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      "permlink": "mcafee-bitfi",
      "title": "麦卡菲MCAFEE攻不破的BITFI钱包问世，或引领加密货币走向大众？",
      "body": "号称不可攻破的Bitfi硬钱包得到了币圈教父麦卡菲的大力支持，究竟是什么让他这么看好这个所谓的“大脑钱包”？我们来看一下它是否真的可以与其它行业领先的硬钱包竞争。\n\n自从加密货币开始在交易所交易以来，存储比特币和加密资产一直是所有数字货币持有者的首要任务。如果你在加密货币空间里呆得足够长，就会知道两三个家喻户晓的硬线包：Trezor, Ledger, 或许还有KeepKey，它们是离钱存储数字货币行业的领先者，让加密货币投资者将其私钥存储在一个硬件里，而不是存储在网络上。\n\n现在看起来，麦卡菲的Bitfi将挑战这些行业佼佼者，给加密货币世界带来新一轮的革命性跳跃。\n\n![](https://cdn.steemitimages.com/DQmWvbw65pjCh12S4hEx3fbhz8iUuCi9he7S9iHRS27i791/image.png)\n（图片来源：Bitcoin Exchange Guide）\n\nBitfi钱包推出时获得好评\n\n约翰∙麦卡菲John McAfee的新款Bitfi钱包在发布时获得了强有力的媒体评论，“如果你拥有加密货币，你就需要一个Bitfi钱包，”Log Logia在LoggiaOnFire.com上写道。\n\n但Loggia是“麦卡菲加密”McAfee Crypto团队的成员，也是John McAfee的大力支持者，他声称这款钱包即安全又好用，可以提供卓越的加密钱包用户体验。\n\nLoggia声称你甚至无法将Bitfi称为钱包，它非常方便，称它为“便利设备”更准确：\n\n“事实上，说Bitfi是钱包并不是100％准确，叫它钱包是遵循人们现有的习惯，”Loggia解释说。“Bitfi实际上是一种便利设备，是时间金贵的普通人也能使用的最安全的加密货币存储方案：大脑钱包。”\n\n把私钥存在大脑里？实际上这个钱包不能存储任何私钥，用户要记住的，是一个短语，而这个短语只有用户自己知道，记在脑子里，在交易加密货币时，Bitfi使用一个专有算法，用这个短语生成一个临时私钥让用户使用。这就是Bitfi钱包的秘密。\n\n因为钱包里没有私钥，丢了也不会损失自己的加密资产，再补一个钱包就可以了。\n\n另外，Bitfi钱包的显示屏可以让用户一目了然地查看所有余额，并且快速从一个加密货币切换到另一个，号称就像使用ATM一样方便。\n\nBitfi钱包是建立在以太坊区块链上的，所以用户可以查看他们的以太币余额并直接交易，无需第三方服务。\n\n目前BitFi钱包在Amazon网站上的售价是120美元，比其竞争对手要贵20美元左右，也许是可以理解的，毕竟安全性的提高可以说是革命性的，用户体验也是跨越性的，如果你买过加密货币就知道，要记住那一长串人称私钥的乱码是多么困难，更别提对失去它的恐惧了，丢了你的私钥你的加密货币就全都丢了。\n\n麦卡菲悬赏10万美元邀请攻击Bitfi\n\n不知全球黑客和黑客马拉松爱好者做何设想，Bitfi甚至在网上公布了攻击流程及领奖办法，看来麦卡菲真的对Bitfi充满信心。\n\n任何人可以到Bitfi官网註册成为黑客，然后就会收到一个加载了50美元的Bitfi钱包，如果攻破了，就会收到10万美金奖励。更酷的是，任何攻破钱包的人都可以获奖，而不是只奖给第一个攻破钱包的黑客。\n\n在任何人前来领奖之前，我们大可相信Bitfi是铁打的，只要用户不泄漏那个秘密短语他的加密货币就是安全的。",
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      "permlink": "kickico-800-cny",
      "title": "史上首例智能合约攻击得手，黑客从KICKICO盗取近800万美元",
      "body": "KICKICO是一个通过以太坊区块链协议推出的首次币发行（ICO）项目，在7月27日被黑客入侵，损失了7千多万KICK，价值770万美元。\n\n![](https://cdn.steemitimages.com/DQmRvEiYFD9kwRYdQFCQtfzATn7qoKw6wzti6pbmWYjtQ9J/image.png)\n\n（图片来源：Selvakumar Esra Medium）\n\n智能合约被攻破\n\nKICKICO的这次黑客入侵与大多数加密货币、区块链网络和代币入侵不同，对KICKICO的安全攻击是独一无二的，因为黑客获取了KickCoin智能合约的私钥，从而可以直接访问KICKICO区块链网络的智能合约。