What Are the Advantages and Disadvantages of Using Bitcoin?
What Are the Advantages and Disadvantages of Using Bitcoin?
Bitcoin is One for All Gradually, Then Suddenly ...
Die Darstellung der Kryptowährung Bitcoin in der - GRIN
Is Bitcoin a good hedging instrument at times of ...
What are the Advantages and Disadvantages of Bitcoin?
Ultimate glossary of crypto currency terms, acronyms and abbreviations
10-04 05:44 - 'Why DeFi will give birth to killer applications in the banking industry?' (self.Bitcoin) by /u/SMOEY removed from /r/Bitcoin within 14-24min
''' The financial system is on the verge of collapse, and there are no superheroes who can turn the tide in the real world. Therefore, we must learn how to rely on our own hands to protect the money we have earned. Currently, the best way is to store funds outside the traditional financial system. Decentralized finance, or DeFi for short, may become a killer application in the banking industry. What exactly is DeFi? This is an ecosystem of financial applications built on the blockchain (especially Ethereum), which can operate independently without the intervention of third parties or intermediaries. In 2020, the DeFi economy has grown by US$4 billion and is currently one of the fastest growing sectors in the financial sector. The main problem with DeFi Currently the only truly decentralized financial application is Bitcoin. Anyone with access to the Internet can store and transfer funds in a decentralized manner. But DeFi has made a further commitment: to introduce decentralization into the mainstream public view. This will provide a global and open alternative to all financial services including savings, loans, investment and insurance. Next, we will introduce three DeFi use cases that are sufficient to disrupt the traditional banking industry: 1. Stablecoins Stablecoin is the first DeFi use case to achieve a blowout development. The idea of ”a cryptocurrency free from the long-term instability of Bitcoin” is very attractive to many people. On the one hand, it has price stability similar to the US dollar or the euro; on the other hand, it also has the speed and convenience of cryptocurrency. The stablecoin perfectly combines the advantages of the two. Currently, about 80% of encrypted transactions are conducted through Tether stablecoin. At the same time, other companies, such as USDC, TruUSD, Dai or PAX, have also experienced explosive growth in the past year. Therefore, the stable currency market definitely deserves our continued attention and expectation. After all, most bank customers are tired of inefficient and expensive services and increasing government supervision. 2. Decentralized Exchanges Decentralized exchange (DEX) is one of the most breakthrough innovations derived from DeFi. In recent years, the number of DEX has also shown explosive growth. According to data from Dune Analytics, monthly transaction volume in 2020 has grown to nearly $12 billion. So, what is DEX? The essence of DEX is a cryptocurrency platform, users’ assets can be traded without going through an exchange. Therefore, the risk of being stolen and attacked by hackers can be greatly reduced. Currently, the most popular DEX platforms are Curve, Balancer, 0x, Dydx, Kyber, Bancor, IDEX, Oasis and Gnosis Protocol. But in fact, the ultimate reason for attracting people to join DEX is the growing and more complex “know your-client process (KYC)” demand. It stripped the anonymity of customers and caused financial exclusion of more than 2.4 billion people. They are like cancer, engulfing the entire banking system alive. 3. Borrowing and Lending Applications To say the most compelling development in the DeFi field, one has to mention decentralized lending platforms. The DeFi lending platform can provide loans to users or companies without any intermediaries. Anyone can deposit their available assets into the shared loan pool, and those who want to borrow can withdraw assets from the pool. Currently, the most popular DeFi loan platforms are Compound, Maker, Aave and dYdX. At the same time, companies such as Blockfi, Celsius, CRED, Nexo and Crypto.com also provide annual interest rates of up to 10%. The lending platform enhances the flexibility of banking business and removes strict threshold restrictions on the location, identity, and assets of customers. This use case is expected to lead DeFi into the mainstream market. 4. Insurance The form of DeFi insurance is still relatively conservative. It mainly acts as a safety net in the DeFi ecosystem. Users no longer need traditional banks or institutions to ensure the safety of their deposits. Although decentralized insurance is not popular in the entire DeFi community at present, it is likely to disrupt the entire insurance industry in the future. If you want to learn about insurance products other than traditional insurance companies, you can check out Nexus Mutual, Opyn, Etherisc and CDx. Next, where are we going? DeFi is an interesting idea with trillions of dollars in potential. If we compare DeFi with the traditional financial system, it is not difficult to find the fatal attraction in DeFi. As you can see, some DeFi projects have replaced part of the business in the centralized encryption economy, and it will not be long before it will begin to replace the traditional banking and insurance industries. Now, the financial system needs to be repaired-to make it more transparent, open and efficient. Otherwise, if we don’t properly wrap up this broken financial system, 20 years later, we will eventually pay for our stupidity at this moment. Source:[[link]2 ''' Why DeFi will give birth to killer applications in the banking industry? Go1dfish undelete link unreddit undelete link Author: SMOEY 1: tr**ple.net*ork/2020***441*.*tml 2: t*u**le.net*ork/2020*00**11*html]^*1 Unknown links are censored to prevent spreading illicit content.
https://preview.redd.it/io0mkfpayel51.jpg?width=2560&format=pjpg&auto=webp&s=839666f628a9ae85fa3ef4ffb020c1c2ba598683 As the first country to industrialise in the 1760s, Britain’s manufacturing revolution set the world on one of the greatest practical and ubiquitous changes in human history. Even more extraordinary is the fact that Britain’s industrialisation remained way ahead of potential competition for decades. Only in the early 1900s did historians get to grips with the issues of causation. Max Weber’s pithy answer “the Protestant work ethic” pointed to Puritan seriousness, diligence, fiscal prudence and hard work. Others include the establishment of the Bank of England in 1694 as an essentially corollary by creating the necessary conditions for financial stability. In contrast, Continental Europe lurched from one national debt crisis to another, then through itself headlong into the Napoleonic wars. Unsurprisingly, it was not until after 1815 industrialisation took place on the European mainland where it was spearheaded by the new country of Belgium. 250 years latter with the launch of Bitcoin another revolution had begun; though this one more commercial in nature than industrial. Though the full impact has yet to be played out, the parallels between these two historical events are already striking. Bitcoin may not match the obviousness of industrialisation, but the underlying pragmatics touch on the very foundations of the non-barter economy. Like the establishment of the Bank of England, the creation of the cryptocurrency infrastructure has been prompted by ongoing and worsening threats to financial instability; systemic fault-lines created by macroeconomic challenges flowing from the 2008 crash. For those who could “join the dots” in 2008, there was the realisation that central banks no longer existed as guardians and protectors of national currencies but the tools of creating politicised market distortions; abandoning their duty to preserve wealth in favour of creating the conditions for limitless, cheap government debt. While many of the underlying intentions were benign, inherently the process worked to punish savers and reward reckless debt. This anticipation of on-going instability surrounding fiat currencies and the viability of crypto alternatives has proved more prescient than could have ever been previously imagined. Within a short space of time a wave of undercurrents gave rise to new vocabularies, outlooks and expectations which have impacted commercial and investment transactions, a change never more acutely observed than today, when even against the backdrop of the COVID crisis Central Banks are rushing to create their own “digital” krona, pound, dollar etc. “Digital” may represent a confusing nomenclature, however, as these are not cryptocurrencies in the true sense, and certainly not part of decentralised finance (DeFi). The digital krona does, however, manifest the increasingly powerful impact that the cryptocurrency ecosystem is having on mainstream banking and government behaviour. As with Britain’s industrial revolution, it has taken time for the potential of cryptocoins to find more energetic traction. Over the past 12 years cryptocurrencies have moved from unknown, to novel, to significant and growing interest. As a result, profound changes are underway affecting the mechanics by which investors, the investment industry, wealth mangers and even the commercial banking sector is engaging with cryptocurrencies. This interest has quickened as we enter into a period of deep economic unknown and growing awareness that structural soundness is shifting away from traditional investment options. Intelligent engagement requires cryptocurrency investors/wealth managers to accurately understand and correctly explicate the nature of these influences and assess their potential impact. This article suggests seven distinct elements (a non- exhaustive list) as currently ranking definitive importance:
Cryptocurrencies comprise account for only a tiny fraction of the global economy. At an estimated value of $375 billion, this is several orders of magnitude smaller than a world GDP of $35 trillion (2019). Assuming other factors are favourable, there is clearly room for growth.
