To cite package ‘hashids’ in publications use:

Shum A, Akimov I (2018). hashids: Generate Short Unique YouTube-Like IDs (Hashes) from Integers. R package version 0.9.0.9000, https://github.com/alshum/hashids-r.

Corresponding BibTeX entry:

  @Manual{,
    title = {hashids: Generate Short Unique YouTube-Like IDs (Hashes)
      from Integers},
    author = {Alex Shum and Ivan Akimov},
    year = {2018},
    note = {R package version 0.9.0.9000},
    url = {https://github.com/alshum/hashids-r},
  }