Invisible Code Embedding for AI-Generated Content Detection

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Solution Overview

Problem

Existing systems struggle to efficiently detect and differentiate content generated by generative AI, particularly in academic settings, leading to potential misuse and undermining academic integrity.

Innovation Solution

A method and system that embeds invisible codes within AI-generated content to enable detection by a third party, utilizing a monitoring module to intercept responses from generative AI models and insert codes in a specific pattern, allowing educators to identify AI-generated content through augmented reality or visual indicators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If invisible codes are embedded within AI-generated content to enable detection, then detection capability is improved, but device complexity increases

Engineering Contradiction:
Improvedetection capabilityVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system embeds invisible detection codes within AI-generated content at the source before the content reaches the user. This preliminary action enables third parties to detect AI-generated content without requiring complex analysis of the content itself, as the detection markers are already in place.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary detection mechanism where invisible codes serve as mediators between the generative AI system and third-party detectors. These codes act as a bridge that enables detection without requiring direct complex analysis of the generated content's semantic or structural properties.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If monitoring and code embedding is implemented at the generative AI model level, then detection reliability is improved, but processing time increases

Engineering Contradiction:
Improvedetection reliabilityVSAvoidprocessing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The monitoring module intercepts and embeds detection codes within the response generation process itself, before the content is returned to the user. This preliminary embedding ensures that detection is already prepared when the content is delivered, eliminating the need for time-consuming post-generation analysis.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system maintains continuous monitoring and code embedding during the normal response generation process, integrating the detection preparation into the existing workflow rather than adding separate processing steps. This allows detection readiness to be achieved without interrupting or significantly extending the content generation time.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS12556402B2AI-generated content detection
Publication Date: 2026.02.17 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US12556402B2 patent drawing
  • US12556402B2 patent drawing
  • US12556402B2 patent drawing

AI summary

A method for detecting content generated by artificial intelligence is disclosed. In one embodiment, such a method includes monitoring interaction between a user and a generative AI model. The method intercepts a response returned from the generative AI model to the user and embeds, within the response prior to its return to the user, codes that are invisible to the user when viewing the response. In certain embodiments, these codes are embedded within the response in a particular invisible code insertion pattern to indicate that the response was generated by the generative AI model. The method returns the response to the user for viewing. A third party may utilize the embedded codes to determine whether the response was generated by the generative AI model. A corresponding system and computer program product are also disclosed herein.