What is Bitcoin?
There are no physical bitcoins, only balances kept on a public ledger that
everyone has transparent access to, that along with all Bitcoin transactions are
verified by a massive amount of computing power. Bitcoins are not issued or
backed by any banks or governments, nor are individual bitcoins valuable as a
commodity. Despite it not being legal tender, Bitcoin charts high on
popularity, and has triggered the launch of hundreds of other virtual
currencies collectively referred to as Altcoins.
Understand Bitcoin
In the event that an attack was to happen, the Bitcoin nodes, or the people
who take part in the Bitcoin network with their computer, would likely fork to
a new blockchain making the effort the bad actor put forth to achieve the
attack a waste.
Bitcoin is a type of cryptocurrency. Balances of Bitcoin tokens are
kept using public and private "keys," which are long strings of
numbers and letters linked through the mathematical encryption algorithm
that was used to create them. The public key (comparable to a bank account
number) serves as the address which is published to the world and to which
others may send bitcoins. The private key (comparable to an ATM PIN) is meant
to be a guarded secret and only used to authorize Bitcoin transmissions.
Bitcoin keys should not be confused with a Bitcoin wallet, which is a physical
or digital device which facilitates the trading of Bitcoin and allows users to
track ownership of coins. The term "wallet" is a bit misleading, as
Bitcoin's decentralized nature means that it is never stored "in" a
wallet, but rather decentrally on a blockchain.
How Bitcoin works?
Bitcoin mining is the process by which bitcoins are released into
circulation. Generally, mining requires the solving of computationally
difficult puzzles to discover a new block, which is added to the
blockchain. In contributing to the blockchain, mining adds and verifies
transaction records across the network. For adding blocks to the blockchain,
miners receive a reward in the form of a few bitcoins; the reward is halved every
210,000 blocks. The block reward was 50 new bitcoins in 2009 and is currently
12.5. On May 11th, 2020 the third halving occurred, bringing the reward for
each block discovery down to 6.25 bitcoins.5 A
variety of hardware can be used to mine bitcoin but some yield higher rewards
than others. Certain computer chips called Application-Specific Integrated
Circuits (ASIC) and more advanced processing units like Graphic Processing
Units (GPUs) can achieve more rewards. These elaborate mining processors are
known as "mining rigs."
One bitcoin is divisible to eight decimal places (100 millionths of one
bitcoin), and this smallest unit is referred to as a Satoshi.6 If necessary, and if
the participating miners accept the change, Bitcoin could eventually be made
divisible to even more decimal places.
Invention of Bitcoin!
Jan. 8, 2009: The first version of the Bitcoin software is announced on The Cryptography Mailing list.
Who Invented Bitcoin?
Before Satoshi
Though it is tempting to believe the media's spin that Satoshi Nakamoto is
a solitary, quixotic genius who created Bitcoin out of thin air, such
innovations do not typically happen in a vacuum. All major scientific
discoveries, no matter how original-seeming, were built on previously existing
research. There are precursors to Bitcoin: Adam Back’s Hashcash,
invented in 1997, and subsequently
Wei Dai’s b-money, Nick Szabo’s bit gold and Hal Finney’s
Reusable Proof of Work. The Bitcoin whitepaper itself cites Hashcash and
b-money, as well as various other works spanning several research fields.
Perhaps unsurprisingly, many of the individuals behind the other projects named
above have been speculated to have also had a part in creating Bitcoin.
Receiving Bitcoins As Payment
Bitcoins can be accepted as a means of payment for products sold or
services provided. If you have a brick and mortar store, just display a sign
saying “Bitcoin Accepted Here” and many of your customers may well take you up
on it; the transactions can be handled with the requisite hardware terminal or
wallet address through QR codes and touch screen apps. An online business can
easily accept bitcoins by just adding this payment option to the others it
offers credit cards, PayPal, etc.
Working For Bitcoins
Those who are self-employed can get paid for a job in bitcoins. There are a
number of ways to achieve this such as creating any internet service and adding
your bitcoin wallet address to the site as a form of payment. There are several
websites/job boards which are dedicated to the digital currency:
Cryptogrind brings together work seekers and prospective employers
through its website
Coinality features jobs – freelance, part-time and full-time – that
offer payment in bitcoins, as well as other cryptocurrencies like Dogecoin and Litecoin
Jobs4Bitcoins, part of reddit.com
BitGigs
Bitwage offers a way to choose a percentage of your work paycheck to
be converted into bitcoin and sent to your bitcoin address
Look on Bitcoin
Unlike fiat currency, Bitcoin is created, distributed, traded, and stored
with the use of a decentralized ledger system known as a blockchain.
Bitcoin's history as a store of value has been turbulent; the
cryptocurrency skyrocketed up to roughly $20,000 per coin in 2017, but as of
two years later, is currency trading for less than half of that.
As the earliest cryptocurrency to meet widespread popularity and success,
Bitcoin has inspired a host of other projects in the blockchain space.