Radio frequency identification, or RFID, employs radio waves to identify a tagged object or person passively. RFID tags, an antenna, an RFID reader, and a transceiver make up the system.

These RFID tags act as passports, proving an item’s authenticity and tracking its journey through the physical and digital spheres.

While still in its early stages, the marriage of RFID and blockchain technology has the potential to revolutionize interaction with physical objects in the digital age. It is a bridge between the tangible and the virtual, adding a layer of trust and transparency to interactions with the world.

Low, high, and ultra-high frequencies are the three main frequency bands used for RFID transmissions. High frequency is at 14.56 MHz, ultra-high frequency is between 300 and 3000 MHz, and low frequency is between 30 and 300 kHz.