Research data management and preservation can benefit from the archival science approaches to long-term preservation. The concepts of trustworthiness, i.e. authenticity, accuracy, and reliability, as well as the connected concepts of authentication, identity, and integrity should be considered when preserving research data. They could be supported by the cryptographic mechanisms, such as e.g. hash value, and further by blockchain and distributed ledger technologies (DLT). Blockchain and DLT can be seamlessly added to the already existent research data management and long-term preservation solutions in the form of e.g. blockchain aggregator to confirm integrity of data and its existence at a certain point in time, confirm sequence of data, support or enhance non-repudiation aspect of data or records etc. This approach can be applied both to the level of individual data, files, or records, or to their aggregation(s). The data will still have to remain stored in the research data repository but can benefit from the addition of the blockchain and DLT functionality and its archival science-related characteristics.