Monero is a privacy-focused cryptocurrency that resonates with a large number of users who are disillusioned with the level of financial privacy that public blockchain-based cryptocurrencies such as bitcoin and litecoin offer. Apart from offering users anonymity, Monero mining can be a profitable venture due to its CryptoNote protocol which is resistant to ASICs mining and enables anyone to mine Monero using a CPU.
Launched in 2014, Monero (XMR) has a number of features that set it apart from cryptocurrencies. Users are able to enjoy a higher degree of privacy since their balances are not broadcasted on the blockchain as is the case with bitcoin. This is made possible by the use of ring signatures, which operate by mixing a user’s account keys with public keys from the Monero blockchain to create a ring of “signers” and thus shielding users balances on the network.
Furthermore, privacy is also reinforced through stealth addresses to obscure the details of transacting parties. Stealth addresses are one-time addresses, generated randomly on behalf of the buyer on each transaction. This makes transactions on the network untraceable.
In proof-of-work cryptocurrency networks, mining refers to the process of miners contributing computational power to validate transactions and maintain the network. For instance, bitcoin miners generate hashes to solve complex algorithms to create blocks of validated transactions and include them in the Bitcoin blockchain. For their effort, successful miners are rewarded with new bitcoin. This reward works to incentivise miners to contribute to the processing power of the network.
The algorithms are solved by means of a hash function that produces a result within a certain range. In other words, a hash function takes a measured input and gives out an output of a specified length. In regards to bitcoin, the SHA256 is the hash function used. The hash rate is the computing speed necessary to solve a puzzle in the bitcoin code. The higher the hash rate the more likely a miner can succeed in finding the next block and receiving the reward.
Having said that, because of the level of difficulty of finding the correct output, mining can be an expensive and power intensive affair. In the early days of bitcoin mining, you could use a CPU or high-speed video processor cards. Nowadays that is no longer possible. The processing capabilities and high energy requirement needed can only be achieved through specialized ASICs hardware for bitcoin.
The high cost of specialised hardware coupled with the power needed prevents many people from mining bitcoin.
Monero, on the other hand, offers opportunities when it comes to mining. To begin with, since its based on the CryptoNote protocol, you can mine monero on a CPU or using a GPU. The hashing algorithm used in CryptoNote systems is known as ‘CryptoNight’ and was designed to build a more level and decentralised cryptocurrency.
Digital currencies that incorporate the CryptoNight hashing algorithm are AISC resistant, which means they cannot be mined using ASIC hardware. CryptoNight is built to take advantage of AES-Ni instruction, which allows for CPU mining with some of the work done by CryptoNight already being performed by hardware on modern consumer machines.
How to Mine Monero (XMR) on your PC
Monero is one of the few cryptocurrencies where you can still make money mining as an individual. A decent i5 or i7 should still make you a decent return and get you started.
Here is a step by step guide to CPU mining XMR on Windows:
- Set up a Monero Wallet: You can use MyMonero.com to create an account and ultimately set up your wallet. Ensure you save the string of words it gives you since that will be your password. Once you obtain this do not forget to copy your Monero address.
- Download the Miner and extract xmr-stak-cpu: Use this download link and choose xmr-stak-cpu-win64-zip.
- Determine the number of threads you should use: You must first examine how much cache and cores your CPU possesses. For instance, your CPU has 4MB cache and 4 cores. To decide how many threads you require to divide your cache by 2MB. This way you only need 2 threads, which is the result you get after 4MB/2MB. In a different scenario, your CPU has 16MB and 8 cores. The assumption would be you require 8 threads, which is not the case. If the number of threads you need to use is equal to the number of cores you subtract one. You can still work with 7 threads since it is not necessary to use all the cores and that is why we subtract one.
- Edit the config file: Here is an example of a config file. The threads you plan to use will be placed in the section under ‘cpu_threads_conf’ The file limit is seven threads so feel free to remove any you deem necessary. Also, remember to switch the wallet address at the bottom, to your wallet’s address.
