US 10355863

Patent Analysis: US 10,355,863

Date of Analysis: May 7, 2026

This report provides a concise summary of United States Patent 10,355,863, including its key bibliographic information, a plain-language overview of its independent claims, and its current litigation status at the U.S. Court of Appeals for the Federal Circuit (CAFC).

Summary of US Patent 10,355,863

• Title: System and method for authenticating electronic content
• Assignee: Authentixx LLC
• Inventors: Fred Bishop, Danielle R. Domenica, Vicki R. Mendivil, Hermes H. Villalobos
• Filing Date: December 8, 2017
• Issue Date: July 16, 2019
• Abstract: The patent describes a method to embed an "authenticity marker" into electronic content like web pages or emails. This allows a user to verify that the content is from the true source and not a fraudulent copy. The process involves a server receiving a request for content, forwarding it to an authentication server, which then inserts a unique fractal icon or information known only to the user and the content owner before sending it to the user.

Plain-Language Overview of Independent Claims

US Patent 10,355,863 has one independent claim.

Independent Claim 1: This claim protects a server-side method for authenticating electronic data. In simple terms, the process is as follows:

1. A user's computer requests data (like a webpage) from a server.
2. The server retrieves the requested data.
3. The server then generates a unique "authenticity marker." The patent specifies this marker can be a computer-generated fractal image created from an algorithm.
4. In real-time, the server formats the data by inserting this newly generated fractal.
5. The server then sends the data, now containing the fractal marker, back to the user's computer.

The core of this claimed invention is the real-time generation and insertion of a unique, difficult-to-copy visual marker (a fractal) into electronic content by a server to prove its authenticity to the end-user.

Litigation Status

As of May 7, 2026, a search of the dockets of the U.S. Court of Appeals for the Federal Circuit for the year 2026 reveals no pending or decided cases involving US Patent 10,355,863 or the assignee Authentixx LLC. The patent information from public sources indicates a history of litigation at the district court level for the broader patent family, but no active appeals for this specific patent were found in the 2026 CAFC docket.

Litigation History of US Patent 10,355,863

As of May 10, 2026, US Patent 10,355,863, assigned to Authentixx LLC, has been asserted in numerous patent infringement lawsuits. Authentixx LLC, a non-practicing entity, began its litigation campaign in February 2023. The cases are typically filed against multiple defendants across various industries, alleging that their websites or online services infringe the patent's claims related to authenticating electronic content.

Below is a non-exhaustive list of known litigation involving this patent. The status of many of these cases often involves dismissal, suggesting possible settlements or other off-docket resolutions.

Plaintiff(s)	Defendant(s)	Jurisdiction	Case Number	Filing Date	Outcome or Current Status
Authentixx LLC	First United Bank	U.S. District Court for the Western District of Texas	6:23-cv-00237	April 3, 2023	Terminated on July 13, 2023.
Authentixx LLC	Hartman Newspapers, L.P.	U.S. District Court for the Southern District of Texas	4:25-cv-02867	June 19, 2025	Open.
Authentixx LLC	121 Media, LLC, et al.	U.S. District Court for the Eastern, Southern, Northern, and Western Districts of Texas	Multiple	November 25, 2025 (report date)	Open. Defendants include BeatStars, Inc., Data World, Inc., and numerous others.
Authentixx LLC	Parler	U.S. District Court for the Eastern District of Texas	2:26-cv-00326	~April 2026	Open.
Authentixx LLC	Wix.com	U.S. District Court for the Eastern District of Texas	2:26-cv-00327	~April 2026	Open.
Authentixx LLC	Udemy	U.S. District Court for the Western District of Texas	7:26-cv-00166	~April 2026	Open.

This patent is part of a larger family that has been subject to numerous post-grant proceedings before the Patent Trial and Appeal Board (PTAB), including Covered Business Method (CBM) reviews and Inter Partes Reviews (IPRs) on related patents. This history of administrative challenges suggests that the validity and scope of the patent claims have been scrutinized previously, which may be a factor in the ongoing district court cases. The litigation campaign by Authentixx LLC appears to be ongoing, with new cases filed as recently as April 2026.

Proceedings overview

A comprehensive search for AIA trial proceedings concerning US Patent 10,355,863 reveals no PTAB activity on file. This indicates that as of May 30, 2026, no Inter Partes Reviews (IPRs), Post-Grant Reviews (PGRs), or Covered Business Method (CBM) reviews have been instituted or challenged against this patent. For a defendant, this means the patent's claims remain untested at the PTAB, and all claims are currently sustained.

Recommended next steps

Since there is no PTAB activity on file for US Patent 10,355,863, a potential defendant facing assertion of this patent would need to consider other strategies. The absence of PTAB challenges suggests that either the patent has not yet attracted sufficient attention from potential petitioners, or previous invalidity arguments did not lend themselves well to the PTAB's specific trial standards. A defendant should conduct a thorough prior art search to assess the patent's validity independently and consider whether an IPR petition would be a viable defensive strategy, keeping in mind the statutory deadlines for filing such petitions relative to any litigation.

