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      "body": "进入四月份，利好不断，相应地，未平仓合约持仓量也创下历史新高，币安交易所的币一度被借空，泰达数次印钞超过几十亿美元。\n\ncoinbase上市前后，乐观情绪达到顶峰。所谓“乐极生悲，物极必反。”\n\n4月16日晚，比特币试探60000一线，随后拉回至63000一线，隔天，再次跌至60000附近。\n\n4月18日上午，半小时内，一根大阴线，直跌近万点，季度合约更是插针到近45000，创造了史上最大的日爆仓额，超过70亿美金。\n\n![1619066315(1).jpg](https://cdn.steemitimages.com/DQmcRt849uei5evJFX4eZampnFrZSyXCm9y2MQzTYNDbEST/1619066315(1).jpg)\n\n市场一片哀嚎，维权群又一次被拉起来了，可除了带着哭腔的比惨，又有什么实质性作用呢？纵观历史，哪一次大爆仓交易所对散户负责了？\n\n利空消息也在下跌的过程中不断放出，什么土耳其封禁，美国sec监管，在链王看来都是配合出货的说辞而已，也给了爆仓者安慰自己的理由。\n\n人脑有个毛病，就是凡事都得找个理由。特别是令自己痛苦的事情，如果不能找一个外部的理由，就没法转嫁自己的痛苦。这一点从人们是小孩子的时候就是这样了。一个小孩子刚刚学会走路，“咣”地撞到了桌角，哇哇大哭。大人过来，肯定不是说，大宝你听着，桌子并没有动，全是因为你目前走路还不稳定，所以才撞到桌子的。\n\n![cry.jpg](https://cdn.steemitimages.com/DQmVMpRrRBii3tNBqhKoAkJgk6ZoHhZQJyp34ZUmFXAK4ZL/cry.jpg)\n\n很多大人会做出一个有趣的动作，就是当着小孩子的面去假意敲打桌子，一边打一边说，“让你把我们大宝给撞疼了！”孩子看到大人打桌子，听到大人呵斥桌子，心里的委屈就化解了。\n\n在链王看来，市场的崩溃、回调、洗盘，在基本面没出现大问题的情况下，外部的消息充其量只是导火索。因为这个市场本来就是高度动态和不稳定的，多空力量的蓄积本身就会成为市场内爆的原因。\n\n场内的投资性资金是无法推动市场长期上涨的，快速的拉升并不能确认市场的趋势，只有剧烈的回调和洗盘，才能看出来究竟是假突破还是真趋势。\n\n若多头杠杆聚集，市场绝不会贸然向上，让多头白占便宜。\n\n它一定会在某个时刻，冷不丁的杀个回马枪，去掉沉重的杠杆。\n\n至于这一波是否已将多头剿灭？看未平仓合约持仓量已经下降到三月份水平，是否还会继续回调。链王认为回调仍未完成，4开头的比特币时日不远。\n\n不构成投资建议。",
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      "body": "日线级别，各周期均线转线下行，但是布林带并没有打开这次空头的空间，整体情况有所回暖，KDJ也处在超卖区，目前价格在5日线附近运行，所以当前反弹的一线压制在57900-58000附近，看反弹的关注这个位置\n\n![4211.png](https://cdn.steemitimages.com/DQmas9qbXUu53TF1gkZAgLjMJG5kh8McZLnh6JA4QEkFjre/4211.png)\n\n4小时级别看，布林带收口，价格在中轨附近，上攻节奏既然被打断那么就不要盲目去追涨了，行情整体修复的话还是要回踩一下的，多方势力逐渐转强，但目前行情并未走出破位，可见短期走势还是没有脱离震荡，所以当前操作以回踩看多思路为主，空头辅助。\n\n【操作建议】\n57500附近开回踩空，目标54000-54500区域\n\n回踩53000介入多单，目标57900-58000一线\n\n所谓稳中求胜，就是严格控制操作的点位和仓位，只做顺势的思路，宁可错过，也不可轻易犯错。交易就应该严谨，不可侥幸碰运气，共勉。",
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      "title": "Fei爆火，其联合创始人Brianna Montgomery提示投资风险",
