A server of a computer server system includes an enclosure and a fan module located outside the enclosure. A bond ring material is formed on top of the sacrificial layer and the bond ring area. These constructions allow the plunger to be raised and lowered so that the column and its parts can be exchanged, all without the need for a hoist or crane. Moreover, the system and method may be implemented in hardware or software to provide a transparent transport layer to higher level hardware layers. Each of the electronic records is furnished, within the distributed domain, with a cryptographically protected proof of a certain moment of time associated with the generation of the electronic record.