As a result, lawmakers’ tax writing advice is to be kept under the tightest computer and physical security, according to the guarantees being extended by Senators Max Baucus, the Democratic committee chairman, and Orrin Hatch, the ranking Republican. Names will be shielded with identification numbers. Only 10 Senate staff members will have access to material under a tight login process, and printed copies will be kept in a vault with the identities of who proposed what secreted in the National Archives until 2064, should anyone still care by then.