      "body": "FEI是一种高度可扩展、去中心化并有储备支持的稳定币，它旨在满足DeFi的需求，而无需依赖中心化的资产抵押品。而对于即将到来的Fei Protocol创始阶段，我们希望社区能够在完全熟悉该协议工作方式及相关风险的情况下再决定是否参与。\n\n1、直接激励措施\nFei协议使用的是直接激励措施来惩罚偏离锚定价的交易，并奖励向锚定价靠拢的交易，这导致的结果就是通货紧缩，因而有助于调整FEI的供应。\n\n![441.jpg](https://cdn.steemitimages.com/DQmaqUiAKDYc1vHKWUA3vs8zcPvq4jmTQvHAntR8bVp5TY7/441.jpg)\n\n直接激励是DeFi的一种新模式，是你必须要深入理解的强大而神奇的工具。例如，Uniswap的界面可能会显示：出售FEI的价格为0.98美元，但由于这一价格偏离了锚定汇率，因此在这个时候卖掉FEI会额外燃烧掉4%的FEI稳定币，那么成交后的实际价格就变为了0.94美元。注意，用户无法通过Uniswap界面查看燃烧的量，但在执行交易时，燃烧的部分会被视为滑点，因此，Uniswap的滑点参数设置可间接防止意外的大比例燃烧。一旦协议上线，参与者就可通过访问Fei协议应用的交易界面‌，以确定可能对他们的交易造成的任何燃烧或奖励情况。\n\n我们建议参与者使用Fei协议应用在ETH-FEI资产对之间进行交易，以查看激励金额。\n\n注意，燃烧惩罚可能会相当严重，当Fei价格偏离锚定价10%的时候，卖掉Fei会导致高达100%的燃烧比例，这意味着，如果你要在高抛压期间快速卖掉FEI，你可能会遭受严重的燃烧惩罚，FEI的稳定机制目的是鼓励长期持有。\n\n其他方面，直接激励措施仅适用于特定的Uniswap ETH-FEI交易对，所有其他交易所的交易对和转移行为都表现为正常行为。\n\n2、抵押品风险\n在启动时，Fei协议将仅使用ETH作为储备货币，采用这一设计决策的原因在于Fei协议的去中心化核心宗旨，然而，ETH价格的波动可能会导致不良的抵押比率。\n\n白皮书‌讨论了抵押品比率因抛售压力而持续提高或降低的条件。简而言之，如果需求下降的速度快于直接激励所捕获的燃烧量，Fei协议将在这段时间内减少抵押。通过使用协议控制价值（PCV）购买和燃烧FEI，Reweights将介入恢复Fei的价格。在遭遇严重的危机时，Fei DAO可能需要介入，通过铸造TRIBE代币燃烧FEI并进行资本重组来恢复健康的抵押比率。\n\n“如果ETH的价值大幅快速下跌，该系统可能难以正常运行。”如果遇到这种情况，Fei DAO 可以采取措施，通过接入DAI和RAI等稳定去中心化资产的联合曲线，使得PCV多样化。此外，Fei协议还可通过Yearn和借贷市场投资产生收益的机会，从而产生额外的抵押缓冲。\n\n3、合约风险\nOpenZeppelin已对Fei协议完成了一轮12人周的审计（OpenZeppelin审计报告‌），报告中提到称发现了5个严重问题和3个高危问题，而Fei Labs官方表示对此已完成了修复。\n\n此外，ConsenSys Diligence还对Fei协议的关键合约部件进行了二次审计。\n\n![442.jpg](https://cdn.steemitimages.com/DQmQfRMKELoH1s4znxKByyHdTWk8MKe6UtkKuekFAZweQqi/442.jpg)\n\n根据Fei Labs表示，该团队在接到审计报告后已对协议进行了一些更改，这些变化包括从Fei核心开发团队编写的staking合约，转换为经实战检验的Synthetix StakingRewards合约，实施的更改对于协议的简单性与安全性很重要，这些更改被认为风险相对较低，但仍由独立的安全工程师进行审查。\n\n尽管如此，审计并不能保证代码没有任何错误和漏洞，Fei Labs官方表示会提供高达一百万美元的漏洞赏金，用于激励白帽提交漏洞报告。\n\n而在出现严重漏洞报告的情况下，守护者（Guardian）可暂停任何没有时间锁定的风险合约，暂停后，任何修复和功能更改都必须由DAO表决并批准。在成功启动和协议稳定之后的几个月，守护者（Guardian）将过渡为社区持有的多重签名钱包。",
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      "parent_permlink": "taxa",
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      "permlink": "taxa-network-web3",
      "title": "TAXA NETWORK项目分析:构建交互式WEB3应用的杀手级架构",