\n\n在黑客完全控制KickCoin智能合约期间，攻击者破坏了40个地址，另创建了40个具有相同余额的新帐户，从而窃取了来自40个不同帐户的用户资金。由于KICKICO区块链网络上被盗资金并未被永久销毁而是被復制， KICKICO的固定供应量在这次攻击后保持不变。\n\nKICKICO在一个通知中说，“KICKICO遭遇了安全攻击，攻击者进入了KICK智能合约账户，即控制平臺令牌的账户，几名受害者向团队投诉说，他们价值80万美元在钱包里面找不到了。”\n\n事件发生几个小时后，KICKICO团队重新获得了智能合约的访问权，并用冷钱包中的私钥取代了受到破坏的私钥，以保护网络和剩余的用户资金。\n\n“由于我们社区的快速反应和我们团队的协调工作，我们能够重新控制令牌并通过用冷藏的私钥替换受损的私钥来防止进一步的损失，”KICKICO团队说。\n\n对于这40个账户的所有者，该公司将全额偿还每个用户的KickCoin，重新创建40个受到损害的钱包。\n\nKICKICO的开发人员认为，在过去两周KickCoin经歷了指数增长之后，越来越多的黑客攻击了KICKICO网络。KickCoin的价格已从0.04美元（ICO价格）上涨了两倍，达到0.12美元。\n\n但这种说法不足以证明KICKICO的安全性，因为其他所有主要数字资产、ICO代币和区块链项目都是全球数千名老练黑客的目标。\n\nBancor的类似问题\n\n在大约三个半星期前的7月10日，Bancor这个史上筹资第四大的ICO遭到黑客攻击，自有资金的1350万美元被一群黑客盗取。\n\nBancor的官方声明中是这样描述这次攻击的：“一个用于升级某些智能合约的钱包被攻入，这个钱包随后用于从BNT（Bancor代币）智能合约中提取ETH（以太币），总金额是1250万美元。”\n\n幸运的是，Bancor平臺上没有任何用户钱包和资金遭到入侵或被盗，但导致了加密货币研究人员和专家的批评，认为Bancor的网络结构不佳。\n\n来源：Joseph Young ccn",
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      "title": "开启大众挖矿：每个人都可以用笔记本电脑挖掘比特币的应用软件问世",
      "body": "在你没有玩电子游戏的时候，你的电脑自动通过显卡GPU为你挖掘数字金矿 – 比特币，让你越来越富有，30秒下载一款软件就可以开始掘金，比特币从专业挖矿过渡到大众挖矿新阶段或将开启。\n\n![](https://cdn.steemitimages.com/DQmQSMwkMQywYSfKPkpS1zyKyn1HsSQ3bH7CdGuM16W8WFm/image.png)\n(图片来源：Medium.freecodecamp.com）\n\n据CoinDesk报道，一家总部位于新泽西州的加密货币创业公司Honeyminer，上个月悄然推出一款挖矿软件的免费测试版，目前在全球范围内已有1万次下载。这款软件的基本功能：当计算机图形处理器（GPU）没有在处理图像或视频时，Honeyminer将运行一个应用程序，让用户参与一个动态挖矿池。\n\n这个挖矿池专註于挖掘像以太币、以太经典、Zcash、Monero和其他GPU友好的货币，在一个挖矿周期结束时，参与者的收入将被转换成比特币，直接发送到用户的钱包里。\n\n与目前专业化的加密货币挖矿相比，这款软件的好处是，用户（也称“矿工”）无需进行数学计算或管理电脑及GPU的所有配置，或手动检查价格。\n\nHoneyminer的顾问、旧金山Founder Collective的风险资本家Noah Jessop说：\n\n “我们这样做就是为了利用任何闲置的算力，所以你没有在使用的笔记本电脑都会自动进行最有利可图的计算。“\n\n这种类型的服务为那些想要获得比特币但没有多少钱投资，或难以接触加密货币交易所的人提供了新的机会。它还可以扩大加密货币采矿参与者的范围，许多年来，由于昂贵的专业硬件使大型专业操作比业余爱好者更具优势，因此多年来这个领域一直存在着较高的进入壁垒。\n\n如果货币的采矿盈利能力突然发生变化，Honeyminer的算法会每10分钟左右自动在加密货币之间切换，具体取决于区块的大小。\n\n“我们正在将人们聚集在一起，以便更快地找到这些区块奖励。总之，我们有更大的哈希值（算力），”Honeyminer联合创始人Larry Kom说。“我们不仅将您匿名连接到区块链，而且让您本质上参与一个挖矿池。”\n\n这并不是最有利可图的挖掘加密货币的方式，因为比特币市场波动性很大，而Honeyminer也会从中收取费用，从2.5％到8％不等，具体取决于用户硬件的质量。拥有高端GPU的人如果整天运行该软件的话，可能会获得价值1美元或2美元的比特币。\n\n但是，它可能是迄今为止最简单的方法之一。虽然该公司拒绝透露有多少用户来自加密货币受限制的国家，例如约旦或委内瑞拉，但表示超过18％的用户来自发展中国家。