I have added the file to IPFS using “https://ipfs.infura.io:5001/api/v0/add”.
The doc says the added file is automatically pinned.
my question is that
is this guaranting that this file will always exist in IPFS forever?
is it removed from IPFS 6 months after the last access?
If the latter case is correct, should I use the “api/v0/pin/add” API if I want to keep the file persistently in IPFS no matter when that file is accessed?