To assign value to a node it must be locked with funds from any asset you choose, eg. you load it with bitcoin, you may give someone the bitcoin public address of a node that you control, transfers to this address will be visible on the bitcoin blockchain. Exchanges between nodes are hidden.
Question. Purses of peer-to-peer now very much. For example, money comes to me, and I will not even know the sender? Or I need someone to transfer money. And how will the recipient know that this is money from me?