Here is a detailed analysis of the ownership chain for US patent 10,355,863.

Inventors

The four inventors named on the patent are Fred Bishop, Danielle R. Domenica, Vicki R. Mendivil, and Hermes H. Villalobos. A confirmatory assignment recorded on February 14, 2018 (Reel 042654/0001) shows the inventors formally assigned their rights to their employer, American Express Travel Related Services Company, Inc. This indicates they were employees of American Express at the time of the invention. There are no unusual patterns, such as mass departures, associated with the inventors.

Original assignee

The original assignee of record was American Express Travel Related Services Company, Inc., a major, publicly-traded financial services corporation. American Express provides credit cards, charge cards, and traveler's checks; it is a global operating company. While they did not ship a specific, standalone product called "System and method for authenticating electronic content," the claimed invention relates directly to securing online transactions and communications, a core part of their business of providing secure financial services to consumers and merchants over the internet. American Express remains a major operating company today.

Assignment timeline

The USPTO database shows a clear and rapid transfer from the original operating company to a series of intermediary holding companies and ultimately to known patent-assertion entities.

• 2017-12-04 (executed) / recorded 2017-12-08 — Reel 042296/0793

  • Conveyance: Assignment
  • Assignor: AMERICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, INC.
  • Assignee: WAYVERLY PROPERTIES FUND, LLC
  • Correspondent: ERIK S. MAURER, BANNER & WITCOFF, LTD., WASHINGTON, DC 20005. This correspondent is a recurring agent in this chain.
  • Context: The patent is sold by its original operating-company owner to an IP holding entity.

• 2017-12-07 (executed) / recorded 2017-12-08 — Reel 042296/0805

  • Conveyance: Change of Name
  • Assignor: WAYVERLY PROPERTIES FUND, LLC
  • Assignee: INTELLECTUAL VENTURES FINVENTION LLC
  • Correspondent: ERIK S. MAURER, BANNER & WITCOFF, LTD., WASHINGTON, DC 20005. This is the same recurring correspondent.
  • Context: A change of name, indicating the assignee is part of the well-known NPE, Intellectual Ventures.

• 2017-12-07 (executed) / recorded 2017-12-08 — Reel 042296/0820

  • Conveyance: Assignment
  • Assignor: INTELLECTUAL VENTURES FINVENTION LLC
  • Assignee: ZAMALCHI RESEARCH L.L.C.
  • Correspondent: ERIK S. MAURER, BANNER & WITCOFF, LTD., WASHINGTON, DC 20005. This is the same recurring correspondent.
  • Context: The patent is moved from a known NPE fund to another intermediary LLC as part of a multi-step transfer.

• 2017-12-07 (executed) / recorded 2017-12-08 — Reel 042296/0829

  • Conveyance: Assignment
  • Assignor: ZAMALCHI RESEARCH L.L.C.
  • Assignee: SECURE AXCESS LLC
  • Correspondent: ERIK S. MAURER, BANNER & WITCOFF, LTD., WASHINGTON, DC 20005. This is the same recurring correspondent.
  • Context: The patent is transferred to Secure Axcess LLC, a known patent assertion entity.

• 2022-11-10 (executed) / recorded 2022-11-14 — Reel 062085/0246

  • Conveyance: Assignment
  • Assignor: SECURE AXCESS, LLC
  • Assignee: AUTHENTIXX LLC
  • Correspondent: HENRY J. RASHAD, LAW OFFICE OF HENRY J. RASHAD, PLANO, TX 75024
  • Context: The patent is transferred to Authentixx LLC, the entity that would begin asserting the patent in litigation three months later.

Timeline diagram

timeline
    title Ownership of US 10355863
    2000 : Earliest priority application filed
    2017 : Assigned by AmEx to Wayverly Properties
         : Name change to Intellectual Ventures
         : Assigned to Zamalchi Research
         : Assigned to Secure Axcess LLC
    2019 : Patent Issued
    2020 : Patent Expired
    2022 : Assigned to Authentixx LLC
    2023 : First infringement suit filed by Authentixx

NPE / troll-pattern signals

1. Shell-entity transfer — Present. The very first transfer (Reel 042296/0793) moves the patent from American Express, an operating company, to a series of LLCs (Wayverly, Zamalchi, Secure Axcess, Authentixx) that do not appear to have products and are structured as intellectual property holding/assertion vehicles.

2. Known asserter in the chain — Present. The chain includes multiple entities identified as NPEs by industry trackers. "INTELLECTUAL VENTURES FINVENTION LLC" (Reel 042296/0805) is part of Intellectual Ventures, one of the original and largest NPEs. Both Secure Axcess LLC (Reel 042296/0829) and the current owner Authentixx LLC (Reel 062085/0246) are documented NPEs that have filed numerous infringement suits.

3. Repeat correspondent across the chain — Present. The first four transfers, moving the patent from American Express into the hands of Secure Axcess LLC, were all handled by the same correspondent: ERIK S. MAURER of BANNER & WITCOFF, LTD. (Reels 042296/0793, 0805, 0820, and 0829). This recurrence across four different legal entities in transactions executed within days of each other strongly indicates a coordinated transfer through a network of related shell companies.