Cryptocurrency success will mark the end of critical aspects of Central Banking monopoly; by revealing the fictitious nature of fiat currencies as a principle; by offering a more competitive vehicle for facilitating commercial transactions; and providing a more stable medium to store monetised assets. Apart from stability, cryptocurrencies offer real returns on “cash” deposits, something which the fiat banking system has long since abandoned. (The reasons for the latter are deeply significant and will be followed up in a subsequent article).
Cryptocurrency success will hasten the end of the dollar monopoly in global commerce. Indeed, at current trending, changes in trading mechanics may speedily evolve to the point that such “reserve currencies” no longer have a function at all. Analysts once speculated that it was only a matter of time before the Chinese yuan displaced the dollar, in the same way that the dollar displaced the pound. The edifice which supports the concept of a “global reserve currency” is weakening. The latter’s demise will have significant implications regarding reducing political influence over global finance, as well as nations’ abilities to run longterm balance of payments deficits, current account deficits and borrow at little or no interest.
Cryptocurrencies as an ecosystem—assuming the current direction of evolution continues—will increasingly constrain, redirect and set the parameters to government macroeconomic policies. Certainly sound alternatives to fiat currencies will drive the latter to the periphery of commercial life, concomitantly reducing the number of tools the nation state has at its disposal to regulate or respond to changing economic conditions. This especially means setting meaningful interest rates. Above all, it means that government financial engagement can no longer be a rule unto itself, it will have to engage by the same principles as everyone else. A level playing field here has dramatic implications—and will again be picked up in a subsequent article.
Cryptocurrencies represent a wider range of disruptive elements affecting the commercial ecosystem. Among the most direct is the ability to raise finance or enter into other commercial transactions with little to no red tape, intrusive regulation or political interference. In short it de-politicises, de-institutionalises and de-centralises investment and payment options, while retaining many of the protective and other beneficial aspects present in traditional finance.
Cryptocurrencies offer rapid commercial advances enfranchising the one- third of the global population who do not have a bank account—but do have a mobile phone—and concomitantly enable business that currently cannot accept electronic forms of payment to move into digital commerce. In the way that cellular communication revolutionised sub-saharan Africa in the early 2000s, so we may anticipate some parallel here as regards ease and ubiquity of payment “wallets” and their positive impact on developing economy dynamics.
Cryptocurrency potential increasingly offers a route to security and liquid asset preservation/growth in a world where fundamentals are being shifted out of all recognition; driven by economic policies predicated firstly on the priority of COVID management and secondly on the move away from rules-based multilateralism towards bilateralism. Global cooperation is yielding to the demands of national integrity, security of supply and highly aggressive competition in key enabling technologies such as 5G, AI, quantum computing and encryption, which themselves will have as profound impact on cryptocurrency evolution as the creation of the bitcoin itself.
Against the backdrop of the essential limits of fiat currencies, current geo- macroeconomic policies and a new emerging world order, cryptocurrencies offer vast potential:
An efficiency facilitating frictionless commerce/investment.
A medium of stability against the backdrop of uncertainty and inflation.
Increased security in value transfer and wealth management.
Optimum autonomy in an increasing intrusive climate.
“Cash” asset preservation/growth in a world of negative interest rates.
In all this we may well have come full circle to 1694 and the stability and security that the establishment of the Bank of England was intended to entrench—but now it is now de-centralised finance that will get us there. Article source: https://www.finxflo.com/news/detail/5127
Binance Support Number (+𝟏) 445*𝟗𝟎0*1𝟒𝟐𝟓 ♚ USA Help Phone
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DeFi is Booming: Level01 Can Repeat The Success of Compound and Maker
The last few years in the crypto and blockchain industries saw a number of trends emerging. While some were bigger than others, most have passed due to different problems, such as the ICO trend, which disappeared due to a huge number of weak projects, scams, and the overall bearish wave that discouraged people from investing. However, deeper in the crypto industry, decentralized finance (DeFi) started emerging, and in years that followed, it became bigger and bigger. Then came 2020, which truly became the year of DeFi — a set of financial tools that are based on decentralized networks and smart contracts. DeFi Sees Exceptional Growth DeFi is still a young sector of the crypto industry, with a total value locked (TVL) still being smaller than several coins, even if we exclude Bitcoin and Ethereum. Still, the DeFi sector saw tremendous growth in the last few months, going up by 440%. For now, the DeFi sector is still tiny when compared to the broad crypto industry. Its market cap sits slightly above $7.2 billion according to DeFi Pulse, which is barely around 2.12% of the total crypto industry. Tether alone has more than that — over $9.9 billion, and so does every other coin that ranks above it. However, DeFi is definitely on the rise, and if the trend continues, it might become one of the biggest markets in the crypto industry very shortly. Compound And Maker: The Stars of DeFi According to DeFi Pulse, Compound and Maker have been the two leaders in the DeFi sector for a long time. Even now, Maker holds the top spot, with total value locked sitting at $1.23 billion. Compound sits in the second spot, with $732.7 million at the time of writing, but even so, it represents Maker's greatest rival. The two are actually often much closer than this, and only a month and a half ago, Compound even managed to take over the #1 spot for a brief period, thanks to COMP liquidity mining launch. The new way of distributing COMP, as well as providing incentives, caused the platform to grow rapidly, and become a new hit. It did not seem to have lasted, however, as Maker once again leads by quite a bit, but it was certainly an interesting strategy to try out. Of course, there are those who believe that Compound will eventually overtake Maker, and that the second-largest project is playing the long game. But, there are also those who think that both of these will be outperformed by another player, maybe someone who is only just approaching now. A New Emerging Player in DeFi As many are aware, 2020 has been marked by the growth of DeFi, but also by greater financial instability caused by the COVID-19 pandemic. Many believe that the real financial issues are only starting, and that caused them to seek out solutions, which may have been the reason why so many people became interested in DeFi in the first place. While older DeFi projects such as Maker and Compound may be in the lead right now, they might not remain there forever. Other platforms and projects may easily surpass them, given enough exposure. Level01, specifically, holds great potential to bring great changes to the financial markets, and even transform it into something new and better. The platform aims to bring decentralized trading to the massive derivatives market currently valued at around $542 billion. The platform utilizes FairSense, a predictive AI that currently has no equal in the derivatives market. Its algorithm helps to assess risk/reward projections by providing real-time, dynamic, and fair price value for all participants within the asset market. By doing this, the platform levels the playing field for retail traders who, for the first time, have a chance to trade like professionals using their FairSense AI algorithm, which estimates the actual market value of the contracts they seek to trade. Now traders on the platform have a chance to profit from price movements of cryptocurrencies, especially during these uncertain times of pandemic induced panic and slumps. The platform has its native token the LVX token currently only on offer on Digifinex through the LVX-USDT pairing. The token has been one of the better performers of the resurgent crypto market, with an ROI of 68.63% since getting listed on coinmarket.com less than a month ago. LVX is currently trading $0.21 with a market cap of $31.7 million, making it one of the fastest-growing crypto coins. Now, Level01 is well on its way of becoming highly popular, and the exploding DeFi sector is a perfect opportunity for it to gain greater exposure and offer an alternative to those who do not yet know about it. After all, such things tend to happen to good quality projects when their market segments start going big. Since DeFi's time seems to have arrived, the top-quality projects like Level01 should be poised for massive growth.
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This will also go for Bitcoin, probably even to a bigger extent..
This is a quote from Egon von Greyerz: "Forget about what price the metals will reach. Even in today’s money, whatever figure you think of will not be enough. And in hyperinflationary money, the price move will be exponential measured in worthless paper money. So don’t think about the value of gold and silver in dollars or euros. Just remember that gold is the only money that has survived in history. It is therefore the best form of wealth preservation and insurance against a bankrupt financial system…" You can find a lot of interesting articles he wrote. He is telling about the value of gold and the instable financial situation for more than a decade. Unfortunately he never talks about Bitcoin and I have never been able to talk about it with him. It's hard to imagine he wouldn't be listening to the Bitcoin proposition if told about it.. I think he's one of the few who is openly talking about the risks of the current financial sysyem without going to the usual conspiracy theories. His company manages the wealth of a lot high wealth individuals. I think he's definitely correct about the future, but for some reason hasn't got Bitcoin on his radar. Probably because he plays the most safe cards. But what he tells about gold will also go for Bitcoin, with the big difference that gold is the absolute safe way to play and Bitcoin being the leveraged way. More leverage means more risks compensated by higher possible gains. HODL... strong..
