Preservation Coverage Visualizer


Can also search for releases (eg, individual papers) or containers (eg, journals).
15,031,855
Known Releases
10,407,846 69.24% preserved and publicly accessible (bright)
2,282,286 15.19% preserved but not publicly accessible (dark)
2,341,723 15.58% no known independent preservation


Perpetual Access Coverage by Year



Perpetual Access Coverage by Release Type

Release Type Total Count Coverage
article-journal 12,576,779
article 2,440,795
paper-conference 14,281