Paper plagiarism checking portal

What is a paper plagiarism checking tool?

The paper plagiarism detection portal is an aggregation service for paper checking that operates under the CheckPass domain, offering a variety of plagiarism detection and AIGC detection systems.

It is not the unified official website for all the testing brands listed; when choosing a service, it is necessary to check the system name, scope of application, and purpose of the reports.

Main functions

• Measure the text similarity between the paper under review and existing literature.
• Identify content in papers that may have been generated by generative AI.
• Reduce the repetition rate or the likelihood of it being considered AIGC-generated.
• Rewrite the paper with the assistance of the test report.
• Check the English spelling, grammar, and sentence structure.
• Detect the reuse or abnormalities in scientific research images.
• Check the paper format and references.
• Pay online and download the test report.

What testing systems does the platform offer?

The page aggregates multiple third-party testing services under a single entry point, allowing users to choose based on the type of paper and the requirements of their institution.

Paper similarity detection

The similarity system compares the uploaded text with its database of references, and provides information such as the repeated segments, their sources, and the percentage of overlap.

• Different systems have different literature databases and algorithms.
• The results of the same paper may vary across different systems.
• The first draft can be used to identify issues, while the final version should comply with the school’s requirements.
• Incorrect citation formatting can also be counted as duplicate content.
• The overall similarity ratio cannot replace segment-by-segment analysis.
• The report is only suitable as a reference for making modifications.

AIGC text detection

AIGC detection is used to assess the likelihood that a text was generated by a generative AI; the platform offers multiple systems in both Chinese and international languages.

The AIGC score is the result of a model’s assessment; it is not direct evidence of the author’s actions, nor does it guarantee consistency with the official tests conducted by educational institutions.

AI text reduction and paper rewriting

The platform offers different versions that help reduce the repetition rate, lower the likelihood of AIGC detection, and address both types of issues simultaneously.

• The version designed to reduce repetition rates mainly rewrites the segments that are repetitive in the report.
• The AIGC version reduces focuses on adjusting mechanical expressions and sentence structures.
• The dual-reduction version is applicable to both the repetition rate and the AI suspicion rate.
• After rewriting, the terms, data, and citations should be checked again.
• Do not remove necessary citations or distort the original author’s views.
• Weight reduction services must not be used to conceal plagiarism.

Quality inspection of research images and papers

In addition to text plagiarism checking, the page also lists services such as scientific image detection, format verification, proofreading, and reference evaluation.

Tutorial for using the paper plagiarism detection tool

1. First, confirm the testing system designated by the school, journal, or supervisor.
2. Select a system and version that are exactly the same on the page.
3. Check the language, word count, file format, and detection scope.
4. Remove any personal privacy information and irrelevant attachments that should not be uploaded.
5. Prepare the documents as required and standardize the file names.
6. Upload the paper and check the number of characters identified.
7. Confirm the billing unit, estimated time, and report retention period.
8. Complete the online payment and save the order details.
9. Wait for the task to complete before downloading the full report.
10. Check each duplicate segment against the original source.
11. Modify according to academic standards while retaining proper citations.
12. If necessary, use the designated system to carry out the final inspection.

How to prepare before uploading a paper

• Give priority to using document formats that are explicitly supported by the page.
• Check whether the document exceeds the size or character limit.
• Keep the table of contents, appendices, and references as required by the school.
• Remove ID numbers, phone numbers, and other personal information that should not be made public.
• Back up the original paper and each revised version.
• Do not use the same order for unrelated papers.

How to read a test report

The report usually includes the overall similarity score, duplicate sources, segment markings, and chapter results; emphasis should be placed on specific evidence rather than individual numbers.

1. First, verify the title, author, and word count in the report.
2. Check whether the system version matches the purchased item.
3. View the overall similarity and the proportion of each section.
4. Open the highly repetitive segments and their corresponding sources.
5. Distinguish between legitimate citation, template text, and improper reuse.
6. Add missing quotes, footnotes, and references.
7. Reorganize the content that needs to be modified using your own arguments.
8. After making the changes, read the context manually again.

Why are the test results different?

• Different systems use different comparison databases.
• The update times of the literature databases are not exactly the same.
• The word segmentation, semantic matching, and threshold algorithms are different.
• There are differences in the identification of directories, citations, and references.
• The uploaded version and formatting may affect text extraction.
• AIGC detection models and evaluation criteria vary.
• School-specific libraries may not be available to the personal version.

