## CBOR Tags

The tags below are extracted from CBOR (Concise Binary Object Representation) metadata. The C2PA specification uses this format for some metadata. As well as these tags, ExifTool will read any existing tags.

> Tag Name | Writable | Values / Notes
> --- | --- | ---
> AuthorIdentifier | no |
> AuthorName | no |
> DocumentID | no |
> Format | no |
> InstanceID | no |
> Relationship | no |
> ThumbnailHash | no+ |
> ThumbnailURL | no |
> Title | no |

(This document generated automatically by Image::ExifTool::BuildTagLookup)
Last revised Sep 30, 2021

<-- ExifTool Tag Names