  In the age of respiratory illnesses like COVID 19, we understand the
necessity for a robot based delivery system to ensure safe and contact free
courier delivery. A blockchain based Dynamic IDentifier gives people total
power over their identities while preserving auditability and anonymity. A
human mobile phone and a robot are machines created with a chip, making it
simple to deploy a physical unclonable function based verification system
between the robot and the customer. This article presents a novel framework and
a first customer verification scheme for verified courier delivery utilizing
the blockchain enabled DID and PUF enabled robots. We employ DID for customer
authentication between a robot (a service provider) and a customer and PUF for
robot verification by the customer. We ve also put the proposed work into
practice and demonstrated its capabilities in terms of throughput, latency,
computing cost, and communication cost. We also show formal security proof for
the proposed user verification scheme based on the tamarin prover.
