Why can't a phone talk directly peer-to-peer?

Network nodes, forming the Splitchain network, are necessary for reliable peer-to-peer communication uptime in case your phone goes offline.

They are also crucial to avoid double-spending, which is when users attempt to spend the same coin twice.

This is achieved by finding "truths" even after you have transacted with a person.

Truths are signed proofs of a transaction, from both the sender and the receiver.