Based on standard release patterns for this naming convention, here are the technical specifications:
A standard compressed audio format (Advanced Audio Coding). [ ] - 09 (B-Global 3840x2160 HEVC AAC MKV) [79D...
This is 4K (Ultra HD) . Note that most TV anime is produced at 720p or 1080p, so these 4K files are often upscaled by the streaming platform or the release group. Based on standard release patterns for this naming