近日，有的小伙伴给币小宝留言说，为什么钱包里有两个币的地址一样呢？要搞清这个问题，我们先简单盘点一下目前常见的八大公链。
Recently, some of the boys left a message about why two coins are in their wallets like the address. To figure this out, let's take a simple inventory of the eight public chains that are now common.
NO.1 比特币
加密货币市场龙头，长期市值占比高达60%以上。比特币网络运行数十年，未出现任何安全问题。比特币久经市场考验，才有了今天的成就。比特币网络安全性高，但是转账速度非常慢，手续费高昂，每秒仅仅支持7笔转账（TPS=7）,因此，比较适合大额支付。
Bitcoin has been operating for decades without any security problems. Bitcoin has been tested for a long time, and it has been a success today. Bitcoin is secure, but transfers are very slow and costly, supporting only seven transfers (TPS = 7) per second, and is therefore more suitable for large payments.
比特币的地址开头有三种：1开头的地址、3开头的地址、bc1开头的地址。
There are three initial addresses in Bitcoin: one address at the beginning, three addresses at the beginning, and bc1 addresses at the beginning.
反过来，以上面这三种开头的地址都是比特币或基于比特币这条公链发行的代币。
Conversely, the addresses at the beginning of the three above are either bitcoins or tokens issued on the basis of the public chain of bitcoins.
比如，我们之前提到的USDT有三种类型，有一种USDT-Omni就是基于比特币网络发行的，因此它的地址一般以3开头。
For example, there are three types of USDT to which we referred earlier, and one USDT-Omni is issued on the basis of the Bitcoin network, so it usually starts with three addresses.
NO.2?以太坊
NO.2?
2014年由V神提出，长期排名第二。性能和扩展性高于比特币，以太坊的出现，大幅降低了代币发行难度。从某个角度来说，没有以太坊的大火，就没有2017年的牛市，但同样以太坊也带来了滥发代币的风险，致使垃圾项目大行其道，所谓成也萧何败萧何，大抵如此。
In 2014, proposed by the V Gods, it ranked second in the long run. Performance and expansion were higher than Bitcoin, and the emergence of the Taikus greatly reduced the difficulty of issuing the tokens.
以太坊网络TPS约为20左右，但安全性低于比特币。以太坊网络曾出现多起黑客攻击盗币事件，如之前的Dao事件，黑客利用以太坊漏洞盗走了300万个以太坊，当时价值约6000万美金。
Ethernet TPS is about 20, but it is less secure than Bitcoin. There have been several hacking incidents of currency theft, such as the previous Dao incident, in which hackers stole 3 million ethayas, worth about $60 million.
以太坊发行总量无上限，目前大约流通量为1亿枚。以太坊挖发行比比特币复杂，上线前预挖7200万枚，目前矿工采用POW挖出了大约3000多万枚，后期会转向POS机制。
There is no limit to the total circulation of the portal, which currently stands at about 100 million. The distribution of bibitcoin in the portal is complicated, 72 million are pre-excavated, and miners now dig about 30 million units using the Pow, and later turn to the POS mechanism.
总体而言，以太坊性能（TPS=20）和扩展性高于比特币，但安全性低，以太坊地址一般以0x开头。同理，只要是基于ERC20发行的代币，地址和以太坊一样。
In general, it is higher than bitcoin in terms of eBay performance (TPS = 20) and expansion, but less secure, usually starting with 0x. Similarly, as long as it is based on the currency issued by ERC 20, the address is the same as that of Etheria.
以太坊网络虽然有诸多问题，但仍然通过智能合约、隔离见证等技术成为了一个优秀的公链。
Despite its many problems, Ethernet has become an excellent public chain through smart contracts, isolation witnesses, etc.
