It has been used in various fields regardless of the public and private sectors, and the UK venture company ever ledger Company records and manages diamond appraisal information, transaction history, and transfer certification on the blockchain. In the diamond trading market, forgery of appraisal documents and insurance fraud for jewelry were widespread and became a social problem. By utilizing blockchain, the company has built a system that allows police and insurance companies to refer to the data, which helps prevent crime.
In addition, Estonia's Vander Beam Company provides a blockchain mechanism to raise investment funds for startup companies. It is possible to liquidize and sell investment funds without waiting for the invested company to grow and return the funds. We also have data on more than 150,000 startups around the world, and some Japanese investors are investing through them.
Estonia is a representative country that uses the blockchain as a platform for the Okino Electronic Government. The Scandinavian Baltic countries Estonia is about one-ninth of Japan's land area, but it is attracting attention as a digitally advanced country. Since 2002, ID cards have been issued to the public, and more than 96% of the 1.31 million people own ID cards. Administrative procedures other than marriage, divorce, and real estate sales can be done online, and more than 3000 services can be used with an ID card.
The government's IT-related budget is 50 million Euros about 6 billion yen per year, which is overwhelmingly small, compared to other countries, but what made it possible is X-Road exroad that links the databases of each ministry and agency. It is a mechanism. Information such as resident registration information and health care information held by each ministry and agency is connected peer-to-peer and can be referred to each other. The operation of EXLOAD started in 2001. It was epoch-making that we quickly adopted the technology that leads to the distributed management, which is the concept of blockchain. Read more here - green profit system App.
You have achieved efficient administration.
Estonia is also overwhelmingly high in terms of the efficiency of the old- fashioned tax collection, and it has a big opening up with Japan. Electronic filing of tax returns started in 2000, but it is designed to be completed in 3 clicks and in a minimum of 3 minutes, and 98% is paid electronically. As a privacy measure, when a person who does not permit digital confidential information is viewed, it is immediately detected, the history is written, and a large penalty is imposed.
How about using it in Japan?
I often hear the term fintech, which incorporates IT into Okina finance, but especially in financial transactions, proof experiments are being actively pursued. The Japan Exchange Group conducted a field trial using a blockchain in post-trade processing such as settlement of funds after the establishment of a transaction in the market. In addition, some major banks are planning to issue their own virtual currencies, and some regional banks are incorporating blockchain into the meal ticket sales system at the bank cafeteria.
Please tell us about the issues with blockchain technology.
There is a problem of scalability extend ability, as is the case with the Okina Bitcoin transaction. As the number of transactions in the blockchain increases, the amount of information stored in the block also increases. If this happens, the blockchain will become long, the disk capacity required for network participants and the load on the machine will increase, and it may not be possible to handle a large number of transactions. It will take some time to ensure the scalability to cover credit card payments and securities transactions around the world.
There is also the issue of speed in approving a transaction. Bitcoin creates blocks every 10 minutes, so it is not suitable for transactions that require immediacy.
Is the use of blockchain going forward?
In 2016, the Ministry of Economy, Trade and Industry announced a report entitled Survey on domestic and overseas trends regarding services using block chain technology. According to the report, the utilization of blockchain as social infrastructure is expected to increase the efficiency and efficiency of sharing services and supply chains, resulting in a potential market size of 67 trillion yen.