\n\n“如果你听说了加密货币并想学习，你可以出去支付真正的现金，”Jessop说。“或者你可以在30秒内下载一个程序，开始免费获得自己的加密货币。”\n\n多元化采矿\n\nHoneyminer的软件诞生，一部分是受到围绕比特币挖掘的争议的启发，也就是说，该软件的许多用户感觉中国的硬件供应商Bitmain几乎垄断了采矿设备，以及类似的少数公司控制了大多数采矿池。\n\n“正如我们在比特币中看到的那样，挖矿设备的竞赛逐渐升级到这类定制硬件，然后能够获得最佳硅芯片的人就是控制采矿的人，” Jessop说。“而对我们来说，一切都是为了增加能够获得同类最佳设备的人数。”\n\n但据运营Siacoin和采矿设备制造商Obelisk的Nebulous的首席执行官David Vorick称，这款软件除了吸引更多好奇的新人之外，可能不会改变更广泛的采矿生态系统，尤其是这个软件的源代码是封闭性的，尽管它称计划在未来扩展中提供开放API。\n\n“这实际上增加了集中化，因为你所做的一切只是把采矿池和使用先进设备的用户手里的优势转移到一个软件工具包上，”他说， “基本上所有权力都将取决于这个软件的开发人员。”\n\nVorick甚至说他相信GPU挖掘在未来两年会近乎完全消失，“我们将会看到能够针对大量采矿算法的通用ASIC采矿硬件。一旦发生这种情况，GPU挖矿就会消失。”\n\n无论好坏，Honeyminer团队都意识到需要为不同类型的用户提供更多的功能。\n\n对于新的散户投资者，Honeyminer将很快可以让他们将比特币发送到Coinbase等第三方平臺上的钱包里。此外，该应用程序的算法也可以帮助那些使用专业挖矿机的矿工。\n\n无论是便宜的笔记本电脑还是专业平臺，“每臺电脑都会根据其特定的性能或功能获得不同的[任务]，您将被分配到最有利可图的东西，”Kom说。\n\nHoneyminer也正在开发一款叫Honeyminer Pro的专业版，这是为专业矿工使用的，可以帮助他们更好地管理功耗，也可以自动选择要挖掘的加密货币。\n\n目前市场上挖矿工具普遍缺乏好的用户体验，Honeyminer也许在弥补一个空白，Kom说：“我会说我们没有明确的竞争对手，这就是我们建造Honeyminer的原因。”\n\n小编认为，这款软件新近开发，肯定还有许多问题，但其潜力不可否认，加密货币空间无论是交易所、钱包，还是分散式应用，普遍用户体验不佳，影响了大众采纳。这款软件如果容易使用，即便一开始每天只能为用户带来一两个美元的收入，其影响也是不可估量的，因为大量的用户意味着大量的新加密货币使用者，会让货币本身持续升值。\n\n来源：Leigh Cuen coindesk",
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      "author": "rfka19a",
      "permlink": "re-jrcornel-re-rfka19a-re-jrcornel-altcoins-getting-crushed-here-s-why-20180722t053908526z",
      "title": "",
      "body": "Of course you do.",
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      "body": "I think I have the gist of it figured out myself.",
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      "body": "Altcoins are crushed because several reasons.  See my analysis here: https://steemit.com/cryptocurrency/@rfka19a/3jvpam",
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      "title": "",
      "body": "I believe the institution investors will focus on bitcoin and ethereum when they start to enter into crypto space.  For retail investors there are opportunities in these, and also in altcoins if selected right.  See my analysis here: https://steemit.com/cryptocurrency/@rfka19a/3jvpam\nRead with a google translator if you don't read Chinese.",
