So much has happened this week! We saw a capitulation point of bitcoin before bears took over and we saw the selling pressure push Bitcoin down toward the $9000USD mark then move back up above $9100USD So far it has been a stable hold, however we may see some more action within the coming weeks.submitted by IOTAbesomewhere to Gravychain [link] [comments]
Widespread scamming within the Twitter-sphere, Youtube and other platforms as Bitcoin and other cryptocurrencies may seem like fair game. Cryptocurrencies providing big payouts for scammers without the ability for reversals of accounts. Remember if something seems too good to be true, do some research or just plain do not respond/believe it. Stay safe and careful with your funds!
On the brightside, there has been even more adoption of cryptocurrencies as rumours of Paypal utilising cryptocurrency has been confirmed as they are developing crypto capabilities. In addition to this we received exciting news at the start of this week about Binance partnering with Swipe (SXP) and offering a debit card to spend BNB, SXP, BTC and BUSD. ( I will be keeping a swift eye on BNB and Swipe as its utilisation as tokens has just increased 43 fold).
Positive news for the Bitcoin network as its hashrate reaches all time high which helps to secure the network further even though mining profits have dropped by 50% from the recent halving. If you didn't know already the last Bitcoin will be expected to be mined in 2140 with its difficulty ever increasing and each time securing the network further. Processing units will have to become faster, stronger and most importantly more cost effective to continue to entice miners for the block rewards and further renewable energy practices.
Furthermore we can see Central banks and countries discussing and developing Central Bank Digital Currencies (CBDC). Read more about it here https://www.investopedia.com/terms/c/central-bank-digital-currency-cbdc.asp and check out some of the developments in the world above. This shows the popularity and strong nature of cryptocurrencies. As the saying goes "If you cant beat them, JOIN them".
Overall, very solid week full of adoption, animation and anticipation. Another post next week for a weekly round up! See you then but in the mean time join us at our Gravychain Discord.
- DISCORD LINK: https://discord.gg/zxXXyuJ 🍕 Bring some virtual pizza to share 🍕
Come have a chat, stimulate a discussion, ask a question or share some knowledge. We are all friendly crypto enthusiasts up for a chat, supportive and want to help each other with knowledge and investments!
Big thanks to our Telegram and My Crypto HQ for the constant news updates! - The Gravychain Collective: https://t.me/gravychain - My Crypto HQ: https://t.me/My_Crypto_HQ
Contentssubmitted by D-platform to u/D-platform [link] [comments]
Proof of Work (commonly abbreviated to PoW) is a mechanism for preventing double-spends. Most major cryptocurrencies use this as their consensus algorithm. That’s just what we call a method for securing the cryptocurrency’s ledger.
Proof of Work was the first consensus algorithm to surface, and, to date, remains the dominant one. It was introduced by Satoshi Nakamoto in the 2008 Bitcoin white paper, but the technology itself was conceived long before then.
Adam Back’s HashCash is an early example of a Proof of Work algorithm in the pre-cryptocurrency days. By requiring senders to perform a small amount of computing before sending an email, receivers could mitigate spam. This computation would cost virtually nothing to a legitimate sender, but quickly add up for someone sending emails en masse.
What is a double-spend?A double-spend occurs when the same funds are spent more than once. The term is used almost exclusively in the context of digital money — after all, you’d have a hard time spending the same physical cash twice. When you pay for a coffee today, you hand cash over to a cashier who probably locks it in a register. You can’t go to the coffee shop across the road and pay for another coffee with the same bill.
In digital cash schemes, there’s the possibility that you could. You’ve surely duplicated a computer file before — you just copy and paste it. You can email the same file to ten, twenty, fifty people.
Since digital money is just data, you need to prevent people from copying and spending the same units in different places. Otherwise, your currency will collapse in no time.
For a more in-depth look at double-spending, check out Double Spending Explained.
Why is Proof of Work necessary?If you’ve read our guide to blockchain technology, you’ll know that users broadcast transactions to the network. Those transactions aren’t immediately considered valid, though. That only happens when they get added to the blockchain.
The blockchain is a big database that every user can see, so they can check if funds have been spent before. Picture it like this: you and three friends have a notepad. Anytime one of you wants to make a transfer of whatever units you’re using, you write it down — Alice pays Bob five units, Bob pays Carol two units, etc.
