Preservation Coverage Visualizer


Can also search for releases (eg, individual papers) or containers (eg, journals).
15,145,074
Known Releases
10,995,670 72.61% preserved and publicly accessible (bright)
2,342,455 15.47% preserved but not publicly accessible (dark)
1,806,949 11.94% no known independent preservation


Perpetual Access Coverage by Year



Perpetual Access Coverage by Release Type

Release Type Total Count Coverage
article-journal 13,070,911
article 2,058,638
paper-conference 15,525