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      "body": "## 前言\nBitShares Core Release 2.0.180612 新版本发布，修复重大bug。这是一个协议升级（硬分叉）版本，请所有节点在 2018年7月19日（周四）北京时间晚上22:00前完成升级。\n\n参考公告：\nhttps://steemit.com/bitshares/@abit/bitshares-core-release-2-0-180425\n\n##升级步骤\n\n```\ngit fetch origin\ngit checkout 2.0.180612\ngit submodule update --init --recursive\ngit submodule sync --recursive\ngit submodule update --init --recursive\ncmake -DCMAKE_BUILD_TYPE=RelWithDebInfo .\nmake clean\nmake\n\n使用replay-blockchain参数启动witness：\nbitshares/bitshares-core/programs/witness_node/witness_node -d ./node_data  --partial-operations true --replay-blockchain\n```\n\n##问题解决\n\n错误：\n> make[5]: *** 没有规则可以创建“libeditline_la-editline.lo”需要的目标“/root/bitshares/bitshares-core/libraries/fc/vendor/editline/src/editline.c”。 停止。\n\n由于在root目录编译，移动到/home目录重新编译,已有的编译连接文件，导致的问题。\n\n解决：\n重新clone项目，把bitshares/bitshares-core/libraries替换为最新的版本，重新编译。",
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      "body": "## 前言\nbitshares官方是在ubuntu环境下编译，Centos7编译过程大致相同，也遇到一些坑，本文以供参考。\n\n---\n## 编译\n1、安装Boost_1_57_0版本\nbitshares支持的Boost版本范围是：1.57- 1.65，太高或太低都不行。\n```\nwget https://nchc.dl.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.tar.gz\ntar -xf boost_1_57_0.tar.gz\ncd boost_1_57_0\n./bootstrap.sh\n./b2\nsudo cp -rf boost /usr/include\nsudo cp -rf stage/lib/* /usr/lib64\n```\n\n2、安装依赖\n```\nyum install libzip-devel\nyum install bzip2-devel\nyum install libdbi-devel\nyum install readline-devel\nyum install autoconf\nyum install libtool\nyum install ntp\n```\n\n3、编译bitshares\n\n```\ngit clone https://github.com/bitshares/bitshares-core.git\n\ncd bitshares-core\n\ngit checkout <LATEST_RELEASE_TAG>\n#查看最新版本https://github.com/bitshares/bitshares-core/releases, 如：git checkout 2.0.180202\n\ngit submodule update --init --recursive\n\ncmake -DCMAKE_BUILD_TYPE=RelWithDebInfo .