
Bitcoin (BTC)

- Privacy in transactions
- Possibility of changing the value of the cryptocurrency by another currency
- Security through a cryptography system
- low transaction fees
- Your anonymity is your worst enemy
- Invest in an unnamed stock exchange, and you risk losing your investment due to low liquidity or hackers.
- A lot of people really have no idea what Bitcoin is. You may be thinking: “Great, I can overtake everyone else.” But a misunderstanding about Bitcoin, or a complete lack of understanding, could actually lead to terrible consequences.
BITCOIN GOLD (BTG)
Origin: Conceived in October 2017 Founder: Jack Liao (China)Since the appearance of bitcoin gold in October of 2017, many people bet on the development and creation of a bitcoin daughter currency that will bring positive results when investing in it.
During the month of October of this year, the bitcoin gold maintained a stable price, but when the month of November began to observe a considerable growth of the same which caused the volume of the market to grow, and came to rise its value in 30%, this crypto-medallion promises to end the year being one of the strongest in the market, for this it must continue to gain affection and continue to offer advantages to.
Bitcoin Gold has appeared in the cryptocurrency market a few hours ago, and has done so with a notable difference: it will be a bitcoin version “resistant to ASICs”, or what is the same, that will not be able to be mined as is traditionally mining bitcoin. The big “cooperatives” and companies dedicated to bitcoin mining make use of thousands of ASICs, circuits specifically designed for this purpose, but Bitcoin Gold will not be able to be “extracted” in that way, since it will implement a new PoW algorithm (“proof of work “) That dependence that bitcoin has on ASICs is problematic because many of the miners are in China, where ICOs were recently banned and cryptocurrency exchange markets, the so-called exchanges, were closed. China is also the country where ASICs are manufactured, which meant that both mining and mining machines were too “centralized”. That is precisely what BTG seeks to solve, a cryptocurrency dedicated to “making bitcoin mining decentralize again”. Bitcoin Gold can be mined with GPUs, the method used by all those dedicated to Ether mining, for example, the cryptocurrency of the Ethereum platform. It also changes the way in which the difficulty of mining is managed: in bitcoin that difficulty is adjusted every 2.016 blocks (approximately every 2 weeks), but with BTG the difficulty will be adjusted after the production of each block “to avoid major changes in the total amount of computing power “. In Bitcoin Gold there is also a remarkable feature, the so-called ‘Replay Protection’ which makes that after the fork the BTC transactions are not duplicated with a BTG transaction. As happened with Bitcoin Cash, if you have 3 BTC in your wallet will appear another 3 BTG in your portfolio of that cryptocurrency, but if you spend a BTC to buy something that does not imply that there will also be a BTG less in that portfolio with the new cryptocurrency. Segwit2x, trying to completely replace Bitcoin The other big movement in the bitcoin segment could have much deeper consequences, because it is a “hard fork”, a new version of bitcoin whose idea is not to coexist with bitcoin, but to replace it completely.its followers, all in pursuit of continuing to climb positions in such a competitive market.

- Possibility of being mined by GPU
- offers protection against repeated transactions by adjusting the difficulty in each block.
- the difficulty is scaled individually in each block and its blockchain works in parallel with BTC, so we can mine Bitcoin Cash and make an automatic change to Bitcoin, without having to perform the operation in exchange houses.
- Volatility: since its creation it has had great ups-downs in price.
- Acceptance guarantee
- there is no country that establishes its existence, there is no Central Bank responsible for its issuance and regulation
CARDANO (ADA)



- is a next-generation Blockchain platform with more advanced features than any protocol developed, and the first to evolve from a scientific philosophy, sentenced on its Web site.
- One of its strengths is that, in less than a day of negotiations, its volume exceeds 94 million dollars, ranking 15th in the cryptocurrency ranking.
- Cardano is the first chain of blocks to use an algorithm of proven secure proof: the only one that has been reviewed academically by leading cryptographers through its acceptance of Crypto 2017, the most important cryptography conference in the world.
- A disadvantage that we observe from CryptoTendence is that there are 24,000 million Tokens (ADA) in circulation, which makes their offer very high. In addition, a total issuance of 31,112 million cards is expected.
- Cryptocurrency new that must earn the trust and support of people to grow and establish itself among the best in the ranking
MONERO (XMR)

In addition, Monero also automatically combines the data of a transaction with others of similar size, generating confusion and making impossible the task of anyone trying to trace an operation through the chain of blocks.
Monero is already preparing the implementation of another feature with which not only transactions would be impossible to track, but the IP addresses of those involved would also be hidden. This is the ‘software’ I2P, with which the anonymity will take another step further: although in the case of sending bitcoins the recipient does not know the IP address of the sender, those who undermine the cryptocurrency created by Nakamoto can know which. However, when that technology is implemented in Monero, not even they will be able to know it.

- an alternative absolutely focused on privacy and that was not based (like many others) on the bitcoin code.
- The privacy and anonymity provided by Monero have made this cryptocurrency one of the most interesting in the market
- high transaction fees
- lack of a graphical interface (the developers are in it) that facilitates the management of the currency or the fact that it is quite complex to check the balance of our XMR in our digital portfolio
- The absence of a wallet for the mobile phone – which makes it difficult to operate with XMR from our smartphones
ETHEREUM (ETH)

