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Bitcoin has taken the world by storm over the last couple of years. everyone, be it a kid or an elderly person, seems to be talking about Bitcoin as it is deemed to be the instant way to become rich. And quite rightly so, as there are numerous stories of people going from rags to riches just within a matter of days/months. This has led people believing bitcoin is an instant way to become and they are often seen asking: how to buy a bitcoin / bitcoins?

How to buy and sell bitcoin for cash

The best and safest way to buy Bitcoin is through exchange. There are numerous exchanges that sell Bitcoin both in bulk and minority. Some reliable exchanges are: CoinBase, BitQuick, Wall of Coins.

Once you have bought bitcoins and held them long enough to significantly appreciate in value, it’s time to sell.

Don’t know how to sell bitcoins?

Trade them at an exchange or find buyers in your area through local bitcoins and sell them on high returns.

You can sell Bitcoin for cash, commodities such as gold, or something you want to have in your locker to look at.

Remember that Bitcoin is highly unstable and continuously goes up and down in value. So, don’t hold much on your bitcoins and sell them right when the profit is high.

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  1. Best way to buy or sell bitcoins worldwide without any ID or verification required with no transaction fees! cryptoexmart buy bitcoins from you at great prices and sell at extremely low prices and There is no verification required!

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Bitcoin & Ethereum Drive Cryptocurrency Market Cap Above $150 billion

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Bitcoin and Ethereum’s Gains

It only took a few hours for Bitcoin to shoot back up from $3,894 to $4,264.26 on Wednesday, which caused the total market capitalization of the entire cryptocurrency world to surge above $150 billion.

It’s opposite team mate, Ether, also rose on Wednesday, marking the highest it’s ever been since June. These two unknowingly, drove the market cap of the digital currencies insane.

In particular, at the moment Bitcoin’s market capitalization is around $69.8 billion, which makes it twice as large as Ethereum, its closest rival.

However, Bitcoin has been a tad bit volatile lately, suffering from a 10% drop after it had crossed $4000 earlier. These fluctuations were an after effect of the scaling issue that was recently undertaken by the network. This is intended to increase the transaction sizes in the blockchain network. This new protocol is known as Segregated Witness, which is said to solve the scaling matter.

Related: Bitcoin drops below $4000

 

On the other hand, Ether rose to $324.07, its highest since June 23. It’s known to have doubled since its last low hit in mid-July. Overall, its performance has been well in 2017, as it is up more than 4000%, which brings its market cap to around $30.1 billion.

These recent increases in Bitcoin and Ether have brought together the total market cap of all digital currencies above $150 billion.

 

News Credit: marketwatch.com

 

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Bitcoin News Today – Bitcoin Involved in a Civil War, Here’s One Way to Explain

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Bitcoin Civil War:

A civil war is going to take place in Bitcoin world, it is putting the future of red-hot digital currency in question. Bitcoin is high over 250 percent since last year, but its price has experienced big swings in the past few months. The CEO of BitMex, Arthur Hayes, he thinks the recent instability in the price of Bitcoin reflects the doubt surrounding the outcome of this war, that would decide on 1st of August when crypto-power dealers determine how the technology will structure that influence the currency.

The Main Story:

The current Bitcoin battle relates to the design of digital currency. According to Bitcoin campaigner Paul McNeal, the blockchain network of Bitcoin can only process so much data at a time. In technical language, the blocks which transfer the information in the chain are restricted in their size to 1MB.

McNeal says this was done for the purpose to protect the blockchain network from the hackers and some other cyber security threats. As the number of digital currency users has increased, so it takes more time for transactions to process. According to Morgan Stanley, Bitcoin transaction has made more expensive because of this, which is one of the main reasons that why merchants have not been so active to accept Bitcoin as a form of payment. Consumers have limited places for their Bitcoin to spend and it shows that merchants don’t have a sufficient number of consumers to make it worth, to invest the energy, and the capital to understand and accept.

The Battle Line:

The size issue of blockchain has drawn a battle line between the two main camps. On the one side, you have people which are mostly miners, who think that the size of blocks should increase because it will be economically profitable to do so.  The other are those people who want to maintain the size of the blocks, safety, and security of the network.

People who want to maintain the block’s size are the core developers. They maintain the code and also responsible for apply changes when necessary for future innovation, according to McNeal. By this job, they keep the blockchain stable.

The view to increasing size of the blocks more than the current 1MB cap will be a risk to the whole networks. For this purpose, they’ve come up with another solution to the problem called as SegWit. Some core developers are trying to move the activity on Bitcoin blockchain to an external network.

Bloom berg wrote that moving data from the blockchain successfully diminish the inspiration of the miners, people who are basically from China, and the people who have invested millions in huge server farms.

According to McNeal to find a middle ground for all of them, some miners and business executive have created a proposal, called as SegWit2X, that would change the threshold for applying SegWit down to 80 percent and also it allows for a small increment in the size of blocks in the chain to 2MB.