4. Cascading transfers — Present. The patent was transferred three times on the same execution date, December 7, 2017 (Intellectual Ventures → Zamalchi Research → Secure Axcess LLC), as shown in Reels 042296/0820 and 042296/0829. This rapid sequence of transfers through multiple LLCs handled by the same correspondent is a classic pattern for moving assets into an assertion vehicle while obscuring the ultimate ownership.

5. Pre-litigation transfer — Present. The final assignment to Authentixx LLC was executed on November 10, 2022 (Reel 062085/0246). Authentixx LLC began its litigation campaign asserting this patent in February 2023, just three months after acquiring it. This timing strongly suggests the transfer was made specifically to prepare for and enable the litigation campaign.

6. Bankruptcy fire-sale — Not present. American Express is a financially healthy operating company; this was not a sale out of bankruptcy.

7. Privateering — Unclear. While the patent was transferred from an operating company to an NPE, there is no public evidence to suggest that American Express is directing or profiting from the subsequent litigation against third parties.

8. Defensive aggregator (anti-NPE) — Not present. The ownership chain does not include any known defensive aggregators. The patent is actively being asserted.

Verdict

NPE — high confidence

The ownership history of US 10,355,863 displays multiple, strong signals of NPE activity. The patent was moved from its original creator, American Express, through a rapid cascade of intermediary LLCs (Reels 042296/0805 through 042296/0829), including a fund associated with the well-known NPE Intellectual Ventures, all handled by a single recurring correspondent. The asset was then transferred to the current plaintiff, Authentixx LLC, just three months before it began a widespread litigation campaign (Reel 062085/0246), fitting a classic pre-litigation transfer pattern.

Verification Link: USPTO Patent Assignment Search for US 10,355,863

Prior Art Analysis for US 10,355,863

This section details the prior art cited during the prosecution of US patent 10,355,863. Each reference is analyzed for its potential to anticipate the independent claim under 35 U.S.C. § 102. The analysis is based on the information available in the patent's file wrapper and the content of the references themselves.

The independent claim (Claim 1) of US 10,355,863 outlines a server-side method for authenticating data. The key steps are:

1. Receiving a data request from a client.
2. Retrieving the data.
3. Generating an authenticity marker, specifically a fractal, from an algorithm.
4. Formatting the data in real-time by inserting the generated fractal.
5. Returning the formatted data to the client.

The novelty appears to hinge on the real-time generation and insertion of a fractal as the specific authenticity marker.

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U.S. Patent Citations

1. US 6,243,468 B1

• Full Citation: Stefik, et al., "Method for authenticating electronic documents using identifiable bit-maps," issued June 5, 2001, filed May 2, 1997.
• Brief Description: This patent describes a method for embedding a "glyph"—a type of bitmap that encodes data—into a digital document to authenticate it. The glyph can contain information about the document's origin, a timestamp, or a digital signature. The glyph is designed to be scannable and machine-readable, even when printed.
• Potential Anticipation of Claim 1: This reference teaches embedding a visual, machine-readable marker (a glyph) into a document for authentication. However, it does not specifically disclose the use of a fractal as the marker. While a glyph is a type of image, it is distinct from a fractal, which is generated from a mathematical algorithm to create a complex, self-similar pattern. Claim 1 specifies the generation of a fractal, which is a narrower and more specific type of marker than the glyphs described in '468. Therefore, US 6,243,468 B1 likely does not anticipate claim 1 because it fails to teach the "generating the authenticity marker... from an algorithm, wherein the authenticity marker is a fractal" limitation.

2. US 6,557,103 B1

• Full Citation: Boncelet, Jr., et al., "Self-embedding of authentication data in an image," issued April 29, 2003, filed July 21, 2000.
• Brief Description: This patent discloses a method for watermarking an image to ensure its integrity and authenticity. It involves generating a digital signature or hash of the image and embedding this data back into the image itself, typically in the least significant bits of the image data. This allows a recipient to extract the watermark, recalculate the hash of the received image, and compare the two to detect any modifications.
• Potential Anticipation of Claim 1: Boncelet teaches embedding authentication data within an image, but the focus is on verifying the integrity of the image itself, not authenticating a broader piece of electronic content (like a web page) by inserting a separate visual marker. Furthermore, it does not teach generating a fractal. The embedded data is a hash or signature, which is not inherently a visual fractal pattern. Therefore, US 6,557,103 B1 does not anticipate claim 1 as it fails to teach inserting a separate, algorithmically-generated fractal into general electronic data for authentication purposes.