NO.3 瑞波币
瑞波早在2004年便启动研发，由于信任问题，早期发展并不顺利。瑞波实验室（前身为OpenCoin公司）接手后，终于在2013发行正式版本。瑞波币XRP是Ripple网络的基础货币，总数量为1000亿，并且随着交易的增多而逐渐减少。
Ripper started research and development as early as 2004, and early development was not successful due to trust problems. After taking over from the Ripper Laboratory (formerly OpenCoin), the official version was released in 2013. Ribbon XRP is the basic currency of the Ripple network, with a total of 100 billion dollars, and has been declining as transactions have increased.
与比特币以太坊的去中心化理念不同，瑞波公司持有800亿枚瑞波币，这点也是制约瑞波币发展的一大原因，瑞波币主要定位跨国支付，与其他项目相比，瑞波的转账手续费十分低廉，几乎为0，TPS大约1000左右。
Unlike the idea of decentralisation of Bitcoin Ethio, Rhebo holds 80 billion rippoons, which is also a major constraint on Rhepoco's development. Rhepoco is primarily targeted for cross-border payments, and Rhepo's transfer fees are very low, almost zero, and TPS is about 1,000, compared to other projects.
NO.4 艾达币 ADA
项目名称：Cardano（卡尔塔诺）? 代币：ADA（艾达币）
Project name: Cardano (Cartano)?
ADA又称日本版的以太坊，在日本具有极高的人气。
ADA, also known as the Japanese version of the Etheria, is extremely human in Japan.
与众多理工气息浓厚的团队不同，Cardano（ADA）是一个充满了学术气息的公链项目，核心成员部分来自以太坊，多数都是博士大牛，因坚持严格的同行评审、先进的技术理念以及其向各项目广泛借鉴优点等特点而获得较多好评。
Unlike many SMART teams, Cardano (ADA) is an academic public-chain project with a core membership of Ether, mostly Ph.D. Bulls, which has received much appreciation for its rigorous peer review, advanced technological ideas and its extensive use of merit in projects.
但由于其开发社区和运营团队本身的不和谐，ADA的进展一直相对缓慢，ADA采用的是POS算法，今年团队终于宣布了最新升级计划，受此利好影响，ADA自3·12低点以来已经反弹了接近5倍，年内涨幅位列公链第一。据币小宝官网显示，目前ADA市值排名第7。
But progress has been relatively slow because of the disharmony between the development community and the operating team itself, with ADA using the POS algorithm, which has finally announced the latest upgrade plan this year. This benefit has been influenced by the fact that ADA has rebounded almost five times since the 3-12 low point, and has grown in the first public chain in the year.
NO.5 EOS
EOS曾在在国内火爆程度堪比当年的以太坊，号称“区块链3.0”，然而也仅仅是吹牛而已。EOS采用DPOS共识机制，是ADA的直接竞争对手。DPOS是一种弱中心化的共识机制，全球有21个节点可以参与投票治理，也就是所谓的精英治理。而像比特币和以太坊则是人人均可投票，这是非常民主的治理方式。EOS目前主要用于菠菜、抽奖等去中心化应用（DAPP）。性能优于以太坊，手续费中等，TPS大约500左右。
The EOS, which used to be more intense in the country than it was then, called “The Block Chain 3.0”, is simply a bragging. The DPOS consensus mechanism is a direct competition for ADA. The DPOS is a weak, centralized consensus mechanism, with 21 nodes around the world participating in voting governance, the so-called elite governance.
NO.6 波场TRON
NO.6 BandsTron
项目名称：TRON（波场）? 代币：TRX
Project name: TRON?
提到波场，不得不提到孙宇晨和超级波场的事情。孙宇晨是谁？波场创始人，去年拍下巴菲特午餐的年轻人，币圈营销第一人。而超级波场则被我国定性为CX项目，由于名字相似，给波场带来了非常负面的影响，实际上波场和超级波场完全不同。
When it comes to the bazaar, it has to be said about Sun Woo-moo and the super-boom. Who is Sun Woo-moo? The founder of the buffet, the young man who shot the barfette lunch last year, and the first person in the currency business.