This article is written by the CoinEx Chain lab. CoinEx Chain is the world’s first public chain exclusively designed for DEX, and will also include a Smart Chain supporting smart contracts and a Privacy Chain protecting users’ privacy. longcpp @ 20200618 This is Part 1 of the serialized articles aimed to explain the Tendermint consensus protocol in detail. Part 1. Preliminary of the consensus protocol: security model and PBFT protocol Part 2. Tendermint consensus protocol illustrated: two-phase voting protocol and the locking and unlocking mechanism Part 3. Weighted round-robin proposer selection algorithm used in Tendermint project Any consensus agreement that is ultimately reached is the General Agreement, that is, the majority opinion. The consensus protocol on which the blockchain system operates is no exception. As a distributed system, the blockchain system aims to maintain the validity of the system. Intuitively, the validity of the blockchain system has two meanings: firstly, there is no ambiguity, and secondly, it can process requests to update its status. The former corresponds to the safety requirements of distributed systems, while the latter to the requirements of liveness. The validity of distributed systems is mainly maintained by consensus protocols, considering the multiple nodes and network communication involved in such systems may be unstable, which has brought huge challenges to the design of consensus protocols.
The semi-synchronous network model and Byzantine fault tolerance
Researchers of distributed systems characterize these problems that may occur in nodes and network communications using node failure models and network models. The fail-stop failure in node failure models refers to the situation where the node itself stops running due to configuration errors or other reasons, thus unable to go on with the consensus protocol. This type of failure will not cause side effects on other parts of the distributed system except that the node itself stops running. However, for such distributed systems as the public blockchain, when designing a consensus protocol, we still need to consider the evildoing intended by nodes besides their failure. These incidents are all included in the Byzantine Failure model, which covers all unexpected situations that may occur on the node, for example, passive downtime failures and any deviation intended by the nodes from the consensus protocol. For a better explanation, downtime failures refer to nodes’ passive running halt, and the Byzantine failure to any arbitrary deviation of nodes from the consensus protocol. Compared with the node failure model which can be roughly divided into the passive and active models, the modeling of network communication is more difficult. The network itself suffers problems of instability and communication delay. Moreover, since all network communication is ultimately completed by the node which may have a downtime failure or a Byzantine failure in itself, it is usually difficult to define whether such failure arises from the node or the network itself when a node does not receive another node's network message. Although the network communication may be affected by many factors, the researchers found that the network model can be classified by the communication delay. For example, the node may fail to send data packages due to the fail-stop failure, and as a result, the corresponding communication delay is unknown and can be any value. According to the concept of communication delay, the network communication model can be divided into the following three categories:
The synchronous network model: There is a fixed, known upper bound of delay $\Delta$ in network communication. Under this model, the maximum delay of network communication between two nodes in the network is $\Delta$. Even if there is a malicious node, the communication delay arising therefrom does not exceed $\Delta$.
The asynchronous network model: There is an unknown delay in network communication, with the upper bound of the delay known, but the message can still be successfully delivered in the end. Under this model, the network communication delay between two nodes in the network can be any possible value, that is, a malicious node, if any, can arbitrarily extend the communication delay.
The semi-synchronous network model: Assume that there is a Global Stabilization Time (GST), before which it is an asynchronous network model and after which, a synchronous network model. In other words, there is a fixed, known upper bound of delay in network communication $\Delta$. A malicious node can delay the GST arbitrarily, and there will be no notification when no GST occurs. Under this model, the delay in the delivery of the message at the time $T$ is $\Delta + max(T, GST)$.
The synchronous network model is the most ideal network environment. Every message sent through the network can be received within a predictable time, but this model cannot reflect the real network communication situation. As in a real network, network failures are inevitable from time to time, causing the failure in the assumption of the synchronous network model. Yet the asynchronous network model goes to the other extreme and cannot reflect the real network situation either. Moreover, according to the FLP (Fischer-Lynch-Paterson) theorem, under this model if there is one node fails, no consensus protocol will reach consensus in a limited time. In contrast, the semi-synchronous network model can better describe the real-world network communication situation: network communication is usually synchronous or may return to normal after a short time. Such an experience must be no stranger to everyone: the web page, which usually gets loaded quite fast, opens slowly every now and then, and you need to try before you know the network is back to normal since there is usually no notification. The peer-to-peer (P2P) network communication, which is widely used in blockchain projects, also makes it possible for a node to send and receive information from multiple network channels. It is unrealistic to keep blocking the network information transmission of a node for a long time. Therefore, all the discussion below is under the semi-synchronous network model. The design and selection of consensus protocols for public chain networks that allow nodes to dynamically join and leave need to consider possible Byzantine failures. Therefore, the consensus protocol of a public chain network is designed to guarantee the security and liveness of the network under the semi-synchronous network model on the premise of possible Byzantine failure. Researchers of distributed systems point out that to ensure the security and liveness of the system, the consensus protocol itself needs to meet three requirements:
Validity: The value reached by honest nodes must be the value proposed by one of them
Agreement: All honest nodes must reach consensus on the same value
Termination: The honest nodes must eventually reach consensus on a certain value
Validity and agreement can guarantee the security of the distributed system, that is, the honest nodes will never reach a consensus on a random value, and once the consensus is reached, all honest nodes agree on this value. Termination guarantees the liveness of distributed systems. A distributed system unable to reach consensus is useless.
The CAP theorem and Byzantine Generals Problem
In a semi-synchronous network, is it possible to design a Byzantine fault-tolerant consensus protocol that satisfies validity, agreement, and termination? How many Byzantine nodes can a system tolerance? The CAP theorem and Byzantine Generals Problem provide an answer for these two questions and have thus become the basic guidelines for the design of Byzantine fault-tolerant consensus protocols. Lamport, Shostak, and Pease abstracted the design of the consensus mechanism in the distributed system in 1982 as the Byzantine Generals Problem, which refers to such a situation as described below: several generals each lead the army to fight in the war, and their troops are stationed in different places. The generals must formulate a unified action plan for the victory. However, since the camps are far away from each other, they can only communicate with each other through the communication soldiers, or, in other words, they cannot appear on the same occasion at the same time to reach a consensus. Unfortunately, among the generals, there is a traitor or two who intend to undermine the unified actions of the loyal generals by sending the wrong information, and the communication soldiers cannot send the message to the destination by themselves. It is assumed that each communication soldier can prove the information he has brought comes from a certain general, just as in the case of a real BFT consensus protocol, each node has its public and private keys to establish an encrypted communication channel for each other to ensure that its messages will not be tampered with in the network communication, and the message receiver can also verify the sender of the message based thereon. As already mentioned, any consensus agreement ultimately reached represents the consensus of the majority. In the process of generals communicating with each other for an offensive or retreat, a general also makes decisions based on the majority opinion from the information collected by himself. According to the research of Lamport et al, if there are 1/3 or more traitors in the node, the generals cannot reach a unified decision. For example, in the following figure, assume there are 3 generals and only 1 traitor. In the figure on the left, suppose that General C is the traitor, and A and B are loyal. If A wants to launch an attack and informs B and C of such intention, yet the traitor C sends a message to B, suggesting what he has received from A is a retreat. In this case, B can't decide as he doesn't know who the traitor is, and the information received is insufficient for him to decide. If A is a traitor, he can send different messages to B and C. Then C faithfully reports to B the information he received. At this moment as B receives conflicting information, he cannot make any decisions. In both cases, even if B had received consistent information, it would be impossible for him to spot the traitor between A and C. Therefore, it is obvious that in both situations shown in the figure below, the honest General B cannot make a choice. According to this conclusion, when there are $n$ generals with at most $f$ traitors (n≤3f), the generals cannot reach a consensus if $n \leq 3f$; and with $n > 3f$, a consensus can be reached. This conclusion also suggests that when the number of Byzantine failures $f$ exceeds 1/3 of the total number of nodes $n$ in the system $f \ge n/3$ , no consensus will be reached on any consensus protocol among all honest nodes. Only when $f < n/3$, such condition is likely to happen, without loss of generality, and for the subsequent discussion on the consensus protocol, $ n \ge 3f + 1$ by default. The conclusion reached by Lamport et al. on the Byzantine Generals Problem draws a line between the possible and the impossible in the design of the Byzantine fault tolerance consensus protocol. Within the possible range, how will the consensus protocol be designed? Can both the security and liveness of distributed systems be fully guaranteed? Brewer provided the answer in his CAP theorem in 2000. It indicated that a distributed system requires the following three basic attributes, but any distributed system can only meet two of the three at the same time.
