Check before publication
Start with the Center's archive, then compare the wording with official sources. Open link, image and text tools only when the material really requires them.
- Look for an existing check
- Confirm the claim with official sources
- Move to technical checks if doubts remain
How data is handled
Link, image and claim-plan checks run locally. Published-check search goes to the Center's database; official-source search sends only the entered claim to the official-source search service.
Choose the material
What are you checking?
Each card opens the relevant check. External services are listed below in the open-source section.
Output formatChoose the check for your task Analyst, journalist, editor, lawyer or public officer 5 tasks
CCD workbench
Run the check
Start with published checks and official sources. Open the remaining panels only when the material requires them.
- 7 built-in tools
- 5 local checks
Search published checks
Start with a name, quotation, organization or a distinctive fragment of the claim.
2Search official sourcesA source note with official links and explicit uncertainty
3Inspect a linkProtocol, domain and common risk signals
4Inspect an imageFormat, dimensions and SHA-256 fingerprint
5Build a claim-check planTurn a message into a reproducible checklist
6Compare two wordingsSee what was added, removed or reframed
7Extract checkable detailsDates, values, percentages, links and quoted fragments
Additional tools
Open-source verification tools (OSINT)
This selection lists maintained open-source projects, open standards and public tools. A tool does not replace a verification result; keep sensitive material in local tools.
Image and provenance
Inspect locally first, then compare independent traces.
4
Image and provenance
Inspect locally first, then compare independent traces.
- Input
- image
- Output
- technical views
- Limit
- signal only
- Input
- media file
- Output
- C2PA manifest
- Limit
- no manifest ≠ false information
- Input
- image/search
- Output
- visual matches
- Privacy
- external upload
- Input
- image or URL
- Output
- match history
- Limit
- index coverage
Video and keyframes
Break a clip into checkable frames and find the original context.
2
Video and keyframes
Break a clip into checkable frames and find the original context.
- Input
- video URL
- Output
- keyframes
- Use
- origin search
- Input
- public links
- Output
- archive package
- Limit
- public only
Website and source
Recover history and inspect public infrastructure without visiting a risky page directly.
3
Website and source
Recover history and inspect public infrastructure without visiting a risky page directly.
- Input
- URL
- Output
- page copies
- Limit
- archive gaps
- Input
- domain/query
- Output
- public scans
- Privacy
- search only
- Input
- domain
- Output
- RDAP / WHOIS
- Limit
- privacy redaction
Claim and investigation
Find prior checks, decode technical fragments and identify what to verify next.
3
Claim and investigation
Find prior checks, decode technical fragments and identify what to verify next.
- Input
- claim
- Output
- ClaimReview
- Limit
- publisher markup
- Input
- research task
- Output
- tool route
- Owner
- community
- Input
- text/hash/date
- Output
- decoded fragment
- Privacy
- browser-first
Editorial boundary
A signal is not a result
A reliable conclusion needs the original claim, date and context, at least one primary source and a clear note about uncertainty.