What if one node is cheating?

+1 vote
When the data come from frontend side like web or mobile app through json-rpc, the command will be executed by only one node right? So is it possible if that node is trying to send a wrong data instead?
asked May 23, 2019 by Thayakorn

1 Answer

0 votes
The simple answer is that, yes, you need to trust the node whose API you are querying. That's why blockchains are designed to allow each participant to run their own node, so they don't need to rely on anyone else's.

If a particular participant is unable to run their own node, they could always query the API of several other nodes, and then check that everyone gave the same answer.
answered May 23, 2019 by MultiChain