Note: As per the MySejahtera privacy policy, individual-level check-in data is purged after 90 days. These summary statistics are stored only as aggregated totals; MySejahtera does not store the underlying data. Consequently, data revisions are not possible for dates more than 90 days ago, even if an inconsistency is spotted.

1. checkin_malaysia.csv: Static name; file is updated by 1500hrs daily
2. checkin_malaysia_time.csv: Static name; file is updated by 1500hrs daily
3. trace_malaysia.csv: Static name; file is updated by 1500hrs daily

1. date: yyyy-mm-dd format; data correct as of 2359hrs on that date
2. checkins: number of checkins at all locations registered on MySejahtera
3. unique_ind: number of unique accounts which checked in
4. unique_loc: number of unique premises checked into
5. i: in the time density file, checkins are aggregated by half-hour buckets, giving 48 in total; bucket i corresponds to the ith half-hour slot of the day. for instance, i = 0 corresponds to 0000 - 0029; i = 31 corresponds to 1500 - 1529.
6. casual_contacts: number of casual contacts identified and notified by CPRC's automated contact tracing system
7. hide_large: number of large hotspots identified by CPRC's hotspot identification system
8. hide_small: number of small hotspots identified by CPRC's hotspot identification system