      "body": "![taxa.jfif](https://cdn.steemitimages.com/DQmXj8aHMhsVk2KHe3T3SF6aNFQDMspVxrUk2z65JwBFcfu/taxa.jfif)\n\n当前状况：\n\n1）以太坊急剧飙升的GAS价格让很多人无法参与到以太坊网络中；\n\n2）区块链共识机制无论是用户参与还是项目方经营都需要更高的成本；\n\n3）安全对于大多数项目方而言，安全远远排在增长之后。\n\nTaxa Network\n\nTaxa Network是使用可信硬件解决公链和DApp性能和隐私痛点的Layer2链下网络项目，跟公链及去中心化存储等进行合作，Taxa Network专注执行去中心化的业务逻辑，它本身不包含帐本，Taxa Network 只是起到一个入口或者桥梁的作用。\n\nTaxa 分层设计，面向用户的客户端，Taxa 负责的逻辑层，及后面的数据层。\n\nTaxa 节点的设计，采用了基于硬件的可信计算节点，每个节点里面都运行了这样一个可行硬件，并且通过经济激励来鼓励大家把这个去中心化网络建设起来。\n\nTaxa 可信服务-tService\n\nTaxa tService 是在 Taxa Network 链下执行的智能合约，比起链上智能合约，tService 更接近于传统意义的“服务端应用”类似于公链上的智能合约，tService是可信任的。 这意味着tService具有以下两个属性：\n\n1）保证该节点执行确切的代码。\n\n2）保证该节点返回正确的结果而不会被篡改。\n\nTaxa优势：\n\n1）数据隐私：\n\nTaxa Network基于可信执行环境（TEE）技术，通过建立一个硬件层面完全封闭的环境，来确保执行流程的保密及不可干扰，有效解决了区块链的隐私计算问题。在执行代码的同时，保证了用户的数据隐私。\n\n这种技术可创造出硬件层面隔离的执行环境，不需要依赖区块链共识机制，也可保证合约的执行安全。此外，Taxa还加入“attestation协议”的流程，确保用户是在和一个可信环境而不是模拟器在通信，以及可信环境中运行的是用户想要的代码。\n\n2）在Web3.0上搭建去信任化服务\n\n在对未来Web3.0的设想中，现在已经有了独立的去中心化价值网络和经济系统，有了去中心化的存储和内容发放。然而，还缺了重要一环，即Dynamic service application (动态服务应用)。这曾是互联网能够爆发的基础之一，也是Taxa Network在去中心化世界的vision和目标。\n\n如果说IPFS为Web3.0的技术架构实现了静态内容的分发，Taxa Network则是致力于成为区块链架构中的通用逻辑层，实现Web3的动态服务应用。从而更好的助力去中心化技术的落地，以及Web 3.0中杀手级应用的开发和成长。\n\n3）高性能\n\n运行在链外Taxa网络上的服务应用程序tServices，执行web3应用程序的隐私保护，高性能业务逻辑，同时还促进与第1层区块链有关不变，持久状态的通信。\n\n服务是在受信任的执行环境（TEE）中执行的，可保护应用程序的私有数据免受外部攻击者和节点操作员的侵害。与链上智能合约相比，tService提供了显着更多的计算和存储资源。。\n\n4）高度可开发性\n\nTaxa Network在Pyxa（Python + Taxa）管辖内，也就是Python解释器连接基于硬件的集成的服务框架的TEE中。 与第1层智能合约的局限性相比，Pyxa为开发人员提供了Python丰富的第三方库支持，从而实现了诸如数学建模，密码学和区块链通信之类的增强用例。\n\n5）CertiK审计\n\nTaxa通证和TaxaLockFoundation 智能合约在2020年2月10日已通过知名的CertiK审计。\n\n6）Taxa通证\n\nTaxa通证（TXT）将于2021年启动，作为Taxa Network的价值单位，TXT在启动时为ERC-20代币。 可以在以下情况下使用它：\n\na.  为节点运营商使用tService /挖矿奖励的矿工费；\n\nb.  tService的价值转移媒介，在不同区块链上的dApp上充当通证。\n\n\n项目进度\n\n目前，Taxa Network修复了SDK在Ubuntu16-18版本的兼容性问题，发布了0.2版（Github），包含新的Pyxa库的测试范例和bug修复。在几个关键项目上部署了CI/CD流水线，实现内部开发的自动化的编译／测试。并将新的CI/CD架构移植到了支持SGX的微软Azure云平台（Azure DevOps）。\n\n此外，Taxa即将启动开发者激励计划，吸引更多有热情的开发者加入Taxa开发者社区。开发者通过在Taxa平台使用保护数据隐私的、高性能、易开发的Taxa tServices开发应用，赢得奖励。\n\n总结\n\nTaxa Network致⼒于成为去中⼼化交易服务的基础层，将会对资产交易和价值产⽣深刻影响。Taxa Network带来的好处包括：解决了链下订单管理与链上结合而产生的安全问题；Taxa Network和订单分享带来了更⼤的流动性；提⾼了⽹络效率和终端⽤户体验；在管理订单表和⼴播订单时的⽹络灵活性更强。",
