Assalamualaikum, I rokonn. Today I will discuss bitcoin among you in crypto challenge.Before discussing bitcoin, you must know what bitcoin is.We will now know what is bitcoin?Stay with me. ![IMG_20201217_175108.jpg](https://cdn.steemitimages.com/DQmPVMs6V6eXyaNfNwei2H56XgsqE14nRNV4SL8CxSY6mWB/IMG_20201217_175108.jpg) [Image source..](https://www.takeflyte.com/bitcoin-cryptocurrencies-explained)

What is bitcoin?

Bitcoin is a cryptocurrency created in 2009. Marketplaces called “bitcoin exchanges” allow people to buy or sell bitcoins using different currencies. By Tal Yellin, Dominic Aratari, Jose Pagliery Bitcoin is a new currency that was created in 2009 by an unknown person using the alias Satoshi Nakamoto. Transactions are made with no middle men – meaning, no banks! Bitcoin can be used to book hotels on Expedia, shop for furniture on Overstock and buy Xbox games. But much of the hype is about getting rich by trading it. The price of bitcoin skyrocketed into the thousands in 2017. ![IMG_20201217_181000.jpg](https://cdn.steemitimages.com/DQmY9Zp545vDZc4mwAPsdVgptEXmnPhJd8u6tyKSnq3rdc5/IMG_20201217_181000.jpg)[source...](https://en.m.wikipedia.org/wiki/Bitcoin) Bitcoin uses peer-to-peer technology to operate with no central authority or banks; managing transactions and the issuing of bitcoins is carried out collectively by the network. Bitcoin is open-source; its design is public, nobody owns or controls Bitcoin and everyone can take part. Through many of its unique properties, Bitcoin allows exciting uses that could not be covered by any previous payment system. ![IMG_20201217_171302.jpg](https://cdn.steemitimages.com/DQmWEikL7DZF1paYZECc6H1yQjb3sSwbPBDSeB7Msf2GGym/IMG_20201217_171302.jpg) It is a decentralized digital currency without a central bank or single administrator that can be sent from user to user on the peer-to-peer bitcoin network without the need for intermediaries. Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain. Bitcoins are created as a reward for a process known as mining. They can be exchanged for other currencies, products, and services. Research produced by the University of Cambridge estimates that in 2017, there were 2.9 to 5.8 million unique users using a cryptocurrency wallet, most of them using bitcoin.

What is bitcoin wallet?

A Bitcoin wallet is a software program in which Bitcoins are stored. Technically, Bitcoins are not stored anywhere. For every individual who has a balance in a Bitcoin wallet, there is a private key (secret number) corresponding to the Bitcoin address of that wallet. Bitcoin wallets facilitate the sending and receiving of Bitcoins and give ownership of the Bitcoin balance to the user. The Bitcoin wallet comes in many forms. The four main types are desktop, mobile, web, and hardware

Bitcoin digital cryptocurrency:

Digital currencies exhibit properties similar to other currencies, but do not have a physical form of banknotes and coins. Not having a physical form, they allow for nearly instantaneous transactions. Usually not issued by a governmental body, virtual currencies are not considered a legal tender and they enable ownership transfer across governmental borders. ![IMG_20201217_170937.jpg](https://cdn.steemitimages.com/DQmTpYSxLuxnbrtffeyjLdAwc3dPCgmHoy5ZrV3GtHW4c2w/IMG_20201217_170937.jpg) These types of currencies may be used to buy physical goods and services, but may also be restricted to certain communities such as for use inside an online game.[3] One type of digital currency is often traded for another digital currency using arbitrage strategies and techniques. *** Thanks so much to everyone for reading my post. Next I will discuss more about the Steam Crypto Challenge. ***

Reference.

*** https://bitcoin.org/en/ https://en.m.wikipedia.org/wiki/Digital_currency https://money.cnn.com/infographic/technology/what-is-bitcoin/index.html https://en.m.wikipedia.org/wiki/Bitcoin ***

See you soon With regards @abbas01