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      "permlink": "re-moneyguruu-decentralized-exchange-vs-centralized-exchange-are-they-future-of-exchanges-20180722t010854202z",
      "title": "",
      "body": "Decentralized exchange is better and may have to co-exist with the centralized ones for a while.  The user experience and customer support is not there yet.  I believe most of the DEX platforms are still busy building and debugging.",
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      "title": "加密货币重心转移：一个以比特币、以太币、企业区块链为中心的新阶段？",
      "body": "近两个月来加密货币市场的风风雨雨中，有一个定数：比特币的主导地位一直在上升，缓慢但趋势明显，截止今天洛杉矶时间上午9:45分许，比特币市值占整个加密货币市场的45.4%。\n\n![](https://cdn.steemitimages.com/DQmVKtZBGf1wyMAdEChkyRzGZQV8LYBSog3wWWEMoasN3xf/image.png)\n\n（图片来源：CoinMarketCap）\n\n以太币仍然是第二名，虽然没有象比特币那样的明显上涨，但保持稳定，其第二名的宝座，目前还没有明显的竞争对手。\n\n如果按这个趋势走下去，我们会看到一个比特币、以太币主导的新的加密世界吗？\n\n比如说，比特币成为主流货币，以太坊成为全球分散应用生长的土壤？\n\n为什么比特币、以太币的主导地位会持续上升？也许我们可以从以下几个方面看出一些迹象。\n\n监管的确定性：比特币和以太币将吸引机构投资者的海量资金\n\n美国证券交易委员会SEC已经明确表示，比特币和以太币不是证券，所有去中心化的实用代币（utility token）也不是证券。\n\n这应该可以给机构投资者们吃一颗定心丸，因为他们迟迟未能直接进入加密空间的原因之一，就是监管的不确定性，尽管其它山寨币的命运尚待确定，机构投资者至少有两只货币可以笃定。\n\n事实上，机构投资者已经迫不及待了，在1月到6月份的加密货币熊市的幕后，机构投资者已经以各种方式在间接投资加密货币了，大量资金流入各种加密货币基金，如Barry Silbert的公司Grayscale Investment，其加密货币基金在这期间创造了该公司资金流入的新记录。一旦coinbase的加密货币托管服务得到机构投资的信任，或是其它可信任的类似服务进入市场，机构投资者的资金将首先进入有确定性的加密货币，如比特币和以太币。\n\n挖矿独角兽对山寨币的威胁\n\n加密货币空间里最大的公司，不是币安Binance，不是coinbase，更不是瑞波Ripple Labs，而是一家挖矿公司比特大陆Bitmain。与其它三个公司的数十亿资产相比，Bitmain每年都能产生数十亿的收入，在2017年的收入超过了30亿，在它完成IPO之后，将成为一个120亿美元的公司。\n\n最近比特大陆推出了一款新的挖矿机Z9 Equalcash ASIC，这对使用Equalcash的山寨币造成了巨大的威胁，一些小的币种，只要几臺这样的挖矿机就可以发起51%攻击，控制这些山寨币的区块链网络。\n\n比特大陆还有形形色色的其它挖矿机，据说他们尤其对非比特币算法的挖矿机的开发感兴趣。\n\n以太币挖矿算法是抗ASIC的，而且以太坊网络很大，节点众多，这样的强大新机器对以太币不构成大的威胁。\n\n虽然比特大陆的比特币日产量目前已达50%，但比特币是个大币，专家对此做过分析，证明对比特币进行51%攻击成本巨大，近乎不可能。另外比特币的核心开发人员已经设计了一个新的算法，让比特币的开采更去中心化，抑制目前大矿池限制矿工采用相同的区块头造成的局域中心化倾向，详见：防止51%攻击有方，比特币核心开发推出新采矿协议 。\n\n比特币和以太币是真正的去中心化区块链\n\n中本聪发明比特币的初衷，是去中心化，即没有一个中心权威控制决策金钱方面的交易。以太币可以说是去中心化这个理想的忠实执行者。\n\n像EOS、NEO、TRON、Ripple这样的“妖币”，其区块链是“伪去中心化”的，这样的网络只有少数节点，各类事物投票决定，包括金钱交易。换句话说，控制了这些节点也就控制了网络。且不说人为的因素，如游说节点对某个地址特殊处理等等，就说黑客入侵吧，控制EOS的21个节点，理论上说要比成千上万个比特币节点要容易得多。