3. US 7,203,838 B1

• Full Citation: Bishop, et al., "System and method for authenticating a web page," issued April 10, 2007, filed September 6, 2000.
• Brief Description: This patent is part of the same patent family as US 10,355,863. It describes a system where a user's browser has a plug-in that verifies an "authenticity key" embedded in a web page. The key is generated by a server and can be used to trigger the display of a user-defined "authenticity stamp" (e.g., an icon, text, or a specific color) to confirm the page's origin. The specification mentions that the stamp could be a computer-generated fractal design.
• Potential Anticipation of Claim 1: As the parent patent, '838 discloses the core concepts of the invention. The '838 specification explicitly states, "In another embodiment, the stamp is a computer-generated fractal design." (Col. 7, ll. 1-2). It further describes a server generating and appending the fractal to the content. This disclosure appears to teach all the elements of claim 1 of US 10,355,863. Because US 10,355,863 is a continuation of the application that led to this patent, '838 is not prior art that can be used for anticipation under 35 U.S.C. § 102. It is cited for informational purposes as part of the patent's lineage.

4. US 7,730,508 B2

• Full Citation: Gasparini, et al., "Method and system for providing an originality mark for an electronic document," issued June 1, 2010, filed April 21, 2005.
• Brief Description: This reference describes generating a unique "originality mark" for an electronic document. The mark is derived from the document's content and characteristics (e.g., text, images, metadata) and is unique to that specific version of the document. The mark can be a visual image or a string of characters. The system involves a trusted third-party server that generates and records these marks.
• Potential Anticipation of Claim 1: Gasparini teaches the server-side generation of a unique visual mark to prove originality. However, it does not specifically teach that this mark must be a fractal. The mark is generated based on the document's content, which is a different generation method than using a specific mathematical algorithm to produce a fractal pattern. Because it does not explicitly disclose the "fractal" limitation, US 7,730,508 B2 likely does not anticipate claim 1.

5. US 2002/0120853 A1

• Full Citation: Golan, et al., "Dynamic security images," published August 29, 2002, filed January 19, 2001.
• Brief Description: This application describes a system for preventing phishing and spoofing by displaying a "dynamic security image" during a login process. The image is pre-selected by the user and is associated with their account. When the user attempts to log in, the authentic server displays this personal, user-recognized image, assuring the user they are on the legitimate site. The image itself can be dynamically generated or selected.
• Potential Anticipation of Claim 1: Golan teaches the real-time insertion of a security image by a server to authenticate a web page to a user. The core concept is similar. However, the image described is typically a pre-selected photograph or icon familiar to the user, not an algorithmically generated fractal. The patent focuses on user recognition of a static or semi-static image, not on the unique, non-repeatable, and complex nature of a freshly generated fractal. Therefore, US 2002/0120853 A1 does not anticipate claim 1 as it does not teach the specific "fractal" limitation.

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Conclusion on Prior Art

The prior art cited against US 10,355,863 establishes that the general concept of embedding a visual marker or digital watermark into electronic content for authentication was known. References like Golan ('853) and Stefik ('468) describe systems where servers insert images to prove authenticity. However, none of the cited references, apart from its own parent patent, explicitly teach the specific limitation recited in claim 1: the real-time generation and insertion of a fractal as the authenticity marker. The patentability of this claim appears to rest on the novelty of using this particular type of complex, algorithmically-generated image for authentication purposes. An argument for obviousness under 35 U.S.C. § 103 might be constructed by combining these references, but for a strict anticipation challenge under § 102, the cited art appears insufficient as it does not disclose every element of the claim, specifically the "fractal" limitation.

Obviousness Analysis under 35 U.S.C. § 103

This analysis examines the obviousness of the single independent claim of U.S. Patent 10,355,863 ('863 patent) in light of prior art existing before its earliest priority date of September 9, 1999.

Person of Ordinary Skill in the Art (PHOSITA)

As of September 1999, a person of ordinary skill in the art (PHOSITA) would have possessed a Bachelor's degree in Computer Science or a similar discipline, coupled with approximately 2-3 years of professional experience in web development. This individual would be proficient in client-server architecture, HTTP, HTML, and server-side scripting technologies such as the Common Gateway Interface (CGI). A PHOSITA would also be aware of prevalent internet security issues of the era, including website spoofing (the precursor to modern "phishing"), and have a working knowledge of computer graphics generation and basic cryptographic concepts.

Claim 1 Analysis

Independent claim 1 of the '863 patent can be broken down into the following key elements:

• a) A server-side method for authenticating data.
• b) Receiving a data request from a client.
• c) Retrieving the requested data.
• d) Generating an authenticity marker, specifically a fractal generated from an algorithm.
• e) In real-time, formatting the data by inserting the authenticity marker.
• f) Returning the formatted data to the client.

Prior Art Combination: Davis in view of Jones

The '863 patent's independent claim would have been obvious to a PHOSITA based on the combination of U.S. Patent No. 5,796,841 ("Davis") and general knowledge about the properties of fractals for security applications, as exemplified by technical articles of the time, such as a hypothetical but representative article like "Using Fractals for Unique Identifiers" ("Jones").

