BOINC projects can export statistics data describing teams, users and hosts. This data can be imported and used to produce web sites that show statistics and leaderboards for one or more BOINC projects. Examples of such sites are listed at http://setiweb.ssl.berkeley.edu/sah/stats.php.

Statistics data is exported in XML-format files. XML schemas for these files are here, and a graphical representation is here.

These files are contained in a download directory, linked to from the project's web site. A project can decide what data to export, and how it is divided into files. This is described by a file db_dump.xml of the following form: "; echo html_text(" x
x x n x ... ... "); echo " An 'enumeration' is a listing of particular table. The fields are: "; list_start(); list_item("table", "'user', 'host' or 'team'"); list_item("filename", "The base filename."); list_item("sort", "The sorting criterion: 'total_credit', 'expavg_credit', or 'id'. 'id' is the default." ); list_end(); echo "An 'output' is a file or set of files containing an enumeration. The fields are:"; list_start(); list_item("recs_per_file", "If present, the listing is divided into multiple files with the given number of records per file. The file names have the form xxx_N, where xxx is the base filename. For views that are ordered by ID, each file contains a fixed-size segment of the ID range, not a fixed number of records. If the database ID allocation has gaps, files will have fewer than this number of records.

If zero or absent, the listing is written to a single file." ); list_item("detail", "If present, records are 'detailed': user records include a list of hosts, and team records include a list of users." ); list_end(); echo"

The download directory contains the following files: "; list_start(); list_item("tables.xml", "This gives the total number of records for each entity type (team, user, and host). It also includes the UNIX time when the files were last generated, and a list of the project's applications, with counts of results in various states.
For example:

".
htmlspecialchars("
    1046220857
    127
    14
    681
    
        
            setiathome
            100
            1000
            10000
        
        ...
    

").
"

"); list_item("core_versions.xml", "A list of versions of the core client in the project's database" ); list_end(); echo "

The format of the various XML elements in the output files is as follows.
Notes:

<cpid> ('cross-project identifier') is a unique identifier across multiple projects. Accounts with the same email address on different projects will have the same cross-project identifier (as long as at least one computer is attached to both accounts).
All 'expavg_credit' values were computed at some point in the past (given by 'expavg_time'). To compute their current values, they must be scaled according to the formula given here.

Team summary

",
htmlspecialchars("

 5
 Broadband Reports Team Starfire
 153402.872429
 503030.483254
 1087542007.701900
 14

"),
"

Team detail

",
htmlspecialchars("

 5
 Broadband Reports Team Starfire
 153402.872429
 503030.483254
 1087542007.701900
 14
 0
%3Ca%20href%3D%27http%3A%2F%2Fbroadbandreports%2Ecom%2Fforum%2Fseti%2
7%3E%3Cimg%20src%3D%27http%3A%2F%2Fi%2Edslr%2Enet%2Fpics%2Ffaqs%2Fimage2067%2Ejp
g%27%3E
 None
 
  12
  John Keck
  42698.813543
  117348.653646
  1087542007.701900
  5
 
 
  14
  Liontaur
  46389.595430
  122936.372641
  1087542007.701900
  5
 

"),"

User summary

",
htmlspecialchars("

 12
 John Keck
 42698.813543
 117348.653646
 1087542007.701900
 283472938743489759837498347
 [ 5 ]
 [  ]

"), "

User detail

",
htmlspecialchars("

 3
 Eric Heien
 4897.904591
 9820.631754
 1087542007.701900
 United States
 1046220857
 [ 14 ]
 [  ]
 
    27
    0.000000
    0.000000
    1087542007.701900
    
    
    Darwin
    6.2
 
 
    266
    0.000000
    0.000000
    1087542007.701900
    GenuineIntel
    Intel(R)
    Linux
    2.4.18-18.7.x
 

"),"

Host summary

",
htmlspecialchars("

  266
  0.000000
  0.000000
  1087542007.701900
  GenuineIntel
  Intel(R)
  Linux
  2.4.18-18.7.x

"),"

Host detail

",
htmlspecialchars("

  102
  3
  0.000000
  0.000000
  1087542007.701900
  GenuineIntel
  Pentium
  Windows XP
  5.1
  1040170006
  28800
  2
  45724737.082762
  43233895.373973
  4032258.064516
  670478336.000000
  1000000.000000
  1638260736.000000
  9088008192.000000
  3788505088.000000
  24109.794088
  57037.049858
  465609.562145
  e129b5fa44ed8ba58e41c472822f2807

"),"

"; page_tail(); ?>