Keep these fields in the source log
- Question and conclusion criterion
- URL, author, date and working copy
- Fact, interpretation and justified confidence level
Public research resources · FR / EN
How can a file be produced that another reader can verify ? Practical method, external tools, source log and interpretation limits.
External services · no results hosted here · queries sent only when you click a provider link.

More tools do not make sources independent. A useful file prioritises relevant evidence and wording proportionate to uncertainty.
Editorial selection of external services and resources, described using their portals or documentation. References reviewed on 3 October 2026; availability, prices, quotas and interface languages can change. Subscriptions and paid features were not tested.
3 catalogue entries
Choose tools by category and consult their usage guides.
Limit: A tool description authorises neither intrusive collection nor automatic conclusions.
Study digital content verification methods and editorial examples.
Limit: Some cited interfaces may have changed; retain the corroboration principle.
Organise references, documents, notes and citations in a research library.
Limit: A saved reference is not verified; distinguish metadata, copy and commentary.
No matching catalogue entry. Try another term or reset the filters.
These downloads contain tool descriptions and links, not provider search results. Retain limitations, references and review dates when reusing the catalogue.
On the selected provider’s website, in a new tab. IIS does not retrieve, host or display investigation results. Directory filters only filter the editorial catalogue.
The launchpad builds links inside your browser, without sending the query to IIS or storing it in browser storage. Clicking a prepared link sends the query to the named provider, under its own rules.
No. Access may require an account, subscription, software or quota. The catalogue is available in French and English; providers set their interface languages, coverage and conditions.
No. Index coverage, spelling, language, access limits and capture dates can explain a missing result. Record what was searched and what remains unknown.