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Bitcoin is a decentralized digital currency. There is no physical existence of Bitcoin, just the verification and value it has been given by a global peer-to-peer network. All these transactions are recorded in Blockchains.

The blockchain is very much like a public shared ledger. All the confirmed transactions performed ever using Bitcoins are recorded in this ledger. These blocks are an ultra-secure data, treated like cash. All the transactions are received and sent through wallets which are digitally signed. To ensure security, bitcoin wallets come with a private key or seed. These signatures ensure that the transaction is performed by the current owner of the wallet and provides with the mathematical proof. In reality, there is no transfer of Bitcoins but the change of ownership and quantities of Bitcoins.

How Does a Transaction Work?

If person A needs to transfer Bitcoins to person B, the transaction carries three parts.

  • An Input- record of wallet of person A
  • An Amount- the number of bitcoins person A sends to person B
  • An output- person B’s wallet

How Can You send Bitcoins?

To send the Bitcoins to anybody you require two things.

  • Bitcoin address
  • Private key

A bitcoin address is generated by an individual randomly. It mainly consists of a sequence of numbers and letters.

A private is a secret key with a unique sequence of numbers and letters.

When person A wants to send coins to person B, she signs a message with her private key to authorize the transaction. The transaction will include,

  • Input (source wallet)
  • Number of Bitcoins to sent
  • Output (person B’s address)

Person A then sends the number of Bitcoins to the Bitcoin network from her wallet. Once entered in the network, miners will then verify the transaction included in the blockchain. The miners will then solve the mathematical puzzle and in the end, it will verify that person B is the new owner of the specified number of coins.

Blockchains

Just like account ledgers containing amount and names, blockchains function almost the same. People exchange money by changing this file.

For instance, if person A sells a product to person B for $5, person A’s balance goes up by $5 and person B will have a reduced balance of $5.

There are no third parties involved in the system, like banks or other financial institutions. So, who takes control and responsibility of controlling and maintain this ledger? Every coin holder maintains their own copy of the ledger. All the participants can see each other’s ledger and their balances. In Bitcoin ledgers, these names are exchanged with specific numbers to ensure anonymity.

To keep every ledger synced and harmonized, there is a protocol that needs to be followed. To do a transaction you tell everyone by broadcasting a message with your account number, the receiver’s account number and the amount to be transferred. Every coin holder around in the world will update their ledger.

There are people who help in maintaining the system. You can simply use the system to perform the transaction without maintaining the ledger.

To ensure sender is the real owner of the account, Bitcoin requires a signature to verify it, but a mathematical signature.

System

When an account is created, a private key is generated mathematically linked to that account number. The private key and the text from the transaction are processed through a special cryptographic function to generate a signature. To make sure the signature is done by the wallet owner and to the specific transaction, another function allows the other people to verify the signature. These signatures cannot be copied as they are unique to each transaction.

The main problem with the system is that this cannot verify when a transaction was performed.

For example, if a person falsely has to withdraw 2 cheques out of an account but it has enough money to cover one account. the bank will refuse the second cheque due to an inadequate amount of cash after the with drawl of the first cheque. It is much harder to determine the order in Bitcoin. Due to the scattered individuals all over the world taking part in the transaction, there may be a delay in different orders in different places. Fraudsters could lie about these time lapses.

Two recipients might both think their transaction is first and ship a product allowing the fraudster two spent the money twice.

New transactions go into a pool of pending transactions. These transactions then get into the giant chain that locks in their order. A lottery is then held, enabling participants to choose a transaction of their choice to solve a special problem to link them to the end of the chain. The person to find the solution first wins and gets their transaction next in the chain.

That’s how pretty much all the transactions in the Bitcoin system are performed.

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Ways to Earn Bitcoins 2017 – Earn Bitcoins in 8 Different ways

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Do you ever wonder where you can get free bitcoins from? Let’s make this clear, you cannot become rich overnight, everything requires dedication and hard work.

