International Journal of Scientific and Research Publications, Volume 11, Issue 7, July 2021 ISSN 2250-3153 723 This publication is licensed under Creative Commons Attribution CC BY. http://dx.doi.org/10.29322/IJSRP.11.07.2021.p11597 www.ijsrp.org Blockchain and the Internet of Things: Challenges in Monitoring System for Covid-19 SHOAIB UL HASSAN 1 , JINGXIA CHEN 2 , ALI AKBAR 3 , ZAKI RAMZAN 4 , MUHAMMAD AHSAN 5 , MUHAMMAD ASIM HAFEEZ 6 1,2,3,4,5 Department of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology Xi’an, China 6 Department of Gender Studies Quaid-i-Azam University Islamabad, Pakistan DOI: 10.29322/IJSRP.11.07.2021.p11597 http://dx.doi.org/10.29322/IJSRP.11.07.2021.p11597 Abstract-- The COVID-19 (Corona Virus) is an intensely rising virus that has intentioned countries to utilize technologies to identify Covid disease. Several countries are working incredibly to battle against COVID-19. Numerous countries have been utilizing a range of gadgets to contest the pandemic, looking for data about growth, perceiving as well as the emancipating the personal data of the inhabitants. In the present situation of COVID-19 (Corona Virus) legislative institutes all around the world make an effort to build a monitoring system that notifies about declared cases throughout the world. Several Researcher suggested IoT and Blockchain-based applications for this reason. The significant thought behind a IoT and Blockchain-based system for monitoring is quality services, information handling and prevent from Single Point of Failure. Even now , it raises various issues concerning to Security Issues, Legal Disputes, Privacy Requirements, Latency, Throughput, Scalability, Intense Traffic and Block Size. This article aims to discuss these IoT and Blockchain-based applications Challenges. Keywords-- COVID-19, IoT, Blockchain 1. INTRODUCTION The Whole World are fighting with another disease called Corona Virus. It is first distinguished in the Wuhan City of China in end of the Dec 2019. In Mainland China it began a lot of deaths [1]. After 10 Mar 2020, The World Health Organization (WHO) uttered corona virus an overall pandemic. At the time of writing article, more than 172M cases and more then 3.69M deaths have been recounted for in the additional of 189 nations and locales. Technological innovations are the perilous assets of the modern world that may assist us defeating the difficulties given by corona virus. New innovations—like Internet of Things (IoT), Blockchain, Machine Learning (ML), Big Data, Artificial Intelligence (AI), robotics, 3D prints, 5G interchanges, nanotechnology, cloud & edge computing— could be utilized to build intellectual disaster managing policies for the corona virus. Eminently, Block-chain has been distinguished by European Parliamentary Research Service (EPRS) as most important key developments to battle against corona virus [2]. The blockchain offers a distributed computational facility architecture that eliminates the vast majority of the restrictions related with the integrated computing network. Blockchain is an variety of computing hubs that are linked in a distributed peer-to- peer (P2P) method and commonly check transactions implemented inside the network [20]. In the Blockchain, every block cryptographically closes a bunch of transaction and is connected with prior block to construct a hash based (cryptographically ) group of blocks. Blockchain is a decentralized database to keep the history of transaction along with timestamps[3,20]. Blockchain begin through a primary block known as a genius block. Private and public keys are utilized to access the network as well as for transaction. The node creates a transaction approved with its private key and communicated through the network. Different nodes on the network approve this transaction and rejected if it is invalid[4].