- Load Huge Pages: In the config file you will notice a section showing how to allow huge pages on Windows.
- Execute XMR-STAK-CPU: Browse your xmr-stak-cpu folder and start up the ‘xmr-stak-cpu’ executable file. You are now mining XMR on your CPU.
As you can see from this guide, It is relatively to get started with mining Monero as you do not requite expensive mining hardware as is the case of bitcoin. Moreover, Monero has established itself as the leading privacy coin and has cemented its spot in the top 20 largest cryptocurrencies. That means it has a lot of upside price potential which could boost your Monero mining profits.
Ethereum: What You Need to Know About the World’s Most Popular Altcoin
Consistently seen to be not only the most popular but also the most profitable altcoin – Ethereum deserves your attention.
Well, now that we have your attention, it’s probably important to note that ether, not ethereum is the popular altcoin. While ethereum and ether seem to be used interchangeably most of the time, the fact is that ether is the cryptocurrency that’s associated with Ethereum – a distributed computing platform. To keep things straight if you’re new to altcoins, it’s always wise to seek the help of a trading platform geared towards beginners, like Bitvavo.
Stay with us, it gets weirder.
How it All Started
Vitalik Buterin, a programmer and co-founder of Bitcoin Magazine argued that bitcoin wasn’t reaching its potential. While the well-known cryptocurrency is fairly ideal for processing straightforward monetary transactions, it’s incapable of imposing any type of terms or conditions onto the system of payment. Meaning, that you can send and receive bitcoin, but you can’t request specific tasks to be executed in exchange for these coins. Or you can, but there’s no way of enforcing that either the tasks will be done, or the fees will be paid.
This is where Buterin made clear that he believed that Bitcoin needed a scripting language in order to create applications and contracts and Ethereum was born. While Ethereum began to develop in 2013, it wasn’t released until early 2015. Since that time, Ethereum has stuck to its initial premise of continually updating and upgrading its product to ensure usability, functionality, security, and decentralisation.
As opposed to the Bitcoin hard forks that have created much controversy and less than memorable offshoots of the coin, Ethereum releases prototypes for beta-testing. During beta-testing, the Ethereum network offers “bug bounties” for any users willing to stress test the proposed system update and its limits. Making beta-testing the new platforms incentivised.
While the network has seen their share of hard forks, they exist only in response to cyber attacks, as opposed to differing viewpoints on how the system should work.
Offering What Bitcoin Can’t
The progression of the program itself isn’t the only way in which Ethereum differs greatly from its predecessor, Bitcoin.
Ethereum Virtual Machine
While Ethereum can offer a transfer of monetary value through the use of ether – it’s a unique cryptocurrency – the network is truly designed to be something more. The ethereum network is what is considered a “distributed computing system”.
This means that much like in Bitcoin, millions of computers around the world are connected to a general network. These computers (called “nodes”) all interact with one another via messages or “instruction sets”. These instruction sets identify a common goal that all of the nodes are capable of working on cooperatively. This decentralised network is called the “Ethereum Virtual Machine”.
What makes this virtual machine so incredibly useful and unique is that it’s “Turing-complete”. This means that each computer is capable of understanding, executing, or recognising other types of instruction sets or programming languages. Meaning a computer in Istanbul is capable of simulating the same data requests as a computer in Zimbabwe… or Lima… or Boston, London, Toronto, and so on. Meaning that any node within the virtual machine is just as capable of carrying out a specific task as any other node.
This virtual machine really shows its versatility and usefulness when it comes to smart contracts. The name can sometimes be a bit misleading, as these contracts aren’t really “smart” but specifically programmed to execute certain functions without the use of an intermediary.
This is basically just a fancy way of saying that instead of using some human arbiter to ensure the terms and conditions of any agreement are carried out- a computer program does it instead. This not only saves people time and money but is infallible, as one step cannot continue without a previous step being carried out and verified first.
