PBT: Physical Backed Token

An open source standard bridging the physical and digital worlds. The Physical Backed Token (PBT) is an open source token standard that ties a physical item to a digital token on the Ethereum blockchain and allows collectors to verify ownership and authenticity of the physical item. Our first implementation of PBT uses the BEAN Chip, a physical cryptographic chip that self-generates an asymmetric key pair. PBT enables the hardware to create a new experience we like to call “scan-to-own”. If the physical item gets sold or gifted to a new owner, the subsequent owner can then “scan-to-own” that same physical item, enabling decentralized transfer of the PBT from the previous owner to the new owner. Learn more at