks. When conducting transactions, it is recommended to consult the documentation of the specific blockchain network to understand the appropriate confirmation waiting time."}]}],"pr":"ac36e2503bbe935c38b291819e579da34199f158402e2cb808347d566fb76309"}