This is a government bank in my country. Things have been taking place by means of digital transactions.
There are two methods of storing customer data currently practiced by the Bank.
1. Manual / classic KYC process.
2. And the online storage process that is currently being carried out is through the Blockchain channel.
These two methods the Bank must apply carefully to identify the documents of each customer, this does not only apply in your country, perhaps, all countries apply manual rules and the Blockchain system.
What a bank does in your country is also done in other countries, the main objectives of the bank company are:1. Their manual / classic documents will find out the level of risk of acts of terrorism or legal violations committed by customers.
2. Digital documents through blockchain or digital channels, which are carried out by the bank only to track the value of transactions between each customer's accounts in the property.
Conclusion: In this case, manual and digital document archiving or Blockchain channels are prioritized in the banking system, to prevent, Negative things about identity, security, risk, for customers in the future when making transactions.
The Blockchain system was implemented in 2008 and while manual document storage has been done for decades since the Bank was formed, If the internet has a problem or something happens to the Blockchain system, you still have manual documents at the bank company .