Price and version comparison

The following are some of the prices displayed during page verification; the system lists and amounts may change dynamically, and the information on the order confirmation page should be taken as the reference before making a payment.

What to consider when choosing a package

Testing time and report storage

The typical detection times indicated on the page range from 1 minute to 60 minutes; the actual time depends on the system, the length of the content, and peak usage periods.

• Some versions on Wanfang indicate a duration of around 1 to 5 minutes.
• Earlier reductions in weight are indicated for certain versions as lasting around 5 to 30 minutes.
• CheckPass indicates a time of around 2 to 20 minutes.
• Turnitin and image detection usually take longer.
• Delays may occur during peak periods and for very long papers.
• Some sub-pages indicate that reports are retained for 7 days.
• Once completed, it should be downloaded immediately and backed up locally.

Data security and privacy

Papers may contain unpublished research, personal information, and experimental data; therefore, the risks associated with data processing by third-party platforms should be assessed before uploading them.

• Remove information such as ID numbers, phone numbers, and signatures.
• Do not upload unpublicized patents or confidential projects casually.
• Internal school materials must comply with the organization’s confidentiality policies.
• Use a separate password and save the order confirmation.
• After the test is completed, download the report promptly and store it properly.
• For sensitive papers, prefer to use the channels designated by the school.

Points to consider regarding academic integrity

Plagiarism checking and AI detection are auxiliary tools for evaluation; they cannot replace the author’s responsibility for ensuring originality, accuracy of facts, and proper citation practices.

• All citations must indicate the actual source.
• Do not conceal others’ views by using synonyms.
• After being rewritten by AI, the facts and logic must be manually verified.
• Comply with the school’s rules regarding the use of generative AI.
• Retain records of the research process, data, and versions.
• Do not fabricate experiments, images, literature, or author information.

API and open-source status

The current page is primarily designed for online uploading, payment processing, and report downloading; no developer API available for this interface has been found.

• No verifiable official GitHub repository was found.
• The third-party brands listed on the page may each have their own separate interfaces.
• Third-party brand interfaces cannot be considered as part of the capabilities of this entry point.
• For bulk or institutional purchases, separate contracts and authorizations must be established.
• Do not use automated upload scripts of unknown origin to process papers.

Which users are it suitable for

Product advantages

• A single page allows for the comparison of multiple detection systems.
• It covers scenarios in Chinese, English, and some minor languages.
• It also provides similarity measurement and AIGC detection.
• It includes rewriting, grammar, and scientific illustration services.
• Most projects clearly indicate the billing unit.

Usage restrictions

• The platform serves as a centralized entry point; it is not the unified official website for all brands.
• The classification of AI illustrations in the database does not match the actual products.
• Prices and available systems may change dynamically on the page.
• The results on the personal version may differ from those in the school’s official system.
• The AIGC score does not directly prove that the author used AI.
• The report has a limited retention period, so it needs to be downloaded promptly.
• No public APIs or official open-source projects have been identified.

Frequently Asked Questions

Is the paper plagiarism checking site the official website for such checks?

It is an aggregation detection portal under the CheckPass domain; it is not the unified official website for all the brands listed on the page, such as Wanfang, VIP, Turnitin, etc.

Can the plagiarism detection tool identify AIGC-generated content?

Yes, the page offers various detection options including Wanfang, VIP, Daya, MasterAIGC, Turnitin, as well as AI-based detection.

How much does the paper plagiarism checking service charge?

Different projects are charged per article, per thousand words, or per ten thousand words; the current pricing and rules for counting words shall be as indicated on the payment confirmation page.

Are the test results the same as those of the school system?

Not necessarily; the personal version and the school version may use different databases, algorithms, or specialized libraries, and the final version should be obtained through the channels designated by the school.

Can a paper be submitted directly after using AI to reduce its redundancy?

It is not recommended; rewriting may alter facts, terminology, and citation relationships, and it is necessary to verify each sentence manually while adhering to the university’s rules regarding academic integrity.

How long can a test report be kept?

Some test sub-pages indicate that the reports are retained for 7 days; therefore, they should be downloaded immediately after the task is completed and backed up securely locally.

Does the paper plagiarism checking service provide APIs or open-source code?

At present, no developer API made available through this aggregation endpoint, nor any official GitHub open-source repository, has been found.