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      "body": "https://steemitimages.com/DQmVDHJ4UFJG7vCcejxEX5fQpdvNTDZpCpfNLi2BBBqcEZM/wallet-669458_1920.jpg\n\n投入1.7万，如果1年9个月可赚11.48万，这样的回报会让你动心吗？<br>\n<strong>投资有风险 &nbsp;购机需谨慎</strong></ins><br>\n<strong>一、&nbsp;一个很好的赚钱机会，你居然不知道！</strong></p>\n<blockquote>2017年6月24日，Sia发布官方消息：“将于美国东部时间美国东部时间（EST）2017年6月28日开启专业ASIC矿机预售，预售期7天，发货时间12个月（可能缩短至9个月）”</blockquote>\n<p>这个消息，就像往大海里面投了一颗小石子——没有引起任何关注。事实也是如此：预售期结束共确认1130台订单，低于Sia预期。<br>\n一台不能吃，不能喝，不能用来玩游戏甚至都不用显示器的“矿机”，<strong>售价2499美元/台</strong>，折合人民币约17000元/台。对于不了解“数字货币”、“挖矿”的同学一台矿机相当于一台高端Macbook Pro价格！’对于比特币矿工它相当于2台小蚁比特币专业矿机价钱！对于了解Sia币（即sc）的GPU矿机工，虽然比高端GPU矿机低一些， 可sc的价格才一毛钱甚至几分钱一个，在挖币的圈子里是绝对的“小币”，GPU矿工是在挖以太币这种单币价格上千元的“大币”时候顺带着挖点sc（有专门的“双挖”程序）——帮矿工挣点电费的角色。\n所以，绝大多数人看到这条消息的反应是——直接忽略！<br>\n\n可是，有时候：<strong>直接忽略=错过</strong><br>\nhttps://steemitimages.com/DQmPj9pRH1JGfvatcPRAG6GdPK9tUHjDsLnvcc6tp4tDQay/no-money-2070384_1280.jpg\n\n下面重点来了啊，请只字不差阅读。\n<strong>二、&nbsp;一算吓一跳</strong>\n挖币收益=挖币数量*实时币价-电费总额-矿机成本\n<strong>1、 收益</strong>Sia官方给出每台矿机每月挖：15万个sc。<strong>假设①：一年后sc价格0.1元/个</strong></ins>，1台矿机正常运行每月可获利1.5万元！矿机寿命与芯片迭代周期同步，每一代专业矿机寿命6-12个月，<strong>假设②：寿命9个月</strong></ins>，一共可获得135万sc，9个月毛利润13.5万元。矿机功耗500W，电费按0.5元市电价格计算，电费总计：3240元。<strong>纯利润：11.48万元</strong>，折合年投资回报率：386%\n<strong>也就是：现在投入1.7万元，前12个月没有收益，第13个月基本回本，1年零9个月能够取得6倍的净收益。</strong>\n传统投资渠道：理财，股票，房产，收益率大致如下：</p>\n<blockquote>银行理财产品年化收益4%-5%左右，一般5万起；股票，先呵呵一下吧。据统计2016年7成股民赔5万，技术好的同学30%收益没问题。房产，商铺的投资年收益率12%-15%，回本周期长，前提是你得出的起全款或首付款。</blockquote>\n<p>相比之下，Sia矿机简直是。。。太TM灵活了！钱少，买1台放家里，一年后每月家用开销就有了；钱多，买10台，没准2年后一不小心成百万富翁了呢。。。\n\n<strong>2、&nbsp;变量\n注意！一定注意！！</strong>官方保证的是单机每月获得sc数量，<strong>而个人实际收益由矿机寿命和个人出售sc时市场价格决定</strong>！！保守的投资者，可以按矿机使用6个月自行重新计算收益情况。上面假设按sc价格0.1元计算，如果按照近期价格0.05-0.06元计算，<strong>收益立马减半</strong>。