The date is the date the archive file was created. The length specifies the size, in bytes, of the rest of the version block. The URL record introduces an object in the archive file. It gives the name and size of the object, as well as several pieces of metadata about its retrieval. The specifics of the checksum are implementation specific.
All fields have at least one character.
No field value contains a space. In the following example, please remember that length includes carriage returns and line feeds. As noted above, the best way to retrieve a specific object from an archive file is to maintain an external database of object names, the files they are located in, their offsets within the files, and the sizes of the objects.