The fifth edition of the International Blockchain and Applications Conference (BLOCKCHAIN'23) will take place in Guimarães from July 12-14, 2023. This annual event will bring together experts and researchers in blockchain and other distributed ledger technologies (DLT), who will share projects, ideas, conferences and advances related to these technologies and their application areas. In addition, this meeting will be held in the same location as the PAAMS'23 conference.