同样，按今年6月份sc最高0.18元/个，<strong>收益又几乎翻倍</strong>。（万一，一年后sc5毛钱一个了呢？那就自己偷笑吧…）\n![stock-exchange-913982_1920.jpg](https://steemitimages.com/DQmViCcW3L2pXyd8nKARXE23yjbT1boDQheF7Lg8X5tp2Ep/stock-exchange-913982_1920.jpg)\n<strong>\n三、&nbsp;风险提示</strong>\n<strong>投资就会有风险，高收益也意味着承受高风险</strong>，风险列举（包含但不限于）：</p>\n<blockquote>1、&nbsp;矿机开发过程中出现问题，不能按时发货；2、&nbsp;各种可能原因造成的一年后sc价格低，挖到的sc不值钱；3、&nbsp;各种可能原因造成的Sia全网算力增加，专业矿机每月挖币低于15万sc预期；4、&nbsp;Sia公司一年以后倒闭；</blockquote>\n<p>对以上几种风险的判断和对策：\n\n1、&nbsp;Sia请的是美国半导体生产商设计生产，该生产商有专业矿机芯片生产经验——这一点很重要；Sia在预售开始前就已经开始了芯片设计、矿机设计和供应商选择工作。所以，交货期不太容易出现问题。\n2、&nbsp;价格由市场决定，谁也不能打包票。但区块链技术长期看好，价格低就留着等价格高再卖出；\n3、&nbsp;由于sc的价格和主要币种相比低的可以忽略，GPU矿机专门过来挖sc的回报太低：算力低，耗电高——不挣钱的事谁会干去呢？所以，一是Sia全网算力突然大幅增加的可能性非常小，二是<strong>前几天芯片测试结果：算力250Gh/s</strong>，比预期100Gh/s提升2.5倍，意味着4000台上线后专业矿机算力达到1000G，是现在GPU矿机算力的3倍，专业矿机对GPU矿机绝对的“挤出”效应。另外以Sia开发团队一贯的负责态度看，真的出现了他们应该会想办法弥补。\n4、&nbsp;Sia的设计基于区块链技术的分布式存储，核心理念是不受中心节点失败影响，托管主机分布4个大洲，150多个国家，能够保证战争、自然灾害等极端条件下存储数据不丢失，系统可以自运行即使Sia公司倒闭，不影响Sia系统数据存储、主机奖励、区块挖掘等活动。<br>\n四、&nbsp;结论：<strong>Sia这简直是给这批专业矿机支持者捡钱的机会啊！\n</strong>截止发稿时，售出数量1350台\n![Sia预售情况17年07月21日2135_1.png](https://steemitimages.com/DQmbP7JRSb3NvevNQ1ErCKrp8CMsBJBNdB3JxrBEyiXrVnx/Sia%E9%A2%84%E5%94%AE%E6%83%85%E5%86%B517%E5%B9%B407%E6%9C%8821%E6%97%A52135_1.png)<br>\n<strong>重要提示：本文对Sia专业ASIC矿机的收益预测是基于对算力供应、市场价格等因素</strong><strong>假设后的预估值</strong></ins><strong>，不能作为投资或购买的依据。潜在风险请自行考虑并自行承担投资失利后果。</strong><br>\n<strong>Sia  官网&nbsp;https://sia.tech/\n<strong>Obelisk &nbsp;&nbsp;</strong>官网 https://obelisk.tech/<br>\n<strong>下一篇：《Sia全英文网页购机攻略》</strong>&nbsp;</p>",
