Functionality of data sets in connection with UIDs
Chip implants, which includes all RFID such as the X1, are passive transponders without their own power source. This means that an active transponder, i.e. an antenna that “irradiates” the implant and supplies it with energy, is always required. This low energy source is sufficient to read out or write to an implant.
The NFC implant consists of different sectors on which data can be stored. Sector 0 contains the UID, also known as the serial number (unique permanent identification). This is used for example to to identify home automation systems, locking cylinders, etc. This number can be interpreted in various forms (HEX / DEZ) and is an integral part of the chip. This sector usually cannot be written and manipulated. Further sectors with consecutive numbers follow. These blocks are writable and are used by apps and licenses to either personalize the chip or provide it with additional security features. The label on the left “r” (read) “w” (write)” indicates which blocks can only be read, written or both are possible. Smartphones usually read in as many blocks until a sector is recognized as an application and executes it. Like here in the ex. a memo starts there.