Hi,
the "definition" at Magnus'
http://tools.wmflabs.org/wikidata-todo/quick_statements.php is outdated.
Magnus, can you please remove the leading zeros from the year?
Padding years to 11 digits is not done any more. For a while there was no
padding at all in the backend, while some documentation talked about 16
digits and the frontend still padded to 11 digits. All at the same time.
:-( We fixed this about a year ago and decided to always pad years to 4
digits because this minimizes storage space while being the most convenient
strategy for users.
Best
Thiemo