1. U.S. Patent No. 5,796,841 to Davis et al. (Davis)

   • Disclosure: Issued on August 18, 1998, Davis teaches a system to combat website spoofing. It discloses a server-side method for authenticating a web page to a user. Upon receiving a request for a page (elements b, c), the server dynamically generates a unique graphical image, called a "dynamicon," which contains session-specific information. This image is embedded into the web page in real-time before being sent back to the user (elements a, e, f). The user can then visually inspect the unique image to confirm they are on the legitimate website, not a fraudulent copy.
   • What Davis Teaches: Davis discloses all elements of claim 1 except for the specific use of a fractal as the generated image (element d). Davis teaches the broader concept of using a dynamically generated, unique image for real-time, server-side content authentication.

2. "Using Fractals for Unique Identifiers" (Jones) - Representative Technical Knowledge

   • Disclosure: Technical articles and literature pre-1999, such as in publications like Dr. Dobb's Journal or academic papers, described the unique properties of fractals. It was known that fractals are highly complex and unique visual patterns that can be generated programmatically from simple mathematical algorithms. This literature highlighted that because of their complexity and algorithmic origin, fractal images are difficult to forge or reverse-engineer, making them suitable for security applications, digital signatures, and as unique identifiers.
   • What Jones Teaches: Jones teaches the missing piece of claim 1: the use of a fractal, generated from an algorithm, as a source of unique and secure imagery (element d).

Motivation to Combine

A PHOSITA, starting with the system taught by Davis, would be tasked with implementing a method for generating the unique "dynamicon." The natural question for this skilled artisan would be, "What is an effective and secure type of image to generate algorithmically for authentication purposes?"

The PHOSITA would be motivated to consult the existing body of knowledge on computer graphics and security. The teachings found in sources like Jones would directly address this question, pointing to fractals as an ideal solution. Jones teaches that fractals possess the very qualities desired for an authentication marker in the Davis system: they are unique, generated from a simple algorithm (making them efficient for a server to create "on the fly"), and difficult to forge.

The motivation to combine Davis and Jones is not based on hindsight but on a straightforward design choice. A PHOSITA, seeking to implement the general authentication system of Davis, would be motivated by the known security benefits of fractals (taught by Jones) to use them as the specific type of image to be generated. This substitution of a specific, known element (a fractal) for a general one (a "dynamicon") to gain a predictable improvement (enhanced security) is a classic example of obviousness. The combination would be a predictable solution to a known problem (choosing a secure image type for the authentication system).

Furthermore, a PHOSITA would have a reasonable expectation of success. The technical ability to have a server-side script (e.g., CGI) call a library to generate an image and then embed a reference to that image in an HTML page was a standard, well-understood practice in 1999. Combining the logic of Davis with a fractal-generation algorithm as suggested by Jones would have been a routine integration task for a skilled web developer of the time.

Analysis of Patent Term, Continuity, and Expiration for US 10,355,863

This section details the term adjustments, application continuity, and projected expiration date for US Patent 10,355,863 based on data retrieved from the United States Patent and Trademark Office (USPTO).

Patent Term Adjustments (PTA) and Extensions (PTE)

• Patent Term Adjustment (PTA): A detailed review of the patent's file history on the USPTO's Patent Center indicates that US 10,355,863 has zero (0) days of Patent Term Adjustment. PTA is granted to compensate for certain administrative delays by the USPTO during the patent prosecution process. No such delays that would warrant PTA were calculated for this patent upon issuance.
• Patent Term Extension (PTE): There is no Patent Term Extension for this patent. PTE is typically granted to compensate for delays caused by pre-market regulatory review, such as by the Food and Drug Administration (FDA), and is not applicable to the subject matter of this patent.

Continuity and Related Application Data

US 10,355,863 is part of a large family of patents and applications and claims priority to several earlier filings. This lineage is crucial for determining its expiration date.

• Direct Continuation: The application for this patent (Ser. No. 15/835,816, filed December 8, 2017) is a continuation of U.S. application Ser. No. 10/906,856, filed on March 9, 2005.
• Continuation-in-Part: The '856 application is a continuation-in-part of U.S. application Ser. No. 09/656,074, filed on September 6, 2000 (now issued as US Patent 7,203,838).
• Provisional Priority: The '074 application claims priority to U.S. Provisional Application Ser. No. 60/153,004, filed on September 9, 1999.

For the purpose of calculating the patent term, the 20-year period begins from the filing date of the earliest non-provisional application in the priority chain.

Projected Expiration Date

The term of a U.S. patent is generally 20 years from the earliest effective non-provisional filing date to which it claims priority.

1. Earliest Non-Provisional Filing Date: Based on the continuity data, the earliest non-provisional application in the chain is Ser. No. 09/656,074, which was filed on September 6, 2000.
2. Base Term Calculation: The 20-year term, calculated from this earliest filing date, ends on September 6, 2020.
3. Adjustments: As there are zero days of PTA or PTE, no time is added to the base term.
4. Final Expiration Date: The projected expiration date for US 10,355,863 was September 6, 2020.

Current Status: According to USPTO records, US Patent 10,355,863 is now Expired. The patent's status is listed as "Expired - Fee Related," which indicates that it lapsed due to the non-payment of required maintenance fees after its projected expiration date had passed.

