static.space is a universal content addressable index and store.
Index
static.space allows you to find a file anywhere on the internet by its digest (also known as a "hash" or "fingerprint"), and to create a permanent URL ("permalink") for any existing file.
In its simplest form, for each digest, static.space stores a list of URLs at which a file with that digest has been observed in the past. Since in general the original files pointed to by those URLs may change or disappear at any time, the list is updated as new copies of the file are found at new URLs.
Even if the original file is deleted or modified, a static.space URL will always display the same exact content, or nothing at all: static.space checks in real time that the digest of the file at one of the original URLs matches the digest in the static.space URL; if it does not, it will try the next URL in the list, until a match is found or the list is exhausted.
If all the URLs in the list are exhausted, the static.space URL will display an error message, but it will never display a different file than the one it was originally created for.
If at some point in the future the original file matching the digest is seen again at a previous or a new URL, the static.space URL will start displaying it again.
static.space works best for files that change infrequently. Indexing an arbitrary web page (e.g. a Wikipedia entry) is unlikely to produce a useful result, because the page will change too often.
Store
static.space now also allows you to directly upload new files and create a permanent URL for them.
First log in with your Google account, then click your username in the top right corner to see the list of your uploaded files and upload new ones.