Ruibo's digital currency

1.

bitcoin (BTC)

issue date: 2009

market value: US $163 billion

advantage: as the first cryptocurrency issued, bitcoin is the world's largest and most popular blockchain network and the most experienced cryptocurrency that can resist hacker attacks

disadvantage: the increasing demand brings great pressure to bitcoin network, which makes the transaction cost high. The system can only process about seven transactions per second, but its power consumption is amazing. This is mainly e to its workload proof mechanism and consensus principle, which makes mining become a labor-intensive activity

eth

release date: 2015

market value: US $70 billion

advantage: its built-in programming language allows developers to write their own smart contract computer programs running on the blockchain. So far, most of the first token sales are based on Ethereum's smart contracts

Disadvantages: Ethereum also uses the consistency protocol of workload proof, so it is relatively slow and consumes a lot of power. Many early smart contracts are vulnerable to hacker attacks, and the development of smart contract security is still immature

XRP

issue time: 2012

market value: US $32 billion

advantage: XRP claims that its XRP cryptocurrency can become the "bridge currency" of major financial institutions, and can settle cross-border payments more quickly and at lower cost. Ruibo uses a new consistency protocol, which can achieve faster transactions, faster than t-coin and Ethereum

disadvantages: as a private company, Ruibo has important control over the system, some people think that XRP is not decentralized enough, which is in contrast to bitcoin, which anyone can mine

bitcoin cash (BCH)

issue time: 2017

market value: US $19 billion

advantage: this kind of currency is a "hard fork" of bitcoin, and its founder has adjusted compared with bitcoin, so that it can handle a larger transaction volume

disadvantage: critics say bitcoin cash is too centralized - a few miners create most of the money

lightcoin (LTC)

time of issue: 2011

market value: US $10 billion

advantage: lightcoin is a kind of "alternative currency" - almost a clone of bitcoin, but there are still several differences. Lightcoin processes transactions four times faster than bitcoin, and the mining process remains open to amateurs - very different from bitcoin, because bitcoin's professional miners use expensive hardware

disadvantages: although it is faster than bitcoin, lightcoin is still too slow and consumes a lot of power. These factors make it unable to become an ideal payment method, and there is another disadvantage: it is not very famous

recommend an article: brief introction of the top 100 currencies in the market value ranking of digital currency. This article summarizes the brief introction of the top 100 currencies in the market value ranking (according to the market value ranking of coinmarket cap on July 30, 2018), hoping to be helpful to friends who have just entered the currency circle

2. Let's briefly talk about my prediction of this thing:
1. The central bank's digital currency is definitely just a pure settlement network, which only allows banks and third-party financial institutions to use, and it is likely to stipulate that it must be used among institutions at that time. With this settlement network, the central bank should be able to review every transaction between institutions very easily
2. Don't expect it to be used by ordinary citizens. Freedom, equality and self responsibility are the basic concepts of digital currency. These are not allowed by the central bank
Freedom: the central bank will not allow you to transfer money as you want. The withdrawal of cash abroad should be limited to 100000. How can you complete the transfer by broadcasting data once
Equality: even if you hold on to the private key of reborn, it's hard for reborn to do anything to you. But the central bank needs to have life and death power over your property. So how can the central bank gain the authority to seize you in an open digital currency system? Use an admin level private key? Does it need multi-level permission control? Is it necessary to divide the internal and external network? After all these things are added, isn't that the traditional system? Why add to the cake and add to the blockchain
be responsible for yourself: it's easy to understand. If you lose your private key, it's all over. The reason why Yang Ma is called ma is that this kind of thing must be managed. Private key is too dangerous to be used by ordinary people

therefore, I think too much about what digital currency can fry or even replace bitcoin. It's something that has nothing to do with ordinary people.