Here is how you can earn bitcoins in 8 different ways:

  1. Accepting them as a means of payment
  2. By completing tasks on websites
  3. From interest payments
  4. By mining
  5. By receiving tips
  6. Through trading
  7. A regular source of income
  8. Gambling

Earn Bitcoins by Accepting Them as a Payment:

It is so easy and quick to earn bitcoins by selling goods and services. All you have to do is enlist your shop or business and let the bitcoins roll in as buyers start appearing. Just follow these simple steps:

  • Get a free online Bitcoin wallet from Coinbase. Be sure to keep an eye on your bitcoins frequently to avoid any hacking issues.
  • QR code should be displayed with your bitcoin wallet address next to your cash register.
  • The entrance of shop should display the “Bitcoin accepted here” logo.

Earn Free Bitcoins By Completing Tasks on Websites:

Another way to get bitcoins is visiting bitcoin-related sites and carrying out small tasks on the web. These tasks include watching a video or an ad, playing a game or taking a survey. Here is a list of some of the sites that offer bitcoins for free:

  • BitVisitor: Requires you to log onto websites and watch videos. Each page appears for five minutes and then you proceed to the next. Fortunately, the payment procedure completes within an hour and you don’t even need to create a user account, just your Bitcoin address. Though, the number of bitcoins you earn may vary.
  • CoinWorker: Let’s you earn bitcoins by completing tasks. You must create an account here. Also, payouts are usually higher on here than most sites.
  • Bitfortip: Answer questions on forums and earn bitcoins. This service is a benefit for both newbie and experienced users of Bitcoin as it brings people together. Newbies can ask their questions and the experienced can answer them while receiving rewards in Bitcoin.

These are not methods to make you rich in a day, but ways to make you more familiar with the currency.

Earn Bitcoins From Interest Payments:

You can earn bitcoins through interest payments by lending your Bitcoin assets. It is a good way to make bitcoins from what you already have.

  • Lending directly: This when you lend out your bitcoins to someone you personally know and have assessed. You get to decide whether the borrower is trustworthy or not.
  • Peer-to-peer bitcoin lending websites: Sites such as Bitbond have listings of borrowers publishing funding requests to which you can contribute to their loan. The concept behind this is the same as for fiat currency loans. The borrower gets a certain amount over a specific period of time and repays the amount with interest. However, make sure that both the site and borrower are trustworthy.
  • Bitcoin banking: Place your bitcoins as a deposit with a site that pays you a fixed interest rate on these deposits. The good thing is you don’t need to diversify your bitcoins over many borrowers. In this banking model, you just need to trust one single browser, which is the bank.

Remember, always lend through sites you trust, because even fraudulent sites comply with the usual requirements that are present on legit sites.

Earn Bitcoins by Mining:

Mining is a process which generates new bitcoins. During mining, your computer adds new confirmed transactions to the blockchain and searches for new blocks. A block is a file that has the most recent Bitcoin transactions recorded in it when a new block is discovered, you receive a certain number of bitcoins. However, if you want to earn bitcoin by mining, know that it’s a time-consuming and costly process.

Earn Bitcoins by Receiving Tips:

One of the best ways to earn Bitcoin fast. It is pretty much like accepting Bitcoin as a means of payment. All you need is a wallet, a QR-code with your Bitcoin address on it and the people who can give you a tip. A simpler option for this would be your own shop. Simply display the QR-code and check each day what came in. Another cool way to get online tips is using Bitfortip which we have already mentioned above. This service allows you to get tipped in bitcoin as the name already says.

Earn Bitcoins Through Trading:

Arbitrage is the safest and most convenient way to make money with trading. Basically, this means that you buy an asset for a certain price and sell it immediately for a much higher price at another destination. Price differences between exchanges often occur for certain reasons.

The other way to earn Bitcoins from trading is simple speculation. In this case, you would buy bitcoins, wait until the price increases, then sell it for a fiat currency. When the price drops again, you buy more bitcoins and start all over again.

Earn Bitcoins as a Regular Income:

There aren’t many organizations that would be ready to pay you in bitcoins, but there are some and maybe there will be more acceptance towards this in the future. Apart from being employed by some company, you have the option of working from home for others as well. Here are some sites offering jobs and where you can post a job yourself. It is a very convenient way of working and many jobs can be completed from home.

