What is Blockchain technology? What is so sure?

What is Blockchain technology What is so sure

The start of Bitcoin in 2009 introduced the concept of hard money in the world. A system financial settlement between pairs that is free of centralized control. He also gave an idea of ​​a system that democratizes data storage: blockchain.

It’s called today is the mother rock on Which Bitcoin works .

Composed of two words, “block” and “chain,” blockchain is literally a chain or a series of “blocks.” These blocks or groups of data are linked to each other.

A conventional information flow model, a defined source dictates the dissemination of data through a centralized server. Blockchain is a consensus based model.

Node-based network

The “nodes” or network participants Actively work to verify each part of the information related to ongoing digital transactions. The data sets to Ensure That majority consensus are subsequently Entered into blocks, Which then a part of the chain Become.

UNLIKE banks, title companies and third-party intermediaries, blockchain Allows each node in the network to have a copy of the Exchanged information, as well as a distributed record book or ledger.

Any entry made in the ledger is Known to all members Immediately, THUS Eliminating the Possibility of fraudulent manipulations.

This is what blockchain Gives a superior advantage over pre-existing database management systems. By Eliminating the interference of third parties to Facilitate trusted digital transactions, blockchain is a truly powerful technology and a key Invention from the Internet.

Blockchain Security

Blockchain technology itself encompasses a very unique security feature. How does it help Prevent Threats? Let’s see.

Block chains add blocks after prolonged procedures consensus. It is extremely difficult to alter the contents of the block after formation.

This is Because each block of the network has an associated hash, along With the hash of the previous block. The hashes are an alphanumeric combination of strings and numbers.

When a hacker to modify the transactional Manages information in the block, there is an alteration of the hash of the block. The hacker can not stop here, as I would need to review the information in the next block, since it would still Contain the hash of the initially “modified” block.

Doing so would change the hash Also of esta block. This would go on and on, and Eventually, the hacker would need to change each block of the chain.

Recalculating all those hashes and would require a huge amount of computing power unlikely. In other words, eleven blockchain adds a block, it Becomes very difficult to edit and delete impossible to.

Work test

To address the problem of trust, networks blockchain Have Implemented tests for computers want to join That and add blocks to the chain. Testing requires users to “test” Themselves Before They Can Participate in a blockchain network. Bitcoin employs a commonly used verification mechanism called “Proof of Work.”

Computers That Participate in the Proof of Work (POW) system must prove Themselves to be eligible to add to the blocks blockchain. And how? By solving complex mathematical problems in a process called “mining.”

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But, however it May seem easy or read, easy mining is Not particularly. ACCORDING to statistics , the possibilities The resolution of PoW problems in the Bitcoin network was approximately 1 in 5.8 billion in February 2019. To solve complex mathematical problems With These probabilities, computers must run programs That cost them significant Amounts of Energy and Energy (read: money).

The proof of work does not make hacker attacks impossible, but it Makes them somewhat useless. If a hacker wanted to coordinate an attack on the blockchain, I would need to solve complex computational problems mathematical probabilities with 1 in 5.8 billion like everyone else. The cost of organizing an attack would Surely Such outweigh the benefits.

Blockchain even after more than a decade since I saw daylight That is a nascent technology. But the level of interest around it is higher than ever. Everyone, from national Governments to multi-million dollar corporations, is looking for “blockchain” in Their operations. The powerful Implications of Blockchain hint at the kind of technological progress enveloped the world That after the Invention of the Internet.


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