Access to extended datasets is available through multiple means, depending on a number of factors like the access level granted to the user.
rsync for the complete dataset access
HTTP API for realtime query-based access
The format is always JSON:
in rsync access, the distributed files contain one JSON string per line -each referring to a single datapoint- in addition to a header containing the metadata relative to the export (like its timestamp)
in case of API access, queries return a JSON ojbect comprised of a header providing the metadata and an array of results; each member of such array has the same structure as the ones provided in the file access
The format of the single datapoints described here are common to all access media, but depending on the access level not all the fields may provided.