don't use a 3rd party to custody your coins. the point of bitcoin is self-sovereignty. By letting somebody else hold your keys you are defeating the purpose of bitcoin. Like others said you can store a seed phrase or key. You can get a hardware wallet. You can engrave onto titanium or steel plates.
Many nodes and miners (increasingly so) are operating on solar or hydroelectric energy. Theres even at least one node in space.
don't use a 3rd party to custody your coins. the point of bitcoin is self-sovereignty. By letting somebody else hold your keys you are defeating the purpose of bitcoin. Like others said you can store a seed phrase or key. You can get a hardware wallet. You can engrave onto titanium or steel plates.
Many nodes and miners (increasingly so) are operating on solar or hydroelectric energy. Theres even at least one node in space.
Bitcoin can also be sent over ham radio