Makernote
Definition
A proprietary EXIF sub-block written by the camera manufacturer to record device-specific data not covered by the EXIF standard. Canon, Nikon, Sony, and other makers use different MakerNote structures. An absent, truncated, or out-of-format MakerNote is a strong indicator of editing-tool interference.
Related terms
- IPTC IIM
- International Press Telecommunications Council Information Interchange Model: a legacy binary metadata standard embedded in JPEG APP13. Carries caption, credit, copyright, and editorial...
- C2PA (Coalition for Content Provenance and Authenticity)
- An open technical standard that embeds cryptographically signed provenance assertions into media files at the point of capture or editing. A C2PA...
- Container Atom / Box
- The structural metadata units inside video container formats (MP4, MOV, MKV). Atoms such as mvhd (movie header) carry creation and modification timestamps;...
- EXIF
- Exchangeable Image File Format: a binary metadata standard defined in the IFF/TIFF structure embedded in JPEG APP1 segment and TIFF file headers....
- EXIF (Exchangeable Image File Format)
- A metadata standard embedded in JPEG and TIFF files by capture devices. EXIF fields record camera make and model, lens data, exposure...
- Moov Atom
- The master index atom in an MP4 or MOV file. Contains all track sample tables, timing information, creation and modification timestamps, and...
- RIFF Chunk
- Resource Interchange File Format: the container structure used by WAV and AVI files. A hierarchy of typed chunks, each with a four-character...
- XMP
- Extensible Metadata Platform: Adobe's XML-based metadata container embedded as a text packet in image files. Can carry all standard EXIF and IPTC...
- XMP (Extensible Metadata Platform)
- An Adobe-defined metadata format stored as an XML packet embedded in image files. XMP carries a software history field (xmpMM:History) that editing...
Explained in these topics
- EXIF and Container Metadata ForensicsA proprietary EXIF sub-block written by the camera manufacturer to record device-specific data not covered by the EXIF standard. Canon, Nikon, Sony, and other...
- Metadata, EXIF, and File-Structure ForensicsEXIF tag 0x927C: a manufacturer-defined metadata block whose internal structure is proprietary. Each camera brand and model family stores different fields. Mak...