\n\nmake\n\n```\n\n4、运行节点\n\n```\n cd /root/bitshares/bitshares-core/programs/witness_node\n\n./witness_node -d ./node_data  --partial-operations true --track-account '\"1.2.786642\"' --track-account '\"1.2.514416\"' --track-account '\"1.2.749822\"' --track-account '\"1.2.749799\"' --track-account '\"1.2.691115\"' --track-account '\"1.2.664208\"' --rpc-endpoint\n# 注：--track-account '\"1.2.786642”'只跟踪我们关心的账号，较少内存消耗\n```\n\n测试：\n```\ncurl http://localhost:8090 -d '{\"jsonrpc\": \"2.0\", \"method\": \"get_block\", \"params\": [1], \"id\": 1}’\n```\n\n本地ws为:\n```\nws://localhost:8090\n```\n\n---\n##问题与解决\n\n**问题1：**\n> 致命错误：curl/curl.h：没有那个文件或目录\n\n解决：\n\n> yum install libcurl-devel\n\n**问题2：**\n> 没有规则可以创建“libraries/fc/tests/all_tests”需要的目标“/usr/lib64/openssl/libcrypto.so”。 停止。\n\n解决：\ncmake指定openssl库路径，只支持openssl 1.0.x，不支持更新的1.1.x\n```\ncmake -DOPENSSL_INCLUDE_DIR=/usr/lib64/ -DOPENSSL_SSL_LIBRARY=/usr/lib64/libssl.so -DOPENSSL_CRYPTO_LIBRARY=/usr/lib64/libcrypto.so .\n```\n其中libcrypto.so和libssl.so位置可通过find命令查找出来。\n\n\n**问题3：**\n\n>CMake Error at CMakeLists.txt:15 (message):\n>  GCC version must be at least 4.8!\n\n解决：\n升级GCC\n```\nyum install centos-release-scl\nyum install devtoolset-3-toolchain\nscl enable devtoolset-3 bash\n```\n\n查看版本：\ngcc —version\n\n把 /usr/bin/c++， /usr/bin/cc替换为最新版本：\n```\n cp /opt/rh/devtoolset-2/root/usr/bin/cc /usr/bin/cc\ncp /usr/local/bin/c++ /usr/bin/c++\n```\n\n修改cmake编译器版本及默认路径：\n打开文件bitshares/bitshares-core/CMakeFiles/2.8.12.2/CMakeCXXCompiler.cmake\n将以下内容\n```\nset(CMAKE_CXX_IMPLICIT_LINK_DIRECTORIES \"/usr/lib/gcc/x86_64-redhat-linux/4.4.7;/usr/lib64;/lib64;/usr/lib”)\n```\n改为\n```\nset(CMAKE_CXX_IMPLICIT_LINK_DIRECTORIES \" /usr/local/bin/;/usr/lib64;/lib64;/usr/lib”)\nset(CMAKE_CXX_COMPILER_VERSION \"4.8.5”)\n```",
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      "body": "版权声明\n\n本文首发自微信公共帐号：\n曾老师的黑板报（zenglaoshibanbao）\n无需授权即可转载，甚至无需保留以上版权声明\n转载时请务必注明作者。\n---\n\n目录：\n\n- 什么账号这么值钱，竞拍到15万个EOS\n- 为什么你离自由财富还差一个EOS靓号的距离\n\t- 投资是寻找向下有限，向上无限的机会\n\t- 为什么是EOS账号名\n\t\t- 稀缺性，不可再生\n\t\t- 一次注册，永久产权\n\t\t- 可多级拓展性\n\t\t- 成本向下有限，收益向上无限\n\t- EOS账号名作用不仅仅是转账\n- 账号抢注原则\n- 如何参与\n\t- 竞拍短名\n\t- 抢注靓号\n- 现在抢注晚了吗\n- 应该怎么操作\n- 风险提醒\n\n\n\n# 什么账号这么值钱，竞拍到15万个EOS？