Scholars Portal
1985-2025
Preserved
2025-09-02
Preserved : 29 (1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1 to 4); 34 (, 1 to 4); 35 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 4); 42 (, 1 to 4); 43 (, 1 to 4); 44 (, 1 to 4); 45 (, 1 to 4); 46 (, 1 to 4); 47 (, 1 to 4); 48 (, 1 to 4); 49 (, 1 to 4); 50 (, 1 to 4); 51 (, 4); 53 (, 1); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1, 3, 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1, 2, 4); 60 (, 1 to 4); 61 (, 1 to 3); 62 (, 1 to 4); 63 (, 1 to 4); 64 (, 1 to 5); 65 (, 1 to 5); 66 (, 1 to 5); 67 (, 1 to 5); 68 (, 1 to 5); 69 (, 1-2, 3); 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
Internet Archive
1956-2014
Preserved
2025-08-08
1 to 58
LOCKSS Archive
1985-2024
Preserved
2026-02-09
29 to 68
CLOCKSS Archive
1985-2025
Preserved
2026-02-09
29 to 69
LOCKSS Archive
2025-2025
In Progress
2026-02-09
69
Portico
2000-2026
Preserved
2026-02-12
Preserved : 2000: 44(1-4), 2001: 45(1-4), 2002: 46(1-4), 2003: 47(1-4), 2004: 48(1-4), 2005: 49(1-4), 2006: 50(1-4), 2007: 51(1-4), 2008: 52(1-4), 2009: 53(1-4), 2010: 54(1-4), 2011: 55(1-4), 2012: 56(1-4), 2013: 57(1-4), 2014: 58(1-4), 2015: 59(1-4), 2016: 60(1-4), 2017: 61(1-4), 2018: 62(1-4), 2019: 63(1-4), 2020: 64(1-5), 2021: 65(1-5), 2022: 66(1-5), 2023: 67(1-5), 2024: 68(1-5), 2025: 69(1-5), 2026: 70(1)
National Digital Preservation Program, China
1997-2024
Preserved
2025-12-04
Preserved : 5 (1 to 4); 6 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 5); 65 (1 to 5); 66 (1 to 5); 67 (1 to 5); 68 (1 to 5)
National Library of the Netherlands
1956-2008
Preserved
2024-12-15
Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1-4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (1-4); 51 (1-4); 52 (1-4)
Library of Congress
2010-2024
Preserved
2025-04-07
54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 5); 65 (1 to 5); 66 (1 to 5); 67 (1 to 5); 68 (1 to 5)