Journal of Ubiquitous Systems & Pervasive Networks Volume 12, No. 2 (2020) pp. 09-15 * Corresponding author. Tel.: +00000000000000 Fax: +9876543210; E-mail: issaouiyassine818@gmail.com © 2020 International Association for Sharing Knowledge and Sustainability. DOI: 10.5383/JUSPN.12.02.002 9 Smart Logistics: Blockchain trends and applications Yassine Issaoui a *, Azeddine Khiat a , Ayoub Bahnasse b , Hassan Ouajji a a Lab SSDIA, University Hassan II of Casablanca, Morocco b ENSAM Casablanca, University Hassan II of Casablanca, Morocco Abstract The recent increase of new technologies and their involvement into all management processes call into question the smart logistics current models, in which massive amounts of data is collected and controlled. Smart Logistics is considered as fundamental pillar of the 4th industrial revolution 'industry 4.0'. This revolution is based on different concepts including the blockchain technology. Blockchain remains one of the buzzwords in the technological world. So that all sectors are focus on concrete use cases. However, few actors can boast of having devised revolutionary solutions. For good reasons, blockchain technology is still very complex to understand. The purpose of this study is to define the various applications of Blockchain in Smart Logistics, as well as to present concrete examples of these applications. This work was done by classifying the applications according to four clusters: Information, Transport, Finance, and Management, in addition to presenting the applications of each cluster. Keywords: Blockchain, Smart Logistics, Smart Constracts, Smart Supply Chain Management. 1. Introduction Digitization and the growth of new technologies such as the "Internet of Things", 3D printing, robotics, predictive analytics and artificial intelligence, have a significant impact on the processes all along the supply chain. During this process, decision-making, at the stages of the manufacturing and distribution process, can be accomplished using sophisticated and complex analyzes that decrease the human intervention. Two simple things prove that using a smart supply chain is a persistent benefit are: cost and space savings. Actually, the smart logistics system is a self-organizing and self-optimizing system, in which, the data from the connected sensors can be integrated with the data based on user preferences. In fact, Smart logistics remains a fairly complex concept. It can be used in geographically dispersed areas, for the acquisition of raw materials of the highest quality, as well as the lowest cost, or the marketing of products to reach a large number of consumers. The industry 4.0 paradigm is characterized by the use of new technologies such as IoT, 5G, sensors, RFID cards, smart products, actuators, and intelligent machines. Consequently, a large amount of data will be generated and new challenges will emerge. This highlights the issues of confidence, lack of interoperability, as well as many security and data reliability issues that form major challenges to face the implementation of such infrastructures problems, also, fraud, theft, loss of data, the diversity of marketing policies, the multitude of expenses of financial transactions and goods. Although, the transparency of the supply chain, it remains one of the most important and difficult to reach areas for logistics and supply chain management [1]. Therefore, a simple, secure, fast sharing of information or products, and funds was the need of almost all companies operating in this field. As an emergent technology, Blockchain begins to appeal to smart logistics researchers. Thus, blockchain aims to increase the operational performance while ensuring the reliability and security of shared information. Blockchain technology first gained popularity as a management platform for Bitcoin, which is a digital cryptocurrency. In addition to the digital currency, blockchain is a new paradigm of computer science and data flows. For that, it has broad implications for the future development of supply chain management and logistics [2]. Blockchain technology can ensure data security, reliability, traceability, and authenticity, which will increase trust between supply chain actors and end consumer, by providing reliable information about the shared products through a public Blockchain. Blockchain technology could simplify or even automate the exchange of information and generate greater trust between the various partners. It is then the whole supply chain which would gain in speed of execution. companies are slowly starting to deploy blockchain in their supply chain, although the results are still rare at the moment. In 2018, several industry alliances and associations were established to explore the potential for using this technology across logistics activities. The main purpose of this paper is to examine the scope of Blockchain technology in the field of smart logistics. For this, we segmented our study into four sets. Firstly, Information; which consists of presenting the application of Blockchain for