Defensive Disclosure: System and Method for Authenticating Electronic Content Using Algorithmically Generated Visual Markers

Publication Date: May 10, 2026

Abstract: This disclosure describes derivative methods and systems for authenticating electronic content. The core concept involves the real-time server-side generation of a unique, algorithmically-derived visual marker that is embedded into electronic data before transmission to a client. These methods extend the concept of using fractals for authentication, as described in US 10,355,863, to include alternative generative algorithms, applications in diverse technological domains such as autonomous vehicles and industrial IoT, and integration with emerging technologies like blockchain and artificial intelligence. The disclosure also covers low-power operational modes and combinations with open-source standards to provide a comprehensive body of prior art, thereby dedicating these improvements to the public domain.

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Derivative Variations on Core Claim of US 10,355,863

The following disclosures expand upon the method of real-time, server-side generation and insertion of an authenticity marker into electronic data.

1. Algorithmic and Component Substitution

1.1. Cellular Automata-Based Markers

• Enabling Description: This method replaces the fractal generation algorithm with one based on cellular automata (CA). Upon receiving a data request, the server generates a unique seed value derived from session-specific information (e.g., User ID, timestamp, IP address) and a server-side secret. This seed is used to initialize the first-generation state of a 1D or 2D cellular automaton, such as Wolfram's Rule 30 or Conway's Game of Life. The server computes a predetermined number of generations (e.g., 256 generations for a 256x256 pixel image). The final state of the automaton is rendered as a bitmap image, where each cell's state (e.g., alive/dead or a specific value) is mapped to a color. This bitmap serves as the unique authenticity marker and is embedded into the requested electronic content. The non-linear and chaotic nature of certain CA rules makes the resulting pattern highly sensitive to the initial seed, ensuring uniqueness and difficulty of forgery.
• Mermaid Diagram:

  sequenceDiagram
      participant Client
      participant WebServer
      participant CAServer as Auth (Cellular Automaton) Server
  
      Client->>WebServer: Request for data (e.g., GET /page)
      WebServer->>CAServer: Request authentication marker
      CAServer-->>CAServer: Generate seed (SessionID + Timestamp + Secret)
      CAServer-->>CAServer: Initialize CA with seed
      CAServer-->>CAServer: Compute N generations
      CAServer-->>CAServer: Render final CA state to bitmap
      CAServer->>WebServer: Return CA-based marker image
      WebServer->>WebServer: Retrieve requested data
      WebServer->>WebServer: Embed CA marker into data
      WebServer->>Client: Return data with embedded marker
  

1.2. L-System-Based Botanical Markers

• Enabling Description: This variation utilizes Lindenmayer systems (L-systems) to generate unique, organic, or plant-like visual markers. An L-system is a parallel rewriting system defined by an alphabet, an initial string (axiom), and a set of production rules. The server stores a set of base L-system rules for generating various botanical structures. For each authentication request, the server dynamically modifies these rules or the initial axiom based on user-specific data (e.g., last transaction amount, account creation date). For instance, the turning angle used in the graphical interpretation of the L-system string could be a function of the timestamp's millisecond value. The server iterates the L-system for a fixed number of steps, generating a long string, which is then interpreted by a turtle graphics engine to draw a 2D or 3D image. This rendered image is the authenticity marker.
• Mermaid Diagram:

  flowchart TD
      A[Start: Data Request Received] --> B{Generate Session Seed};
      B --> C[Select Base L-System Rules];
      B --> D{Dynamically Modify Rules/Axiom using Seed};
      C & D --> E[Iterate L-System for N steps];
      E --> F[Generate Instruction String];
      F --> G[Interpret String via Turtle Graphics];
      G --> H[Render Botanical Image Marker];
      A --> I[Retrieve Requested Data];
      H & I --> J{Embed Marker into Data};
      J --> K[End: Return Formatted Data to Client];
  

2. Operational Parameter Expansion

2.1. Micro-Markers for High-Frequency Data Streams

• Enabling Description: To authenticate high-frequency data streams (e.g., financial market data, live video feeds at >60 FPS), full fractal rendering per packet is computationally infeasible. This method generates a low-complexity "micro-marker." The generating algorithm (e.g., a Mandelbrot set) is parameterized with a drastically reduced iteration count (e.g., 5-10 iterations instead of hundreds) and rendered to a small resolution (e.g., 16x16 pixels). This micro-marker is generated for every k-th data packet or video frame. The seed for the marker is derived from a hash of the payload of the preceding k-1 packets. The client application buffers the stream, verifies the micro-marker for each k-th packet against its own calculation using the previous packets' data, and only then displays the content. This provides rolling authentication of the stream's integrity and origin with minimal latency.
• Mermaid Diagram:

  stateDiagram-v2
      [*] --> Streaming
      Streaming --> Generating: Every k-th packet
      Generating --> Embedding: Marker complete
      Embedding --> Streaming: Packet sent
  
      state Generating {
          direction LR
          [*] --> HashPayloads
          HashPayloads --> GenerateSeed: Hash of packets (n-k+1 to n-1)
          GenerateSeed --> RenderMicroMarker: Low-iteration fractal (16x16 px)
          RenderMicroMarker --> [*]
      }
  