\n\n比特币和以太币是真正去中心化的，而且已经发展成大币，并在不断进化，相对其它山寨币，是最安全的。\n\n比特币的进化\n\n对比特币的批评，最多的是其不可扩展性，随着区块链网络中节点的增加，交易确认会越来越慢。为解决这个问题，已经出现了闪电网络Lightning Network，这是一个建在比特币区块链之上的另一层软件，可以把信任双方的多个交易捆绑在一起确认，减少网络上待确认的交易排队。\n\n随着闪电网络的成熟，比特币的主流采纳只是时间问题，基础设施仍在建设中，如开发制造可以接受加密货币支付的零售POS机、ATM等。\n\n以太币的进化\n\n以太坊，即发行使用以太币的区块链，是人类在比特币之后迈出的又一个歷史性一步。\n\n在比特币分散支付的基础之上，以太坊通过智能合约让区块链做更多的事情，不仅仅限于付款收款确认。这事实上可以让全球的电脑通过以太坊连在一起，成为一个巨大的计算机网络。\n\n与比特币一样，以太坊也有可扩展性问题，而且更严重，因为在以太坊上通过智能合约可以做任何事情，如运行一款游戏。在以太坊上已经在运行1700多个分散式应用（Dapp），可扩展性问题越来越突出。\n\n以太坊核心开发人员已经有接近完成的可扩展性解决方案，包括等离子体Plasma和分片Sharding。分片的概念，在另一个基于以太坊的应用项目Zilliqa中已经得到实现，所以以太坊变成可扩展已经很近了。\n\n![](https://cdn.steemitimages.com/DQmQcBg8FMec94hffMqP4xkhQtuBd1vqw1ZoSJQChTbp14Z/image.png)\n\n（图片来源：wemedia.ifeng.com）\n\n企业区块链\n\n区块链在物流、食物追踪、跨境支付等方面得到越来越多的关註与应用，已有一些项目从概念验证阶段进入了实用阶段，如新加坡的跨境贸易区块链，让参与贸易的各方在区块链网络中很方便地交换各种贸易相关文件、确认货物的交接等。\n\n企业大多使用私有的许可链，区块链中的节点都是由认证的可信任的企业进行操作。随着超级账本hyperledger和区块链即服务（baas）的成熟，许多中小企业也可以快速实现从中心化控制到基于区块链的去中心化管理的过渡，变革现有企业流程，进入工业发展的新阶段。",
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      "title": "币行OKCOIN在美国推出法币购买加密货币服务",
      "body": "加密货币交易所OKCoin在美国市场推出了一个分支机构，将提供美元和几种主要加密货币之间的交易服务。\n\n根据周五的OKCoin网站信息，该交易所已经推出了新的产品，现在接受美元存款和取款，以及交易比特币、比特币现金bitcoin cash、莱特币litecoin，以太币（ETH）和以太坊经典ethereum classic （ETC）。\n\n![](https://cdn.steemitimages.com/DQmTx1sNYCa4Jw3d5MmmfrUgBKa11GBmduQWErkvZrC6zX4/image.png)\n\n（图片来源：Crypto News）\n\n关于这个新的分支机构，该公司已于2017年11月向美国金融犯罪执法网络（FinCEN）提交了货币服务业务（MSB）註册，註册文件显示该交易所背后的法律实体名称是OKCoin USA Inc.，总部位于加利福尼亚洲山景城Mountain View。\n\n但OKCoin在其网站上指出，法币和加密货币之间的交易服务目前仅限于加利福尼亚州的投资者， 这是MSB初始申请中的限制。\n\n几周前火币Huobi也有类似的举动，火币本月通过一个名为HBUS的合作伙伴实体为美国所有50个州推出了一个纯粹的加密货币之间的交易服务。\n\nHBUS今年也向 FinCEN 提交了MSB註册，但Huobi的联合创始人兼首席执行官李林当时指出，在FinCEN註册并未解决在美国运营所带来的所有可能的监管问题。\n\n在中国人民银行于2017年9月发布的加密货币交易禁令之前，OKCoin和Huobi都是中国三大加密交易所中之一。\n\n在监管打压之后，这两个交易所将业务转移到了海外，主要集中在加密货币到加密货币之间的交易。\n\nOKCoin成立于2013年，目前在东京、首尔、卢森堡和香港等地设有分支机构和运营中心，为用户提供比特币、莱特币Litecoin和以太坊等数字资产的交易服务。\n\n为美国加密货币投资者提供更多的选择\n\n很长时间以来，希望使用美国的加密货币交易平臺的美国投资者只有两个选择：Coinbase / GDAX和Bittrex，两者都有相当多的问题，未能跟上加密货币的增长。\n\n当然，去年市场的增长速度超过了大多数人能够跟上的速度，但是当硬币每天上涨百分之百以上时，Coinbase的交易所引发了很多问题。当比特币（BTC）在2017年12月创下20,000美元的歷史新高时，Coinbase / GDAX遭遇停电，导致硬币价格大幅下跌。\n\n在加密货币爆发增长后，Bittrex近四个月（12月至4月）没有接受新的投资者。4月10日，Bittrex 再次开放新用户註册，但几分钟后网站就关闭了，该公司当时尚未准备好接受立该进入其网站的巨大流量。\n\nOKCoin和火币Huobi 在中国都经歷了巨大交易量的考验，技术成熟，现在美国投资者似乎有了更多选择。\n\n参考：Chelsea Roh，Wolfie Zhao",
