Wayback Machine capture 20130717224554, taken on July 17, 2013 at 22:45:54 UTC, shows webminetech.com serving a page titled 'Welcome to the US Petabox'. The page opened with a cluster-search line and presented a directory of media types: 'All Media Types', 'Wayback Machine', and a 'Moving Images' section listing 'Animation & Cartoons', 'Arts & Music', 'Community Video', 'Computers & Technology', 'Cultural & Academic Films', and 'Ephemeral Films'. No meta description was stored with the capture.
The Petabox is the Internet Archive's purpose-built storage cluster, designed to hold petabytes of digitized material, and the categories on the page match the collection taxonomy of archive.org. The capture proves that this domain served that page at that moment; it does not by itself explain the administrative reason, and this record does not speculate.