There’s another intricacy here — each time you make a transaction, you refer to the transaction where the funds came from. So, if Bob was paying Carol with two units, the entry would actually look like the following: Bob pays Carol two units from this earlier transaction with Alice.
Now, we have a way to track the units. If Bob tries to make another transaction using the same units he just sent to Carol, everyone will know immediately. The group won’t allow the transaction to be added to the notepad.
Now, this might work well in a small group. Everyone knows each other, so they’ll probably agree on which of the friends should add transactions to the notepad. What if we want a group of 10,000 participants? The notepad idea doesn’t scale well, because nobody wants to trust a stranger to manage it.
This is where Proof of Work comes in. It ensures that users aren’t spending money that they don’t have the right to spend. By using a combination of game theory and cryptography, a PoW algorithm enables anyone to update the blockchain according to the rules of the system.
How does PoW work?Our notepad above is the blockchain. But we don’t add transactions one by one — instead, we lump them into blocks. We announce the transactions to the network, then users creating a block will include them in a candidate block. The transactions will only be considered valid once their candidate block becomes a confirmed block, meaning that it has been added to the blockchain.
Appending a block isn’t cheap, however. Proof of Work requires that a miner (the user creating the block) uses up some of their own resources for the privilege. That resource is computing power, which is used to hash the block’s data until a solution to a puzzle is found.
Hashing the block’s data means that you pass it through a hashing function to generate a block hash. The block hash works like a “fingerprint” — it’s an identity for your input data and is unique to each block.
It’s virtually impossible to reverse a block hash to get the input data. Knowing an input, however, it’s trivial for you to confirm that the hash is correct. You just have to submit the input through the function and check if the output is the same.
In Proof of Work, you must provide data whose hash matches certain conditions. But you don’t know how to get there. Your only option is to pass your data through a hash function and to check if it matches the conditions. If it doesn’t, you’ll have to change your data slightly to get a different hash. Changing even one character in your data will result in a totally different result, so there’s no way of predicting what an output might be.
As a result, if you want to create a block, you’re playing a guessing game. You typically take information on all of the transactions that you want to add and some other important data, then hash it all together. But since your dataset won’t change, you need to add a piece of information that is variable. Otherwise, you would always get the same hash as output. This variable data is what we call a nonce. It’s a number that you’ll change with every attempt, so you’re getting a different hash every time. And this is what we call mining.
Summing up, mining is the process of gathering blockchain data and hashing it along with a nonce until you find a particular hash. If you find a hash that satisfies the conditions set out by the protocol, you get the right to broadcast the new block to the network. At this point, the other participants of the network update their blockchains to include the new block.
For major cryptocurrencies today, the conditions are incredibly challenging to satisfy. The higher the hash rate on the network, the more difficult it is to find a valid hash. This is done to ensure that blocks aren’t found too quickly.
As you can imagine, trying to guess massive amounts of hashes can be costly on your computer. You’re wasting computational cycles and electricity. But the protocol will reward you with cryptocurrency if you find a valid hash.
Let’s recap what we know so far:
That’s where public-key cryptography comes in. We won’t go into depth in this article, but check out What is Public-Key Cryptography? for a comprehensive look at it. In short, we use some neat cryptographic tricks that allow any user to verify whether someone has a right to move the funds they’re attempting to spend.
When you create a transaction, you sign it. Anyone on the network can compare your signature with your public key, and check whether they match. They’ll also check if you can actually spend your funds and that the sum of your inputs is higher than the sum of your outputs (i.e., that you’re not spending more than you have).
Any block that includes an invalid transaction will be automatically rejected by the network. It’s expensive for you to even attempt to cheat. You’ll waste your own resources without any reward.
Therein lies the beauty of Proof of Work: it makes it expensive to cheat, but profitable to act honestly. Any rational miner will be seeking ROI, so they can be expected to behave in a way that guarantees revenue.
Proof of Work vs. Proof of StakeThere are many consensus algorithms, but one of the most highly-anticipated ones is Proof of Stake (PoS). The concept dates back to 2011, and has been implemented in some smaller protocols. But it has yet to see adoption in any of the big blockchains.
In Proof of Stake systems, miners are replaced with validators. There’s no mining involved and no race to guess hashes. Instead, users are randomly selected — if they’re picked, they must propose (or “forge”) a block. If the block is valid, they’ll receive a reward made up of the fees from the block’s transactions.