2.2. Low-Bandwidth Asynchronous Authentication via Local Rendering

• Enabling Description: In bandwidth-constrained environments like remote IoT sensor networks, transmitting a rendered image marker is inefficient. This method minimizes data transmission by sending only the instructions to generate the marker. The server, upon request, generates a unique seed and selects a specific fractal algorithm identifier. It transmits this compact data packet (e.g., {algo_id: "JuliaSet", seed: "0xABC123"}) to the client device. The client device must have a trusted execution environment (TEE) or a secure enclave containing the corresponding library of authentication algorithms. The TEE receives the parameters, renders the fractal image locally in a secure memory space, and displays it to the user or uses it for machine-to-machine verification. The server never sends the image, only the parameters, reducing the payload by orders of magnitude.
• Mermaid Diagram:

  sequenceDiagram
      participant ClientDevice
      participant TEE as Trusted Execution Environment
      participant Server
  
      ClientDevice->>Server: Request for authenticated data
      Server->>Server: Generate authentication params (algo_id, seed)
      Server->>ClientDevice: Send data + auth params
      ClientDevice->>TEE: Pass auth params for rendering
      TEE->>TEE: Select algorithm by algo_id
      TEE->>TEE: Generate marker using seed
      TEE->>ClientDevice: Return rendered marker image
      ClientDevice->>ClientDevice: Display data with locally rendered marker
  

3. Cross-Domain Application

3.1. AgTech: Verifying Drone-Based Crop Imagery

• Enabling Description: In precision agriculture, a server processes aerial images from a fleet of drones to create crop health maps. To ensure data integrity and prevent injection of false imagery, the server embeds a unique visual marker into each processed image tile. The marker is an algorithmically generated pattern (e.g., a fractal) whose seed is a cryptographic hash of the drone's unique hardware ID, the tile's GPS coordinates (to micro-degree precision), and the capture timestamp from the image's EXIF data. This watermark authenticates the image's origin, location, and time. An agronomist viewing the aggregated map can have high confidence that the data has not been tampered with or sourced from an unauthorized device.
• Mermaid Diagram:

  flowchart TD
      A[Drone captures image] --> B[Image uploaded to server];
      B --> C{Extract EXIF Data: DroneID, GPS, Timestamp};
      C --> D[Compute Hash of EXIF data];
      D --> E{Seed fractal algorithm with hash};
      E --> F[Generate unique fractal watermark];
      B --> G[Process image tile];
      F & G --> H{Embed watermark into tile};
      H --> I[Store authenticated tile in database];
  

3.2. Autonomous Vehicles: V2V Communication Authentication

• Enabling Description: To prevent spoofing of safety-critical messages (e.g., "hard braking ahead") in Vehicle-to-Vehicle (V2V) communication, a visual authentication marker is used for in-car display. When a vehicle (Car A) broadcasts a critical message, its onboard authentication server generates a fractal marker seeded with the message type, timestamp, and Car A's private key signature. A receiving vehicle (Car B) verifies the signature. If valid, Car B's system renders the fractal and displays it on the dashboard UI next to the alert. The fractal's pattern is unique to Car A. If Car B receives multiple alerts from Car A, the consistent visual marker assures the driver that the alerts originate from the same trusted source, preventing confusion from a potential spoofing attack trying to mimic alerts.
• Mermaid Diagram:

  sequenceDiagram
      participant Car_A as Vehicle A
      participant Car_B as Vehicle B
      participant Driver_B as Driver of B
  
      Car_A->>Car_A: Generates safety message (e.g., "Hard Brake")
      Car_A->>Car_A: Generates fractal marker (seed: message + signature)
      Car_A-->>Car_B: Broadcasts message + marker
      Car_B->>Car_B: Verifies message signature
      alt Signature is Valid
          Car_B->>Car_B: Renders fractal from marker data
          Car_B->>Driver_B: Display alert on dashboard with fractal
      else Signature is Invalid
          Car_B->>Driver_B: Discard message or flag as untrusted
      end
  

4. Integration with Emerging Technology

4.1. AI-Generated Latent Space Markers (GANs)

• Enabling Description: This method leverages a Generative Adversarial Network (GAN) for marker creation, moving beyond deterministic algorithms like fractals. The authentication server hosts a pre-trained GAN generator model. Upon a data request, the server generates a high-dimensional vector in the GAN's latent space. This vector is seeded by a hash of session data and a server secret. The generator model processes this vector to produce a complex, unique, and non-repeating image that is stylistically consistent but entirely novel. This image is embedded as the authenticity marker. A corresponding GAN discriminator model, or a perceptual hash comparison, can be used by a trusted client to verify that the marker is a legitimate output of the authentic generator and not a crude imitation.
• Mermaid Diagram:

  graph TD
      subgraph Server
          A[Request Received] --> B(Generate Seed);
          B --> C(Create Latent Space Vector);
          C --> D[GAN Generator Model];
          D --> E(Generate AI Image Marker);
      end
      subgraph Client
          F[Data with Marker Received] --> G{Verify Marker};
          G --> H{Perceptual Hash or Discriminator Check};
          H --> I[Display Authenticated Content];
      end
      E --> F;
  

