|
The uniform civil number ((ブルガリア語:Единен граждански номер); abbreviated: ЕГН, ''EGN'') is a 10-digit unique number assigned to each Bulgarian citizen or resident foreign national. It serves as a national identification number. An EGN is assigned to Bulgarians at birth, or when a birth certificate is issued. The ''uniform system for civil registration and administrative service of population'' ((ブルガリア語:Единна система за гражданска регистрация и административно обслужване на населението); abbreviated: ЕСГРАОН, ''ESGRAON'') regulates the EGN system. ==Structure== The initial six digits correspond to the birth date (YYMMDD). Since there are only two digits reserved for the year, only years between 1900 and 1999 can be encoded directly. Other years get represented as follows: * for births before 1 January 1900, 20 is added to the month * for births from 31 December 1999 to 31 December 2099, 40 is added to the month The next three digits designate the birth order number, the third digit being even for males and odd for females. Each district is assigned a range of three-digit numbers, used consecutively, altering even and odd numbers between males and females born on the particular day. In rare cases, numbers are "borrowed" from an adjacent district. The tenth digit is a checksum, calculated using the following algorithm: # Each digit is multiplied by its ''weight'' (see below) # The products obtained are added # The sum is divided by 11 ( use sum % 11, not /, modulus, not division) # If the remainder is less than 10, the remainder is the checksum digit, otherwise the checksum digit is zero +------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+ | Position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | +------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+ | Weight | x2 | x4 | x8 | x5 | x10 | x9 | x7 | x3 | x6 | | +------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+ The weights are the powers of 2, modulo 11. (''See also'': Galois field applications) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Unique citizenship number」の詳細全文を読む スポンサード リンク
|