Nice to meet you.
I want to know about the availability and distribution of IPFS.
For example, if you build an IPFS node yourself and do “ipfs add” from that node
Unless other nodes do “ipfs cat” and download, I think that it will not be distributed save actually.
In other words, even if node A add file x with "“ipfs add”, file x is exists only node A,
File x is not exist at other nodes at this point.
And if node A deletes file x with “pin rm” and “block rm”, file x will be lost on the IPFS network.
Is this understanding correct?
Also, upload the file via infura.io getway, then if no one download with “ipfs cat”, will that file disappear?