The reality: exactly how much information is included on your Chinese identity? -IT information
Really, how much do you really know your ID card contains information?
Basic information, ID
People's Republic of China's second generation of citizen ID card is made of multi-layer polyester material into a single page is a composite card documents using contactless IC card technology.
Documents are divided into two sides: the front's emblem and certificate name, great designs, certificates of the issuing authority and validity date and color pattern; and the back is printed with citizen's photograph, date of birth, address, sex, nationality and ID side!
Documents in the minority areas, in the use of Chinese characters based on the need to fill in a minority language.
This figure is from the network
Second, the information on the ID card number
We all know that a total of 18-digit ID number, represents what these numbers mean? Next, small series to continue universal ID cards for everyone you represent meanings:
1, 1, 2-digit: code of the province;
2, 3rd, 4-digit: city code;
3, 5th, 6-digit: County code;
4, 7th to 14th digit birth year, month, day;
5, the 15th, 16-digit: location of station codes;
6, 17th number indicates gender: odd men, and even women;
7, the 18th digit is the checkout code: according to 17 digits code, in accordance with ISO 7064:1983.MOD 11-2 checksum checksum that is calculated.
According to 〖 People's Republic of China national standard GB 11643-1999 〗 provisions relating to civil identification numbers, citizen identity number is a composite key, the 17-composed digital ontology and a single digit checksum. Order from left to right are: six-digit address code, eight-digit date code, a three-digit number sequence code and a single digit checksum.
Detailed explanation of meaning, relating the three address code
Through the above explanation, I believe we all know the ID address, where the top six is our code, how can address code who arranged it?
Our top six address ID code, ABCDEF said.
The top two, that is, AB, then is the owner ID of the province (municipalities, autonomous regions, special administrative region) code.
According to the partition shall be defined, code: municipalities, municipalities directly under the top, and the rest sorted by distance from the municipality, no municipalities, ordered by distance from Beijing.
Provinces (municipalities and autonomous regions, special administrative region) code is as follows:
11-15 Beijing-Tianjin-Hebei Jing Meng
21-23 Liao JI-Hei
31-37 Shanghai, Jiangsu, Zhejiang and Anhui, Fujian, Jiangxi and Shandong
41-46 Henan, Hubei, Hunan, Guangdong, Guangxi and Hainan
50-54 Yu-chuan Kiun reservoir
61-65 shaan Gan-Qing Ning Xin
81-82-Macau
(For example, your account is located in Shandong, ID top two for 37)
Paragraphs 3, 4, is the CD, is the area code (ground level).
Starting from 01-row, for municipalities, CD=01 district, CD=02 counties; the city code starting from the capital of the province line, 2101 2102 = = Shenyang Dalian ... ... Code the only prefecture-level cities are independent cities, and county-level cities do not have.
5th, 6-bit, that is, EF, expressed as the County Code (district, rural, suburban counties and county-level cities).
Representative of E=0 district,
E=1 represents the suburbs,
E=2 on behalf of suburban,
E=8 on behalf of county-level cities.
F represents a specific region does not go into details here.
Four, ID number on the mystery of how x come from?
18th we ID check digit of ID cards (ID), and as the tail number checksum, it is centrally by the unit of the number calculated by the formula, widely used computer generated automatically.
If someone's tail number is 0-9, x does not appear, but if the tail number is 10, then you must use an "x" instead, because if you do with 10 tail number, then that person's identity becomes 19, and number 19 in violation of national standards, and Chinese computer system also does not recognize the 19-digit ID number. "X" is the Roman numeral 10, with an "x" instead of 10, can guarantee that the identity cards of the citizens in line with national standards.
Five, the ID card checksum calculation method
1, will be in front of the identity card numbers of 17 digits multiplied by two different coefficients. To 17th place from first coefficient is: 7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4 2
2, the 17 digits and multiply the coefficient of the sum.
3, with added and divided by 11, the remainder is.
4, the remainder only of 0 1 2 3 4 5 6 7 8 9 10 11 number. The last of its corresponding ID number 1 0 x 9 8 7 6 5 4 3 2.
5, above about if the remainder is 2, it will show up on the 18th digit of ID cards the Roman numeral x. If the remainder is 10, the last number of the identity card is 2.
Six, validity of the identity card
1, age of 16 citizens, voluntarily apply for an ID card, valid for 5 years;
2, aged 16 to 25 years of age, identity card valid for 10 years;
3, aged 26 to 45 years of age, identity card valid for 20 years;
4, 46 years old, ID standing.
Well, even if the ID card is lost, nor remember ID! Although a bit of trouble, but you can figure it out.