Imagine yourself walking up to a souvenir penny machine. These machines take a penny, squish a fancy pattern on to it, and allow you to bring home a fun piece of nostalgia back from your holiday. In order to get that coveted squished penny, a person must first insert payment (we’ll say about 50 cents) and a penny to be squished. Once the coins are accepted by a machine, the person then chooses their favorite design. The chosen design is then stamped onto the penny and it is delivered to the person.
You can’t walk away with a souvenir penny without choosing a design. There’s no way you could possibly choose a design without a penny to put it on, and you most certainly won’t get that penny accepted to be squished in the first place if you don’t pay your 50 cents. There’s no way to move from one step to another without completing each step in a sequence. This is how smart contracts work. Each term or condition must be met and verified before moving onto the next step. Each step must be completed in the order given to finish out the contract in which each party leaves with their purchase or their money.
Gas Computational Metering
Ether, the cryptocurrency associated with Ethereum, is much more than just another type of digital currency. In fact, it oftentimes works much more similar to a token one that pays for something called “gas”.
Gas is one other thing that enables Ethereum to create novel and dynamic agreements, as instead of paying directly for a service or product, ether is used to pay for the computational effort required in order to execute any specific contract. Much like we a meter to tell us how much we need to pay for water usage, gas is a system of measurement used to calculate the cost of computational effort.
Once the amount of gas required to execute any particular function is computed, a user then pays for that function in ether. However, it is a pay-before-you-go system. So, keeping in mind that gas is simply a unit of measurement, it is applied similarly in the way that you would think about using gasoline to go on a road trip. If you have a destination you’d like to get to, you must first go to a service station and fill up your car’s tank with gasoline in order to get to that destination.
However much gas would be required to fully execute all the steps of a smart contract, from start to finish, is calculated before the computation begins. Ether is then paid to the programmer who will be coding the contract, and as long as you have enough gas in the tank, the contract is then carried out in full.
Scam Alert! Scammers in Kenya are Now Using Facebook’s Libra to Defraud Crypto Users
Scammers in Kenya are now using Libra to make quick gains from unsuspecting victims through a company called Calibra Kenya.
According to its website, the “company” is promising to increase investors’ money three-fold within six months if they invest amounts from KES 20,000 to KES 950,000. The deadline for this “investment deal” (read scam) is November 31, 2019.
Facebook’s Libra is yet to Launch
“Calibra Kenya” is cashing in on Facebook’s Libra, a cryptocurrency that is not yet rolled-out. Calibra Kenya told Gadgets Africa that they are waiting for the Libra launch in January 2020 for investment to begin. However, it is currently unclear when Libra will launch. Facebook had originally announced 2020 as the launch date but the company has said that it will only launch until it has sorted out regulators’ concerns.
Since Facebook announced the cryptocurrency in June, the embattled crypto project has lost a quarter of its members while Mark Zuckerberg is set to testify before the US House Committee on Financial Services today.
The Kenyan “company” has borrowed the name from Libra’s digital wallet, Calibra.
Scammers That Are Also Self-Proclaimed Philanthropists
“Sir John,” a Twitter account holder promoting Calibra Kenya, claims he is a philanthropist. This is similar to a scam story BitcoinAfrica.io recently covered where the alleged swindler was a self-proclaimed philanthropist on LinkedIn. The aforementioned Twitter account also belongs to the Libra Cryptocurrency Association Kenya.
GROW your money by 3 times within 6 months. INVEST Kshs 20,000-Kshs 950,000 in CALIBRA KENYA and earn a return of 50% every month.
NB: LIMITED OPPORTUNITY.
Grab your ticket to financial freedom. INVEST TODAY.
— Sir John | Libra Cryptocurrency Association Kenya. (@SirJohnLibra) October 19, 2019
While scamming and philanthropy have nothing in common, it appears that scammers could have found a way to entice their victims in the name of social good.
Moreover, the fact that Sir John claims he is a nature-lover and a passionate entrepreneur and investor in the fintech industry goes to show how far scammers will go to appear legit.
