To cite package ‘contentid’ in publications use:

Boettiger C, Poelen J (2025). contentid: An Interface for Content-Based Identifiers. R package version 0.0.19, https://github.com/cboettig/contentid.

Corresponding BibTeX entry:

  @Manual{,
    title = {contentid: An Interface for Content-Based Identifiers},
    author = {Carl Boettiger and Jorrit Poelen},
    year = {2025},
    note = {R package version 0.0.19},
    url = {https://github.com/cboettig/contentid},
  }