Not just any user can be selected, though — the protocol chooses them based on a number of factors. To be eligible, participants must lock up a stake, which is a predetermined amount of the blockchain’s native currency. The stake works like bail: just as defendants put up a large sum of money to disincentivize them from skipping trial, validators lock up a stake to disincentivize cheating. If they act dishonestly, their stake (or a portion of it) will be taken.
Proof of Stake does have some benefits over Proof of Work. The most notable one is the smaller carbon footprint — since there’s no need for high-powered mining farms in PoS, the electricity consumed is only a fraction of that consumed in PoW.
That said, it has nowhere near the track record of PoW. Although it could be perceived as wasteful, mining is the only consensus algorithm that’s proven itself at scale. In just over a decade, it has secured trillions of dollars worth of transactions. To say with certainty whether PoS can rival its security, staking needs to be properly tested in the wild.
Closing thoughtsProof of Work was the original solution to the double-spend problem and has proven to be reliable and secure. Bitcoin proved that we don’t need centralized entities to prevent the same funds from being spent twice. With clever use of cryptography, hash functions, and game theory, participants in a decentralized environment can agree on the state of a financial database.
Hey, all!submitted by Changehero_io to CryptoCurrencies [link] [comments]
The sole purpose of this post is to give an outline of the things happening in crypto during the outbreak of Corona. The article is meant to share information and doesn't support any coin and is not meant to instigate FUD in the community.
Please comment your thoughts below and it helps us in delivering better content.
Thanks in advance.
The Convoluted Story of Crypto and CoronavirusThe recent Coronavirus outbreak in China has brought businesses to a standstill. It cost hundreds of lives and sent shockwaves to the entire world. On the other hand, the cryptocurrency market witnessed huge gains in early February and took a nose-dive in the last week. These series of events does bug everybody if the epidemic is impacting crypto. In this short post, ChangeHero will reveal what is happening to crypto amid this epidemic.
According to the World Health Organization Coronovirus disease (COVID-19), was first reported in Wuhan, China on 31 December 2019. A Bloomberg report suggests that there are 82,302 confirmed cases and 2,802 deaths worldwide, but China has been the most affected. In measures to contain the spread, the Chinese government has locked down cities and restricted the free movement of people which made the factories and businesses to shut the doors. The steep in the factory output has taken a toll on the Chinese economy and also threatened the global economy. Industries such as manufacturing, oil and gas, tourism and supply chain suffered the most. In the same vein, crypto is also not immune to this virus.
China has a history of crackdowns on cryptocurrencies and exchanges. On the contrary, they are spearheading the blockchain adoption race and working towards digital currency, quickly go through this article for more info about China and cryptocurrencies. Moreover, the top five mining companies — AntPool, BTC.com, BTC.top, F2 Pool and ViaBTC are based in China. These firms control almost 60% of the hash power in the Bitcoin network. Mining farms are the first to be affected by the outbreak and a few representatives of these firms expressed their concerns on Social Media. Many stated that the government has cut off the electricity, supplies and also drove away workers from mining facilities. It reflected in the difficulty of bitcoin mining, a measure which indicates the effort required to solve the math in finding the block. This measure is adjusted once every two weeks and in the last difficulty correction, the measure rose only by 0.52% which is significantly lesser than the previous corrections of 4.67 and 7.08.
Mining may soon turn out to be a not so profitable activity, credits to the Bitcoin Halving. Bitcoin will undergo its third halving event somewhere around May and the block reward will be slashed to 6.25 BTC. It leads to tougher and unfavourable economic conditions. To boost their chances of surviving, miners are gearing up with advanced machines. Yet again, China is one of the largest suppliers of the mining equipment. Coronavirus outbreak has also locked up the doors of the factories and the companies have postponed the deliveries. Although there is a significant impact on the crypto mining industry in China, Bitcoin hash rate has seen a negligible change.
To restrain the spread of the virus, the Chinese government has halted the distribution of Yuan worth almost a Billion Dollars. Meanwhile, the S&P 500 Index and other traditional markets have also recorded their worst performances due to the epidemic. Crypto community was quick to react and hinted that digital currency can fix this. Big names in the crypto sphere like Binance and Tron have also pledged support to the coronavirus victims. Moreover, the epidemic has spread a sense of terror amongst the community and led to the cancellation and postponing of the conferences and public events.