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      "body": "Sia这只蝴蝶，扇动了一下翅膀，它的忧虑将引起多个币种连锁反应！\n\n\n\n![自家矿机001.jpg](https://steemitimages.com/DQmVH8dACuRqUr2te3cexXeXDuZqLLDx9PHTVLRq7xmaFjf/%E8%87%AA%E5%AE%B6%E7%9F%BF%E6%9C%BA001.jpg)\nGPU NVIDIA GTX 6显卡矿机\n\n\n一、什么是GPU矿机？\n   矿机，就是一台普通计算机，它们的区别在于：矿机针对加密数字货币特殊的算法要求在计算能力表现突出——说白了就是适合用来“挖”加密数字货币这些“矿”的。目前，矿机分为专业矿机ASIC和GPU矿机。专业矿机，针对某个币种的特定算法优化芯片，只能用来挖掘单一加密数字货币，比如蚂蚁矿机只能用来挖比特币，而不能挖以太币、莱特币等等。GPU矿机，挖矿能力是靠搭载的显卡来进行挖矿，原来进行图形处理的芯片用作非常复杂的数学运算，不同挖矿程序驱动显卡挖不同的币/矿。通常一台GPU矿机搭载6个以上高性能显卡，GPU矿机不能用来挖比特币，它们能挖比特币以外的绝大多数币种，如以太币、Zcash和sia币等。而由于比特币的价格远高于其他币种，早就有公司研发出比特币专门矿机，但其他币种Sia是开发专业矿机的团队。\n\n\n![Siacoin-Obelisk-SC1-800.jpg](https://steemitimages.com/DQmRARXcvRemprd1JWis9WuHpYSodi1Ysgo6kVjyCuwnFms/Siacoin-Obelisk-SC1-800.jpg)\nObelisk公司为Sia设计的专用芯片\n\n二、GPU矿机有哪些优势？\n   1、门槛低——GPU挖矿对除显卡外对计算机性能要求不高，有稳定电源和网络即可开始挖矿活动。如果你的家用电脑有高性能玩游戏的显卡也可以上线挖矿挣点零花钱；\n   2、保值——专业矿机除了挖矿什么也干不了，拥有专业矿机就只能把它用到报废。而GPU矿机的显卡是游戏发烧级别，收益不合理时可以随时停止挖矿在二手市场把显卡卖个好价钱来避免损失。\n   3、收益固定——因为各个币种的价格高低不定，GPU矿机可以在多个币种之间自由切换，选择高收益币种挖币，能够保证每天的收益。而专业矿机的收益跟一个币的价格绑定，价格上涨收益增加，反之就会减少。\n所以，对于个人矿工或资金量不大的投资者，GPU矿机是最好的选择。\n\n \n\n三、为什么ASIC专业矿机能成事？\n   Sia矿机制造商Obelisk公司提供的ASIC一代产品，单台算力100Gh/s，具体指标如下： \n\n![Obelisk-Sia-800.png](https://steemitimages.com/DQmaCnpHhJcjGxkHvhZbFvwxDe1wZi4XeSVnnDgRuWZZvuf/Obelisk-Sia-800.png)\n\n而根据Sia团队最新消息：测试中的GPU芯片已经达到250Gh/s的算力。\n\n结论1：无论从采购成本，还是生产成本，ASIC矿机优势明显且巨大！\n\n影响一：Sia全网算力成倍增加\n   Sia这次动作没有引起太多矿工的注意，他们认为厂家是靠买矿机来增加盈利，预售是在降低自身风险和以销定产的销售策略——事实并非这么简单。虽然是预售模式，但由于芯片研发和生产过程的特殊性，一代矿机的研发成本高达几百万甚至上千万美元，所以生产商不会仅仅根据预售情况制定一批矿机产量。\n   以Sia为例，官方纳入考虑的综合考虑的因素会是：研发成本、算力供应－避免造成现有GPU矿工不满而发起51攻击、算力分配——避免已经出现在比特币、以太坊上的中心化矿池——将来核心决策上给发展带来的阻力、成本回收和产品迭代速度——避免潜在竞争对手进行产品研发或者直接开发下一代产品——造成算力集中或51攻击对网络的打击。\n   所以，这次发售的ASIC一代矿机出货4000台。为了保护预售期买家的利益，Sia官方已经做出承诺：\n   预售期内的买家会独享42天算力。\n\n影响二：Sia网络内GPU矿机将逐渐淡出\n   GPU矿机拥有者有哪些？专业矿工（主要），分布式存储的支持者或爱好者，有闲置GPU算力资源的拥有者（比如，设计师或数据中心）。目前，Sia全网算力都由GPU矿机提供，约为300Th/s。如果这4000台ASIC矿机部署完成，将增加400Th/s算力。按部署完成之前，GPU算力增加到400Th/s，部署完成后全网总算力800Th/s。不考虑价格因素，GPU矿机的盈利能力将下降50%。