Consistency: When any node responds to the request, it must either provide the latest status information or provide no status information
Availability: Any node in the system must be able to continue reading and writing
Partition Tolerance: The system can tolerate the loss of any number of messages between two nodes and still function normally
https://preview.redd.it/1ozfwk7u7m851.png?width=1400&format=png&auto=webp&s=fdee6318de2cf1c021e636654766a7a0fe7b38b4 A distributed system aims to provide consistent services. Therefore, the consistency attribute requires that the two nodes in the system cannot provide conflicting status information or expired information, which can ensure the security of the distributed system. The availability attribute is to ensure that the system can continuously update its status and guarantee the availability of distributed systems. The partition tolerance attribute is related to the network communication delay, and, under the semi-synchronous network model, it can be the status before GST when the network is in an asynchronous status with an unknown delay in the network communication. In this condition, communicating nodes may not receive information from each other, and the network is thus considered to be in a partitioned status. Partition tolerance requires the distributed system to function normally even in network partitions. The proof of the CAP theorem can be demonstrated with the following diagram. The curve represents the network partition, and each network has four nodes, distinguished by the numbers 1, 2, 3, and 4. The distributed system stores color information, and all the status information stored by all nodes is blue at first.
Partition tolerance and availability mean the loss of consistency: When node 1 receives a new request in the leftmost image, the status changes to red, the status transition information of node 1 is passed to node 3, and node 3 also updates the status information to red. However, since node 3 and node 4 did not receive the corresponding information due to the network partition, the status information is still blue. At this moment, if the status information is queried through node 2, the blue returned by node 2 is not the latest status of the system, thus losing consistency.
Partition tolerance and consistency mean the loss of availability: In the middle figure, the initial status information of all nodes is blue. When node 1 and node 3 update the status information to red, node 2 and node 4 maintain the outdated information as blue due to network partition. Also when querying status information through node 2, you need to first ask other nodes to make sure you’re in the latest status before returning status information as node 2 needs to follow consistency, but because of the network partition, node 2 cannot receive any information from node 1 or node 3. Then node 2 cannot determine whether it is in the latest status, so it chooses not to return any information, thus depriving the system of availability.
Consistency and availability mean the loss of the partition tolerance: In the right-most figure, the system does not have a network partition at first, and both status updates and queries can go smoothly. However, once a network partition occurs, it degenerates into one of the previous two conditions. It is thus proved that any distributed system cannot have consistency, availability, and partition tolerance all at the same time.
https://preview.redd.it/456x2blv7m851.png?width=1400&format=png&auto=webp&s=550797373145b8fc1471bdde68ed5f8d45adb52b The discovery of the CAP theorem seems to declare that the aforementioned goals of the consensus protocol is impossible. However, if you’re careful enough, you may find from the above that those are all extreme cases, such as network partitions that cause the failure of information transmission, which could be rare, especially in P2P network. In the second case, the system rarely returns the same information with node 2, and the general practice is to query other nodes and return the latest status as believed after a while, regardless of whether it has received the request information of other nodes. Therefore, although the CAP theorem points out that any distributed system cannot satisfy the three attributes at the same time, it is not a binary choice, as the designer of the consensus protocol can weigh up all the three attributes according to the needs of the distributed system. However, as the communication delay is always involved in the distributed system, one always needs to choose between availability and consistency while ensuring a certain degree of partition tolerance. Specifically, in the second case, it is about the value that node 2 returns: a probably outdated value or no value. Returning the possibly outdated value may violate consistency but guarantees availability; yet returning no value deprives the system of availability but guarantees its consistency. Tendermint consensus protocol to be introduced is consistent in this trade-off. In other words, it will lose availability in some cases. The genius of Satoshi Nakamoto is that with constraints of the CAP theorem, he managed to reach a reliable Byzantine consensus in a distributed network by combining PoW mechanism, Satoshi Nakamoto consensus, and economic incentives with appropriate parameter configuration. Whether Bitcoin's mechanism design solves the Byzantine Generals Problem has remained a dispute among academicians. Garay, Kiayias, and Leonardos analyzed the link between Bitcoin mechanism design and the Byzantine consensus in detail in their paper The Bitcoin Backbone Protocol: Analysis and Applications. In simple terms, the Satoshi Consensus is a probabilistic Byzantine fault-tolerant consensus protocol that depends on such conditions as the network communication environment and the proportion of malicious nodes' hashrate. When the proportion of malicious nodes’ hashrate does not exceed 1/2 in a good network communication environment, the Satoshi Consensus can reliably solve the Byzantine consensus problem in a distributed environment. However, when the environment turns bad, even with the proportion within 1/2, the Satoshi Consensus may still fail to reach a reliable conclusion on the Byzantine consensus problem. It is worth noting that the quality of the network environment is relative to Bitcoin's block interval. The 10-minute block generation interval of the Bitcoin can ensure that the system is in a good network communication environment in most cases, given the fact that the broadcast time of a block in the distributed network is usually just several seconds. In addition, economic incentives can motivate most nodes to actively comply with the agreement. It is thus considered that with the current Bitcoin network parameter configuration and mechanism design, the Bitcoin mechanism design has reliably solved the Byzantine Consensus problem in the current network environment.
Practical Byzantine Fault Tolerance, PBFT
It is not an easy task to design the Byzantine fault-tolerant consensus protocol in a semi-synchronous network. The first practically usable Byzantine fault-tolerant consensus protocol is the Practical Byzantine Fault Tolerance (PBFT) designed by Castro and Liskov in 1999, the first of its kind with polynomial complexity. For a distributed system with $n$ nodes, the communication complexity is $O(n2$.) Castro and Liskov showed in the paper that by transforming centralized file system into a distributed one using the PBFT protocol, the overwall performance was only slowed down by 3%. In this section we will briefly introduce the PBFT protocol, paving the way for further detailed explanations of the Tendermint protocol and the improvements of the Tendermint protocol. The PBFT protocol that includes $n=3f+1$ nodes can tolerate up to $f$ Byzantine nodes. In the original paper of PBFT, full connection is required among all the $n$ nodes, that is, any two of the n nodes must be connected. All the nodes of the network jointly maintain the system status through network communication. In the Bitcoin network, a node can participate in or exit the consensus process through hashrate mining at any time, which is managed by the administrator, and the PFBT protocol needs to determine all the participating nodes before the protocol starts. All nodes in the PBFT protocol are divided into two categories, master nodes, and slave nodes. There is only one master node at any time, and all nodes take turns to be the master node. All nodes run in a rotation process called View, in each of which the master node will be reelected. The master node selection algorithm in PBFT is very simple: all nodes become the master node in turn by the index number. In each view, all nodes try to reach a consensus on the system status. It is worth mentioning that in the PBFT protocol, each node has its own digital signature key pair. All sent messages (including request messages from the client) need to be signed to ensure the integrity of the message in the network and the traceability of the message itself. (You can determine who sent a message based on the digital signature). The following figure shows the basic flow of the PBFT consensus protocol. Assume that the current view’s master node is node 0. Client C initiates a request to the master node 0. After the master node receives the request, it broadcasts the request to all slave nodes that process the request of client C and return the result to the client. After the client receives f+1 identical results from different nodes (based on the signature value), the result can be taken as the final result of the entire operation. Since the system can have at most f Byzantine nodes, at least one of the f+1 results received by the client comes from an honest node, and the security of the consensus protocol guarantees that all honest nodes will reach consensus on the same status. So, the feedback from 1 honest node is enough to confirm that the corresponding request has been processed by the system. https://preview.redd.it/sz8so5ly7m851.png?width=1400&format=png&auto=webp&s=d472810e76bbc202e91a25ef29a51e109a576554 For the status synchronization of all honest nodes, the PBFT protocol has two constraints on each node: on one hand, all nodes must start from the same status, and on the other, the status transition of all nodes must be definite, that is, given the same status and request, the results after the operation must be the same. Under these two constraints, as long as the entire system agrees on the processing order of all transactions, the status of all honest nodes will be consistent. This is also the main purpose of the PBFT protocol: to reach a consensus on the order of transactions between all nodes, thereby ensuring the security of the entire distributed system. In terms of availability, the PBFT consensus protocol relies on a timeout mechanism to find anomalies in the consensus process and start the View Change protocol in time to try to reach a consensus again. The figure above shows a simplified workflow of the PBFT protocol. Where C is the client, 0, 1, 2, and 3 represent 4 nodes respectively. Specifically, 0 is the master node of the current view, 1, 2, 3 are slave nodes, and node 3 is faulty. Under normal circumstances, the PBFT consensus protocol reaches consensus on the order of transactions between nodes through a three-phase protocol. These three phases are respectively: Pre-Prepare, Prepare, and Commit:
The master node of the pre-preparation node is responsible for assigning the sequence number to the received client request, and broadcasting the message to the slave node. The message contains the hash value of the client request d, the sequence number of the current viewv, the sequence number n assigned by the master node to the request, and the signature information of the master nodesig. The scheme design of the PBFT protocol separates the request transmission from the request sequencing process, and the request transmission is not to be discussed here. The slave node that receives the message accepts the message after confirming the message is legitimate and enter preparation phase. The message in this step checks the basic signature, hash value, current view, and, most importantly, whether the master node has given the same sequence number to other request from the client in the current view.
