Guides
Verification guides for the files your teams review.
Methods your reviewers can apply today: what each check establishes, where it stops and which evidence to request next. Written for claims, finance, trust and safety and procurement teams.
Images and photos
Whole-image generation, local edits, provenance records and the inputs a detector can work with.
How to Tell If an Image Is AI-Generated
Was this image generated by AI? Check its source, Content Credentials, watermarks and visual clues, then run a detector. Includes AI art, a worked example and a checklist.
19 min read ·
How to Tell If a Photo Has Been Edited or Photoshopped
Is this photo photoshopped? Check visual signs, view EXIF metadata, compare versions and read error level analysis with care to reach a defensible finding.
18 min read ·
How to Detect AI Edits in a Photo
Review photos for local AI edits with a practical workflow for source files, localization masks, provenance and independent corroboration.
13 min read ·
Can AI Detectors Check Screenshots and Compressed Images?
Learn what screenshots and compression change, which file to submit, how to interpret limited results, and when to request an original or independent evidence.
17 min read ·
C2PA, AI Watermarks and Image Detectors: Which Check Do You Need?
Compare C2PA Content Credentials, AI watermarks and image detectors. Build a review workflow for mixed sources and resolve conflicting results.
12 min read ·
PDFs, receipts and invoices
Document structure, revisions, signatures, scanned fields and AI-written passages, with issuer and transaction checks for invoices and receipts.
How to Check If a PDF Has Been Edited
Check a PDF with trusted copies, signature validation and metadata. Learn how to view PDF and Word metadata and what each field can and cannot prove.
16 min read ·
Document Fraud Detection: AI-Generated and Altered Files
How to spot a fake utility bill, pay stub or bank statement, then confirm with the issuer. Choose fraud detection software by what each tool proves.
19 min read ·
How to Verify an Invoice Before Payment: Changed Amounts, Payees and Supporting Records
Verify invoice amounts, receipt records, revisions, prior payments and payee changes before approval. Use a worked AP case and reusable approval record.
14 min read ·
How to Detect Fake Receipts: AI-Generated Images, Altered Totals and Duplicate Claims
Review suspected fake receipts with checks for AI-generated images, altered totals, duplicate claims and transaction support, plus a worked expense audit.
12 min read ·
How to Spot a Fake Pay Stub and Verify Proof of Income
Spot fake pay stubs and W-2s, then verify income with the employer, payroll provider or tax records. A US and Canada workflow for lenders and landlords.
13 min read ·
SHA-256 Checksums and Trusted Timestamps: How to Prove a File Has Not Changed
Check a file's SHA-256 hash on Windows, macOS or Linux, verify an RFC 3161 trusted timestamp and see what each proves as evidence.
12 min read ·
Claims and refunds
Review workflows for insurance claim photos and retail refund requests, from intake to a documented decision.
AI Insurance Fraud: A Practical Claim Photo Review Workflow
Review insurance claim photos with a practical evidence workflow, worked example and checklist. Separate AI image findings from decisions about fraud.
14 min read ·
AI-Edited Product Photos in Refund Claims: A Review Workflow for Retailers
Review AI-edited product photos in refund claims with an order-to-parcel checklist, practical customer request, worked example and pilot metrics.
16 min read ·
Evaluating detection
Accuracy figures, false positives and the questions to put to a provider before you commit.
Detecting AI-Generated Images: Accuracy and False Positives
Understand accuracy, false positives and score limits in detection of AI-generated images. Use a worked evaluation to compare thresholds, review workload and uncertainty.
12 min read ·
How to Choose Software for Detecting AI-Generated Images
Evaluate AI image detection software with an evidence-based buying rubric, a practical pilot design, and a worked review-cost comparison.
15 min read ·
Put a verifiable record behind every file decision.
Tell us which files your teams review, in what volume and in which systems. We will set up access and walk your team through real cases.