2009 : Popularized by Satoshi Nakamoto floated bitcoin on this

technology was on J anuary 9 , 2009 .

2014 : The Bitcoin blockchain file size was 20 GB.

2014 : Acting as arbiters of money and information, Blockchain 2.0

came into existence, which includes the exchange of values without

powerful Intermediaries. With new

apps

of

blockchain, a

programming language emerged that allows users to write

sophisticated smart contracts, automatically create invoices that pay

themselves when a shipment arrives, and share certificates that

automatically send their owners dividends.

2015: The file size of the bitcoin blockchain had grown to almost 3 0

GB.

2016: The two words block and chain were merged into a single word

blockchain. A pilot proj ect based on the Nxt Blockchain 2.0 platform

was announced by the Russian Federation’s Central Securities

Depository (NSD) for exploring the use of automated voting systems

based on blockchain. A blockchain innovation research center was

opened by IBM in Singapore. A discussion at the World Economic

Forum for the Governance Model Global Blockchain Forum was

formed by the Chamber of Digital Commerce.

2016 J anuary to 2017 J anuary: The file size of the bitcoin

blockchain grew from 5 0 GB to 100 GB in size.

2018: Four new cryptocurrencies launched with the initiation of

Blockchain 3 .0.

2019 : AWS, Azure, and Oracle Blockchain Solution

Blockchain versions

A digital record of transactions that are stored in the chain of blocks is the

blockchain. Each time a block is completed by storing information, the next

new block is created to store further information. A secure technology in

which no third-party intermediary is allowed is blockchain. As an example,

in the case of money transfer bank’s interference is not allowed. Blockchain

technology is used in several fields, including banking, finance,

government, insurance, healthcare, retail, and education.