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Block and chain, since the word suggests, a chain made of blocks! So we determine what are these blocks. Blocks certainly are a kind of database! People who develop computers know databases well! And for people that do not know, if we say in simple language, then this database is known as Collection of Data! Data, very little else, whatever information you type on the computer, that information is stored in the electronic form inside the computer! Similarly, every information about the Internet is a kind of data! And this is a collection of data database! This database is held in the computer in a way that it can often be searched.

In blocks, the database is collected in groups and also this group is called blocks. Each block has a limited space or chance to collect the database! And when a block is totally filled using the database, it can be automatically for this next block! In this way one block gets attached with another block! And there’s a chain! This is what is known as the chain of blocks, that is, the blockchain!

What would be the elements of Blockchain?

There are three kinds of elements in a blockchain-

Data held in blocks

Hash (Transition Hash) generated from that transition

Hash.(Previous Hash) from the first block connected with that block

Note – The first block within the blockchain is known as the Genesis Block!

What are nodes in blockchain?

The computers on what blockchain data is stored! They are called nodes and all the nodes which are connected to the blockchain use a copy with the blockchain! Which updates every ten minutes! With the help of these nodes, it may be found out using a Hash make certain there has become no alteration of it. If all of the transitions inside the blockchain are authorized by the nodes, that’s, the proof work is approved, they are coded in blocks! With the help of nodes, the data of the blockchain is stored, spread and preserved. A copy of each transition made inside blockchain on each with the nodes is updated every 10-ten minutes! That’s why it can be considered safe!

How does blockchain process?

Each block carries a cryptographic hash with the previous block which can be generated on every transition made inside blockchain! Hash is often a string of numbers and letters. That is, Hash is often a mathematical function that encrypts the input data to the output of a limited length. So, regardless of the size of the input data, the Encrypted Unique Hash is definitely of a set size! And at the same time it really is also for this Hash made from the previous block’s transition!

Why is blockchain technology considered secure?

If someone would like to edit the database with this Blockchain Technology, another new hash is generated! Due to which the setting of most after blocks is changed and it’s easy to know the location where the setting has been changed! So no one can tamper with the info on this blockchain! Now if you realize that you have to make some changes within the block chain, then you’ve to show the evidence of work, which is, for whatever changes you are going to make, all the computers (Nodes) connected to the blockchain need to make this change. The information must be sent and just if the majority with the computers approve, then you can certainly change it!

Where can blockchain technology be used within the future?

In preventing corruption

Yes, corruption can be prevented through the use of blockchain technology because whatever database is saved in the blockchain is copied on every nodes therefore anyone desires to change the information then all the others will know regarding it!

In maintaining government records

The use of blockchain technology in government offices can prove to be very secure.

Anyone whose name is saved in the database cannot be easily changed while exchanging properties using Blockchain technology! Due to which any disputes regarding properties will come down.

Patient record keeping in the hospital

If all the information in connection with patients is kept inside the blockchain, that will be correct and anyone is going to be able to hop on.

In virtual currency | In Cryptocurrency

People previously started investing in the cryptocurrency you might be seeing within the online market like bitcoin, ethereum, dogecoin etc which currency keeps growing faster than gold! One advantage with this is that it is decentralized i.e. this doesn’t require any middleman like inside ordinary currency we use, we will need to use banks to transfer money from one place to another! And they also charge some fees because of this, banks will never be needed within the transition to Cryptocurrency! And you will be able to transact with crypto currency anywhere within the world!