Sources

Sidebar checks each claim against these 67 sources and links every card to the original record.

Government & law

• Congress.gov

  Federal bills: when they were introduced, where they stand, and when they became law.

  Library of Congress (Congress.gov); U.S. GPO (GovInfo)

• Congressional Research Service summaries

  What each federal bill does, in plain language.

  Congressional Research Service via U.S. GPO

• State legislatures

  Bills and their text, each from the legislature's own site.

• • Alabama Legislature
  • Alaska Legislature
  • Arizona Legislature
  • Arkansas General Assembly
  • California Legislature
  • Colorado General Assembly
  • Connecticut General Assembly
  • Council of the District of Columbia
  • Delaware General Assembly
  • Florida Legislature
  • Georgia General Assembly
  • Hawaii State Legislature
  • Idaho Legislature
  • Illinois General Assembly
  • Indiana General Assembly
  • Iowa Legislature
  • Kansas Legislature
  • Kentucky General Assembly
  • Louisiana Legislature
  • Maine Legislature
  • Maryland General Assembly
  • Massachusetts Legislature
  • Michigan Legislature
  • Minnesota Legislature
  • Mississippi Legislature
  • Missouri General Assembly
  • Montana Legislature
  • Nebraska Legislature
  • Nevada Legislature
  • New Hampshire General Court
  • New Jersey Legislature
  • New Mexico Legislature
  • New York State Legislature
  • North Carolina General Assembly
  • North Dakota Legislative Assembly
  • Ohio General Assembly
  • Oklahoma Legislature
  • Oregon State Legislature
  • Pennsylvania General Assembly
  • Rhode Island General Assembly
  • South Carolina General Assembly
  • South Dakota Legislature
  • Tennessee General Assembly
  • Texas Legislature
  • Utah State Legislature
  • Vermont General Assembly
  • Virginia General Assembly
  • Washington State Legislature
  • West Virginia Legislature
  • Wisconsin State Legislature
  • Wyoming Legislature

Science & research

• OpenAlex

  Scholarly papers across every field, with how often they are cited.

  OurResearch

• PubMed

  Biomedical research papers and their abstracts.

  NLM/NCBI

• Retraction Watch

  Flags research papers that have been retracted.

  Crossref / Center for Scientific Integrity

• ChEMBL

  Medicines and compounds: first approval year and clinical phase.

  EMBL-EBI

• PubChem

  Chemical compounds: formulas and molecular weights.

  NCBI

• NCBI Gene

  Human genes: names, locations and what they do.

  NCBI

Medicine & drugs

• ClinicalTrials.gov

  Registered clinical trials: phase, enrollment, sponsor and status.

  NLM/NIH

• FDA Orange Book

  FDA-approved drug products and the companies that hold them.

  US FDA

• DailyMed

  Official FDA drug labels, including boxed warnings.

  NLM (FDA SPL labels)

• Open Targets

  Diseases and the genes linked to them.

  Open Targets

History & reference

• Wikipedia

  Encyclopedia articles, read in full rather than just the summary.

  Wikimedia Foundation

• Wikidata

  Structured facts like founding dates, office holders and populations.

  Wikimedia Foundation

• Chronicling America

  Historic American newspapers from 1777 to 1963, from the Library of Congress.

  Library of Congress

• Open web search

  Search results, each cited as its own page, with forums and social media ranked last.

  Web search via Serper; each result cites its own page

Logos on the homepage, from Wikimedia Commons: Library of Congress (Public domain), PubMed (Public domain), National Library of Medicine (Public domain), NCBI (Public domain), FDA (Public domain), OpenAlex (MIT), PubChem (Public domain), ChEMBL (Public domain), Retraction Watch (Public domain), DailyMed (CC BY 3.0), Wikipedia (Public domain), Wikidata (Public domain). State seals: Wikimedia Commons, public domain. Sidebar is not affiliated with or endorsed by these organizations.

Coming next: 58 federal datasets about companies, from the SEC, FTC, Justice Department and more. Each source is added only once its terms allow it and a real lookup returns the original record.