\n\nEOS账号拍卖情况可以在这里查看：\n\nhttps://eosmonitor.io/bidnames\n\n![2018-07-10_184211.jpg](https://cdn.steemitimages.com/DQmTaD2EGZ7E3kQMZTqto9KfVHMKnor3FYb5s8vjofV7bzt/2018-07-10_184211.jpg)\n\n目前排在第一的是账号：com，15w个EOS。\n\n15w个EOS，按照现在(2018-07-08)价格大概870w人民币。\n\n贵吗？一点都不贵，后面分析。\n\n\n# 为什么你离自由财富还差一个EOS靓号的距离？\n\n## 投资是寻找向下有限，向上无限的机会\n\n投资寻找赔率高的机会：成本向下有限，收益向上无限。\n\n例如20年前的域名，9年前比特币，2周前的EOS RAM都是属于“向下有限，线上无限”的投资机会。小投入，即使归零，成本损失是有下限的。可是一旦压中，收益却是没有上限。\n\n尽可能避免做“向下无限，向上有限”的事情。例如：\n\n> 给亲朋好友推荐股票、数字资产就不是好主意。赚钱了，他们不会分你钱，最多说声谢谢；可如果亏钱了，反而可能长时间责备于你，甚至背负各种骂名。所以我从不向身边的亲朋好友推荐任何股票或数字资产。\n\n那问题来了：现在还有这样的机会吗？\n\n有，那就是EOS账号投资。\n\n## 为什么是EOS账号名\n\n> - 稀缺性，不可再生\n> - 一次注册，永久产权\n> - 可多级拓展性\n> - 成本向下有限，收益向上无限\n\n### 稀缺性，不可再生\n账号标识唯一，天然稀缺性，注册后就不可再生。\n\n###  一次注册，永久产权\n账号在第一次注册需要支出小额费用，跟域名不同的是，注册后账号永久属于你的，不需要每年续费！\n\n### 可多级拓展性\nEOS的账号设计是可以多级拓展，适合公司架构层级使用。\n\n比如，com账号拥有者，可以有偿帮百度公司注册baidu.com，帮淘宝注册taobao.com，帮google注册google.com，帮facebook注册facebook.com……\n\n打住！好像哪里不太对：\n\n发现没，**com账号拥有者就等于现在的顶级域名服务商！**\n\n域名的生意，在EOS这里也行得通！\n\n顺便提醒下，360公司可是花了超过1亿人民币购买360.com……\n\n不到1000万买com账号，现在你还觉得还贵吗？\n\n### 成本向下有限，收益向上无限\n历史总是在重演，现在注册EOS成本是有下限的，一旦压中一两个靓号，收益上限是无限的。\n\n正是我们需要寻找的“找向下有限，向上无限”的机会，并且越早参与，机会越大！\n\n别忘了：**即使是普通账号，每个账号背后都有4k RAM价值支撑**。\n\n\n##  EOS账号名作用不仅仅是转账\n\nEOS账号名仅仅只能用来转账吗？——未必。\n\n除了DNS解析外，其特性跟互联网域名是一致的：唯一标识，多级拓展，稀有性等等。\n\n**如果说EOS区块链是未来价值互联网3.0，那么EOS账户名完全可以成为区块链的“域名”地址！**\n\n未来会不会出现这样的DAPP：利用EOS账号名，实现去中心化的域名解析！\n\n例如，com账号拥有者生成子账号baidu.com既可以是EOS账号，也可以通过DAPP实现域名解析！类似namecoin。\n\nnamecoin项目完全可以移植到EOS大生态里面来。\n\nEOS账号想象空间太大了，而这一切才刚刚开始，现在都在捡便宜阶段。\n\n# 账号抢注原则\n\n道理都懂了，那抢注账号要注意什么？\n\n账号抢注的原则：\n\n> 考虑账号的流动性\n\n直白点就是，你注册的所谓“靓号”，未来谁会来接盘。这点跟域名一样，不要自以为是靓号，结果有价无市，根本卖不出去。\n\n离“钱”最近的人，比如：交易所、DAPP项目方、投资/投机者、收藏者、后续金融入场者……这些对象才可能对你手上的靓号感兴趣，账号具备潜在的巨大流动性，才有投资价值，否则可能会烂在手里。\n\n# 如何参与\n\n两种方式参与：竞拍短名字和抢注12位名字。\n\n## 竞拍短名\n- 定级域名后缀\n\t- 比如com，cn，net\n- 短，短，短\n\t- 越短越好，有含义更佳，如eos\n- 现有互联网公司域名\n\t- 如taobao，alipay，qq\n- 品牌名称\n\t- 如paypal\n- 优质英文单词\n\t- 如apple\n- 优质双拼\n\t- 如jinsha\n\n竞拍可以在钱包进行，或者参考教程：http://t.cn/Rd0of2F，自己接触一手资料操作。