The core database contains all the authentication information needed to connect or reconnect to a device.
The following entity-relationship (ER) diagram shows the relationships among the tables in the core database:

The database schema is specified in /db/bluetoothdb.sql, which looks like this:
CREATE TABLE bluetooth_general(
recordid INTEGER PRIMARY KEY AUTOINCREMENT,
record_type INTEGER,
address TEXT,
data BLOB
);
CREATE TABLE bluetooth_devices(
deviceid INTEGER PRIMARY KEY AUTOINCREMENT,
address TEXT,
cod INTEGER,
nameFound INTEGER,
name TEXT,
call BLOB,
media BLOB,
pim BLOB,
message BLOB,
network BLOB
);