what is blockchain?

In recent years, many people have invested in cryptocurrencies. If you want to do it too, know that it’s essential to know the subject well before starting, because it doesn’t existrisk-free investment. Through this article, you will learn more about how cryptocurrencies work. Definition, mode of transaction and basic technology of cryptocurrencies – we tell you everything.

What is Cryptocurrency?

Cryptocurrency is a digital currency based on blockchain technology to provide security, transparency and reliability of transactions. Cryptocurrencies do not have a physical existence like fiat currencies. These currencies are also not legal tender e they are not regulated by any central bank or financial authority. The price of a cryptocurrency mainly depends on the demand for the asset in question. It is an alternative currency, totally virtual and its usefulness depends on the body that issues it.

Cryptocurrencies can be stored and traded using a digital wallet. This wallet is called a wallet, and is protected by a secret code called “seedphrases”.

It is also possible to obtain cryptocurrencies through exchanges such as “coinhouses” which hold and protect these assets for you. If you are interested in investing in this type of digital asset, you can check coinhouse reviews before you start.

blockchain technology

As stated above, in order to ensure transparency, security and reliability of transactions, cryptocurrencies are based on an underlying technology called blockchain. It is a database distributed among the nodes of a computer network. Clearly, it is an information storage system distributed across a multitude of computers. In this system, all contributors to the network have a copy of the database. This copy is updated simultaneously.

The difference between the blockchain and a traditional database is that it allows data to be recorded in the form of blocks. With a block, information is grouped easily. When the block is full, it is sealed with a computer code and is added to the previous block. This is where the name blockchain comes from. Thanks to this way of structuring and recording information, this database is tamper-proof. The blockchain therefore makes it possible to exchange value in digital form, value materialized by the cryptocurrency.

This technology is transparent, as it allows everyone to see the transactions that have taken place on the network. In general, the code of a blockchain is open source. Everyone can then consult it and suggest improvements. Furthermore, the security of blockchain technology initially lies in the fact that no network participant can change it without others noticing. Furthermore, each block is closed by a hash function.

SEE ALSO: Cryptocurrencies: 5 blockchains that aren’t all about finance

Cryptocurrency Transactions

To validate transactions on a blockchain, several transparent and secure methods can be used. Proof of work is the mechanism used on the Bitcoin network. This validation mechanism is powerful, but still consumes a lot of energy. Therefore, several alternative consensus mechanisms have been created.

Among the most commonly used mechanisms are the Proof of Stake method (PoS or proof of participation in French). With this method, network participants stake their own cryptocurrency to validate transactions on the network. The right of validation is randomly granted by an IT protocol to one of the participants.

The higher the sum of the cryptocurrencies involved, the more likely you will be chosen by the network to validate a transaction. The chosen network participant is rewarded with an amount of the relevant cryptocurrency, as is the case with the proof-of-work mechanism. And to participate in the validation of a decentralized network, you need to lock your cryptocurrency to the protocol (staker). The participant can however decide, at any time, to unlock it in order to transfer or exchange it. However, it is important to remember that in order to move or store your cryptocurrency, it is essential to have an electronic wallet.

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