Validating using EPUB version 3.4 rules.
No errors or warnings detected.
Messages: 0 fatals / 0 errors / 0 warnings / 0 infos

EPUBCheck completed
Validated EPUB SHA-256: f798054f24dd4cd14b5cce6a9ce075ecb6874a6d3d80a58bb4ede4065004442d