To reference or cite the objects present in the Software Heritage archive, permalinks based on SoftWare Hash IDentifiers (SWHIDs) must be used. Select below a type of object currently browsed in order to display its associated SWHID and permalink.
swh:1:cnt:60d4fca773ada428b95f5a24ae73317e1363c9be
swh:1:dir:8ba0ca0978dd24ce138fe47ab1f59e02ee32e9b5
PENPATTERN outputs system-specific pen information.