Fundamentals on the both sides of the dispute are in their positions. This may finally lead to a split in Bitcoin world, thereby making more than one Bitcoin currency.

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Cryptocurrency Market Rebounds: The Market Valuation Has Surpassed $400 Billion

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Finally, the cryptocurrency market has surpassed $400 billion in valuation after such a long correction and since 10th February, the market has been recovering really fast; however, it’s still not ready to instigate strong rallies.

Speedy Recovery:

At this time, all cryptocurrencies in the market have the market valuation of $418 billion as a whole, and the price of Ethereum has leaped over $840, whereas the price of bitcoin has hit $8,525. The price of native cryptocurrency of the Ethereum network “Ether” fell to $820 recently and is now following the same trend as bitcoin over the past few weeks.

Generally, we can say that the whole market has been following the trend of major cryptocurrencies, which includes both Bitcoin and Ethereum because in times of extreme instability, the cryptocurrencies that have huge market caps tend to work as stand-by currencies of the market.

Cryptocurrency market rebounds

In the past corrections, the cryptocurrency market recovered really fast because the casual investors and newcomers still had hope that the market would recover within a short period of time. This correction was quite different from the previous ones and the media also reported many stories that focused only on the investors who lost their money, rather than the positive developments within the cryptocurrency sector. South Korea continued to show sanguinity throughout 2017 however, it was still hit with a bear market recently due to the negative press.

As the cryptocurrency market has got negative press all around it, even with the fervent approach of regulators, as it’s been seen in US CFTC (Commodities and Futures Trading Commission) and US SEC (Securities and Exchange Commission) congress hearing, few more weeks will be still required for the market to recuperate and the major cryptocurrencies like Ripple, Ethereum, and Bitcoin to regain their absolute thresholds at $10,000, $1,000, $1 individually.

Market Will Soon Bounce Back:

According to the CEO of Pantera Capital, Dan Morehead, within few weeks, the cryptocurrency market could start assembling. He added, he’s certainly aware that it’s a very speculative market and is volatile on the downside for the past 52 days. He thinks that in a couple of weeks, everything will get back to normal and the price of bitcoin will start to grow back once again.

Morehead highlighted that bitcoin is still “under-owned” by the retail traders and if the institutional investors adopt the asset class, the market could grow really quickly.

 

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Bitcoin TUTORIAL – How to get a wallet and your first bit coins

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The blockchain immutability myth

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The blockchain immutability myth

Immutability…. We use this word in daily routine to signify a thing, which can never change. Whereas, in the blockchain, this word is referring to the worldwide transactions. Which is adjust by the participants. Here, the basic approach is, once the block blockchain transactions are complete, it cannot replace or reverse by other transactions.

So, the theory goes. Because

Saint Augustine states, “The highest good, than which there is no higher, is the blockchain. And consequently it is immutably good, hence truly eternal and truly immortal.”

Two prominent examples are,

  1. Under certain conditions, through some necessary adjustment transactions, history can change itself. Here, the question is arises, it easy to bring new changes in the content of the blockchain? Is it really easy?
  2. According to cryptocurrency advocates, immutability achieves only in case of decentralization of economic mechanism. Which is not proper fall at the private sector of the blockchain. Because, they totally depend on the collective behavior of a known group of validators, who are not trustworthy.

Above two circumstances are totally wrong. Because in blockchain there is no immutability thing exist. The proper question is,

Under which circumstance the blockchain will or will not change? And,

Do those conditions match with the problem, we are trying to solve?

Instead, the chain’s behavior depends on the network of a computer system. Before we get into the detail of how we ‘ll summarize the basics of blockchain first.

Brief discussion on Blockchain  

A blockchain system is running onto the different set of nodes. Which may be in control of different companies. There is no individual node who control the others. While nodes are connecting with each other through a proper network. These nodes generate and propagate transactions and rapidly spread to other nodes via digital operations in some kind of database.

Every new upcoming transaction is verified by an independent node. Following are some terms of verification;

1.it is totally in obedience of blockchain rule and regulations.

2. it is completely a digital structure

3. If any transaction passes the test of nodes. It will enter to the local list of not confirm transactions means directly in the memory pool. While others will enter in the orphan pool. In addition, pass transactions will be forward to its peers.

With some intervals, a node which contains the set of as-yet unconfirmed transactions on the network generates a new block. Each block contains the hash (32-byt). Therefore, by creating a little block chain, each block includes the timestamp. Accordingly, link to the previous block via its hash.

Validation Process

Blocks move and verified by nodes across the network like transactions. For the acceptance by the nodes, a block must contain proper transactions including no conflict with other ones. Whereas, with the confirmation of the test, it is entering into the local blockchain and transactions are confirm. Any transaction which conflict with others will discard immediately. Whether they are in memory pool or orphan pool.

