Scholars Portal
1989-2025
Preserved
2025-09-02
Preserved : 1 (1); 2 (, 1); 3 (, 1); 4 (, 1); 5 (, 1, 2); 6 (, 1, 2); 7 (, 1, 2); 8 (, 1, 2); 9 (, 1, 2); 10 (, 1, 2); 11 (, 1, 2); 12 (, 1, 2); 13 (, 1, 2); 14 (, 1, 2); 15 (, 1 to 3); 16 (, 1, 2); 17 (, 1, 2); 18 (, 1, 2); 19 (, 1, 2); 20 (, 1, 2); 21 (, 1-2); 22 (, 1, 2); 23 (, 1, 2); 24 (, 1); 25 (, 1, 2); 26 (, 1, 2); 27 (, 2); 28 (, 1, 2); 29 (, 1, 2); 30 (, 1, 2); 31 (, 1, 2); 32 (, 1, 2); 33 (, 1, 2); 34 (, 1, 2); 35 (, 1, 2); 36 (, 1, 2); 37 (, 1); 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
LOCKSS Archive
1989-2024
Preserved
2026-02-09
1 to 36
CLOCKSS Archive
1989-2025
Preserved
2026-02-09
1 to 37
LOCKSS Archive
2025-2025
In Progress
2026-02-09
37
Portico
2011-2025
Preserved
2026-02-12
Preserved : 2011: 23(1-2), 2012: 24(1-2), 2013: 25(1-2), 2014: 26(1-2), 2015: 27(1-2), 2016: 28(1-2), 2017: 29(1-2), 2018: 30(1-2), 2019: 31(1-2), 2020: 32(1-2), 2021: 33(1-2), 2022: 34(1-2), 2023: 35(1-2), 2024: 36(1-2), 2025: 37(1-2)
National Digital Preservation Program, China
1997-2024
Preserved
2025-12-04
Preserved : 1 (1, 2); 2 (1, 2); 3 (1, 2); 9 (1, 2); 11 (1, 2); 12 (1, 2); 13 (1, 2); 14 (1, 2); 15 (1 to 3); 16 (1, 2); 17 (1, 2); 18 (1, 2); 19 (1, 2); 21 (1-2); 22 (2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2)
Library of Congress
2010-2024
Preserved
2025-04-07
22 (1, 2); 23 (1, 2); 24 (1, 2); 25 (1, 2); 26 (1, 2); 27 (1, 2); 28 (1, 2); 29 (1, 2); 30 (1, 2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2)