大家好! 欢迎订阅PAI新闻第三版，希望你会喜欢我们的PAI周报。如果您有任何建议，欢迎来信。PAI论坛是连接团队和其他PAI币爱好者的最佳平台。如果您还没有注册，快查看PAI论坛教程注册。
本周，我们很高兴向您介绍并启动PAI币混合共识机制的计划表。如果您对PAI混合共识不熟悉，可以查看PAI混合共识机制阅读具体说明。
PAI 混合共识: 计划表
阶段 1: 核心技术开发
目标是什么？第一阶段的目标是成功实施PAI币提出的混合工作量证明/权益证明（Hybrid PoW / PoS）共识机制的核心技术。您可以在此处阅读所建议方法的技术细节:
https://arxiv.org/pdf/1902.02469.pdf
需要什么样的技术？
主要是软件开发。
结果是什么？
第1阶段完成后，Project PAI可以在GitHub上提供一个稳定的，可投入生产的开发PAI币核心的代码库，该代码库将基于混合工作量证明/权益证明（Hybrid PoW / PoS）。实际上，该代码在工作进行时就可以使用。
代码库请查看：
https://github.com/projectpai/paicoin/tree/hybrid-…
什么时候完成？
计划于2020年5月完成。
阶段 2: 进行测试
目标是什么？
阶段2会有以下几个目标：
1. 规划和模拟从现有PoW协议切换到混合工作量证明/权益证明（Hybrid PoW / PoS）协议所需的区块链分支（请参见阶段4）
2. 全面测试阶段1中完成的工作
3. 为阶段3计划的工作开发和测试打下基础。
4. 获得用户有关混合协议的反馈。
需要做的工作？
阶段2将涉及多种工作，例如系统管理、质量保证、测试、调试、协调和市场营销等。
结果是什么？
当阶段2完成时，使用混合工作量证明/权益证明（Hybrid PoW / PoS）协议的PAI币公开测试版本将完全可用。PAI项目将部署地理上分散的种子节点，矿工和权益，便于形成任何人都可以参与的模拟P2P网络。
什么时候完成？
计划于2020年6月完成。
阶段 3: 从属服务转换
目标是什么？
PAI生态系统包括一系列以PAI币为主导的应用程序，比如：
●PAI 区块浏览器 (https://paichain.info)
●PAI Up 移动钱包
●PAI Up 网络钱包
●PAI Coin Pool
●PAI Pass
阶段3的目标是使用工作量证明（PoW）/权益证明（PoS）混合协议更新和测试这类应用程序与PAI币的兼容性。
需要做的工作？
与阶段1类似，阶段3主要也是软件开发工作，但会涉及范围更广的编程语言和其相互关联。
结果是什么？
当阶段3完成后，我们将更新以PAI币为主导的应用程序和相关服务（例如前面列出的应用程序和服务），并根据阶段2的混合工作量证明/权益证明（Hybrid PoW / PoS）与PAI币的测试版本进行全面检查。
什么时候完成？
计划于2020年9月初完成。
阶段 4: 推出主网
目标是什么？
阶段4的目标是分叉PAI区块链并利用建议的混合PoW / PoS共识机制更新PAI币。
需要做的工作？
阶段4是对阶段2工作的重新运行，主要涉及的工作类型相同。
结果是什么？
在阶段4完成后，PAI币区块链将在指定的区块高度成功分叉。在该高度之后，所添加到区块链的区块必须通过混合PoW / PoS协议定义的验证标准。采矿和权益将完全公开。
什么时候完成？
计划于2020年9月末完成。
下一步: 有用工作量证明（PoUW）
众所周知，有用工作量证明（PoUW）是受PAI币启发的研究项目，旨在对采矿加密货币过程中所消耗的能量进行”回收”。有了这样一个协议的成功实施，采矿过程将在验证区块链交易的同时完成无关但有用的计算。欢迎点击PoUW学术论文摘要和PoUW学术论文全文查看更多相关内容的摘要和说明。
尽管有用工作量证明（PoUW）专门优化了工作量证明（PoW）共识，但有用工作量证明可能与权益证明相结合，为混合工作量证明（PoW）/权益证明（PoS）协议铺平道路。
2021年之后，Project PAI将专注于这一伟大且令人兴奋的提议。
每周更新
上周，团队继续致力于优化PAI Coin Pool，加入了PAI混合共识，并开始将PAI论坛迁移到新框架。
PAI Coin Pool
上周, 按照计划, 团队已经开始开发推荐系统，其工作包括:
● 作为PAI Coin Pool用户，您将拥有一个自己的独特且唯一的推荐链接。如果新用户是通过您的链接进行注册并获得采矿或权益奖励，您将获得与他们收入相等的10％推荐奖励。
● 如果您所推荐的用户之后利用他们自己的推荐链接推荐了另一位新用户，您还可以获得第二级用户采矿或权益获得收入的1％。
我们正在计划注册奖金:
● 对于在特定时间内注册的任何新用户，当他们锁定权益或开采一定数量的资金，将被空投PAI币。
● 现有用户只要满足与新用户相似的锁定权益或开采要求，也可以获得奖金。
在接下来的几周，团队将继续实行推荐系统和注册奖金。
PAI 论坛
上周, 团队已经将现有论坛的大量数据复制到Discourse新论坛储存，这是一项非常庞大和艰巨的任务。目前论坛现在进行最终审查。由于安全问题和平台之间的差异，某些数据（例如用户密码）将无法转移。但幸运的是，因为Discourse是开源软件，这问题在以后将不再会发生。
这周，团队正在为新论坛的发布准备公告。在发布当天，旧论坛将暂停使用，用户将被自动转到新的Discourse开源平台。
PAI Pass
上周, 团队完成了用于PDP2的个人数据备份功能的PAI币测试网和主网代码的工作。这意味着SSO用户将能够使用所有新的PAI Pass帐户测试此功能。
这周, 团队将完成PAI Pass的首个产品集成工作：PAI论坛。新论坛将为新用户和现有用户提供PAI Pass SSO选项。此版本将在新论坛升级之后发布。
PAI Up 网络版钱包上线了！