In preparation, the slave node broadcasts the message to all nodes (including itself), indicating that it assigns the sequence number n to the client request with the hash value d under the current view v, with its signaturesig as proof. The node receiving the message will check the correctness of the signature, the matching of the view sequence number, etc., and accept the legitimate message. When the PRE-PREPARE message about a client request (from the main node) received by a node matches with the PREPARE from 2f slave nodes, the system has agreed on the sequence number requested by the client in the current view. This means that 2f+1 nodes in the current view agree with the request sequence number. Since it contains information from at most fmalicious nodes, there are a total of f+1 honest nodes that have agreed with the allocation of the request sequence number. With f malicious nodes, there are a total of 2f+1 honest nodes, so f+1represents the majority of the honest nodes, which is the consensus of the majority mentioned before.
After the node (including the master node and the slave node) receives a PRE-PREPARE message requested by the client and 2f PREPARE messages, the message is broadcast across the network and enters the submission phase. This message is used to indicate that the node has observed that the whole network has reached a consensus on the sequence number allocation of the request message from the client. When the node receives 2f+1 COMMIT messages, there are at least f+1 honest nodes, that is, most of the honest nodes have observed that the entire network has reached consensus on the arrangement of sequence numbers of the request message from the client. The node can process the client request and return the execution result to the client at this moment.
Roughly speaking, in the pre-preparation phase, the master node assigns a sequence number to all new client requests. During preparation, all nodes reach consensus on the client request sequence number in this view, while in submission the consistency of the request sequence number of the client in different views is to be guaranteed. In addition, the design of the PBFT protocol itself does not require the request message to be submitted by the assigned sequence number, but out of order. That can improve the efficiency of the implementation of the consensus protocol. Yet, the messages are still processed by the sequence number assigned by the consensus protocol for the consistency of the distributed system. In the three-phase protocol execution of the PBFT protocol, in addition to maintaining the status information of the distributed system, the node itself also needs to log all kinds of consensus information it receives. The gradual accumulation of logs will consume considerable system resources. Therefore, the PBFT protocol additionally defines checkpoints to help the node deal with garbage collection. You can set a checkpoint every 100 or 1000 sequence numbers according to the request sequence number. After the client request at the checkpoint is executed, the node broadcasts messages throughout the network, indicating that after the node executes the client request with sequence number n, the hash value of the system status is d, and it is vouched by its own signature sig. After 2f+1 matching CHECKPOINT messages (one of which can come from the node itself) are received, most of the honest nodes in the entire network have reached a consensus on the system status after the execution of the client request with the sequence numbern, and then you can clear all relevant log records of client requests with the sequence number less than n. The node needs to save these2f+1 CHECKPOINTmessages as proof of the legitimate status at this moment, and the corresponding checkpoint is called a stable checkpoint. The three-phase protocol of the PBFT protocol can ensure the consistency of the processing order of the client request, and the checkpoint mechanism is set to help nodes perform garbage collection and further ensures the status consistency of the distributed system, both of which can guarantee the security of the distributed system aforementioned. How is the availability of the distributed system guaranteed? In the semi-synchronous network model, a timeout mechanism is usually introduced, which is related to delays in the network environment. It is assumed that the network delay has a known upper bound after GST. In such condition, an initial value is usually set according to the network condition of the system deployed. In case of a timeout event, besides the corresponding processing flow triggered, additional mechanisms will be activated to readjust the waiting time. For example, an algorithm like TCP's exponential back off can be adopted to adjust the waiting time after a timeout event. To ensure the availability of the system in the PBFT protocol, a timeout mechanism is also introduced. In addition, due to the potential the Byzantine failure in the master node itself, the PBFT protocol also needs to ensure the security and availability of the system in this case. When the Byzantine failure occurs in the master node, for example, when the slave node does not receive the PRE-PREPARE message or the PRE-PREPARE message sent by the master node from the master node within the time window and is thus determined to be illegitimate, the slave node can broadcast to the entire network, indicating that the node requests to switch to the new view with sequence number v+1. n indicates the request sequence number corresponding to the latest stable checkpoint local to the node, and C is to prove the stable checkpoint 2f+1 legitimate CHECKPOINT messages as aforementioned. After the latest stable checkpoint and before initiating the VIEWCHANGE message, the system may have reached a consensus on the sequence numbers of some request messages in the previous view. To ensure the consistency of these request sequence numbers to be switched in the view, the VIEWCHANGE message needs to carry this kind of the information to the new view, which is also the meaning of the P field in the message. P contains all the client request messages collected at the node with a request sequence number greater than n and the proof that a consensus has been reached on the sequence number in the node: the legitimate PRE-PREPARE message of the request and 2f matching PREPARE messages. When the master node in view v+1 collects 2f+1 VIEWCHANGE messages, it can broadcast the NEW-VIEW message and take the entire system into a new view. For the security of the system in combination with the three-phase protocol of the PBFT protocol, the construction rules of the NEW-VIEW information are designed in a quite complicated way. You can refer to the original paper of PBFT for more details. https://preview.redd.it/x5efdc908m851.png?width=1400&format=png&auto=webp&s=97b4fd879d0ec668ee0990ea4cadf476167a2948 VIEWCHANGE contains a lot of information. For example, C contains 2f+1 signature information, P contains several signature sets, and each set has 2f+1 signature. At least 2f+1 nodes need to send a VIEWCHANGE message before prompting the system to enter the next new view, and that means, in addition to the complex logic of constructing the information of VIEWCHANGE and NEW-VIEW, the communication complexity of the view conversion protocol is $O(n2$.) Such complexity also limits the PBFT protocol to support only a few nodes, and when there are 100 nodes, it is usually too complex to practically deploy PBFT. It is worth noting that in some materials the communication complexity of the PBFT protocol is inappropriately attributed to the full connection between n nodes. By changing the fully connected network topology to the P2P network topology based on distributed hash tables commonly used in blockchain projects, high communication complexity caused by full connection can be conveniently solved, yet still, it is difficult to improve the communication complexity during the view conversion process. In recent years, researchers have proposed to reduce the amount of communication in this step by adopting aggregate signature scheme. With this technology, 2f+1 signature information can be compressed into one, thereby reducing the communication volume during view change.
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https://www.youtube.com/watch?v=TYyTeijxUXI Without going over too much, here is why Bitcoin is a Store of Value like Gold. If you don’t want to watch the video I have left the main points here. Let me know what you think and have a great day!
Bitcoin is Programmed to be like Digital gold
Bitcoin is programmed as a Store of Value. In terms of digital assets, each digital asset is tailored for a specific purpose. Bitcoin has poorer performance stats compared to other digital assets like XRP or XLM because it is designed for security and scarcity in mind. The digital asset uses proof of work and has an ability to slowly grow in price over time. Bitcoin runs on a decentralized network in which the larger the network gets, the safer it is. The digital asset is also harder to mine over time. Every 4-year, Bitcoin’s new supply will be cut, and if demand remains the same, then the price will increase. You can use Bitcoin as a medium of exchange, to exchange one currency into another, like XRP, but it will not be as efficient. I am not saying that you can’t do this, but I am saying that it just makes more logical sense to use Bitcoin as a store of value and XRP as a medium of exchange.
