"Frontiers in Blockchain publishes rigorously peer-reviewed research covering all theory and applications of blockchain and blockchain-related technologies"--Publisher.
Articles are published online once they pass review by the editorial board. The volume to which an article belongs is determined by the date of acceptance, rather than the date of publication (e.g. the article accepted 30 December 2019 and published 23 January 2020 belongs to volume 2, rather than volume 3). Articles within each volume have consecutive numbering, based on date of acceptance, up to volume 3, article 40 (25 September 2020), after which individual articles are given six digit numbers corresponding to the article's doi (e.g. volume 3, article 567175 (30 September 2020)). Volume 1, article 1 (26 October 2018); title from publisher's website, viewed July 2, 2021. Volume 4, article 477012 (30 June 2021), viewed July 2, 2021.