I distinguish human-identification from bureaucracy-applied-to-humans:

• There was a period in human history in which no state existed so no bureaucracy-applied-to-humans existed and humans identified one another just by sense and perhaps also general communication language as we use today
• There was an even earlier period in human history in which no general communication languages as we use today existed so human-identification was done only by sense

Today, states record information about their citizens to identify them (their bodies):

• Assigned name
• Assigned date of birth
• Assigned address
• Image

Some problems with bureaucracy-applied-to-humans are:

• It's forced upon someone which might not want to take part in it
• Names, addresses and even calendars are not essential and can be changed at least in the mind of the subject
• It may be grasped as "reducing" an entire human being's history into mere technical information
• One can identify with two or more of the relevant detail types

These and maybe other problems consist a broader problem.
If any, what solutions does science holds to that problem?

Perhaps some kind of "computerized-genetic-human-identification" and Perhaps "world-government-microchip-identification"; perhaps something else?