Amidst the crisis, CoronaCoin, an ERC-20 token was launched with the ticker NCOV. Though the website states that the token is meant for charity, it’s approach has shocked the crypto community. The cryptocurrency has a total supply equal to the world’s population and the tokens will be burnt every 48 hours, proportionate to the number of casualties. The concept of investors benefitting with the spread of the virus poses serious moral questions on this project.
Impact on the crypto
Bitcoin kickstarted the new decade with a massive bull run and crossed the ten thousand dollar mark in early February. Many have contributed this to the upcoming halving and some connected it to the coronavirus outbreak. Things didn’t fare well long for crypto and the whole market crashed and lost a whopping 50 Billion Dollars in the last week of February. The epidemic has indeed affected the people and processes behind the crypto industry but it is still unclear if there is a correlation between the coronavirus and the crypto market prices. Nevertheless, the notion of Bitcoin as a safe haven during the crisis still exists but hasn’t been proven yet, at least for now. We hope the crisis will end soon and peace be restored. Until then, all our strength to the effected, families and businesses around.
Upvote if you have liked the article and comment to spark a discussion. Follow ChangeHero for more of such articles and updates in crypto.
The article was originally published on our Medium profile and reposting it here for more reach. Thanks for understanding.
There are a few other remarkable characteristics that are a testament to the DNA of the team behind Decred: there was no sale of DCR to investors, no venture funding, and no payment to exchanges to be listed – underscoring that the Decred team and contributors are all about doing the right thing for long term (as manifested in their constitution for the project).The company will be hosting an event in Berlin, see Events below.
The most encouraging thing we can see is both the quality and quantity of high calibre developers flocking to the project, in addition to a vibrant community attaching their identity to the project.
Hey guys! I'd like to share with you my latest adventure: Stakey Club, hosted at stakey.club, is a website dedicated to Decred. I posted a few articles in Brazilian Portuguese and in English. I also translated to Portuguese some posts from the Decred Blog. I hope you like it! (slack)@morphymore translated Placeholder's Decred Investment Thesis and Richard Red's write-up on Politeia to Chinese, while @DZ translated Decred Roadmap 2018 to Italian and Russian, and A New Kind of DEX to Italian and Russian.
This is an in depth exploration of one of the most interesting projects in the space. (@ApolloCapitalAU)
"I think that developers in the future are going to base their decision on where to build on the basis of governance and community. And so I look for good governance mechanisms and strong communities in blockchains." (@decredproject)
Projects like these help Decred attract talent. Typically, the people that are the best at what they do aren’t driven solely by money. They want to work on interesting projects that they believe in with other talented individuals. Launching a DEX that has no trading fees, no requirement to buy a 3rd party token (including Decred), and that cuts out all middlemen is a clear demonstration of the ethos that Decred was founded on. It helps us get our name out there and attract the type of people that believe in the same mission that we do. (slack)Another concern that it will slow down other projects was addressed by @davecgh:
The intent is for an external team to take up the mantle and build it, so it won't have any bearing on the current c0 roadmap. The important thing to keep in mind is that the goal of Decred is to have a bunch of independent teams on working on different things. (slack)A chat about Decred fork resistance started on Twitter and continued in #trading. Community members continue to discuss the finer points of Decred's hybrid system, bringing new users up to speed and answering their questions. The key takeaway from this chat is that the Decred chain is impossible to advance without votes, and to get around that the forker needs to change the protocol in a way that would make it clearly not Decred.
Please note: we will not accept any kind of payment to list an asset.Bithumb got hacked with a $30 m loss.
To begin with, none of the below sites were showing the correct supply or market cap for Decred but we've made some progress. coingecko.com, coinlib.io, cryptocompare.com, livecoinwatch.com, worldcoinindex.com - corrected! cryptoindex.co, onchainfx.com - awaiting fix coinmarketcap.com - refused to fix because devs have coins too? (slack)
|Rate (per day)||107.80||1494.28|
Generated with BBoe's Subreddit Stats
We present to you the report filed by the analysts of our closed club for October 15–22.submitted by Golden_Island_Club to u/Golden_Island_Club [link] [comments]
Main market events
1) One of the world’s largest asset management companies, Fidelity Investments, announced the launch of a Bitcoin and Ethereum trading platform for institutional investors in early 2019.
