- How many times can you refill your LN channel?
A channel can be refilled as many times as a user wants. It works like a bank account or a prepaid card. Why should there be a refill limit?
- What’s the difference between Advertised and non-advertised channels?
The majority of lightning nodes (e.g. smartphones, user’s PCs) with an intermittent internet connection aren’t suitable for routing, in fact they are not visible in the lightning graph. These channels can still be used thanks to some routing “hints”. Even if not advertized, these nodes will probably be the ones used most, because they are the majority.
Advertized ones, are channels that want to be used for routing and earn fees.
- How does Buffer capital work?
In order for transactions to be routed through a channel, the channel must have enough capital to fulfill the requested amount. E.g. if Alice wants to send to Bob 0.1 BTC and the payment has to be routed trough Charly, Charly must have at least 0.1 BTC in the channel available to route the request.
- What is onion routing?
For multi-hope payments (where the payments must go through different channels to reach the destination) intermediate nodes in the payment path know only the identity of their immediate predecessor and successor in the route.