现在可以登陆 https://wallet.paiup.com 下载网络版PAI Up钱包啦！快来注册并创建您的钱包吧！它操作十分简单，并且与PAI Up移动钱包中的12词密钥兼容。
我们需要您的帮助!
香港采矿测试网
PCP的工程师已经在香港开设了测试网站，方便测试PAI 矿工的连接问题。香港测试网将使用单独的奖励池，不会对主网上的采矿活动产生任何影响。欢迎点击下方链接了解更多有关如何参与的信息: PAI Coin Pool 香港服务器测试
在测试结束时，您在香港开采的任何测试版本PAI币都将会转换为主网PAI币。
有问题?
欢迎来 PAI 论坛Forum 发表
感谢您一直以来的支持！
PAI Newsletter – April 20, 2020
Hello! Welcome to the third edition of the new PAI Newsletter. We hope you’re enjoying the updates so far. As always, let us know if you have any feedback. PAI Forum is the best way to reach the team and connect with other PAI Coin enthusiasts. If you haven’t already, sign up now.
This week, we’re happy to announce a roadmap to launch PAI Coin’s Hybrid Consensus mechanism. If you’re unfamiliar with PAI Hybrid Consensus, you can read the full proposalhere.
PAI Hybrid Consensus: A Roadmap
Phase 1: Core Technology Development
What’s the goal? The goal of Phase 1 is to successfully implement the core technology underlying PAI Coin’s proposed Hybrid Proof-of-Work (PoW) / Proof-of-Stake (PoS) consensus mechanism. You can read the technical details of the proposed approach here.
What kind of work is involved? It is purely software development work.
What’s the final deliverable? When Phase 1 is complete, a stable, production-ready codebase implementing PAI Coin Core based on Hybrid PoW/PoS will be available on Project PAI’s GitHub. In fact, the code is already available while work is in progress.
When will this work be done? The target completion date is May 2020.
Phase 2: Testnet Launch
What’s the goal? There are several goals of Phase 2:
1.To plan for and simulate the blockchain fork required to switch from the existing PoW protocol to the Hybrid PoW/PoS protocol (see Phase 4).
2.To comprehensively test the work done in Phase 1.
3.To set the stage for the development and testing of the work planned for Phase 3.
4.To get YOUR feedback on the Hybrid protocol.
What kind of work is involved? Phase 2 involves a variety of work spanning such things as systems administration, quality assurance, testing, debugging, coordination, and marketing.
What’s the final deliverable? When Phase 2 is complete, a publicly accessible testnet version of PAI Coin using the Hybrid PoW/PoS protocol will be fully functional. Project PAI will have deployed geographically distributed seed nodes, miners, and stakers to form a mock P2P network in which anyone can participate.
When will this work be done? The target completion date is June 2020.