The spectacular increase in value that Ethereum has suffered causes a special interest in cryptocurrencies. In this year 2017, ETH has gone from being worth a few euros to reaching levels of around 300 euros per unit. Even the most cautious investor is considering investing.Here we can observe its great growth But Ethereum is not just a currency to speculate like the shares of the stock market, at least we want to think some developers who are excited about what is to come.
The cryptocurrencies were not created to speculate with them, even this eagerness to make money at their expense harms its main task: to create a distributed system, where we do not need a centralized entity (see banks) to carry out operations. That responsibility falls on a distributed blockchain of thousands of nodes around the world that give us the same security or more. For now, speculation is used to finance part of the Open Source project that supports Ethereum and the ecosystem behind it.
The possibility of creating intelligent contracts linked to these transactions shows the tremendous potential of a platform that will not only revolutionize finances but also the internet.
When we refer to Ethereum we can be talking about the protocol or network of nodes that supports the system. And the best known part for non-programmers is the Ether currency, the cryptocurrency of Ethereum.
The first thing Ethereum does is to decentralize the control of transaction verification. Briefly describing how he does it, we can say that the responsibility falls on a blockchain that acts as an immense distributed database secure and maintained by a large number of nodes connected throughout the world (the miners).
The data is stored in blocks, which are linked to each other identified by a hash generated next to a timestamp. All that information is immutable, that is, nobody can modify it. And even more is replicated throughout all the nodes that form the network. On the other hand, there are those projects that are currently being worked on to integrate the functions that the block-based system of the Ethereum allows to perform, these are projects a little more advanced than what would be considered normal for an electronic currency and, for Therefore, it is very important for the support of the user’s daily life.

- The time required for a block to be confirmed and validated by a miner and added to the block chain is 16 secon
- In Ethereum has not established a limit of coins for the mining as they happen with another type of cryptocurrencies
- Open source system like Bitcoin, which allows you to create improvements.
- Due to an attack suffered by ethereum and the loss of several ETH, the cryptocurrency ended up being divided into Ethereum (ETH) and Ethereum Classic (ETC).
- do not have an immutable blockchain
Bitcoin cash (BCH)



- It is an improved version of Bitcoin that fixes your most serious problems. His journey has begun in parallel to the original version of the cryptocurrency, and now it is a matter of checking which of the two has more pull.
- Bitcoin Cash has a good future forecast, and this digital currency has gained in popularity as the years go by.
- One of the great advantages of Bitcoin Cash is that it can be exchanged for traditional currencies at any time, in addition, you can make transactions conveniently from your mobile or computer.
- The disadvantage of Bitcoin Cash is that it is difficult to move it. If you buy Bitcoin Cash in Bitso, for example, you can not send it directly to a Bitcoin Cash wallet. First you would have to convert to Classic Bitcoin or Ethereum and then move.
- Your wallets or wallets are not well known
- Still do not have a reliable change example of bitcoin cash to paypal money
RIPPLE ( xrp)



- Ripple begins to sound a lot like an alternative to the current financial system and some voices suggest that it could be a substitute for Bitcoin but that, really, acts as a complement to the Bitcoin economy.
- Ripple is not a currency like Bitcoin could be but it is a credit system that allows us to carry out economic transactions paying small commissions (which aim to discourage bad practices that try to flood the network with many small transactions), that is, it is like if it was a PayPal but in a decentralized way.
- Accepted by the people and has remained among the best five best cryptocurrencies
- The same relationship with banks is seen with doubts by many users, as they doubt its decentralization and independence as currency.
- According to some research, it is said that the Ripple Network has some security flaws that can be very dangerous for both the function of operations in global currencies and for the same XRP.
- When observing its operation, it can be thought that there is an entity that centralizes it, since Ripple functions as a “Central Bank” for the XRP.
DASH


- System of “master nodes”: this is a network of servers whose users have at least 1000 Dash. Thanks to this feature, transactions with Dash are confirmed instantaneously (compared to 1 hour in the bitcoin network), in addition to allowing private exchanges and budgets.
- It has its own X11 algorithm, hash algorithm created by the developer of Dash, Evan Duffield
- Its use has no oversight of any authority.
- Tax evasion is what has alerted various economies, which already raise the need to look for locks for these values
- If we do not create a backup of the wallet, we can lose the money and that electronic currency would come out of the market circulation
POPULOUS (PPT)
Origin: Conceived in July 2017 Director: Stephen Williams

- Work articulated with ethereum, great strength because it has as support a cryptocurrency of great strength
- While banks and other financial institutions join forces to create financial platforms in the blockchain, Populous’s approach to finance through the blockchain is unique, in the sense that Populus is not subject to the same regulatory norms that impede to banks and other financial institutions to use cryptocurrencies in the blockchain environment.
- Because it is a relatively young crypto currency, it must earn the trust and investment of the people, for this they must work hard and become a reliable currency
STELLAR LUMENS (XLM)
Origin: Conceived in August 2014 Developer: Bartek Nowotarski

- is a platform developed based on a chain of blocks (the same bitcoin technology) that aims to facilitate transactions between different kinds of currencies.
- With the Stellar network, you can convert currencies in a matter of seconds and pay very low commissions.
- The developer of Stellar Lumens seeks to popularize cryptocurrency, so that sometimes it organizes large events in which it gives millions of lumens. This is a simple method to get Stellar Lumens free without any risk.
- This is a volatile cryptocurrency, so it is difficult to know how much a Stellar Lumen is worth at any given moment in time.
- Unfortunately, Stellar Lumens has not yet launched to its full potential, so getting direct exchanges with traditional currencies can be a problem. Similarly, it is difficult to transform Stellar Lumens into cash that you can spend in a store.
Summary Currently there are more than 1300 cryptocurrencies according to information provided by the coinmarketcap page, a variety that makes the world of virtual currencies more interesting each day, here I give you the coins that I think are most interesting at this time. If you came to this page and read it until now, you are probably really interested in investing in alternative currencies. What do you think about the selection? Write your comments that for us is very important Disclaimer: I’m not a professional on this subject, just a passionate about it
Hezi Hershkovitz
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Great blog. It was fun working on the project.