New Store of Values are Naturally Volatile
The historical data of Gold shows that gold is also volatile. When Richard Nixon took the U.S. off of the gold standard in 1971, it set gold loose. In 1974, for instance, gold bullion prices rose 73%, before falling 24% in 1975. In 1981, gold lost 33% of its value, after being up 121% just two years prior. Thus, volatility is normal for a new store of value. In fact, new Stores of Value have these 2 characteristics: Early Exponential Growth The price of a new store of value, like Bitcoin, would start out low, since few people would believe in it. As a new store of values became established, prices would rise exponentially until a steady state. Decreasing Volatility Early volatility would be extreme, as its long-term sustainability is questioned by investors. However, over time, that volatility would tail off as the asset became more established in the mind of investors. 3. Bitcoin is a Technology with Inherent Value The definition of Inherent means: “The inherent qualities of something are the necessary and natural parts of it.” People often say that Bitcoin since Bitcoin is not backed by the U.S government it has no value. But the value of Bitcoin is the technology itself. The digital asset runs on a decentralized network without any middlemen. Bitcoin acts as another option to a traditional banking system. In the U.S, we might think this is anachronist but imagine being in a country with hyperinflation or political instability. This is when we get to see the true value of Bitcoin. In countries with hyperinflation, your money is losing value. No one saves. In Zimbabwe, in 2007 and 2008, a load of bread costs what 12 cars did a decade ago. The inflation was 489 percent. Bitcoin a hedge against this risk. People in these countries can purchase Bitcoin to protect their purchasing power. Website https://www.financialbread.com/ Facebook https://www.facebook.com/groups/simplestocks #Bitcoin #BTC #DigitalAsset #Cypto
Your Guide to Monero, and Why It Has Great Potential
/////Your Guide to Monero, and Why It Has Great Potential/////
Marketing. It's a dirty word for most members of the Monero community. It is also one of the most divisive words in the Monero community. Yet, the lack of marketing is one of the most frustrating things for many newcomers. This is what makes this an unusual post from a member of the Monero community. This post is an unabashed and unsolicited analyzation of why I believe Monero to have great potential. Below I have attempted to outline different reasons why Monero has great potential, beginning with upcoming developments and use cases, to broader economic motives, speculation, and key issues for it to overcome. I encourage you to discuss and criticise my musings, commenting below if you feel necessary to do so.
Bulletproofs - A Reduction in Transaction Sizes and Fees Since the introduction of Ring Confidential Transactions (Ring CT), transaction amounts have been hidden in Monero, albeit at the cost of increased transaction fees and sizes. In order to mitigate this issue, Bulletproofs will soon be added to reduce both fees and transaction size by 80% to 90%. This is great news for those transacting smaller USD amounts as people commonly complained Monero's fees were too high! Not any longer though! More information can be found here. Bulletproofs are already working on the Monero testnet, and developers were aiming to introduce them in March 2018, however it could be delayed in order to ensure everything is tried and tested. Multisig Multisig has recently been merged! Mulitsig, also called multisignature, is the requirement for a transaction to have two or more signatures before it can be executed. Multisig transactions and addresses are indistinguishable from normal transactions and addresses in Monero, and provide more security than single-signature transactions. It is believed this will lead to additional marketplaces and exchanges to supporting Monero. Kovri Kovri is an implementation of the Invisible Internet Project (I2P) network. Kovri uses both garlic encryption and garlic routing to create a private, protected overlay-network across the internet. This overlay-network provides users with the ability to effectively hide their geographical location and internet IP address. The good news is Kovri is under heavy development and will be available soon. Unlike other coins' false privacy claims, Kovri is a game changer as it will further elevate Monero as the king of privacy. Mobile Wallets There is already a working Android Wallet called Monerujo available in the Google Play Store. X Wallet is an IOS mobile wallet. One of the X Wallet developers recently announced they are very, very close to being listed in the Apple App Store, however are having some issues with getting it approved. The official Monero IOS and Android wallets, along with the MyMonero IOS and Android wallets, are also almost ready to be released, and can be expected very soon. Hardware Wallets Hardware wallets are currently being developed and nearing completion. Because Monero is based on the CryptoNote protocol, it means it requires unique development in order to allow hardware wallet integration. The Ledger Nano S will be adding Monero support by the end of Q1 2018. There is a recent update here too. Even better, for the first time ever in cryptocurrency history, the Monero community banded together to fund the development of an exclusive Monero Hardware Wallet, and will be available in Q2 2018, costing only about $20! In addition, the CEO of Trezor has offered a 10BTC bounty to whoever can provide the software to allow Monero integration. Someone can be seen to already be working on that here. TAILS Operating System Integration Monero is in the progress of being packaged in order for it to be integrated into TAILS and ready to use upon install. TAILS is the operating system popularised by Edward Snowden and is commonly used by those requiring privacy such as journalists wanting to protect themselves and sources, human-right defenders organizing in repressive contexts, citizens facing national emergencies, domestic violence survivors escaping from their abusers, and consequently, darknet market users. In the meantime, for those users who wish to use TAILS with Monero, u/Electric_sheep01 has provided Sheep's Noob guide to Monero GUI in Tails 3.2, which is a step-by-step guide with screenshots explaining how to setup Monero in TAILS, and is very easy to follow. Mandatory Hardforks Unlike other coins, Monero receives a protocol upgrade every 6 months in March and September. Think of it as a Consensus Protocol Update. Monero's hard forks ensure quality development takes place, while preventing political or ideological issues from hindering progress. When a hardfork occurs, you simply download and use the new daemon version, and your existing wallet files and copy of the blockchain remain compatible. This reddit post provides more information. Dynamic fees Many cryptocurrencies have an arbitrary block size limit. Although Monero has a limit, it is adaptive based on the past 100 blocks. Similarly, fees change based on transaction volume. As more transactions are processed on the Monero network, the block size limit slowly increases and the fees slowly decrease. The opposite effect also holds true. This means that the more transactions that take place, the cheaper the fees! Tail Emission and Inflation There will be around 18.4 million Monero mined at the end of May 2022. However, tail emission will kick in after that which is 0.6 XMR, so it has no fixed limit. Gundamlancer explains that Monero's "main emission curve will issue about 18.4 million coins to be mined in approximately 8 years. (more precisely 18.132 Million coins by ca. end of May 2022) After that, a constant "tail emission" of 0.6 XMR per 2-minutes block (modified from initially equivalent 0.3 XMR per 1-minute block) will create a sub-1% perpetual inflatio starting with 0.87% yearly inflation around May 2022) to prevent the lack of incentives for miners once a currency is not mineable anymore. Monero Research Lab Monero has a group of anonymous/pseudo-anonymous university academics actively researching, developing, and publishing academic papers in order to improve Monero. See here and here. The Monero Research Lab are acquainted with other members of cryptocurrency academic community to ensure when new research or technology is uncovered, it can be reviewed and decided upon whether it would be beneficial to Monero. This ensures Monero will always remain a leading cryptocurrency. A recent end of 2017 update from a MRL researcher can be found here.
