Against the sources it cites
When a slide or paragraph cites a study, a filing or a benchmark, Velydian opens it and checks the figure, the year and the sample against it.
For consulting and due diligence
Before the deliverable carries your name.
A report cites forty sources and a partner signs it. Velydian checks every cited source against the sentence that cites it, and finds sources for the assertions that have none.
Free trial, no card needed.
- Cited or not. Every claim checked, and stronger sources found where the evidence is weak.
- A record you can keep. Annotated document, audit trail and exports, in minutes.
- Swiss and private. Data residency in Switzerland, processing in Switzerland and the EU, GDPR compliant.
VerdictIllustration
CLAIM IN YOUR DELIVERABLENeeds Revision
“The market is growing at 25% a year.”
What the source says
“The market grew 25% in 2024. Growth is expected to slow to 9% a year by 2028.”
Cited market study, page 6
25% is one year’s growth. The study expects growth to slow to 9% a year.
The stakes
What an unsupported claim costs.
A$440K
Government report in which non-existent references and an invented court quote were found. Deloitte refunded the final instalment, A$97,587.
Senate estimates, reported by CFO Dive (Oct 2025)CA$1.6M
Cost of a 526-page provincial health workforce plan found to cite at least four research papers that do not exist.
The Canadian Press, via HR Reporter (Nov 2025)£700M+
Damages ordered in HP’s Autonomy case, after the target’s financial position was misstated to the buyer.
Law Gazette, HPE v Lynch (Jul 2025)What it catches
Six things that go wrong in deliverables.
Each one with the claim, the passage Velydian reads, and the verdict. Examples for illustration.
One year stated as a trend
“The market is growing at 25% a year.”
“The market grew 25% in 2024. Growth is expected to slow to 9% by 2028.”Needs Revision
A single year, presented as the growth rate.
A benchmark from a different sample
“Peers spend 4% of revenue on IT.”
“Median IT spend: 4% of revenue among banks.”Needs Revision
The benchmark covers banks; the client is a retailer.
A reference that does not exist
“(OECD, Digital Productivity Outlook 2024)”
No OECD publication with this title and year could be found.Unverifiable
The kind of reference that has already cost a firm a refund.
A fabricated quotation
“As the court put it, ‘the agency must act’.”
The judgment contains no such passage.Not Supported
Flagged before the client reads it.
A target read as an achievement
“The competitor cut costs by 15%.”
“We aim to reduce costs by 15% over three years.”Not Supported
An ambition, reported as a result.
A sound market figure
“The Swiss market was worth CHF 3.1 billion in 2025.”
“Market size, Switzerland, 2025: CHF 3.1 billion.”Supported
Matches the cited study, with the passage kept.
Not another fact checker
Not just right or wrong. Supported or not.
Velydian checks the figures. It also weighs what a deliverable does with them: the conclusion it draws for the client and how strongly it states it. A figure can be in the study and the slide around it can still mislead.
One claim, three levels · illustration
“Digital channels will drive 60% of the sector’s growth by 2028.”Needs RevisionSource: the market study the deck cites. Example for illustration.
- Level 1
Facts
Figures, dates, names and quotations, checked against what the source actually says.
Does the study say 60% or 16%?
Velydian findsSupportedThe 60% figure is in the cited market study.A citation check stops here: true. - Level 2
Interpretation
Whether a conclusion follows from the source, or reaches further than it.
Is this the measure the study used?
Velydian findsStretchedThe study’s 60% is a share of new customers, not of revenue growth. - Level 3
Judgement
Whether the statement is as strong as its evidence, and what was left out.
Would the client see the range the study shows?
Velydian findsOverstatedThe study projects a 35% share in its low case and 60% in its high case. The slide presents 60% as certain.Verdict: Needs Revision. The figure is in the study; the slide makes it say more than the study does.
How it works
Upload the deliverable. Every claim comes back with its evidence.
PDF, Word, text or Markdown, a deck exported to PDF, or paste it in. Velydian finds each claim and checks it in one of three ways.
Assertions with no source
Velydian searches official statistics, company reports, research databases and the wider web, keeps the strongest sources and checks the claim against them.
Against your own files
Attach the client’s data, interview notes or data-room documents, and every statement is checked against them. You see the price before it starts.
Three layers of checking
Surface tools check that a source exists. Velydian reads it.
Layer 1
Distortions and inaccuracies
Figures that drift, years that shift, a benchmark from another sample.
A benchmark from banks applied to a retailer.
Layer 2
Bias and fabrication
References that do not exist, a study that says something else, and what was left out.
A reference to a report its publisher never released.
