I can get content into ipfs just fine. Whats a mystery is how long I can expect it to stay around. I know that more requests will increase the lifetime, but what I'm looking for is a summary of the rules for expiration of content.
For example, if I 'ipfs add picture.jpg' (not pinned), how long does it stay available?
If someone requests picture.jpg, does that always mean the image has been copied to a remote ipfs server? What are the expire times for the copy of the picture on that server?
My use case is to keep metadata (a json blob) of each of the many cryptocoins out there, as a public reference for apps and tools that need it. Before I can think about doing that, I need to get a good idea of how long data stays in ipfs and after much looking, I havent found any FAQ or rules on this. Thanks!