///Monero's Technology - Rising Above The Rest///
Monero Has Already Proven Itself To Be Private, Secure, Untraceable, and Trustless Monero is the only private, untraceable, trustless, secure and fungible cryptocurrency. Bitcoin and other cryptocurrencies are TRACEABLE through the use of blockchain analytics, and has lead to the prosecution of numerous individuals, such as the alleged Alphabay administrator Alexandre Cazes. In the Forfeiture Complaint which detailed the asset seizure of Alexandre Cazes, the anonymity capabilities of Monero were self-demonstrated by the following statement of the officials after the AlphaBay shutdown: "In total, from CAZES' wallets and computer agents took control of approximately $8,800,000 in Bitcoin, Ethereum, Monero and Zcash, broken down as follows: 1,605.0503851 Bitcoin, 8,309.271639 Ethereum, 3,691.98 Zcash, and an unknown amount of Monero". Privacy CANNOT BE OPTIONAL and must be at a PROTOCOL LEVEL. With Monero, privacy is mandatory, so that everyone gets the benefits of privacy without any transactions standing out as suspicious. This is the reason Darknet Market places are moving to Monero, and will never use Verge, Zcash, Dash, Pivx, Sumo, Spectre, Hush or any other coins that lack good privacy. Peter Todd (who was involved in the Zcash trusted setup ceremony) recently reiterated his concerns of optional privacy after Jeffrey Quesnelle published his recent paper stating 31.5% of Zcash transactions may be traceable, and that only ~1% of the transactions are pure privacy transactions (i.e., z -> z transactions). When the attempted private transactions stand out like a sore thumb there is no privacy, hence why privacy cannot be optional. In addition, in order for a cryptocurrency to truly be private, it must not be controlled by a centralised body, such as a company or organisation, because it opens it up to government control and restrictions. This is no joke, but Zcash is supported by DARPA and the Israeli government!. Monero provides a stark contrast compared to other supposed privacy coins, in that Monero does not have a rich list! With all other coins, you can view wallet balances on the blockexplorers. You can view Monero's non-existent rich list here to see for yourself. I will reiterate here that Monero is TRUSTLESS. You don't need to rely on anyone else to protect your privacy, or worry about others colluding to learn more about you. No one can censor your transaction or decide to intervene. Monero is immutable, unlike Zcash, in which the lead developer Zooko publicly tweeted the possibility of providing a backdoor for authorities to trace transactions. To Zcash's demise, Zooko famously tweeted:
" And by the way, I think we can successfully make Zcash too traceable for criminals like WannaCry, but still completely private & fungible. …"
Ethereum's track record of immutability is also poor. Ethereum was supposed to be an immutable blockchain ledger, however after the DAO hack this proved to not be the case. A 2016 article on Saintly Law summarised the problematic nature of Ethereum's leadership and blockchain intervention:
" Many ethereum and blockchain advocates believe that the intervention was the wrong move to make in this situation. Smart contracts are meant to be self-executing, immutable and free from disturbance by organisations and intermediaries. Yet the building block of all smart contracts, the code, is inherently imperfect. This means that the technology is vulnerable to the same malicious hackers that are targeting businesses and governments. It is also clear that the large scale intervention after the DAO hack could not and would not likely be taken in smaller transactions, as they greatly undermine the viability of the cryptocurrency and the technology."
Monero provides Fungibility and Privacy in a Cashless World As outlined on GetMonero.org, fungibility is the property of a currency whereby two units can be substituted in place of one another. Fungibility means that two units of a currency can be mutually substituted and the substituted currency is equal to another unit of the same size. For example, two $10 bills can be exchanged and they are functionally identical to any other $10 bill in circulation (although $10 bills have unique ID numbers and are therefore not completely fungible). Gold is probably a closer example of true fungibility, where any 1 oz. of gold of the same grade is worth the same as another 1 oz. of gold. Monero is fungible due to the nature of the currency which provides no way to link transactions together nor trace the history of any particular XMR. 1 XMR is functionally identical to any other 1 XMR. Fungibility is an advantage Monero has over Bitcoin and almost every other cryptocurrency, due to the privacy inherent in the Monero blockchain and the permanently traceable nature of the Bitcoin blockchain. With Bitcoin, any BTC can be tracked by anyone back to its creation coinbase transaction. Therefore, if a coin has been used for an illegal purpose in the past, this history will be contained in the blockchain in perpetuity. A great example of Bitcoin's lack of fungibility was reposted by u/ViolentlyPeaceful:
"Imagine you sell cupcakes and receive Bitcoin as payment. It turns out that someone who owned that Bitcoin before you was involved in criminal activity. Now you are worried that you have become a suspect in a criminal case, because the movement of funds to you is a matter of public record. You are also worried that certain Bitcoins that you thought you owned will be considered ‘tainted’ and that others will refuse to accept them as payment."
This lack of fungibility means that certain businesses will be obligated to avoid accepting BTC that have been previously used for purposes which are illegal, or simply run afoul of their Terms of Service. Currently some large Bitcoin companies are blocking, suspending, or closing accounts that have received Bitcoin used in online gambling or other purposes deemed unsavory by said companies. Monero has been built specifically to address the problem of traceability and non-fungibility inherent in other cryptocurrencies. By having completely private transactions Monero is truly fungible and there can be no blacklisting of certain XMR, while at the same time providing all the benefits of a secure, decentralized, permanent blockchain. The world is moving cashless. Fact. The ramifications of this are enormous as we move into a cashless world in which transactions will be tracked and there is a potential for data to be used by third parties for adverse purposes. While most new cryptocurrency investors speculate upon vaporware ICO tokens in the hope of generating wealth, Monero provides salvation for those in which financial privacy is paramount. Too often people equate Monero's features with criminal endeavors. Privacy is not a crime, and is necessary for good money. Transparency in Monero is possible OFF-CHAIN, which offers greater transparency and flexibility. For example, a Monero user may share their Private View Key with their accountant for tax purposes. Monero aims to be adopted by more than just those with nefarious use cases. For example, if you lived in an oppressive religious regime and wanted to buy a certain item, using Monero would allow you to exchange value privately and across borders if needed. Another example is that if everybody can see how much cryptocurrency you have in your wallet, then a certain service might decide to charge you more, and bad actors could even use knowledge of your wallet balance to target you for extortion purposes. For example, a Russian cryptocurrency blogger was recently beaten and robbed of $425k. This is why FUNGIBILITY IS ESSENTIAL. To summarise this in a nutshell:
"A lack of fungibility means that when sending or receiving funds, if the other person personally knows you during a transaction, or can get any sort of information on you, or if you provide a residential address for shipping etc. – you could quite potentially have them use this against you for personal gain"
Major Investors And Crypto Figureheads Are Interested Ari Paul is the co-founder and CIO of BlockTower Capital. He was previously a portfolio manager for the University of Chicago's $8 billion endowment, and a derivatives market maker and proprietary trader for Susquehanna International Group. Paul was interviewed on CNBC on the 26th of December and when asked what was his favourite coin was, he stated "One that has real fundamental value besides from Bitcoin is Monero" and said it has "very strong engineering". In addition, when he was asked if that was the one used by criminals, he replied "Everything is used by criminals including the US dollar and the Euro". Paul later supported these claims on Twitter, recommending only Bitcoin and Monero as long-term investments. There are reports that "Roger Ver, earlier known as 'Bitcoin Jesus' for his evangelical support of the Bitcoin during its early years, said his investment in Monero is 'substantial' and his biggest in any virtual currency since Bitcoin. Charlie Lee, the creator of Litecoin, has publicly stated his appreciation of Monero. In a September 2017 tweet directed to Edward Snowden explaining why Monero is superior to Zcash, Charlie Lee tweeted:
All private transactions, More tested privacy tech, No tax on miners to pay investors, No high inflation... better investment.
John McAfee, arguably cryptocurrency's most controversial character at the moment, has publicly supported Monero numerous times over the last twelve months(before he started shilling ICOs), and has even claimed it will overtake Bitcoin. Playboy instagram celebrity Dan Bilzerian is a Monero investor, with 15% of his portfolio made up of Monero. Finally, while he may not be considered a major investor or figurehead, Erik Finman, a young early Bitcoin investor and multimillionaire, recently appeared in a CNBC Crypto video interview, explaining why he isn't entirely sold on Bitcoin anymore, and expresses his interest in Monero, stating:
"Monero is a really good one. Monero is an incredible currency, it's completely private."
