Scholars Portal
1970-2025
Preserved
2025-09-02
Preserved : 1 (2); 2 (, 1, 3 to 5); 3 (, 1 to 3, 5, 6); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 3); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 3, 4); 16 (, 1 to 4); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 5); 21 (, 1 to 5); 24 (, 3); 26 (, 5); 27 (, 4); 29 (, 4, 5); 33 (, 1, 5); 34 (, 1 to 4); 35 (, 3 to 5); 36 (, 1 to 5); 37 (, 1 to 5); 38 (, 1 to 5); 39 (, 1 to 5); 40 (, 1 to 5); 41 (, 1 to 5); 42 (, 1 to 5); 43 (, 1 to 5); 44 (, 1 to 5); 45 (, 1 to 5); 46 (, 1 to 5); 47 (, 1, 2, 4, 5); 48 (, 1 to 5); 49 (, 1 to 5); 50 (, 1 to 5); 51 (, 1 to 5); 52 (, 1 to 5); 53 (, 1 to 5); 54 (, 1 to 5); 55 (, 1 to 5); 56 (, 1 to 3); 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1993; 1995; 1996; 1998; 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
Internet Archive
1970-2022
Preserved
2025-08-08
1-3 to 53
LOCKSS Archive
1970-2024
Preserved
2026-02-09
1 to 55
CLOCKSS Archive
1973-2021
Preserved
2026-02-09
1 to 52
LOCKSS Archive
2025-2025
In Progress
2026-02-09
56
Portico
2003-2026
Preserved
2026-02-12
Preserved : 2003/2004: 35(1-5), 2004/2005: 36(1-5), 2005/2006: 37(1-5), 2006/2007: 38(1-5), 2007/2008: 39(1-5), 2008/2009: 40(1-5), 2009/2010: 41(1-5), 2010/2011: 42(1-5), 2011/2012: 43(1-5), 2012/2013: 44(1-5), 2013/2014: 45(1-5), 2014/2015: 46(1-5), 2016: 47(1-5), 2017: 48(1-5), 2018: 49(1-5), 2019: 50(1-5), 2020: 51(1-5), 2021: 52(1-5), 2022: 53(1-5), 2023: 54(1-5), 2024: 55(1-5), 2025: 56(1-5), 2026: 57(1)
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 3 (1 to 4); 4 (1 to 5); 5 (1 to 5); 28 (3 to 5); 29 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 5); 35 (1 to 5); 36 (1 to 5); 37 (1 to 5); 38 (1 to 5); 39 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 5); 44 (1 to 5); 45 (1 to 5); 46 (1 to 5); 47 (1 to 5); 48 (1 to 5); 49 (1 to 5); 51 (1 to 5); 52 (1 to 5); 53 (1 to 5); 54 (1 to 5); 55 (1 to 5); 56 (1 to 3)
Library of Congress
2017-2024
Preserved
2025-04-07
48 (2 to 5); 49 (1 to 5); 50 (1 to 5); 51 (1 to 5); 52 (1 to 5); 53 (1 to 5); 54 (1 to 5); 55 (1 to 5)