NOSTR allows you to ‘self verify’ no need to get Elon’s permission for a blue check. If you control the internet domain you can get a verified address. I’m jessemarkowitz@yourpersonalcryptoassistant.com.

Different clients display your ‘verified address’ differently.

Lightning is way of sending bitcoin faster and cheaper.

Sats is short for Satoshis. It’s like cents in bitcoin. One US Dollar is equivalent to 100 cents. One Bitcoin is equivalent to 100 million Satoshis. Take a look at https://www.finder.com/satoshi-to-bitcoin-conversion-calculator

Notes is what gets posted on NOSTR. Like tweets on the service formerly known as Twitter.

Hope this helps!!!