2) MasterCard and VISA are imposing restrictions on card payments in underregulated and risky companies from such areas as Forex, binary options, cryptocurrency and ICO. MasterCard promised to do it next Monday, VISA — in December.
3) Users who lost their funds when a Singapore-based WEX exchange disabled the withdrawals decided to team up to take up the matter with the Russian police.
4) Barclays Investment Bank froze the launch of its crypto-trading project. The reason for that was not disclosed.
5) Sony will develop a blockchain for its written data copyright management system.
6) A new version of the Parity Signer app has been released, which allows turning old phones into crypto-wallets. It can also double as a security system on MyCrypto platform and MyCrypto wallet.
7) In Tolyatti, at the AvtoVAZ enterprise, a cryptocurrency mining farm was discovered. Since 2017, the farm has stolen 600,000 rubles worth of electricity from the enterprise, and mined over 1.2 million rubles worth of bitcoins.
8) By the end of the fall, the blockchain platform Telegram Open Network (TON) will be launched in test mode. The development of protocols, the mechanism of smart contracts and the TON blockchain network is almost complete.
9) Bithumb has officially opened a decentralized exchange. Until October 15, users will get a chance to run fee-free transactions and participate in the airdrop. Also, 1,000 most active traders will receive 500 ETH from Bithumb.
10) A New Zealand developer managed to send Bitcoin 12 kilometers away using four goTenna devices and a $30 Android phone without Internet connection, cellular communication or electricity.
11) Bitcoin Core developer Jimmy Song claims that EOS is a scam, and Ethereum is an amateur project. He is very enthusiastic about Bitcoin though.
12) Crypto enthusiasts caught American Express promoting articles criticizing Bitcoin. The American financial company that issues credit and payment cards, as well as traveler’s cheques, promoted a Twitter post of a Bloomberg TicToc news account with the title “The crypto industry is using more energy than all the world’s electric vehicles”.
13) Chief strategic officer of Ripple Cory Johnson claims that the administration of US President Donald Trump is concerned that China is a world leader in mining of cryptocurrency.
14) The head of the Central Bank of the Russian Federation Elvira Nabiullina stated that Russia has started forming a sound attitude to cryptocurrency.
15) On November 5, the USA will auction 660 BTC, which were seized by law enforcement agencies earlier.
Market analysis from club experts for October 15–22, 2018
The last week proved to be really good for many holders, despite the fact that BTC failed to grow over the week. Though Monday was surprising with its USDT rally. However, the things evened out later and no turmoil was observed over the week. After a huge $17 billion fall on Monday, the total capitalization climbed back to its usual level of $209–211 billion by Monday evening, where it remained until the end of the week. Monday’s trading volumes doubled due to active exchange of altcoins and the BTC, and then things got stable again: $22 billion on Monday, $10–12 billion by the end.
BTC dominated the market at 54% mark, a shift in the share would mean a change in the interests of traders, but this has not been the case so far. Price for 1 BTC grew from $6,300 to $6,800 (on some exchanges, the price reached $7,860) in a matter of hours, then bounced back to $6,450- $6,550 and remained around that mark until the end of the week ($6,515 at the time of the report). This spike in the BTC price was due to a well-planned campaign against the USDT. Persistent rumors about Bitfinex issues, idle wallets due to kernel updates, fake Tweet from Binance — all this resulted in short-sighted holders rushing to change USDT to BTC at any price — that of course just happened to skyrocket. If you are a trader, cool head and lack of emotion shall be your default state. If you are a long-term investor, stick with BTC and reliable altcoins. Second-guessing is not a good idea now! The silver lining is almost there!
TOP-3 growing coins from the long-term portfolio for October 15–22, 2018 (including portfolio updates) The fastest-growing coins for the last week: BAT + 52% (updates and rumors), Mysterium MYST + 34% (high-quality updates), Elastic XEL + 30% (major updates).
Changes in the cost and capitalization of the TOP-10 cryptocurrencies in October 15–22, 2018.
Do you want to be the first to receive updates and trade signals? Join @gitsupport and start earning with us!