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      "title": "Layer 2 即将爆发【这些未发币项目值得关注】",
      "body": "在以太坊生态系统中，目前最大的挑战就是低吞吐量和高gas费以及延迟这几个问题。但以太坊2.0进展缓慢，在这段空档期，早前提出的Layer2解决方案发展迅猛。\n\n![l2.jpg](https://cdn.steemitimages.com/DQmYof9H2fjkkyiWqtEL9ijUSjDvEQZvc626D3u7QyGsVuk/l2.jpg)\n\nOptimism\n\nOptimism是一个OR实现，在一些DeFi大玩家中获得了早期的吸引力，比如Synthetix、Uniswap等。Optimism已经构建了OVM，这是一个基于L2的EVM，它使得项目可以在L2上享受以太坊的L1智能合约的所有好处。为了确保整个社区能协调上线，让基础项目、基础设施提供方、出块方、钱包、代币桥等有时间进行集成，Optimism将延迟公共主网上线时间，预计在今年7月份上线。\n\n不过，Optimism公共主网延期大概率不会影响Synthetix和Uniswap v3的L2推进。\n\nzkSync\n\nzkSync由MatterLabs创建，是一个基于ZK Rollup的Layer2扩容解决方案，使用零知识证明提供高吞吐量和高安全性。据称，zkSync可实现每秒2000个交易的最大吞吐量，平均交易费用约为0.001美元。\n\n北京时间3月30日凌晨向用户发邮件，更新zkSync 2.0的路线图以及时间线。根据zkSync2.0路线图，预计将于5月份上线zkSync2.0公开测试网，8月份上线主网。此外，zkSync 1.x将很快支持NFT的原生铸造，传输和原子交换，并具有zkRollup的完全安全保证。\n\n目前，已经集成了zkSync的项目项目包括分布式计算平台Golem、去中心化存储网络Storj等。\n\n注意，zkSync与ZK Swap无关哦。\n\nStarkWare （StarkNet）\n\n零知识证明研究机构StarkWare 在1月底表示将为以太坊研发基于ZK Rollup概念的Layer2扩容网络，取名为 StarkNet，并同时公开了详细的路线图，将以四步走的方式逐渐实现去中心化并完善应用生态。\n\n其实 StarkWare 之前已经推出过完整的Layer 2解决方案Volition （Validium），并与多个机构合作推出专门用于交易所场景的StarkEx技术，dYdX、DeversiFi和Immutable是其合作伙伴。\n\ndYdX\n\n作为去中心化交易平台，dYdX的成绩自不必多说。\n\n自上线后，dYdX用320天完成了第一个10亿美元交易量积累，用124天的时间完成第二个10亿美元的交易量积累。而第三个10亿美元交易量的提升仅用了46天。\n\ndYdX 是少数坚持使用订单簿模式的去中心化交易所之一，采用链下订单簿和链上结算的交易方式，也是运营了数年的 DeFi 协议中少有的还没有推出治理代币的项目。\n\n如今，dYdX又搭上了Layer 2的快车。目前，dYdX已上线StarkEx内测版，可降低交易费、支持更高杠杆率。\n\nxDai Chain\n\nxDai Chain是一个基于EVM的侧链，它的设计目的是以一种极其快速和稳定的方式促进交易。该项目由其质押代币支撑，共识提供者质押代码，以确保侧链的安全。由于其效率高，xDai Chain在最近几周越来越受欢迎。\n\nxDai使用PoS共识创建了侧链xDai Stable Chain，该侧链提供5秒的区块确认以及每笔0.01美金的超低额手续费。Token Bridge是xDai的资产跨链协议，通过在以太坊上创建多签智能合约对资产进行锁定。资产释放的时，多签者们通过侧链上的交易信息进行签名。\n\n目前，xDai已被多个项目使用，诸如，DeFi项目Honeyswap、NFT项目Nifty.Ink等。\n\n如今，各式各样的Layer 2解决方案已经逐步形成，在可以预见的未来，围绕以太坊的扩容的各类新项目很可能会爆发式增长。",
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