| 摘要 |
A computer diary archives a diary entry by creating (102), time stamping (104), authenticating (106) and permanendy storing (114) a reference data block (226) along widh a working data block (228) in each diary entry (224). The working data block of an archived diary entry can only be modified by placing original text within compartment codes, such as cross-out or tear-out codes (IXI, ITI), and by placing inserted text within insertion codes (III) so that the original diary entry can be recreated from the modified working data block. The reference data block, which can be the original diary entry, a canonical version of the original diary entry or a one way fixed length encrytion (hash) of the original diary entry, cannot be modified and is used to authenticate the original diary entry. The diary program also monitors text entry for aliases (1463 and relative date phrases (144), and upon detection, prompts the user for entry or enters a specific identifier for each detected alias in an alias compartment or an absolute date for each relative data phrase in an implied date compartment in the diary entry.
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