[JSWolf]

Originally Posted by Doitsu

If you want the plugin to display the time stamp, add this line to the beginning of EpubCheck.json:

{
  "extra": true,

The plugin will then also display the following information, if the epub is valid:

publisher:
title:
creator:
date:
description:
identifier:
language:
nSpines:
checkSum:
renditionLayout:
renditionOrientation:
renditionSpread:
ePubVersion:
isScripted:
hasFixedFormat:
isBackwardCompatible:
hasAudio:
hasVideo:
charsCount:
hasEncryption:
hasSignatures:

Or do you want the plugin to add the date and the EPUBCheck version number to the epub metadata?

I've seen some ePub that have a line in the OPF metadata that shows the epubcheck version and the date it was last checked.