\n\n## 抢注靓号\n很多人认为12位长度用户名，抢注没有意义，其实不然。12位长度也有靓号！\n\n尽可能寻找长度刚好12位，有意义自然拼音、英文单词组合。\n\n寻找好名字思考框架，可以从以下几个方面考虑：\n\n> **衣食住行育乐**\n\n\n举例，抛砖引玉：\n\n- 历史名人：\n\t- dengxiaoping（邓小平）\n\t- zhuyuanzhang(朱元璋)\n\t- liangsicheng(梁思成)\n\n- 流量明星：\n\t- cangjingkong（苍井空）\n\t- zhangguorong（张国荣）\n\n- 地名/名胜古迹/河流大川：\n\t- changbaishan（长白山）\n\t- peoplesquare（人民广场）\n\t- songhuajiang(松花江)\n\t- chongmingdao(崇明岛)\n\t- yuanmingyuan(圆明园)\n\n- 知名品牌：\n\t- hongshuangxi(红双喜)\n\t- lengsuanling（冷酸灵）\n\t- chinaeastern(东方航空)\n\n- 自然三拼、四拼：\n\t- yingjiesheng(应届生)\n\t- kongmingdeng(孔明灯)\n\n# 现在抢注晚了吗？\n\n不晚。\n\n有人在EOS主网上线一周后就叹息抢注晚了。我是上线半个月后才关注到，还有大批靓号无人问津，注册了几十个。当然没想到的是，注册后一周时间内存飙升40倍，换而言之，账号也升值了40倍。\n\nEOS账号注册是有门槛的。哪怕是现在，绝大部分人甚至都不知道怎么注册EOS账号，你只要踏出第一步就已经超过90%的人了。注册教程可以查看本公众号历史文章。\n\n**有门槛对于勤奋者也是好事，把懒惰之人、伸手党都拒之门外**。\n\n当前就好比90年代初兴起的互联网，日后天价好域名遍地都是。现在依然不晚，大家都在炒RAM，你不妨关注下EOS账号抢注。\n\n\n# 应该怎么操作\n\n**如果你是散户：**\n- 学习如何注册EOS账号名，不要怕麻烦。当初主网上线时候，注册账号只有命令方式，很多人怕麻烦等钱包功能上线，很多好的机会就被别人抢了。\n- 在自己最熟悉领域，能力圈内筛选出几个有价值的靓号并注册，成本最多也就10来个EOS。\n\n**如果你是大户：**\n\n- 竞拍短名靓号，越短越好\n- 优先竞拍顶级域名后缀名字，如com，cn，net\n- 现有互联网巨头域名次之\n- 最后是品相好的双拼、英文\n\n要提醒的是：即使是现在天价域名，也是有极大的时间成本。不要想着第二天就卖出去。早早地下车，日后拍断大腿。\n\n记住：\n\n**长期持有，把账号的owner，active私钥打印出来备份。忘掉这个事情。5年后再看。**\n\n# 风险提醒\n\n综上是基于未来EOS终究会成长为超级系统的假设之上的分析。如果哪天EOS项目失败了，所谓靓号将变得无意义。\n\n以上为现阶段个人思考认知，请自行判断，风险自负！\n\n欢迎关注公众号：zenglaoshibanbao",
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      "body": "*版权声明*\n\n\n本文首发自微信公共帐号： \n\n曾老师的黑板报（zenglaoshibanbao） \n\n无需授权即可转载，甚至无需保留以上版权声明 \n\n转载时请务必注明作者。\n\n\n\n## EOS摆脱不了DDoS \n\n作为信息安全从业者，我得出的结论跟金马文章《EOS才不会那么容易被DDoS呢》中的结论是相反的：EOS摆脱不了DDoS。 \n\n\n\n ### 什么是DDoS \n\n\n\n来自维基百科的DDoS解释： \n\n > 拒绝服务攻击（英语：denial-of-service attack，缩写：DoS attack、DoS）亦称洪水攻击，是一种网络攻击手法，其目的在于使目标电脑的网络或系统资源耗尽，使服务暂时中断或停止，导致其正常用户无法访问。  \n\n\n\n> 当黑客使用网络上两个或以上被攻陷的电脑作为“僵尸”向特定的目标发动“拒绝服务”式攻击时，称为分布式拒绝服务攻击（distributed denial-of-service attack，缩写：DDoS attack、DDoS）。  \n\n\n\n有人的地方就有江湖，有互联网就有DDoS。**DDoS永远不会消失，它将伴随互联网诞生到毁灭**。区块链同样绕不过这道坎。  \n\n中心化时代，DDoS说是网络攻击的“核武器”也不为过。本质上，所有DDoS解决方案只是缓解，无法根除。\n\n ### 当DDoS遇到去中心化 \n\n 去中心化，从某种程度看，也是缓解DDoS的一种方式。 \n\n 拿bm的第二个作品steem举例：  \n\n> steem是去中心化的底层公链，steemit是steem第一个应用：去中心化的社交媒体平台。 \n\n \n\nsteemit历史上发生多次DDoS攻击，造成steemit官方节点访问异常。去中心化的优势就体现出来了：攻击者DDoS攻击steemit官方节点服务器，但用户依然可以通过切换其他节点访问平台。  \n\n\n\n所以说去中心化，某种程度上，也是缓解DDoS的一种方式。为什么说是“缓解”，而不是“解决”：在去中心化的场景中，DDoS没有被堵住，该被攻击还是被攻击。与中心化场景不同的是，攻击者无法攻陷所有节点使整个系统拒绝服务。 \n\n\n\n ## DDoS EOS？ \n\n未知攻，焉知防。攻击角度可以从三个层面对EOS发起DDoS：EOS区块链系统层、DAPP层、节点层 \n\n\n\n### EOS区块链系统层 \n\n区块链系统层，先看看BTC和ETH是如何考虑DDoS攻击。答案是： \n\n > 手续费 \n\n\n\n试想下，没有手续费，攻击者无限次自己给自己转账，或者部署一个死循环的智能合约，所有节点处理他一个人的交易，资源就会被耗尽，无法处理其他用户交易。这就是典型的“拒绝服务”。 当然，手续费没法解决另外一个问题： \n\n > 某个DAPP过多占用系统资源  \n\n\n\n比如一款火爆的以太猫游戏DAPP就把ETH系统资源都耗尽了。其他交易只能等着，某种意义上，这也是一种拒绝服务（DoS）。  \n\n\n\n要注意，EOS可是号称没有手续费。那EOS设计上是怎么考虑DDoS攻击呢？白皮书上给的答案是：\n\n > 用户所能拥有的带宽资源取决于该用户所拥有的EOS代币  \n\n\n\n比如DAPP拥有1%的EOS代币，DAPP就拥有百分之一的EOS网络带宽。 这个设计解决了上面说的区块链上层某个DAPP过多占用系统资源问题：DAPP拥有多少代币，就只能使用系统多少资源。 \n\n\n\n但似乎没有解决攻击者无限交易问题，用户/攻击者有意或无意触发无限交易行为，仍然可能会耗尽自身代币所占的资源，尽管影响范围有限。 \n\n\n\n 还的看看后续官网怎么解决这个问题。 \n\n ## DAPP应用层 \n\n\n\nEOS免手续费是通过DAPP抵押代币，换取网络资源，使得DAPP上层的用户可以免费使用。 那就要求DAPP开发者要有安全意识，考虑业务层的DDoS，这属于业务层范畴。\n\n\n\n如果开发者没有考虑DAPP业务层DDoS（基本可以断定初期绝大部分项目不会考虑这些安全问题），就可能会出现：  **攻击者通过无限制调地用DAPP业务，来耗尽DAPP背后对应的EOS系统资源，反正对于攻击者来说是免手续费。** \n\n\n\n甚至最坏的情况，攻击者通过攻击链上所有DAPP，耗尽他们的资源，间接攻击EOS区块链系统，拒绝服务。例如下面要讲到的国家级的DDoS。  \n\n\n\n预测这类攻击会变成很常见，DAPP在被攻击时，临时需要更多的资源来抵御。进而我们可以得出以下推论。\n\n\n\n**推论1：** \n\n> 市场必然衍生出EOS租赁服务 \n\n\n\n当DAPP被攻击时，临时租用EOS代币增加资源来抵御，等攻击结束后把代币资源还回去。\n\n\n\n预测还会出现一类商业模式： \n\n > EaaS : EOS-as-a-Service \n\n\n\n普通用户将EOS存到EaaS服务商平台，换取利息。EaaS服务商将EOS抵押并提供临时租赁服务。DAPP用完即走。 想象空间很大，现在还是EOS红利期，有对EaaS感兴趣的可以私聊。 \n\n\n\n ## 节点层  \n\n\n\n作为单个EOS超级节点，跟中心化的思维一样，需要自行抵御DDoS。上面举的steemit例子就是节点层面的DDoS。 \n\n\n\n ### DDoS大都是为了利益 比如 \n\n> - 备用节点为了上位攻击21个超级节点 \n\n> - 两个竞争关系的DAPP，为了搞掉对手相互DDoS \n\n> - …… \n\n\n\n 一切均有可能，只要有利益驱使。规则不能完全杜绝这样的行为，要知道：  \n\n\n\n> **规则是摆在明面上的，而DDoS却是躲在暗处** \n\n\n\n ### DDoS又不一定都是为了利益 \n\n\n\n > 或许未来会出现国家级别的DDoS \n\n\n\n前些天北大学生公开信被存储到以太坊，传播甚广，感兴趣可以自行百度。