Bolt: Anonymous Payment Channels for Decentralized Currencies

This looks very useful.

I noticed that an "anonymous underlying currency" is required for "Unidirectional payment channels" at the bottom of page 5. This is not required for the other techniques such as "Bidirectional payment channels".

Anyone read the paper and know if this means that I can transfer coin between wallets without the source or destination being visible on the opposite end?

https://angel.co/bolt ?

At first I thought there's no way, but it does look like the team has some bitcoin connections (eg former Buttercoin).

I assume the white paper is another riff on "lightning" (eg Blockchain's "Thunder")

Afaik there is lightning, thunder, raiden, and now bolt. That said, bolt looks pretty useful on first skim, and I wouldn't be surprised if it gets implemented for monero (I know the authors are the zcash authors, but on first skim looks applicable to any coin)

Nope. (I work there).