Digital data medium for storing evidence file, has header formed of header identifier, list of identifiers of elementary evidences and data associating header identifier and identifier list

摘要

The medium (10) has an assembly (16) of elementary evidences (18-1-18-N), in which each evidence is formed of an identifier (ID-N), evidence information (I-N) and data (H-N) e.g. time-stamp token. The data associates a date to the identifier and the evidence information. The date is expressed in coordinated universal timeformat. Each evidence concerning an elementary object e.g. event. A header (14) is formed of a identifier (ID0), list (L) of identifiers (ID-N) and data (H0) associating the identifier (ID0) and the list. Independent claims are also included for the following: (1) a method for creating a data medium (2) a method for utilizing the data medium.