There is a common belief that most of the money in cryptocurrency is still chasing the quick pump and dumps, however as the market matures, more money will flow into legitimate projects such as Monero. Monero's organic growth in price is evidence smart money is aware of Monero and gradually filtering in. The Bitcoin Flaw A relatively unknown blogger named CryptoIzzy posted three poignant pieces regarding Monero and its place in the world. The Bitcoin Flaw: Monero Rising provides an intellectual comparison of Monero to other cryptocurrencies, and Valuing Cryptocurrencies: An Approach outlines methods of valuing different coins. CryptoIzzy's most recent blog published only yesterday titled Monero Valuation - Update and Refocus is a highly recommended read. It touches on why Monero is much more than just a coin for the Darknet Markets, and provides a calculated future price of Monero. CryptoIzzy also published The Power of Money: A Case for Bitcoin, which is an exploration of our monetary system, and the impact decentralised cryptocurrencies such as Bitcoin and Monero will have on the world. In the epilogue the author also provides a positive and detailed future valuation based on empirical evidence. CryptoIzzy predicts Monero to easily progress well into the four figure range. Monero Has a Relatively Small Marketcap Recently we have witnessed many newcomers to cryptocurrency neglecting to take into account coins' marketcap and circulating supply, blindly throwing money at coins under $5 with inflated marketcaps and large circulating supplies, and then believing it's possible for them to reach $100 because someone posted about it on Facebook or Reddit. Compared to other cryptocurrencies, Monero still has a low marketcap, which means there is great potential for the price to multiply. At the time of writing, according to CoinMarketCap, Monero's marketcap is only a little over $5 billion, with a circulating supply of 15.6 million Monero, at a price of $322 per coin. For this reason, I would argue that this is evidence Monero is grossly undervalued. Just a few billion dollars of new money invested in Monero can cause significant price increases. Monero's marketcap only needs to increase to ~$16 billion and the price will triple to over $1000. If Monero's marketcap simply reached ~$35 billion (just over half of Ripple's $55 billion marketcap), Monero's price will increase 600% to over $2000 per coin. Another way of looking at this is Monero's marketcap only requires ~$30 billion of new investor money to see the price per Monero reach $2000, while for Ethereum to reach $2000, Ethereum's marketcap requires a whopping ~$100 billion of new investor money. Technical Analysis There are numerous Monero technical analysts, however none more eerily on point than the crowd-pleasing Ero23. Ero23's charts and analysis can be found on Trading View. Ero23 gained notoriety for his long-term Bitcoin bull chart published in February, which is still in play today. Head over to his Trading View page to see his chart: Monero's dwindling supply. $10k in 2019 scenario, in which Ero23 predicts Monero to reach $10,000 in 2019. There is also this chart which appears to be freakishly accurate and is tracking along perfectly today. Coinbase Rumours Over the past 12 months there have been ongoing rumours that Monero will be one of the next cryptocurrencies to be added to Coinbase. In January 2017, Monero Core team member Riccardo 'Fluffypony' Spagni presented a talk at Coinbase HQ. In addition, in November 2017 GDAX announced the GDAX Digit Asset Framework outlining specific parameters cryptocurrencies must meet in order to be added to the exchange. There is speculation that when Monero has numerous mobile and hardware wallets available, and multisig is working, then it will be added. This would enable public accessibility to Monero to increase dramatically as Coinbase had in excess of 13 million users as of December, and is only going to grow as demand for cryptocurrencies increases. Many users argue that due to KYC/AML regulations, Coinbase will never be able to add Monero, however the Kraken exchange already operates in the US and has XMfiat pairs, so this is unlikely to be the reason Coinbase is yet to implement XMfiat trading. Monero Is Not an ICO Scam It is likely most of the ICOs which newcomers invest in, hoping to get rich quick, won't even be in the Top 100 cryptocurrencies next year. A large portion are most likely to be pumps and dumps, and we have already seen numerous instances of ICO exit scams. Once an ICO raises millions of dollars, the developers or CEO of the company have little incentive to bother rolling out their product or service when they can just cash out and leave. The majority of people who create a company to provide a service or product, do so in order to generate wealth. Unless these developers and CEOs are committed and believed in their product or service, it's likely that the funds raised during the ICO will far exceed any revenue generated from real world use cases. Monero is a Working Currency, Today Monero is a working currency, here today. The majority of so called cryptocurrencies that exist today are not true currencies, and do not aim to be. They are a token of exchange. They are like a share in a start-up company hoping to use blockchain technology to succeed in business. A crypto-assest is a more accurate name for coins such as Ethereum, Neo, Cardano, Vechain, etc. Monero isn't just a vaporware ICO token that promises to provide a blockchain service in the future. It is not a platform for apps. It is not a pump and dump coin. Monero is the only coin with all the necessary properties to be called true money. Monero is private internet money. Some even describe Monero as an online Swiss Bank Account or Bitcoin 2.0, and it is here to continue on from Bitcoin's legacy. Monero is alleviating the public from the grips of banks, and protests the monetary system forced upon us. Monero only achieved this because it is the heart and soul, and blood, sweat, and tears of the contributors to this project. Monero supporters are passionate, and Monero has gotten to where it is today thanks to its contributors and users.
///Key Issues for Monero to Overcome///
Scalability While Bulletproofs are soon to be implemented in order to improve Monero's transaction sizes and fees, scalability is an issue for Monero that is continuously being assessed by Monero's researchers and developers to find the most appropriate solution. Ricardo 'Fluffypony' Spagni recently appeared on CNBC's Crypto Trader, and when asked whether Monero is scalable as it stands today, Spagni stated that presently, Monero's on-chain scaling is horrible and transactions are larger than Bitcoin's (because of Monero's privacy features), so side-chain scaling may be more efficient. Spagni elaborated that the Monero team is, and will always be, looking for solutions to an array of different on-chain and off-chain scaling options, such as developing a Mimblewimble side-chain, exploring the possibility of Lightning Network so atomic swaps can be performed, and Tumblebit. In a post on the Monero subreddit from roughly a month ago, monero moderator u/dEBRUYNE_1 supports Spagni's statements. dEBRUYNE_1 clarifies the issue of scalability:
"In Bitcoin, the main chain is constrained and fees are ludicrous. This results in users being pushed to second layer stuff (e.g. sidechains, lightning network). Users do not have optionality in Bitcoin. In Monero, the goal is to make the main-chain accessible to everyone by keeping fees reasonable. We want users to have optionality, i.e., let them choose whether they'd like to use the main chain or second layer stuff. We don't want to take that optionality away from them."
"Monero has all the mechanisms it needs to find the balance between transaction load, and offsetting the costs of miner infrastructure/profits, while making sure the network is useful for users. But like the interviewer said, the question is directed at "right now", and Fluffys right to a certain extent, Monero's transactions are huge, and compromises in blockchain security will help facilitate less burdensome transactional activity in the future. But to compare Monero to Bitcoin's transaction sizes is somewhat silly as Bitcoin is nowhere near as useful as monero, and utility will facilitate infrastructure building that may eventually utterly dwarf Bitcoin. And to equate scaling based on a node being run on a desktop being the only option for what classifies as "scalable" is also an incredibly narrow interpretation of the network being able to scale, or not. Given the extremely narrow definition of scaling people love to (incorrectly) use, I consider that a pretty crap question to put to Fluffy in the first place, but... ¯_(ツ)_/¯"
u/xmrusher also contributed to the discussion, comparing Bitcoin to Monero using this analogous description:
"While John is much heavier than Henry, he's still able to run faster, because, unlike Henry, he didn't chop off his own legs just so the local wheelchair manufacturer can make money. While Morono has much larger transactions then Bitcoin, it still scales better, because, unlike Bitcoin, it hasn't limited itself to a cripplingly tiny blocksize just to allow Blockstream to make money."
Setting up a wallet can still be time consuming It's time consuming and can be somewhat difficult for new cryptocurrency users to set up their own wallet using the GUI wallet or the Command Line Wallet. In order to strengthen and further decentralize the Monero network, users are encouraged to run a full node for their wallet, however this can be an issue because it can take up to 24-48 hours for some users depending on their hard-drive and internet speeds. To mitigate this issue, users can run a remote node, meaning they can remotely connect their wallet to another node in order to perform transactions, and in the meantime continue to sync the daemon so in the future they can then use their own node. For users that do run into wallet setup issues, or any other problems for that matter, there is an extremely helpful troubleshooting thread on the Monero subreddit which can be found here. And not only that, unlike some other cryptocurrency subreddits, if you ask a question, there is always a friendly community member who will happily assist you. Monero.how is a fantastic resource too! Despite still being difficult to use, the user-base and price may increase dramatically once it is easier to use. In addition, others believe that when hardware wallets are available more users will shift to Monero.
I actually still feel a little shameful for promoting Monero here, but feel a sense of duty to do so. Monero is transitioning into an unstoppable altruistic beast. This year offers the implementation of many great developments, accompanied by the likelihood of a dramatic increase in price. I request you discuss this post, point out any errors I have made, or any information I may have neglected to include. Also, if you believe in the Monero project, I encourage you to join your local Facebook or Reddit cryptocurrency group and spread the word of Monero. You could even link this post there to bring awareness to new cryptocurrency users and investors. I will leave you with an old on-going joke within the Monero community - Don't buy Monero - unless you have a use case for it of course :-) Just think to yourself though - Do I have a use case for Monero in our unpredictable Huxleyan society? Hint: The answer is ? Edit: Added in the Tail Emission section, and noted Dan Bilzerian as a Monero investor. Also added information regarding the XMR.TO payment service. Added info about hardfork
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