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      "body": "Congratulations @rfka19a! You have completed the following achievement on Steemit and have been rewarded with new badge(s) :\n\n[![](https://steemitimages.com/70x80/http://steemitboard.com/notifications/posts.png)](http://steemitboard.com/@rfka19a) Award for the number of posts published\n\n<sub>_Click on the badge to view your Board of Honor._</sub>\n<sub>_If you no longer want to receive notifications, reply to this comment with the word_ `STOP`</sub>\n\n\n\n**Do not miss the last post from @steemitboard:**\n[SteemitBoard World Cup Contest - Final results coming soon](https://steemit.com/steemitboard/@steemitboard/steemitboard-world-cup-contest-final-contest-result-coming-soon)\n\n> Do you like [SteemitBoard's project](https://steemit.com/@steemitboard)? Then **[Vote for its witness](https://v2.steemconnect.com/sign/account-witness-vote?witness=steemitboard&approve=1)** and **get one more award**!",
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      "title": "山寨币危险了？比特大陆BITMAIN宣布推出更强大的Z9 EQUIHASH ASIC 挖矿机",
      "body": "Bitmain 在过去的十二到十八个月里引入了许多新的ASIC挖矿机，大多数这些设备都受到相当多的仔细研究，主要是因为它们有利于采矿集中化；Antminer Z9是Z9 Mini的更大兄弟；对于使用Equihash算法的货币，它肯定会在9月份带来一些重大变化。\n\n又一个新的Bitmain ASIC挖矿机\n\nBitmain推出另一个ASIC加密货币挖掘机只是时间问题，该公司非常註重开发与比特币挖矿算法完全不同的硬件，一些较小的山寨币被迫通过各种手段应对这种新形式的采矿硬件。\n\n随着新挖矿机的出现，人们越来越关註这些设备对区块链网络的影响。一个新的比特币挖矿机可能不会产生太大影响，因为比特币的整体网络算力已经相当庞大，但依赖于Equihash算法的货币可能会有点问题。\n\n为什么呢？因为目前市场上已经有一臺Equihash ASIC挖矿机Z9 Mini，也是由Bitmain开发的，它已经迫使至少一种货币改变了其挖矿算法，变成了ASIC Resistant，也就是说，如果你有Z9 Mini 挖矿机，挖掘这个货币也不会那么快，不比那些GPU挖矿的竞争对手快多少。当Z9上市时，很多其他货币很可能也会采取类似的方法。\n\n![](https://cdn.steemitimages.com/DQmSRcCnZsohqQCm49RR5gx1AH41WuC48pdTebzx5N8hWqE/image.png)\n\nAntminer Z9 Equihash (图片来源：ScieNews）\n\n让Z9机如此有吸引力的是它的巨大算力。Bitmain称这个装置的开采速度可达每秒40.8k Sol（即每秒做40800次哈希计算），这与几十个显卡的组合一样强大。