波场也是比较知名的公链，同样采用DPOS共识机制，性能优于EOS，TPS大约2000。尽管市值排名17，但是DAPP应用数量远高于EOS，有望超越以太坊。缺点是DAPP以菠菜类为主，好处是基于波场的代币转账基本免费。之前提到的USDT-TRX是基于波场发行的USDT，通过波场网络，这种类型的USDT不仅转账速度快，而且免费。
It is also a relatively well-known public chain, using also the DPOS Consensus mechanism, which has a better performance than the EOS, TPS, approximately 2000. Despite ranking 17, the number of DAPP applications is much higher than the EOS, and is expected to go beyond ETO. The disadvantage is that DAPP is dominated by spinach, and the benefits are essentially free of charge for money transfers based on the market. The USDT-TRX mentioned earlier is based on the USDT issued by the Wave Yard, which, through its network, is not only fast to transfer but also free of charge.
NO.7 恒星链?Stellar
NO.7 Stellar Chains?
Stellar中文名是恒星链，代币XLM，是一个去中心化分布式的账本，每秒支持17笔交易，高于比特币。
The name Steelar in Chinese is the chain of stars, the token XLM, a decentralised distributed account book that supports 17 transactions per second, higher than Bitcoin.
它的创始人是Jed McCaleb，同时也是瑞波和Mt. Gox的创始人，当初从瑞波出走，创立了“一个秘密的比特币项目”——Stellar，但实际上只是基于ripple的代码做了一些小修改而已。
Its founders, Jed McCaleb and Mt. Gox, ran away from Ripper and created a “secret bitcoin project” — Stellar, but in fact it was only a minor modification based on the Ripple code.
与比特币不同的是，Stellar不能挖矿，产出是靠每年1%的固定通胀来提升总量。另外，Stellar还允许用户发新币。
Unlike Bitcoin, Steelar is unable to dig, with output rising by 1% of fixed inflation per year. Steelar also allows users to issue new currency.
Stellar的应用场景就是支付，因此吸引的用户主要是支付平台以及银行，做跨境支付平台。
Steelar's application is payment, so it attracts mainly payment platforms as well as banks for cross-border payment platforms.
NO.8 TezosXTZ
据币小宝官网显示，XTZ目前市值排名14.
XTZ is currently ranked 14.
Tezos是一个能自我修复的区块链加密系统，和以太坊一样都是去中心化智能合约平台，支持权益证明智能合约（POS），并提供一个平台让其他人在上面建立去中心化的应用程序（Dapps），利益相关者可以就协议的修正案进行投票，而Tezos的代币就是 XTZ。
Tezos is a self-repairable block chain encryption system that, like Ether, is a platform for decentralizing intellectual contracts, supporting the Proprietary Smart Contracts (POS) and providing a platform for others to build decentralised applications (Dapps) on which stakeholders can vote on amendments to agreements, while Tezos’ token is XTZ.
Tezos采用DPOS共识算法，TPS约为40，独家智能合约、代码自动升级、独家编程程序这些亮点曾让这个项目融到2.3亿美元，成为2017年炙手可热的项目。
Tezos uses the DPOS Consensus algorithm, TPS about 40, and the bright spots of sole intelligence contracts, automatic code upgrades and exclusive programming programs have allowed the project to melt to $230 million and become a hot-hot project in 2017.
总结，公链曾诞生过许多明星项目，如当年的NEO、DASH等，这些项目曾红极一时，巅峰时期收益率超过100倍，但由于缺乏实际落地应用，最后逐渐没落，币小宝上文提到的8个项目是目前相对比较优质的公链，技术方面各有特色，安全性方面比特币仍然是老大，速度方面波场现在是NO.1。
In conclusion, the public chain has produced a number of star projects, such as NEO, DASH and others, which were once red, with a peak rate of return of more than 100 times, but the eight items mentioned above are currently relatively high-quality public chains, with different technical features, with the security dimension remaining the dominant one, and the speed dimension is now NO.1.
以上即是本期的《币知币会》，我是币小宝，欢迎关注。
This is the current currency notification conference, and I am a small treasure and welcome attention.
来源：金色财经
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