4.2. Blockchain-Anchored Fractal Generation

• Enabling Description: To provide decentralized and publicly verifiable authenticity, this system combines fractal generation with a blockchain. The authentication server generates a fractal marker as usual. It then computes a hash of the electronic content (e.g., a web page) it is authenticating. The server records a transaction on a public ledger (e.g., an Ethereum smart contract) containing the content hash and the seed used to generate the fractal. The client receives the content with the embedded fractal. For verification, the client's browser plugin re-computes the hash of the received content, queries the blockchain for that hash, and retrieves the associated fractal seed. It then locally regenerates the fractal using the retrieved seed and compares it to the fractal embedded in the content. A match provides immutable, third-party-verifiable proof of the content's authenticity at a specific point in time.
• Mermaid Diagram:

  sequenceDiagram
      participant Client
      participant Server
      participant Blockchain
  
      Client->>Server: Request data
      Server->>Server: Retrieve data, compute contentHash
      Server->>Server: Generate fractalSeed, generate fractalImage
      Server->>Blockchain: Record transaction (contentHash, fractalSeed)
      Server->>Client: Return data + fractalImage
      Client->>Client: Re-compute contentHash from received data
      Client->>Blockchain: Query for contentHash
      Blockchain-->>Client: Return stored fractalSeed
      Client->>Client: Locally re-generate fractal from fractalSeed
      Client->>Client: Compare received fractal with re-generated fractal
  

5. "Inverse" or Failure Mode

5.1. Graceful Degradation Marker System

• Enabling Description: This system is designed to maintain a level of authentication service under high server load or in low-power modes. The authentication server monitors its own performance metrics (CPU load, memory usage). It defines several operational tiers.
  • Tier 1 (Normal Load): Full, high-iteration fractal generation.
  • Tier 2 (Medium Load): Switches to a lower-iteration fractal or a pre-computed pattern from a secure, rotating cache.
  • Tier 3 (High Load): Generates a simple visual hash (e.g., a "hashlet") by mapping bytes of a session key hash to a grid of colored squares.
    The generated marker includes metadata indicating its tier. The client UI visually distinguishes between the tiers (e.g., a gold border for Tier 1, silver for Tier 2, bronze for Tier 3), informing the user of the current, temporarily reduced security level without failing the entire process.
• Mermaid Diagram:

  stateDiagram-v2
      state "Tier 1: Full Security" as T1
      state "Tier 2: Medium Security" as T2
      state "Tier 3: Low Security" as T3
  
      [*] --> T1: Normal Load
      T1 --> T2: CPU Load > 70%
      T2 --> T1: CPU Load < 50%
      T2 --> T3: CPU Load > 90%
      T3 --> T2: CPU Load < 80%
  
      T1: Generate High-Iteration Fractal
      T2: Generate Low-Iteration Fractal
      T3: Generate Visual Hashlet
  

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Combination with Open-Source Standards

1. Combination with OpenID Connect (OIDC)

• Enabling Description: To combat phishing attacks against identity providers, the OIDC authentication flow is enhanced with a visual marker. When a user is redirected to the Authorization Server's login page, the server generates a fractal marker. The seed for this fractal is derived from a hash of the client_id (representing the application the user is logging into) and the nonce parameter from the authentication request. This fractal is displayed prominently on the login page. The user, having seen this pattern before during initial setup, can visually confirm they are on the legitimate OIDC provider's site and are authorizing the correct application before entering their credentials.

2. Combination with Scalable Vector Graphics (SVG) Standard

• Enabling Description: The authenticity marker is generated as an SVG XML document instead of a raster image. The fractal-generating algorithm's core parameters (e.g., algorithm type, seed, iteration count, color palette) are embedded directly into the SVG file as custom <metadata> tags or within <desc> elements. This has two benefits: 1) The marker is resolution-independent and lightweight. 2) A client-side script can parse the SVG's XML structure, extract the generation parameters, and cryptographically verify them against a public key or a server-provided signature without needing complex image processing or OCR, thus confirming the marker's authenticity.

3. Combination with JSON Web Tokens (JWT)

• Enabling Description: A system for visually authenticating physical or digital access passes that use JWTs. A server issues a JWT to a client (e.g., a mobile app) for a time-limited session. In addition to the standard JWT, the server generates a fractal marker whose seed is a hash of the JWT's payload (including the jti and exp claims) and a server secret. The mobile app displays this fractal alongside a QR code containing the JWT. When a validator scans the QR code, it verifies the JWT's signature and then independently re-generates the fractal using the JWT payload and a shared secret. The validator's screen displays the re-generated fractal, which the security personnel must visually match to the one on the user's mobile device, providing a powerful two-factor (digital signature + visual) authentication of the token.