内容永久保存在互联网，谁都没办法删除，也无法修改。 这个事件很有意思，很值得思考。相信这仅仅是开始。\n\n\n\n区块链不可更改的属性，一旦为误用或恶意利用：非法信息、色情、恐怖、反XX等等不可描述内容出现在区块链。舆情维稳失控，国家层面会采取什么措施？ \n\n > - 技术上屏蔽访问 \n\n> - DDoS攻击节点，暂时性转移视线  \n\n\n\n预测未来会出现国家级的DDoS对EOS发起攻击。请注意，这里说的是各个国家都有可能哦，比如朝鲜，古巴…… \n\n### 成本无底洞  \n\n攻击者用500块钱成本发起的DDoS攻击，防御方可能却要花上5万，50万才能抵御。DDoS防御就是个无底洞。 \n\n从这个角度看，我赞同奶王梓岑的一个观点，不记得原话，大概意思是  \n\n> 大家对节点收益过于乐观，超级节点可能根本不挣钱！\n\n\n\n抗DDoS能力三要素： \n\n > - 设备处理能力 \n\n> - 人员技术能力 \n\n> - 带宽 \n\n\n\n 能同时满足这三点，能抵抗国家级的DDoS，并且有雄厚的资金支撑，只有大型的云服务商。  \n\n\n\n现在有些竞选超级节点者可能过于乐观了，没技术，没人员，买个高配置的VPS就来竞选？不存在的。真正的大佬还在后头，现在普通的竞选者可能只是陪练。  \n\n\n\n**推论2：** \n\n> 随着EOS的发展壮大，未来只有类似亚马逊云、阿里云这样的体量组织或公司才有资格竞争上合格的超级节点 \n\n\n\n或者未来EOS超级节点收购大型云服务商也未可知。对于普通竞选者，现在就考虑EaaS服务或许更有胜算。  \n\n\n\n## 总结 \n\n目前看到的EOS设计在系统层一定范围内抵御DDoS，节点层和DAPP层得自行解决，DDoS依然会发生，形式依然很严峻。  \n\n\n\n## 结论 \n\n- EOS摆脱不了DDoS攻击困扰 \n\n- 市场必然衍生出EOS租赁服务：EaaS,EOS-as-a-Service\n\n- 未来不是随便阿三阿四都可以竞争上超级节点，只有类似亚马逊云、阿里云这样的体量组织或公司才有资格竞争上**合格的超级节点** \n\n- DDoS不是坏事，打不倒会使之更强大，DDoS反而会使得EOS生态越来越健壮 \n\n\n\n ---- \n\n以上为个人思考，不构成投资建议。 \n\n 欢迎关注我的微信公众号： \n\n > 曾老师的黑板报（zenglaoshibanbao）",
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      "title": "EOS避免DDoS？可能你想简单了"
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      "body": "## 暂时性优势\n\n很多文章分析了EOS的优势。例如金马《一千个持有EOS的理由》分享提到的：\n\n> * 足够快的出块速度，能支撑得起大规模商业应用的TPS\n> * 转账免费，更适合互联网大规模应用\n> * 足够多的空投诱惑\n> * 足够有争议吸引关注\n> * 团队足够有钱，投入社区建设，发展生态\n> * ……\n\n这些当然都是优势，没错。但可能忽略了重要一点：\n\n> 暂时性优势\n\n比如TPS，现在EOS可以甩ETH几条街，一款撸猫游戏就可以挤垮ETH。但要注意：这仅仅是暂时性的优势。ETH分片扩容、切换POS算法，不见得TPS会比EOS低。其他公链技术也号称更先进。\n\n## 生态时间窗\nEOS有哪些优势是可以形成壁垒，远远甩开竞争对手的？我的答案是：\n\n\n> **生态时间窗**\n\n\n* **DAPP生态时间窗**\n\n公链是需要上层DAPP生态维持繁荣，而生态形成存在时间窗。时间窗口一旦关闭，对不起，后面没你啥事了。Google的Android在移动互联网很好地把握住了这个时间窗口，微软的Windows mobile起个大早，却没赶上车。\n\n* **EOS技术积累优势，拉大竞争者追赶时间窗**\n\n凭借着bitshares，steem技术落地经验，EOS一脉相承，可以说是其技术的延续和扩展。团队积累的技术经验是极大优势。\n\n看到市面上一些号称公链（不点名），依然采用效率较低的POW共识算法，逻辑上就很难成为底层效率要求更高的公链。ETH都要从POW转POS，ETH走过的坑，还要再走一遍。这类公链饼画得很大，但最好敬而远之。\n\n正如BM所说，\n\n> 其他团队可能都还没有碰到他们已经解决的难题。\n\n难的不是如何解决问题，而且不知道自己将要面对什么难题！相信程序开发者最能体会这句话。