The International Conference IOT, Blockchain and Cryptography (IOTBC 2023) will be held virtually from March 11-12, 2023. Authors are invited to submit papers by November 26, 2022 on topics related to IoT, blockchain, and cryptography, including blockchain security for IoT, consensus algorithms, and privacy issues. Selected papers will be published in the conference proceedings and special issues of related journals. Important dates include the submission deadline of November 26, 2022 and author notification by December 17, 2022.