购买Antminer Z9也相对便宜，只要3319美元，它的设置要求低、便利性高，将成为消费者挖掘Equihash货币的热门采矿设备。\n\n虽然Antminer Z9直到今年9月初才会上市，但它对使用Equihash算法挖矿的山寨币构成了巨大威胁。任何不具备ASIC抗性的货币，在这个设备投放市场时都可能会遭受51％攻击。只需要几个这样的挖矿机就可以支配一些较小的区块链网络，比特币黄金已经经歷了多次这样的攻击，最终切换了它的基础算法。\n\n很明显，Bitmain将继续以任何可能的方式改善它在加密货币行业的地位。从长远来看，利用ASIC矿工开发小市值的山寨币是实现这一目标的一种方式。这也表明我们越来越需要ASIC制造商之间的竞争，因为Bitmain目前是唯一一家生产消费者级别挖矿机的的大公司。\n\n来源：JP Buntinx nulltx",
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      "title": "ZILLIQA 比以太坊更快？區塊鏈遊戲ETHEREMON從以太坊轉向ZILLIQA",
      "body": "可擴展性（scalability）一直是加密貨幣和區塊鏈中最大的問題之一，即使是頂級區塊鏈也無法在一夜之間解決這個問題；由於可擴展性問題，基於區塊鏈的“pokeman克隆”Etheremon正在將其代碼庫從以太坊轉換為Zilliqa。\n\n![](https://cdn.steemitimages.com/DQmQcBg8FMec94hffMqP4xkhQtuBd1vqw1ZoSJQChTbp14Z/image.png)\n\n（圖片來源：wemedia.ifeng.com）\n\nEtheremon選擇Zilliqa\n\n很明顯，在公共區塊鏈上運行的任何大規模運營都會導致問題。在當前這個階段，比特幣鏈和以太坊鏈的設計目標都不是大規模使用。比特幣缺乏可擴展性，不時地會有一些交易問題，主要原因是費用高昂。類似的問題也已經影響了以太坊，但有一個更大的潛在問題需要解決。\n\n對於建立在以太坊區塊鏈上的分散應用DApps和遊戲，目前的情況相當令人擔憂，根據Etheremon團隊的說法，以太坊鏈目前不適合遊戲用途。這並不令人驚訝，因為以太坊仍處於實現其潛力的最初階段，擴展解決方案正在開發中，等離子體Plasma和分片Sharding這兩個可擴展性解決方案必將在未來幾個月內在這方面產生積極影響。\n\n據該團隊稱，高油價（以太坊區塊鏈上的執行費用稱為Gas，與汽油是一個詞）限制了整個Etheremon遊戲體驗。油價上漲到100 圭伊Gwei，這使得遊戲的價格高出100倍。付款玩區塊鏈遊戲並不是很麻煩，但支付高額費用是完全不同的事情。\n\n該團隊已經探索了解決這些問題的臨時解決方案，為了應對不斷上漲的費用和可擴展性問題，Etheremon已經將其戰鬥轉移到了鏈下。但是，這絕不是長期解決方案，因此，該團隊決定將重點轉移到Zilliqa。這不是第一次項目由於費用和可擴展性的原因而離開以太坊。\n\n這個轉移為Etheremon玩家提供了許多優勢。戰鬥將不再收費，玩家每小時將獲得2個免費能量單位參加練習或排名比賽。由於玩家需要執行一次交易以將數據同步到以太坊網絡，因此鏈上數據同步也會發生一些變化。\n\n雖然因為這個問題以太坊看起來不適合區塊鏈遊戲，但是當以太坊新的可擴展性解決方案生效時，情況將會發生變化。但就目前而言，DApp生態系統可能會在短時間內削弱以太坊的區塊鏈。如果開發人員在大多數DApps上市之前實施擴展解決方案，那麼就不會有任何真正需要解決的問題。\n\n關於Zilliqa\n\nZilliqa區塊鏈已經實現了以太坊尚在研發的分片Sharding系統架構，它把待處理的交易池分成小片，然後並行處理這些小片，所以速度大大提高，在可擴展性方面邁進了一大步。\n\n加密貨幣ZILLIQA(ZIL) - 為什麼2018年它會給你帶來高利潤\n\n參考：JP Buntinx",
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      "body": "洛杉机周五上午11点15分许，Loom Network（LOOM）价格上涨超过了43%，位居山寨币涨幅榜首。\n\n![](https://cdn.steemitimages.com/DQmPgzTku6nmid5XzTG68jh4wayRr2uCSG6L911KbtS2Vw6/image.png)\n\n（图片来源：CoinMarketCap）\n\n今天的LOOM暴涨有很好的理由：第一，它在韩国最大的交易所之一Upbit上市，第二，它的软件开发包（SDK）发布了公测beta版本。\n\n什么是Loom Network？\n\nLoom Netwok是一个基于以太坊的区块链，它的区块链实际上是以太坊的一个侧链，已发行了自己的代币LOOM。