{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the JavaScript tracking feature of a blockchain work?","a":"Secondly, a JavaScript library needs to be implemented to interact with the blockchain node. This library can  use WebSocket, HTTP, or other communication methods to communicate with the node. The library should contain the following features:↵↵   - Connecting to a blockchain node↵   -"}]}],"pr":"9ebba6596297e2a0113e04b070c15abca7dafa737513e845a5479055c56a2229"}