  • Bitcointalk Forum Services Section-  Offers job listings that are paid in Bitcoins.
  • Jobs 4 Bitcoins- Has a focus on job offers for programmers on reddit.
  • BitGigs- Online job board with a variety of job offers. Do give it a look.
  • Coinality- Has a different approach, it locates the jobs around you by displaying them on a map. It comes in very handy if you are interested in locating a job somewhere near you.
  • XBTFreelancer- Another job site for gigs that are mostly software based. If you have programming or other IT related skills it is the place for you to earn Bitcoins with your expertise.
  • bitWAGE- Lets you find jobs that pay in bitcoin. It also lets you invoice your USA, EU, or UK employer or client in different currencies including bitcoin. This means that you can earn bitcoins from your regular job.

Earn Bitcoins From Gambling:

Online bitcoin gambling can come in a variety of forms. Casino games with live dealers and video slots, dice sites, sports betting, and poker are the most popular forms of bitcoin gambling currently available. Many casinos offer welcome bonuses for new and existing players, usually doubling your first bitcoin deposit on their site.

There are many sites available for bitcoin gambling, each with their own games, bonuses, jackpots, and prizes such as Bitcoin Casinos, Bitcoin Poker, Bitcoin Dice etc.

As you can see, cryptocurrencies are now demanded by everyone. While you do have to invest a certain amount of time to get rewarded, it is still a learning experience for those new to the digital currency community.

Those who want to just skip all these steps, simply want to buy Bitcoin and are wondering where to buy bitcoin, CoinBase, CoinMama, and CoinPanda are some of the most reliable exchanges to buy Bitcoin. Good luck with the purchase!

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Cryptocurrency Security – Here’s All About Its Three Layers!

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So, what’s a decentralized system? In simple words, we can say that a decentralized system works with no servers and each member is permissible to execute transactions. But in the case of the blockchain, each member must have to do some system-tasks as well, such as; storing transactional data.

cryptocurrency Security

Fork: Even a group of members can run an alternate-version of reality, which is called “fork.” The fork works by the similar regulations as the original decentralized system – though it might have a diverse state.

Let’s enlighten you about the hierarchical nature of cryptocurrency security!

First Layer – Tokens and Crypto Coins

  • One of the first and foremost thing in the crypto world is your cryptocurrency security.
  • Whenever you choose a cryptocurrency, you take all the perils and risks related to the protocol.
  • If someone can recognize and utilize protocol flaws, they can compromise the whole network, even including you; it won’t be much important which exchange/wallet you are using.

In the first layer, you can find two different types of currencies which include, the coins (Bitcoin, Ethereum, Bitcoin Cash etc.) and all ICO-issued tokens such as; MOBI or EOS.

What is the Difference?

Well, the difference is in the technical features. Each coin is either an independent network protocol or just a copy of some of it. When you research a crypto protocol from a security stance, make sure to find out if it can be centralized.

Let’s take an example!

In the case of Bitcoin, it’s now centralized around four major mining pools which also means that if all of them collaborate, they can possibly compromise the whole network.

Another advice! Whenever you look for proof-of-stake crypto, make sure to have a look at the genesis. This is also quite imperative, as whoever keeps the preliminary and initial stake can vote for transitions, as well as the network will be also trusting those who have higher stakes. If we take an example of NEO, a PoS network of China, which is same as Ethereum, was distributed 50/50 amid its ICO sales and developer community – unlike Ethereum distribution. Also, the NEO token distribution makes sure that no major stakeholder from the exchange platform or the developing side has enough stake to compromise the whole network.

Tokens

  • Now if we talk about tokens, all of them are based on a smart-contract aspect of few of the coins, which means their reliability and security is first based on the parent cryptocurrency – only subsequently on the smart contract’s code that issued it.
  • Mostly, all ICO coins (tokens) are based on Ethereum and just some of them are issued by smart contracts.
  • Also, it is imperative to point out that Ethereum got hacked a few years ago due to the DAO protocol hack – later hard forked and rolled back to the state. This also shows that the founders of Ethereum probably have a time machine as it looks like they have the ability to go back in time – yet again if it’s required.