\n\n当今的电子游戏大多是国际化的，区块链出现后，电子游戏的交易变得比以前容易太多，因为任何地区的玩家都可以用本地的货币购买区块链上的代币，然后用代币购买游戏物品，这比之前法币的兑换方便简单许多，尤其是小额交易，所以许多游戏开发商都想把游戏建在区块链上。\n\nLoom Network提供的正是这些游戏开发商需要的：一个区块链平臺，一个开发包(SDK)。游戏开发商用这个开发包绕过区块链技术，直要开发自己的游戏就可以了，不懂区块链也能开发基于区块链的游戏。\n\n以太坊目前的主要问题仍然是可扩展性，近来Fcoin的“交易挖矿”模式让以太坊网络堵塞了数小时，而之前曾一度火热的以太坊游戏CryptoKitties冷下来部分原因也是因为以太坊太慢。\n\n那么基于以太坊的Loom Network会怎么样？据其官方网站称，因为LOOM是一个侧链，可以有自己独立的操作，与以太坊主区块链互动有限，所以可以很快。另外他们计划使用以太坊正在开发的可扩展性解决方案之一“等离子体”Plasma来加快速度。\n\nLoom Network不仅仅是关註游戏，也关註社交媒体以及与游戏的结合，已经在使用其平臺的应用包括问答网站DelegateCall，CryptoZombies等。\n\nLoom Network 总部位于泰国曼谷，团队成立于2017年9月，目前已推出了开发包SDK测试版，这件事意义重大，因为游戏开发商现在可以在Loom Network平臺上开发自己的游戏了。\n\n平臺上的LOOM代币目前可以用于购买开发人员构建游戏的许可证。",
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      "title": "力不从心，以太坊创始人诅咒中心化的加密货币交易所",
      "body": "以太坊联合创始人Vitalik Buterin表示，他希望看到中心化加密货币交易“尽可能地在地狱中燃烧”，但同时也承认发生这件事的时间还很遥远。\n\n![](https://cdn.steemitimages.com/DQmUscH2swka3EzbVAj7gH2MJwgje3kyWsp7mULmGJ77Cm2/image.png)\n\n（图片来源：Financial Post）\n\nButerin出席了7月6日在瑞士楚格Zug举行的TC Sessions Blockchain 2018活动并在会上发表讲话。\n\n在回答主持人关于分散交易所有朝一日会比中心化交易所获得更大市场份额的问题时，Buterin回答说：\n\n“我个人希望中心化交易所能尽可能地在地狱中燃烧，但在实践中，特别是在法币到加密货币方面，非常难以去中心化，因为你最终与法定货币世界接壤，而法币世界只有基本上是中心化的网关...那里提供有价值的服务，但非常难以去中心化。“\n\nVitalik继续预测，在加密货币之间的交易方面，去中心化的分散交易平臺（DEX）解决方案有一天会成为最理想的，因为它们提供简单直接的用户体验，没有註册、Web界面和开设帐户等环节。在他看来，加密世界将会看到越来越多的这种交易平臺出现。\n\n然而，大宗交易者、专业交易商，以及高频交易者会选择哪种方案，他表示并不确定。在他看来，最终即使中心化交易所不会完全消失，分散交易所的兴起也只能是一件好事，因为它从现有交易所中消除了他称之为“制造国王的力量”。\n\n解释这一点他说：\n\n“......我们真的可以剥夺这个愚蠢的国王制造权力，这些中心化交易所拥有这种能力，通过决定让谁挂牌上市来决定哪个加密货币可以变大，然后疯狂收取1000万至1500万美元的上市费用。我们越远离这个世界越好，建立实际上满足区块链开放性和透明性价值的东西。“\n\n值得一提的是，2018年3月，全球最大的加密货币交易所币安Binance宣布，它正在完成开放去中心交易所的计划。火币Huobi也在6月宣布，它计划最终将其整个平臺转换为分散交易平臺。\n\n也许是加密货币交易所的发展趋势，OKEx最近公开了其创建分散交易平臺的计划，与此同时，许多分析师继续主张采用DEX交易模型。\n\n正如莱特币创始人Charlie Lee所说，加密货币的去中心化的民主体系虽有其好处，也有效率低的问题；中心集权体系有其弊病，但做事效率可以非常高。也许加密货币世界需要的是两者的平衡才会快速发展。这可以从以太坊自身的进展看出其必要性。以太坊迟迟不能解决可扩展性问题，也许就是因为太分散，没有某个实体在组织人力物力加速解决这个关键问题。\n\n如果我们看一下现实世界中各种技术标准的制定，就会知道以太坊需要什么。比如在移动通讯世界，从3G到5G，标准的制定是由全球大企业的精英参与，以中心化加民主化的方式制定的，保证了移动网络基础设施的快速发展，也促进了智能手机的快速普及。\n\n参考：David Hundeyin ccn",
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