Layer 3
Stronger sources
When a figure rests on a weak source, Velydian looks for the original study.
A figure quoted from a news story is flagged, with the original study offered instead.
One verdict per claim
Four verdicts, each with its evidence.
Supported
The source checked backs the claim as written.
Needs Revision
Close, but a figure, the year or the sample does not match the source.
Not Supported
The source does not back the claim, or says something different.
Unverifiable
No source could be read or found that settles it, for example a reference that does not exist.
Open any verdict to see the passage and the reasoning behind it. Correct a line or swap a source and it is checked again. Velydian weighs the evidence; the engagement team decides what to change.
- Drop the deliverable inPDF, DOCX, TXT, MD or pasted text.
- Every claim is checkedAgainst the cited source, your own files or independent sources.
- Review and correctFix a claim or swap a source; it re-checks.
- Take the resultAnnotated deliverable, audit trail, executive summary, CSV/JSON exports.
How we test it
Test it on a document you already know.
Our published test results so far are on company reports: see Velydian for Finance. For every other kind of document, the best test is one of your own.
Every verdict, open to inspectionSource + reasonEach verdict shows the passage it rests on and why, so you can check Velydian itself.In every result
When the sources cannot settle itUnverifiableThe claim is marked Unverifiable, with the reason, for a person to check.One of four verdicts
Your own testYour documentRun a deliverable where you already know the mistakes, and see whether Velydian finds them.First check free
Review the verdict and the reasoning yourself: every one shows its evidence. Your first check is free.
Today and with Velydian
From hours of checking to minutes.
Manual QA on deliverables
Hours per report, risk with the client
- Sources re-opened and read by hand
- Drifted numbers survive several rounds of review
- Invented references look exactly like real ones
- No record of how each claim was checked
Velydian on your deliverables
Checked before it goes to the client
- A full report checked in minutes
- Every cited source we can reach is read; the rest are flagged
- Sources found for unsourced assertions
- The quoted passage behind every verdict, kept as an audit trail
What it checks
The documents your team signs.
- Client reports and decks
- Due-diligence reports
- Market studies
- Benchmarking analyses
- Government and public-sector reports
- Proposals
- Expert-witness reports
- Research notes
Who uses it
Across the team.
- PartnersSign a deliverable knowing which sources were read, and which could not be.
- Engagement managersCatch drifted figures between drafts.
- AnalystsTake the source-checking off the final night.
- Quality and riskKeep an audit trail for every client deliverable.
What you get back
A record you can keep.
- The annotated deliverableEvery claim marked with its verdict, in place.
- An audit trailFor each claim, the passage relied on and the reasoning.
- Stronger sourcesWhere a figure comes from a summary, the original study to cite instead.
- ExportsExecutive summary, CSV and JSON.
Cost
You see the price before you start.
Checking a deliverable by handCHF 450your rate × your hours
With Velydian, pay as you goCHF 4.8094× cheaper30 cited claims drawn from 10 sources: 160 credits
At the Founder rateCHF 1.60281× cheaperthe same deliverable, CHF 0.01 per credit
Checking a claim costs 5 credits and reading a source costs 1. Deeper source audits cost more. Your reviewers still read the verdicts; Velydian takes the tracing off their desk.
Questions
Before your first deliverable.
Can it check a deck, not just a report?
Yes. Export the deck to PDF or paste the text. Every claim on every slide is checked.
Can it check against the client’s own data?
Yes. Attach the client’s files and every statement is checked against them.
Does it replace our quality review?
No. It does the tracing: finding and reading the source behind each claim. Your reviewers keep the judgement, with the evidence laid out for them.
Where do the sources come from?
Three places. The sources your document cites; sources Velydian finds on official websites, research databases and the wider web for claims without a citation; or your own files, if you attach them.
What happens to my document?
When you run a check, your document’s text is sent over an encrypted connection to our servers and AI services in Switzerland and the EU. To find evidence, short search queries built from your claims are sent to web and scholarly search services. Your document’s content and results are deleted automatically about 24 hours after your check; source links and summary data are kept.
Which languages does it check?
English is measured and in daily use. German and French are in validation.
Can I rely on Velydian as my only check?
Velydian supports human review. It shows the evidence behind every verdict so you can decide. In high-stakes work, expert judgement stays essential.
A Swiss company
Data in Switzerland. Processing in Switzerland and the EU.
- Data residency in Switzerland, processing in Switzerland and the EUGDPR and Swiss data protection terms are covered by our Data Processing Agreement.
- A Swiss companyVelydian is built by MindtheGap Sàrl in Geneva.
Check your next deliverable before someone else does.
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