显然，这样的盈利水平不会被矿工接受——他们会把掌握的算力切换到盈利能力更好的币种上！\n\n结论2：以后Sia网络将由ASIC专业矿机来支撑！\n\n![Lab-on-a-chip-800.jpg](https://steemitimages.com/DQmTXSFFdeoPUNfFfJBc1J4dkhDArVppk2iScv6Mein6EBx/Lab-on-a-chip-800.jpg)\n实验室芯片制作 \n(From：https://commons.wikimedia.org/wiki/File:Lab-on-a-chip;_Micro_Microwave_(5940485235).jpg\n\n四、这些都是冰山一角？\n\n   1、Sia的现状\n   对于目前GPU矿机挖矿的局面，Sia的运营者有着深深的忧虑。目前市场上只有比特币开采拥有专业ASIC矿机，而siacoin在内的其它币种都依靠GPU矿机挖矿。\n   这些加密数字货币其实是在共享或者准确的说在争夺GPU矿机的算力。正是由于GPU矿机的灵活性——只要安装对应挖矿程序，这些GPU矿机可以在任何币种之间切换——哪家挣得多就去那家挖矿。如果，有人愿意出更多的钱购买算力，矿工是不会计较这些算力被用去干什么的。Sia作为一个币种，如果挖掘以太币的矿机切换一定算力过来，就可以轻松对Sia网络进行51攻击；如果Sia币的价格走低，矿工收益在一定时期内低于挖矿平均收益，那么Sia网络的算力就会流向其它加密数字货币，这同样会对整个Sia网络造成很大影响。\n\n   2、矿工的考虑\n   当然是赚钱！！掌握着全部算力矿工，只会考虑投资回报率（ROI）：尽可能低的采购成本，不断寻找价格低廉的电力供应，规模化生产降低维护成本，计算好今天挖什么矿更赚钱。\n\n   3、Sia行动源自GPU“不忠诚”的自然属性\n   推出专业矿机的目的是把矿工利益和社区利益绑定在一起的。Obelisk发布的专业矿机只能用于siacoin的挖掘，不然就是废铁一堆。对于投入了十几万、几十万元的矿工会把机器闲置？不，他们一定会上线挖矿的。不管币价如何变化——除非收益低的连电费都抵消不了。\n   对于Sia网络来说，这部分算力绝对忠诚。发售专业矿机等同于上线稳定的算力来支撑整个Sia网络的运行，发售数量越多网络越稳定，受到的潜在威胁可能越小。所以，在第一批矿机部署数量上，上线算力一定是考虑到现有矿工抵触情绪和潜在51攻击风险的。根据现有300Th/s的算力和合理算力增长，把网络内忠诚算力部署至P级算力势在必行。 \n\n五、Sia这只蝴蝶，扇动了一下翅膀\n   Sia策略背后的逻辑将引起的类似加密数字货币社区的对自身系统安全的重视。目前，GPU矿机可以挖掘的币种多大39种。Sia的现状就是大家共同的现状，Sia的担忧未来必将是大家的担忧。这些明显的系统性风险说不定哪天就会被人利用——这个世界里永远不缺伺机而动的顶尖黑客，而一旦漏洞被抓住对任何一个币种来说都可能是致命的！导致以太坊分叉的著名的“DAO事件”也仅仅发生在半年多前。\n因此，各个加密货币社区会将研发专门矿机提上日程。这意味着只针对一种加密数字货币的专业矿机将不断诞生和被广泛部署。\n   所以，表面上是专业矿机的发售，实质上是矿工、矿池以及Sia运营者之间的博弈，其中参杂着利益、人性等多重因素。 \n\n未来已来\n   在功能币挖矿领域，专业矿机的步伐不可阻挡，最终会占据加密数字货币算力提供的主导地位——GPU矿机终将退出历史舞台。一方面，作为GPU矿机持有者该做何计划来应对变化，将是在未来2年内困扰矿工的大问题。另一方面，随着加密数字货币行业的蓬勃发展，专业矿机的芯片需求会不断释放，这对于全球芯片制造商来说是一个利好消息。但不管怎么说，这一趋势一旦开始，将不可逆转！\n\n\n![Shadow_Person-800.jpg](https://steemitimages.com/DQmSsoLyKR1qYXVejjDENPKmEYwiNWDpLjQYdHNWbzmiLpN/Shadow_Person-800.jpg)\nHere Comes The Future",
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