AOL ART
application/octet-stream
Magic Bytes
Offset: 0
4B 44 4D
The AOL ART format is a proprietary compressed image standard developed by the Johnson-Grace Company and later acquired by America Online. This format was primarily used within the AOL client software to accelerate the rendering of web images over low-bandwidth dial-up connections. Now considered a legacy format, it is largely obsolete and incompatible with modern web browsers, often requiring specialized third-party software for viewing or conversion to standard image types.
Validation Code
How to validate .art files in Python
Python
def is_art(file_path: str) -> bool:
"""Check if file is a valid ART by magic bytes."""
signature = bytes([0x4B, 0x44, 0x4D])
with open(file_path, "rb") as f:
return f.read(3) == signatureHow to validate .art files in Node.js
Node.js
function isART(buffer: Buffer): boolean {
const signature = Buffer.from([0x4B, 0x44, 0x4D]);
return buffer.subarray(0, 3).equals(signature);
}
Go
func IsART(data []byte) bool {
signature := []byte{0x4B, 0x44, 0x4D}
if len(data) < 3 {
return false
}
return bytes.Equal(data[:3], signature)
}API Endpoint
GET
/api/v1/art
curl https://filesignature.org/api/v1/art