Universal AI Media Format (Image)
image/prs.aimg
Released 2026
· by AI Media Format (ai-mf) Open-Source Project
The image/prs.aimg MIME type represents the image profile of the Universal AI Media Format (AIMF). Registered in the IANA Personal/Vanity tree in mid-2026, it is a specialized media container designed to cryptographically embed AI provenance, model generation parameters, and verification metadata alongside standard image data. Its header-first design enables rapid metadata extraction to authenticate whether an image was AI-generated or AI-modified, establishing a verifiable chain of custody for digital media.
Technical Specifications
.aimg
None (Pass-through to embedded payload)
Magic Bytes & HTTP Headers
Unknown
Browser Support Matrix
| Browser | Status | Min Version |
|---|---|---|
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Not Supported | — |
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Not Supported | — |
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Not Supported | — |
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Not Supported | — |
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Not Supported | Legacy |
Advantages & Limitations
- Provides a robust, tamper-evident cryptographic wrapper to definitively prove the origin of AI-generated media
- Header-first structure allows verifier nodes and APIs to validate an image's origin without needing to download or decode the entire massive pixel payload
- Lacks native rendering support in browsers, requiring server-side extraction or client-side WebAssembly to display the embedded image
- Utilizes the IANA 'prs.' (personal/vanity) tree rather than the standards tree, which can cause strict enterprise firewalls to reject the MIME type as unverified
Developer Code Snippets
File Detection Steps
How to programmatically detect a image/prs.aimg
file by reading its raw bytes:
- 1 Due to its novelty, standard magic file databases do not yet recognize AIMG files.
- 2 AIMG features a 'header-first' design; custom parsers must read the initial bytes to extract the cryptographic signatures before reaching the underlying image payload.
Software Support
Conversion Tools
Share & Embed
[](https://freewebptojpg.com/mime/image/aimg)
<iframe src="https://freewebptojpg.com/mime/image/aimg/embed" width="100%" height="280" style="border:1px solid #cbd5e1;border-radius:8px;" title="AIMG Specs"></iframe>
JSON API
All data on this page is available as a free, open JSON API. Use it in your project, documentation, or tooling.
GET https://freewebptojpg.com/mime/image/aimg.json
Open JSON
Frequently Asked Questions
What is an AIMG file?
An AIMG file is a container format built by the AI Media Format (ai-mf) group. It wraps standard image payloads (like PNG or JPEG) with a cryptographic header that stores verifiable provenance data, proving how, when, and by which AI model the image was generated or altered.
How is image/prs.aimg different from standard images?
While it contains standard pixel data, its primary purpose is structural integrity and attribution. Standard formats rely on EXIF or XMP metadata, which can be easily stripped. AIMG integrates tamper-evident cryptographic signatures directly into its container structure to combat deepfakes.
Can web browsers open image/prs.aimg files?
No modern web browsers natively support the AIMG format for rendering. Developers must use the open-source 'aimf-cli' (written in Rust) or the media-engine library to verify the AI metadata and extract the underlying backward-compatible image payload for web display.