Participation of the chain, make the strategy to ensure the generation of blocks.   This ensures indicates that any kind of node. whether it is an individual or a group has no ability to take hold of the blockchain’s content.

Authentication and testing

Proof-of-work a public blockchain allow its users to generate block who has the ability to solve the tricky and fiendishly mathematical puzzle. Whereas, to prevent minority control in private blockchains, blocks are signed by authorized members. In order to create a lawful chain, a product needs to legalize validator by using mining diversity.

Two different validator nodes can generate conflicting blocks when both have the same previous points. However, fork happens. While different blocks are seen by nodes and leading them to have the different opinion about the chain’s history. These forks are resolved on the arrival of new blocks on branches by a blockchain software.

Shorter branch’s node spool back its last block and replay these two blocks on the longer one. Unfortunately, if you are unlucky and both branches will extend. Then the conflict will be resolved by the third and so on. In addition, with the increase in fork’s length, the probability of a fork persisting drops increases. After a small number of the blocks, it can be reduced to zero in private blockchain.

Here, the most important thing to remember is, each node is controlled by a particular person. Where blockchain has not authority to ask some changes in transactions. The main purpose of the chain is to help in sync. But, if participants want to change the rule, no one has authority to stop them.

That is why we need to stop asking about the immutability of blockchain. Because the answer is “no”. Arguably, we consider the conditions under which it needs changes.

 

 

The blockchain immutability myth

Public chain’s mutability

Let’s start with the above mention two examples. We will take the start with the claim that authorization process. Which used in blockchain cannot bring true immutability by public chains. e.g.

Ethereum blockchain faces a devastating situation in June 2016. “the DAO”, loophole found by someone. In which, $250 million were invested and start draining its speed. Which distract the both investor and creator’s intentions. After few days, the ethereum software updated to prevent from hackers. It was publicly supported by Vitalik Buterin that ethereum users will control their own computer system. As a result, a large number of users, blockchain comes with the new name and rules is ethereum. Whereas, minority reject this idea and keep going with ethereum classic. There were more choices for names like ethereum compromise or ethereum pure. Whatever, democracy is the democracy, and everyone has their own rights voice. In addition, ethereum is ten times more than ethereum classic.

Now, we will take a common way, in which blockchain’s immutability will be dilute. Recall that mining of bitcoin and ethereum uses proof of work scheme. Where you get a reward for solving a tricky puzzle. In addition, this reward increases the potential of the users and they solve the relating issues more efficiently. Network continually adjust the rate of block creation. In addition, 10 minutes in bitcoin or 15 seconds in

Immutability of blockchain

Bitcoin has faced the factor difficulty of 350,000x from last 5 years. Today, bitcoin mining is on hardware devices with cheap electricity and in cold weather. Antminer S9 mines the block 10,000 faster than a desktop system. Which burns 10 times more electricity than a system with cost $1089.

To undermine the immutability of bitcoin blockchain, you need to install more mining capacity, then the other network creating 51% attack first. Secondly, through proper testing and approval, mine your own secret branches. Finally, at desired time, release your secret branch to the network anonymously. Then, the whole process of a transaction will be without any scams or hacking issue. It is not easy to install a huge program. It needs a lot of money and electricity as well. And a common man or country who has the shortage of both. Unfortunately, are not able to adopt this way for immutability of bitcoin blockchain.

Let’s estimate the cost of a 51% attack which reverses a year of bitcoin transactions. At the current bitcoin price of $1500 and reward of 15 bitcoins (including transaction fees) per 10-minute block. Miners earn around $1.2 billion per year ($1500 × 15 × 6 × 24 × 365). Reasonably, they are not losing money. So, the total expense should be in the same range.

Rewriteable private chains

Now, let’s have a ride to private blockchains. Which was established for the needs of government and well-reputed organizations. According to the organization’s perspective, immutability is the commercial, legal and regulatory non-starter. Because it allows attacking the network anonymously. whereas, immutability can also be ashore in good behavior of other institutions. With whom, they have authority to sue or sign a contract. It is a bonus because private blockchains are less costly to run. Since blocks need just a node’s approval and digital signature. When a number of validators follow the rules. As a result, you get cheaper and stronger immutability than other digital currencies offer. Furthermore, the percentage of immutability may decrease when participants in chain decide to do so together.

Immutability is nuanced

People who don’t like the traditional banking system and government’s currency are perfect to use proof of work blockchain. Whose immutability rely on economic terms instead of participants. It may be an expensive operation. when parties agree to live with government or wealthy actors and bringing down the network. Accordingly, they believe that cryptocurrency technology and its value continue to grow and it will get more secure.

Finally, for most permission blockchain use cases. We probably don’t want validator nodes to be able to easily and cheaply substitute old blocks in the chain. As Dave Birch says “the way to correct a wrong debit is with a correct credit”. Rather than pretending that the debit never took place. Nonetheless, for those cases where we do need the extra flexibility, chameleon hashes help make blockchains a practical choice.

Good luck!

 

 

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