The topic of this master’s thesis is the terminology of blockchain technology. Blockchain is a recent technology which has sparked great interest on markets around the globe. Reaping the benefits from this disruptive technology within a language community requires complete understanding of the topic in the language of the community, particularly in cases when a language tends to be rather slow to adapt to technological innovation, such as Croatian. The fact that blockchain technology has numerous potential uses which can improve different business activities and daily life suggests that it is important to catalogue, unify and describe the terminology. The paper is interdisciplinary: from the perspective of archival studies, it deals with a technology closely related to recordkeeping and digital preservation, whereas from the perspective of terminology and terminography, it deals with English terms used to describe the technology and with their potential Croatian terminological equivalents. The research carried out as part of the master’s thesis investigates the attitudes of professionals with regard to Croatian term candidates related to blockchain technology. This paper is therefore envisaged as an example of best practice in working with the terminology of disruptive technologies. By investigating the attitudes of professionals with regard to new terms which have emerged with the blockchain technology, professionals are involved in the process of terminography, which gives this master’s thesis added value. Based on the research results, the aim is to propose Croatian terms which are expected to be adopted by professionals and the general public, as well as to make the data accessible by sharing the termbase online.