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Use this to extract the Profile ID and check for other "composite tags" that might indicate manipulation.
Tools available through educational spaces like FotoForensics ELA Tutorial allow analysts to pair metadata findings with compression analysis. If the uRGB profile footprint implies a save state from an external rendering framework, ELA will reveal visual anomalies at different error levels across modified image patches. 3. Algorithmic Machine Learning
If the hash is from an application, test common prefixes/suffixes:
To read an embedded color profile "in full", technical analysts rely on a suite of file parsing utilities. 1. Command-Line Processing 9d91003d4080b03d40742c819ea5228e full
The string is a specific Profile ID for an ICC (International Color Consortium) color profile named uRGB . This identifier is frequently found in the metadata of images, particularly those generated or processed by certain software tools. Core Technical Details Profile Name : uRGB Profile ID : 9d91003d4080b03d40742c819ea5228e Creation Date : March 20, 2018 (09:14:29) Profile Class : Display Device Profile Color Space : RGB Copyright : CC0 (Creative Commons Zero / Public Domain) Significance in Metadata Analysis
The original input might not be ASCII text. Could be UTF-16, a binary blob, or a number. Try decoding as little-endian integer, hex, or base64.
The profile contains detailed matrix columns and tone reproduction curves that define how red, green, and blue light are balanced: : 0.43604 0.22244 0.0139 Green Matrix Column : 0.3851 0.71693 0.09708 Blue Matrix Column : 0.14307 0.06062 0.71393 Use this to extract the Profile ID and
In the context of cybersecurity and digital forensics, this string is a signature of metadata within files, such as PDFs or images, that helps analysts identify the origin or processing history of a document. Essay: The Digital Fingerprint of Metadata
If you need to analyze an image to check if it contains the full uRGB 9d91003d4080b03d40742c819ea5228e signature, you can use automated extraction tools.
As discussed in digital metadata forensics forums like the ExifTool Forum , finding an ICC profile signature such as this one helps trace whether multiple images originated from the same software pipeline or device architecture. While raw hardware components generate camera-specific profiles, web screen captures or images compressed through a unified Windows/Microsoft utility often standardize on this specific footprint. 2. Identifying Automated Post-Processing Command-Line Processing The string is a specific Profile
This ensures that whether a user views the image on a phone, a tablet, or a desktop monitor, the colors look identical and do not suffer from shifts in saturation or hue. The Role of Hash IDs in Image Forensics
Minimal mock data (for testing)
If you are currently analyzing an image metadata log, let me know: or tool generated your report?
If you can provide the name of the program or game you're working with, I can help you identify exactly what this "feature" does.
When analyzing an image featuring this specific profile ID, forensic utilities reveal a consistent set of color properties. Below is the full technical configuration associated with this ID: Metadata Field Value / Specification 9d91003d4080b03d40742c819ea5228e Profile Description Profile Class Display Device Profile Color Space Data Profile CMM Type Little CMS Primary Platform Microsoft Corporation Profile Copyright CC0 (Public Domain) Rendering Intent Perceptual Red Matrix Column 0.43604 , 0.22244 , 0.0139 Green Matrix Column 0.3851 , 0.71693 , 0.09708 Blue Matrix Column 0.14307 , 0.06062 , 0.71393 🛠 What is uRGB and Little CMS? The uRGB Color Profile