socrata - Receiving stale data when retrieving all objects in dataset, versus specific objects -

the data here

http://data.seattle.gov/resource/3neb-8edu.json

for object object_id of 6231 has timestamp field consistently behind 1 when querying object directly:

http://data.seattle.gov/resource/3neb-8edu/6231.json

why have directly query object latest data?

thanks!

turns out not solve problem.

what adding ?_= parameter bust cache.