In value terms, “fee-charging exchanges traded a total of $685bn in August, an increase of 50.13% since July while those that implement TFM models traded $125bn up by 53.94% since July.” Less than three days after Binance announced the release of its Launchpool service, users have now staked over $250 million worth of BNB tokens on the platform. The promise is that users would receive BEL tokens, the native token of the new DeFi project, Bella Protocol. Over $250M worth of #BNB is being used to farm #BEL tokens! Top Yearn.finance Farmer Sends $1.4m Worth of YFI to Binance NewsBTC 4 hours ago Published on October 27, 2020 12:00 GMT+0 edited on October 27, 2020 12:07 GMT+0 A Yield Farming Operation Gone South Recently, Alex Manuskin, a researcher at keyless wallet service provider ZenGo, claimed on Twitter that an anonymous investor had lost Uniswap tokens worth ... Binance cryptocurrency exchange - We operate the worlds biggest bitcoin exchange and altcoin crypto exchange in the world by volume Bitcoin News; Fry.World – A Yield Aggregator DeFi Project on Binance Smart Chain With High Rewards System . October 16, 2020. 654 ... The emerging concept of Yield Farming has been enticing to cryptocurrency investors since it allows them to earn passive income and rewards for holding their cryptocurrencies in permissionless liquidity protocols. Fry.World aka Fries is one of the first ... Cryptocurrency investors have withdrawn approximately 45,000 bitcoins from the derivatives exchange BitMEX following the recent charges brought by the US CFTC. The Big Winners: $145 Million Worth Of Bitcoin Transferred From BitMEX to Binance and Gemini Following CFTC Fiasco They can also solve Bitcoin blocks faster, which means they are definitely worth looking into. The Antminer D3 is an ASIC miner from Mineshop.eu is a good mid-range miner that has a hash rate of ... Binance’s Kava Supports Bitcoin Yield Farming. Kava has raised the bar for DeFi apps with the launch of Harvest.io. An automated money market (AMM), Harvest.io opens the yield-generation capabilities of DeFi to major crypto assets like Bitcoin, XRP, and more non-Ethereum projects. Fazit zum Mining von Bitcoin. Wenn Sie am Mining von Bitcoin interessiert sind, kann das auf lange Sicht eine sich lohnende Entscheidung sein. Sie haben die Wahl zwischen Mining mit eigener Hardware oder im Pool oder durch Cloud-Mining.Beide haben ihre Vor- und Nachteile gegenüber den Bitcoin Kauf.Grundsätzlich profitieren Sie als Miner von steigenden und stagnierenden Kursen und damit ...
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#bitcoin #bitcoinmining #bitcoinmininghome Is Bitcoin (BTC) mining worth it Dec. 2018? BTC mining ASICs from China profitability in 2018....Bitcoin mining at... Twitch: http://www.twitch.tv/veritas Discord: http://www.discord.gg/veritaswtf Twitter: http://twitter.com/veriitasgames Instagram: http://www.instagram.com/... SUBSCRIBE TO CHANNEL NOW - http://fuk.io/yt - CLICK HERE TO SUBSCRIBE #bitcoin #yieldfarming #binance http://fuk.io/coinex share 10 000 USDT with new account... Bitcoin Technical Analysis & Bitcoin News Today: Is Binance margin trading the new thing? On Binance you can now trade with up to 20x leverage on many cryptocurrencies. People are leaving BitMEX ... This video is unavailable. Watch Queue Queue. Watch Queue Queue Queue Binance Pool’s first product offering will be Bitcoin mining, using a FPPS payment method. - BitPay Partners With Binance to Support BUSD Payments Around the World Buy Bitcoin, Economic Turmoil, Binance US Listing 30 Coins & Massive Bitcoin Mining Farm The Modern Investor. Loading... Unsubscribe from The Modern Investor? Cancel Unsubscribe. Working ... My Second Channel: https://www.youtube.com/channel/UCvXjP6h0_4CSBPVgHqfO-UA ----- Supp... In meinen Videos geht es um Bitcoin, Ethereum, Blockchain und Kryptowährungen generell, um Scam, Abzocke und Betrug besonders im Mining keinen Platz zu geben. Ich spreche darüber, wie du schlau ... Binance Coin cryptocurrency review: BNB Exchange and CZ. In today’s episode Charles will review the BNB token. Cryptocurrencies, ICOs, blockchain, and altcoin investing offers new crypto ...