Notes

What is Bitcoin

Bitcoin is a digital currency that runs independently of any central authority or the oversight of banks or governments. Instead , it is based on peer-to-peer programmers and cryptography.



The public ledger is a record of all bitcoin transactions and copies are kept in various servers around the world. Anyone who has a spare computer can set up one of these servers, also known as an "node. There is a consensus as to who owns what coins is achieved cryptographically through these nodes rather than the use of a central repository of trust , such as a bank.



Every transaction is publicly broadcast on the network and shared from node to node. Every 10 minutes or so, the transactions are gathered by miners to form a group called a block . Blocks are then added permanent to blockchain. This is the official record of bitcoin's account.



Similar to how you'd keep conventional coins in a physical wallet virtual currency is stored in digital wallets and can be accessed through client software , or through a range of online and hardware tools.













Bitcoins can be divided by seven decimal places. A thousandth of a bitcoin is known as a milli and one hundred millionth of a bitcoin is known as an satoshi.



There is no anything like a bitcoin or a wallet. It's just an that there is a consensus among the community about who owns a coin. Private keys are used to prove the ownership of funds to the system when making a transaction. Someone could just memorize their private key and need no other method to locate or spend their virtual cash it is called a "brain wallet".



Bitcoin can be converted into cash?



Bitcoin can be exchanged in exchange for cash in the same way as any other asset. There are a variety of cryptocurrency exchanges online , where people can make transactions, but these can also be completed in person or using any kind of communications platform, allowing even small businesses to accept bitcoin. There's no official way integrated into bitcoin that can convert into another currency.








There is nothing inherently valuable to support the bitcoin network. This is not the case with many of the most stable nations' currencies since they left the gold standard, including the US dollar and the UK pounds.



What is the purpose of bitcoin?




Bitcoin was created to make it easier for people to transfer money via the internet. The digital currency was intended to offer a new payments system that could function outside of central control and nonetheless, be utilized in the same manner as traditional currencies.



Are bitcoins safe?



The cryptography behind bitcoin is based upon the SHA-256 algorithm created by the US National Security Agency. To crack this, for all intents and purpose, difficult as there are far more possible private keys that need to be tested (2256) than there are any atoms that exist in this universe (estimated to be between 1078-1082).



There have been a number of major cases where bitcoin exchanges were hacked and funds being stolen, but these companies always stored the digital currency on behalf of their customers. The site that was attacked in these instances was the website and not the bitcoin exchange network.



In theory , if a hacker could have control of more than half of the bitcoin-related nodes in existence, they could reach a consensus that they were the sole owner of all bitcoin, and incorporate this into the blockchain. But as the volume of nodes increases, the possibility of this becoming less feasible.



A serious issue is that bitcoin functions without any central authority. Therefore, anyone who commits an error in a transaction on their wallet has no recourse. In the event that you accidentally transfer bitcoins to the wrong person or lose your password , there is no one to contact.



But the eventual introduction of quantum computing as a practical technology might end up destroying everything. Much cryptography relies on mathematical calculations. They're extremely hard for computer systems of the present to handle in the present, however quantum computers operate quite differently and may be able to complete them within a fraction of second.



What exactly is Bitcoin mining?



Mining is the process used to maintain the bitcoin network and also how new coins are brought into existence.




All transactions are streamed to the network. miners group large volumes of transactions into blocks through the cryptographic equation that's hard to generate but very easy to verify. The first miner to solve another block, broadcasts that information to the system, and in the event that it's found to be accurate, is put into the blockchain. The miner gets rewarded by receiving a new created bitcoin.



What is built into the bitcoin software is a strict amount of $11 million. There will never be more than the amount that is currently in existence. The entire amount of bitcoin will be available in the year 2140. In roughly every four years, software can make it twice difficult mining bitcoin, by reducing the size of the rewards.



https://www.youtube.com/watch?v=5LMS0PIzGh8



In the beginning, when bitcoin was introduced, it was feasible to almost instantly mine coins using even a simple computer. Nowadays, it is a requirement for rooms of high-powered equipment. Often, these include the most expensive graphics cards skilled in processing calculation, which when paired with the volatile price of bitcoin could make mining more costly than it's worth.



Miners also choose which transactions to combine into a block and thus fees of varied amount are charged by the sender to provide an incentive. After all coins have been mined, these fees will be a source of incentive for miners to keep mining. This is necessary since it is what provides the structure of the Bitcoin network.



Who invented Bitcoin?



In 2008, the domain name .org was purchased. An academic white paper , titled Bitcoin: A Peer-toPeer Electronic Cash System was posted. The paper laid out the theoretical basis and the design for a digital currency free of any control by any organization or government.




The author, going by"the moniker" Satoshi Nakamoto and wrote: "The root problem with conventional currencies is all the trust that's required to run the operation. Central banks need to remain a trusted institution that doesn't debase the currency, but the history of fiat currencies has been filled with breaches of that trust."



The following year the software described in the paper was complete and published to the world, the Bitcoin network was launched on nine January, 2009.



Nakamoto continued to work on the project along with a variety of developers until the year 2010 when the author resigned it and let it to its own devices. The real identity of Nakamoto hasn't been revealed and they have not made any public statement in years.



Now , the software is open source. This means that anyone is able to use, view or contribute in the development of the software at no cost. Many companies and organizations are working to improve the software, like MIT.



What are the biggest issues with Bitcoin?



There have been a variety of critiques about bitcoin, such as the fact that the mining system is hugely energy hungry. It is said that the University of Cambridge has an online calculator that tracks usage of energy. At time of the 2021 year-end, it was estimated that it used more than 100 terawatts per year. In 2016, it was reported that the United Kingdom used 304 terawatt hours in total.



The cryptocurrency has also been connected to crime, with critics pointing out to it being the perfect method for black market transactions. passive income crypto reddit has provided this function for long, and the public ledger for bitcoin could be a tool used by law enforcement.















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