Second Layer – Exchanges

One thing that everyone must understand about the exchanges is that they are written in custom-code with infrastructure security and has got nothing to do with blockchain. If we talk about an exchange, it is just a standard centralized web service arrayed in a data centre. That’s why whenever we talk about the exchanges, we always mention reliability and trust.

Almost every month we hear news about the data breaches and security events that occur because of exchanges.

Examples

Here are some latest examples!

  1. Back in December 2017, $63 million in cryptocurrency was stolen from NiceHash by hackers.
  2. At the beginning of this year, January 2018, more than $500 million in cryptocurrency was stolen from Coincheck by hackers.
  3. In February 2018, almost $195 million in cryptocurrency was stolen from BitGrail by hackers.

The hype around cryptocurrencies is due to the number of data breaches. Many exchanges have recently started their business – without investing in proper security measures. Simultaneously, if someone steals tokens/crypto coins from an exchange successfully, it’s nearly impossible to do anything about recovering it.

Third Layer – Wallets

Well, the third layer is linked to your personal security in the crypto world and you must’ve heard a lot about it before.

When you select a wallet for cryptocurrencies, you’ll have two options:

  1. Hot Wallet
  2. Cold Wallet

Hot wallet Vs Cold Wallet

  • The hot wallet is just like an account in exchange or in simple words, it is a website-based wallet.
  • In the case of a hot wallet, your tokens/coins are under the control of your wallet provider.

Whereas, a cold wallet can be a hardware, software or just a paper.

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How To Make A BitCoin Payment Using An Online Wallet Service

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Circle Plans to Make $60 Million Expansion in China

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We share content, information, messages and routine life on the internet. Money should also work in the same way as for transfer of information. Secure, worldwide, free, open without any central authority and most importantly, transfer of money with fun. In that case, we have an option chinese circle on vision, that we should be able to exchange values.

The main vision is to connect the world’s largest currency zones. That is why a foundation for this purpose has been established in US and UK. The foundation will transact Euro, Dollar, Pound, and other large currencies to blockchain technology.

Customers in the UK, US, and soon in Europe can soon perform these transactions. They will be able to do transactions in a secure and freeway through Circle’s social payment app.

With the rising of this technology, Circle is going to introduce this technology to its Chinese customers.

The Circle has launched a company in China manufacturing, raising $60 Million from Chinese investors. The company is keen on expanding into world’s second largest economy. Chinese firms including Baidu, CICC Alpha, Everbright Investment, IDG Capital Partners, and Beijing-based tech investment have reportedly made the latest funds.

Allaire says, “We’re not aiming to compete with the domestic market as that would be a suicide mission given the strength of local players like Alipay and WeChat, but we can connect Chinese consumers with the euro zone and dollar markets”.

Strategy in Financing:

IDG Capital Partner, the prolific Beijing-based VC led the $60Million strategic finance.

Along with IDG, Breyer Capital and General Catalyst Partners, we have brought on a powerful syndicate of major strategic partners in China, including Baidu, CICC ALPHA, China Everbright Limited, Wanxiang, and CreditEase.

These strategic partners make it sure that they will create an open, global, and free model of social payments. That will be enabled for the consumer in China, US, UK, and also in Europe.

Circle’s China Unit:

Circle’s China unit works as the local incorporate company. Allaire says,” Circle’s China unit has not launched any product. Whereas, there are already many pending deals with banking partner and legal license to operate.”

In payment process, Circle allows payments to countries in which this technology has not launched yet. Whereas, payments have transferred in Bitcoin within few minutes via blockchain network. Once the process of payment completes, the Bitcoin transfers to the currency. Circle’s aim is to connect China trading consumers with new global means of payments.

People’s Bank of China wants to launch its own digital currency. Basically, they want to decrease the cost of traditional paper money and boost policymakers. That is why they are in support of digital revolutions like Bitcoin.

Allaire finished with: “The company now adds the support for euro-denominated payments in Spain as the first step of a broader euro rollout.”

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