Phase 3: Transition of Dependent Services
What’s the goal? The PAI ecosystem comprises an array of applications that depend on PAI Coin. Some examples include:
●The PAI Block Explorer at https://paichain.info
●PAI Up Mobile Wallet
●PAI Up Web Wallet
●PAI Coin Pool
●PAI Pass
The goal of Phase 3 is to update and test such applications for compatibility with PAI Coin using the PoW/PoS Hybrid protocol.
What kind of work is involved? Phase 3, like Phase 1, is largely software development work, but spanning a much wider range of programming languages and interdependencies.
What’s the final deliverable? Upon completion of Phase 3, applications and services dependent on PAI Coin, such as those listed above, will have been updated and comprehensively QA’d against the testnet version of PAI Coin with Hybrid PoW/PoS from Phase 2.
When will this work be done? The target completion date is early September 2020.
Phase 4: Mainnet Launch
What’s the goal? Put simply, the goal of Phase 4 is to fork the PAI Blockchain and update PAI Coin to use the proposed Hybrid PoW/PoS consensus mechanism.
What kind of work is involved? Phase 4, being a rerun of Phase 2, involves largely the same type of work.
What’s the final deliverable? Upon completion of Phase 4, the PAI Coin blockchain will have successfully forked at a specified block height. Blocks added to the blockchain after that height must pass the validation criteria defined by the Hybrid PoW/PoS protocol. Mining and staking will be fully publicly available.
When will this work be done? The target completion date is late September 2020.
Beyond Phase 4: Proof of Useful Work
As many of you know, Proof of Useful Work (PoUW) is a PAI Coin inspired research project which aims to “recycle” the energy consumed by cryptocurrency mining. With successful implementation of such a protocol, the process of mining would verify blockchain transactions while simultaneously completing unrelated, but useful, computations. This summary and paper contain more information.
While PoUW specifically optimizes Proof-of-Work (PoW) consensus, there is the possibility that PoUW could pair with Proof of Stake, paving the way for a Hybrid PoUW / PoS protocol.
Into 2021 and beyond, Project PAI will focus on this highly ambitious and exciting initiative.
Weekly Updates
Last week, the team continued working on PAI Coin Pool optimizations, plugging away at PAI Hybrid Consensus, and began an effort to migrate PAI Forum to a new framework.
PAI Coin Pool
Last week, as promised, the team started work on a referral system. It works like this:
●As a user of PAI Coin Pool, you will be assigned a unique referral link. If a new user signs up through your link, and then earns mining or staking rewards, you will get a referral reward equal to 10% of what they earned.
●If the user you referred then refers another user through their own referral link, you will also earn 1% of what the second-tier user earns through mining or staking.
We’re also planning sign-up bonuses:
●Any new users signing up during a specific time period and who stake or mine a certain amount will be airdropped PAI Coin.
●Existing users will also receive a bonus at a later date, provided that they fulfill staking and mining criteria similar to the ones new users will have to fulfill.
Over the next several weeks, the team will continue implementing the referral system and sign-up bonus.
PAI Forum
Last week, the team copied existing forum data to a new staging instance of the Discourse forum. This large data migration to the new Discourse system was a large undertaking. The staging forum is now in final review. Some data, like user passwords, could not be migrated due to security concerns and differences between the underlying platforms. Fortunately — with Discourse being open source software — this will not be an issue going forward.
This week, the team is preparing a launch announcement for the new forum. On the launch day, the old forum will be paused. Users will be automatically directed to the new forum using the Discourse open source platform.
PAI Pass
Last week, the team completed work on PAI Coin testnet & mainnet code for the PDP2 personal data backup feature. This means that SSO users will be able to test this feature with all new PAI Pass accounts.
This week, the team will be finishing work on PAI Pass’ first production integration: PAI Forum. That’s right, the new forum will have PAI Pass SSO as an option for new and existing users. This release will follow the upgraded forum launch.
PAI Up Web Wallet Available NOW!
The web-based version of PAI Up is now available at https://wallet.paiup.com; sign up and create your wallet today! It’s easy to use, and it’s compatible with the 12-word seed phrase from PAI Up Mobile Wallet.
We need your help!
Hong Kong Testnet Mining
PAI Coin Pool has opened up a test website based in Hong Kong to test reported PAI Miner connectivity issues. The Hong Kong testnet uses a separate reward pool, and will not have any effect on mainnet mining activity. Find out more about how to participate here:
https://www.paiforum.com/post/pai-coin-pool-hk-ser…
Any testnet PAI Coin that you mine in Hong Kong will be converted to mainnet PAI Coin at the conclusion of the testing period.
Questions?
Sound off on PAI Forum
Thank you for your support!
来源：PAI
