{"id":"image-prs-aimg","mimeType":"image/prs.aimg","name":"Universal AI Media Format (Image)","shortName":"AIMG","category":"Metafiles \u0026 AI Provenance","extensions":[".aimg"],"description":"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.","seo":{"title":"image/prs.aimg MIME Type | Developer Reference for AI Media Format","description":"Complete reference for the image/prs.aimg MIME type: AI Media Format (AIMF), cryptographic provenance, metadata embedding, and developer integration.","faqs":[{"question":"What is an AIMG file?","answer":"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."},{"question":"How is image/prs.aimg different from standard images?","answer":"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."},{"question":"Can web browsers open image/prs.aimg files?","answer":"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."}]},"index":{"compression":["Container (Inherits payload compression, e.g., PNG/JPEG)"],"browserSupport":{"score":1,"label":"None"},"commonUses":["AI Provenance and Attribution","Verifiable Deepfake Prevention","Cryptographic Media Watermarking","Generative AI Workflows"]},"technical":{"magicBytes":{"hex":"Varies (Custom AIMF Header Prepended to Payload)","ascii":"Unknown"},"container":"Universal AI Media Format (AIMF)","compressionAlgorithm":["None (Pass-through to embedded payload)"],"colorDepth":["Inherited from payload (8-bit, 16-bit, HDR)"],"transparency":true,"animation":true,"metadata":{"exif":true,"xmp":true,"iccProfile":true},"alphaChannel":true,"progressiveLoading":false,"hdrSupport":true},"history":{"developer":"AI Media Format (ai-mf) Open-Source Project","released":"2026","specification":"AIMF Media Engine Specification"},"browserSupport":{"chrome":false,"chromeVersion":"None","firefox":false,"firefoxVersion":"None","safari":false,"safariVersion":"None","edge":false,"edgeVersion":"None","internetExplorer":false},"softwareSupport":[{"name":"aimf-cli (Rust Utility)","logo":""},{"name":"ai-mf / media-engine","logo":""}],"conversion":{"convertTo":["png","jpeg","webp"],"convertFrom":["png","jpeg","webp"]},"developer":{"httpHeaders":[{"header":"Content-Type","value":"image/prs.aimg"}],"htmlAccept":"image/prs.aimg, .aimg","fileDetection":["Due to its novelty, standard magic file databases do not yet recognize AIMG files.","AIMG features a 'header-first' design; custom parsers must read the initial bytes to extract the cryptographic signatures before reaching the underlying image payload."]},"prosCons":{"pros":["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"],"cons":["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"]},"specifications":{"url":"https://github.com/ai-mf/media-engine","rfc":"","mimeAliases":[]},"developerSnippets":{"python":"import magic\n# Libmagic will likely fail to identify the AIMF header and fall back to 'application/octet-stream'\nprint(magic.from_file('generated.aimg', mime=True))","nodejs":"const { execSync } = require('child_process');\n// Extracting the underlying PNG using the official Rust aimf-cli tool\ntry {\n  execSync('aimf-cli extract generated.aimg --output image.png');\n  console.log('Payload extracted for web delivery');\n} catch (err) {\n  console.error('Failed to parse AI Media Format');\n}","go":"import \"net/http\"\n// The standard net/http library cannot detect AIMG files internally. You must rely on string matching the .aimg extension.","php":"$mime = mime_content_type('generated.aimg');\necho $mime; // Standard server environments will map this to application/octet-stream"},"relatedFormats":["png","jpeg","webp"]}