A Unified Framework for Versioned, Traceable Tabular Data R package datom version 0.1.2 Provides versioned storage for tabular data without a database or a server. Each table is written as an immutable, content-addressed version -- identical content is detected and stored only once -- while its version history and metadata are kept as code in a 'git' repository and the data itself in a local filesystem or cloud object storage ('S3'). Any past version can be read back exactly by its identifier, and each table records the sources it was derived from, so a project carries full data lineage. A lightweight reader role retrieves current or historical data from storage alone, without 'git' or write access, giving downstream analyses and pipelines a single versioned source of truth. It targets analytical and scientific data management, such as preparing clinical study datasets, and is designed as a foundation for higher-level governance tooling. Software Depends: R (>= 4.1.0) Imports: arrow, cli, digest, fs, glue, httr2, jsonlite, paws.storage, purrr, rlang, utils, yaml Suggests: covr, git2r, knitr, mockery, rio, rmarkdown, testthat (>= 3.0.0), withr Afshin Mashadi-Hossein <amashadihossein@gmail.com> Comprehensive R Archive Network (CRAN) Afshin Mashadi-Hossein [aut, cre, cph] MIT + file LICENSE (https://CRAN.R-project.org/package=datom/LICENSE) 2026-09-08 application/tgz https://CRAN.R-project.org/package=datom doi:10.32614/CRAN.package.datom