The item is wrapped in a multi-layer barrier film meeting MIL-PRF-131 or MIL-PRF-121 specifications. This typically includes:
If you're trying to find more details or a specific description, these codes are commonly used on archival databases or enthusiast forums where users track specific releases. When a hero commented the sauce. - Facebook
SHA-1 or MD5 hashes to verify the file was not corrupted during download.