\n\n*  **DPOS天然适合社区自治**\n\nEOS采用的DPOS共识算法，升级不需要硬分叉，社区投票解决，更适合社区自治，形成社区生态。\n\nETH升级大概率会导致社区分裂，说不定后面升级还会分裂出ETO(Ethereum Old)、ETU(Ethereum Uncle)等等。任何一次重大升级都可能导致社区分裂，任何一次社区分裂都可能导致错过生态的时间窗口。**这才是致命的！**\n\n## 天时地利人和\n如果说ETH占了天时、人和，那EOS就是占尽了天时地利人和：\n\n**ETH**\n* 天时：区块链2.0概念，开创智能合约先河。\n* 人和：在以太坊上已经形成了一定范围的DAPP生态圈。\n* 但没占到“地利”：POW共识效率低，二三十的TPS，天生效率不高，难支撑大规模商业应用。\n\n**EOS**\n* 天时：bitshares、steem技术积累优势，遥遥领先追赶者。\n* 地利：百万TPS、免费转账、跨链技术、无分叉升级等等，含着金钥匙出生。\n* 人和：主网还没上线，就已经有120多个基于EOS公链的项目。生态圈已初步建立。\n\n\n以上为个人思考，不构成投资建议。\n\n欢迎关注我的微信公众号：\n\n> 曾老师的黑板报（zenglaoshibanbao）",
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      "body": "## 暂时性优势\n很多文章分析了EOS的优势。例如金马《一千个持有EOS的理由》分享提到的：\n\n> * 足够快的出块速度，能支撑得起大规模商业应用的TPS\n> * 转账免费，更适合互联网大规模应用\n> * 足够多的空投诱惑\n> * 足够有争议吸引关注\n> * 团队足够有钱，投入社区建设，发展生态\n> * ……\n\n这些当然都是优势，没错。但可能忽略了重要一点：\n\n> 暂时性优势\n\n比如TPS，现在EOS可以甩ETH几条街，一款撸猫游戏就可以挤垮ETH。但要注意：这仅仅是暂时性的优势。ETH分片扩容、切换POS算法，不见得TPS会比EOS低。其他公链技术也号称更先进。\n\n## 生态时间窗\nEOS有哪些优势是可以形成壁垒，远远甩开竞争对手的？我的答案是：\n\n\n> **生态时间窗**\n\n\n* **DAPP生态时间窗**\n\n公链是需要上层DAPP生态维持繁荣，而生态形成存在时间窗。时间窗口一旦关闭，对不起，后面没你啥事了。Google的Android在移动互联网很好地把握住了这个时间窗口，微软的Windows mobile起个大早，却没赶上车。\n\n* **EOS技术积累优势，拉大竞争者追赶时间窗**\n\n凭借着bitshares，steem技术落地经验，EOS一脉相承，可以说是其技术的延续和扩展。团队积累的技术经验是极大优势。\n\n看到市面上一些号称公链（不点名），依然采用效率较低的POW共识算法，逻辑上就很难成为底层效率要求更高的公链。ETH都要从POW转POS，ETH走过的坑，还要再走一遍。这类公链饼画得很大，但最好敬而远之。\n\n正如BM所说，\n\n> 其他团队可能都还没有碰到他们已经解决的难题。\n\n难的不是如何解决问题，而且不知道自己将要面对什么难题！相信程序开发者最能体会这句话。\n\n*  **DPOS天然适合社区自治**\n\nEOS采用的DPOS共识算法，升级不需要硬分叉，社区投票解决，更适合社区自治，形成社区生态。\n\nETH升级大概率会导致社区分裂，说不定后面升级还会分裂出ETO(Ethereum Old)、ETU(Ethereum Uncle)等等。任何一次重大升级都可能导致社区分裂，任何一次社区分裂都可能导致错过生态的时间窗口。**这才是致命的！**\n\n## 天时地利人和\n如果说ETH占了天时、人和，那EOS就是占尽了天时地利人和：\n\n**ETH**\n* 天时：区块链2.0概念，开创智能合约先河。\n* 人和：在以太坊上已经形成了一定范围的DAPP生态圈。\n* 但没占到“地利”：POW共识效率低，二三十的TPS，天生效率不高，难支撑大规模商业应用。\n\n**EOS**\n* 天时：bitshares、steem技术积累优势，遥遥领先追赶者。\n* 地利：百万TPS、免费转账、跨链技术、无分叉升级等等，含着金钥匙出生。\n* 人和：主网还没上线，就已经有120多个基于EOS公链的项目。生态圈已初步建立。\n\n\n以上为个人思考，不构成投资建议。\n\n欢迎关注我的微信公众号：\n\n> 曾老师的黑板报（zenglaoshibanbao）",
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