Spotting the Red Flags
It might be obvious to most that Calibra Kenya is a scam but to some, this might not be the case. Therefore, here is a list of what is wrong with this “investment opportunity”:
- Libra has not yet launched. Anyone asking you to invest in a currency that does not exist is a fraud.
- Any individual or company that is promising a 50 percent return every month on investments is a scammer. Such high returns are unrealistic. Additionally, in a volatile market, returns cannot remain constant and are bound to fluctuate from month to month.
- Facebook’s Libra only has one association, the Libra Association, which currently has 21 members. These members are well-known international companies like Uber, Spotify, Vodafone, Mercy Corps, Xapo Holdings, PayU, and Coinbase. Libra Cryptocurrency Association Kenya and Calibra Kenya, therefore, have nothing to do with the real Libra Association.
- Should you consider a website with grammatical errors suspicious? Yes, you should! Calibra Kenya’s website is guilty in this regard.
- According to Calibra Kenya, investors will get their money back at the end of the contract. This is a cause for alarm as any legit investment platform should allow investors to withdraw their investment plus returns at any time.
- On their website, Calibra Kenya throws around crypto and blockchain-related terminologies to confuse and mislead their readers. For instance, they claim that they create smart contracts, that they are the official Libra cryptocurrency exchange in Kenya, and that they are a tier two member of the Libra Association. This does not make any sense and is only meant to confuse readers.
- The website contains a lot of payment information which is another red flag. It indicates they are only focused on making money.
- Their website is too “salesy.” Words like “investment opportunity,” “invest now,” and “we make your dreams a reality” are obvious red flags.
- Calibra Kenya does not provide a platform for investors to track their investments. That means that once you send them money, you have no way of finding out how your investment is performing. The only mode of contact is a phone number that they could easily disconnect.
Unfortunately, reports of crypto-related scams are increasing as major developments take place in the industry. Similar fraudulent websites also appeared during Telegram’s token sale, for example.
Particl Launches Decentralised Marketplace With Zero Commission Fees
Privacy-focused cryptocurrency project Particl has launched a decentralised marketplace with zero commission fees. The new e-commerce platform is leveraging blockchain technology to compete with the likes of Amazon and OpenBazaar.
Privacy and Zero Commission Fees
The new decentralised marketplace respects user privacy and does not require personal information from its users. The platform only requires a shipping address. Moreover, the decentralised nature of the Particl marketplace ensures that no commissions are added to sales as is the case on Amazon.
According to an article on Big Commerce, fees for sellers can be as much as 45 percent of a product’s cost on Amazon. Particl’s zero-free model, therefore, enables sellers to significantly increase their revenue and lower their prices to stay ahead of the competition while still making a profit.
“Using a combination of P2P and blockchain technologies, Particl Open Marketplace can provide a verifiable private shopping experience that ensures no user data can be created or collected by any party other than the one you are transacting with. The Particl protocol also brings the cost of buying and selling online to the bare minimum as no central entity can charge fees,” said Particl’s Project Marketing and Strategy Manager Paul Schmitzer.
How Particl’s Decentralised Marketplace Works
Particl is uniquely approaching fraud and trade insurance through the use of a double deposit escrow system without intermediaries and with zero fees. This system is based on MAD game theory where two parties deposit PART coins as collateral into a smart contract. Once the transaction between them is complete, the coins are released back to the parties and no fees are charged. This system allows users to be in control of their transactions and to eliminate fraud.
Since the marketplace is decentralised, the protocol generates all listing fees and redistributes them to the global network of users.
Particl is made up of three components: an untraceable multi-purpose privacy coin, a private decentralised marketplace where users can shop with cryptocurrencies, and a platform where developers can build decentralised applications.
Particl allows a wide range of cryptocurrencies and uses atomic swaps and third-party integrations to convert these coins to PART during transactions. The company will soon add more payment options to its marketplace.
In 2018, Bitcoin Africa talked to Particl’s spokesperson Desi-Rae about the project. Read the full interview here.
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