# BOLT Authors - BOLT 04 - Onion Routing (Highlights) ![rw-book-cover|256](https://opengraph.githubassets.com/d308a01e72b5cdfacebceb6b14c7fe6ae0ee7b568d120abe99cc54e606e9da50/lightning/bolts) ## Highlights - The route is constructed by the origin node, which knows the public keys of each intermediate node and of the final node. ([View Highlight](https://read.readwise.io/read/01j43swv3535jv3tepwp9fbdwj)) ^752643972