揭秘：你的中国身份证上究竟包含多少信息？ - IT资讯
讲真，你真的知道你身份证上包含着多少信息么？
一、身份证基本信息
中华人民共和国第二代居民身份证是由多层聚酯材料复合而成的单页卡式证件，采用非接触式IC卡技术制作。
证件分为两面：正面印有国徽、证件名称、长城图案、证件的签发机关和有效期限及彩色花纹；而背面则是印有公民的照片、出生年月、住址、性别、民族及身份证号的那一面！
少数民族地区证件，在使用汉字的基础上，还需要同时填写一种少数民族文字。
本图来自网络
二、身份证号码上的信息
我们都知道身份证号码一共有18位数字，可这些数字都代表着什么意思呢？下面，小编继续为大家普及一下身份证的各位数字代表的含义：
1、前1、2位数字表示：所在省份的代码；
2、第3、4位数字表示：所在城市的代码；
3、第5、6位数字表示：所在区县的代码；
4、第7~14位数字表示：出生年、月、日；
5、第15、16位数字表示：所在地的派出所的代码；
6、第17位数字表示性别：奇数表示男性，偶数表示女性；
7、第18位数字是校检码：根据前面十七位数字码，按照ISO 7064:1983.MOD 11-2校验码计算出来的校验码。
根据〖中华人民共和国国家标准GB 11643-1999〗中有关公民身份号码的规定，公民身份号码是特征组合码，由十七位数字本体码和一位数字校验码组成。排列顺序从左至右依次为：六位数字地址码，八位数字出生日期码，三位数字顺序码和一位数字校验码。
三、关于地址码含义的详细解释
通过上面的解释，相信大家都知道了身份证的前六位是我们所在地的地址码，可这地址码究竟谁怎么排列的呢？
我们把身份证前六位地址码码，按ABCDEF表示。
那么前两位，就是AB，则代表的是身份证主人所在的省(直辖市，自治区，特别行政区)代码。
按分区定义省代码的规定：有直辖市的，直辖市列前，其余按离直辖市的距离排序，没有直辖市的，按离北京的远近排序。
则具体省(直辖市，自治区，特别行政区)代码如下：
11-15京津冀晋蒙
21-23辽吉黑
31-37沪苏浙皖闽赣鲁
41-46豫鄂湘粤桂琼
50-54渝川贵云藏
61-65陕甘青宁新
81-82港澳
（比如您的户口所在地是山东，则身份证前两位为37）
而第3、4位，就是CD，则是地区代码（地级）。
从01开始排，对于直辖市，CD=01表示市辖区，CD=02表示辖县;省的城市代码从省会开始排，比如2101=沈阳2102=大连……只有地级城市有独立的城市代码，而县级市没有。
第5、6位，就是EF，则表示为县区代码（市辖区、郊区、郊县、县级市）。
E=0代表市辖区，
E=1代表郊区，
E=2代表郊县，
E=8代表县级市。
F则代表着具体的区域，这里就不赘述了。
四、身份证号上神秘的X到底是怎么来的？
我们身份证是的第18位是身份证的校验位（识别码），而作为尾号的校验码，则是由号码编制单位按统一的公式计算出来的，普遍采用计算机自动生成。
如果某人的尾号是0-9，都不会出现X，但如果尾号是10，那么就得用“X”来代替，因为如果用10做尾号，那么此人的身份证就变成了19位，而19位的号码违反了国家标准，并且中国的计算机应用系统也不承认19位的身份证号码。“X”是罗马数字的10，用“X”来代替10，可以保证公民的身份证符合国家标准。
五、身份证校验码的计算方法
1、将前面的身份证号码17位数分别乘以不同的系数。从第一位到第十七位的系数分别为：7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4 2
2、将这17位数字和系数相乘的结果相加。
3、用加出来和除以11，看余数是多少。
4、余数只可能有0 1 2 3 4 5 6 7 8 9 10这11个数字。其分别对应的最后一位身份证的号码为1 0 X 9 8 7 6 5 4 3 2。
5、通过上面得知如果余数是2，就会在身份证的第18位数字上出现罗马数字的Ⅹ。如果余数是10，身份证的最后一位号码就是2。
六、身份证的有效期
1、未满16周岁的公民，自愿申领身份证，有效期为5年；
2、16周岁至25周岁，身份证有效期10年；
3、26周岁至45周岁，身份证有效期20年；
4、46周岁以上的，身份证长期有效。
怎么样，这样就算身份证丢了，也不怕记不住身份证号了吧！虽然有点麻烦，但可以自己算出来啊。