Paper-Checking Originality · AIGC · Verification

Trusted academic checking platform

Plagiarism check + AIGC check, fast and verifiable.

Upload your manuscript and generate a professional report powered by a Transformer semantic model, LLM-assisted AIGC detector, fingerprint similarity engine, report ID, and integrity verification.

Start checking now
Free until Sep 1 Cloud report LLM model engine PDF report
Paper-Checking report dashboard preview
Free until Sep 1 Plagiarism Check Fingerprint similarity score and source matches LLM-assisted detector AI Writing Check Transformer-style writing signal and risk band Combined engine Full Report Plagiarism + AIGC in one report

Upload Center

Submit paper for checking

Demo mode
DOC
Drag your paper here Support PDF, DOCX, DOC, TXT, and MD. Production mode can connect storage, OCR, and text extraction.
Private scan · Report ID · integrity verification

Pricing

Limited-time free checking until September 1, 2026.

Original prices are waived during the launch period

AI writing detector

AIGC Check

$4.90FreeUntil Sep 1, 2026
  • LLM-assisted AI probability score
  • Transformer semantic writing signal
  • Risk band explanation
  • Report ID and PDF report
  • Suggested human review note
Start AIGC check
Free now

Combined originality scan

Full Report

$9.90FreeUntil Sep 1, 2026
  • Fingerprint plagiarism similarity score
  • LLM-assisted AIGC probability score
  • Matched text preview
  • Source category distribution
  • Dedicated report verification page
Run full check

Institution package

Team Credits

CustomFree PilotUntil Sep 1, 2026
  • Bulk report credits
  • Institution dashboard
  • Invoice and usage records
  • Dedicated verification database
Contact official office
Limited-time freeAll individual Paper-Checking reports are free until September 1, 2026.
Model stackTransformer semantic analysis, LLM-assisted AIGC detection, and fingerprint similarity matching work together for stronger accuracy.
Secure reportsEvery completed report receives a unique ID, integrity hash, verification page, and downloadable PDF.

Help Center

Everything users need before checking a paper.

How checking works

Upload a file or paste text, select the scan mode, confirm permission, and wait while Paper-Checking extracts text, compares sources, estimates AIGC risk, and generates the report.

Supported files

TXT, MD, and DOCX are supported by the local MVP. PDF upload is accepted with a basic fallback; production should add a stronger PDF parser and OCR pipeline.

Report verification

Each report has a unique report ID and integrity hash. For verification support, contact the official office at admin.office@jsdh-office.org.

Model engine

Paper-Checking uses a multi-model detection concept: Transformer semantic representation, LLM-assisted writing-pattern review, fingerprint matching, and report integrity verification.

Need help?

Contact Paper-Checking support

For refunds, report verification, institution credits, or technical review, the only official contact email is admin.office@jsdh-office.org.
Email official office