欢迎订阅P新闻第四期，我们将详细介绍更多关于PAI混合共识、PAI Coin Pool和PAI 未来的信息。
PAI Coin Pool
为什么PAI Coin Pool上显示的池哈希率与PAI浏览器（PAIChain.info）上的不同？
当前的PAI Coin Pool是支持链下采矿。这意味着，虽然PAI Coin Pool币池会将用户运行PAI Miner 提交的幸运哈希计入PAI Coin Pool从而计算区块奖励，但实际上并没有将新区块加到区块链上。您在PAI Coin Pool上看到的”系统总数”哈希率反映了此链下哈希率，即当前由PAI Coin Pool用户运行的所有PAI Miner应用程序提交的哈希值总和。它与用户通过PAI Coin Pool进行挖矿可赚取的PAI币数量有关，但目前与PAI区块链本身无关。
另一方面，显示在 PAIChain.info 右上角的哈希率反映了生成哈希的速率，目的是将区块实际附加到PAI区块链并验证真实的PAI币交易。真正的哈希率是网络上白名单矿工的集合。
由于目前为止，PAI Coin Pool正在链下进行采矿，因此PCP和PAIChain.info哈希率还不匹配。无论何时启动PAI混合共识，都会删除白名单矿工。之后，PAI Coin Pool将会改为链上采矿，届时PAI Coin Pool系统的总哈希率将等于PAIChain.info上显示的哈希率。
PAI Coin Pool将来会支持其他区块链吗？
混合共识是对PAI Coin协议的根本更改。它改变了验证交易的基本规则。这种改变不向后兼容，因此需要区块链的硬分叉。在尚未确定的预定块高度上，所有已更新到新版本PAI Coin 核心的对等点都将拒绝不符合混合共识协议的候选区块。
这将有效地实现两个区块链并行存在：当前使用比特币式PoW共识的原始PAI区块链和新的使用PoW / PoS混合共识的”官方” PAI区块链。
1.通过PAI Coin Pool代理
2.直接通过PAI Coin 核心（适用于高级用户）
PAI Coin Pool将更新为可以在链上挖矿，那时挖矿就会像现在一样简单-只需下载和在计算机上运行PAI Miner应用程序。唯一的区别是，你的矿工提交的幸运哈希将用于构建有效的候选区块并添加到PAI区块链中。
无论您是否专门生成区块作为区块链的一部分，只要PAI Coin Pool 整体上找到一个区块，所有参与PCP矿工都将按区块奖励的比例分数获得奖励。与直接采矿相比，参与集体奖励的主要优点是用户可以拥有虽然小，但更频繁的区块奖励。
如果你仍旧偏向尝试单人采矿，可以通过克隆并编译可在Project PAI GitHub上获得的开源PAI Coin 核心软件来实现。
不能，PoW / PoS混合共识机制使用SHA-3哈希函数。尽管理论上可以构建一个，但据我们所知，尚未存在可计算SHA-3的ASIC。这样可以实现公平竞争，从而允许普通用户使用标准计算设备公平参与采矿。
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 论坛 和 PAI Pass
新的PAI论坛将在2020年5月正式启动。由于需要导入信息，PAI论坛可能会在5月初暂时停止使用。新的PAI论坛启动后，我们将通过新的PAI论坛提供有关PAI Pass SSO实施的信息。
PAI Coin Pool
上周, 团队继续致力于开发推荐系统 并开始开发注册奖金.
●推荐奖励积分的后端开发 – 完成
●内部注册奖金API – 完成
●采矿推荐奖励的后端开发 – 进行中
●用户行为监控 – 进行中
●管理员界面 – 进行中
欢迎来 PAI 论坛Forum 发表
PAI Newsletter – April 27, 2020
In this fourth edition of the revamped PAI Newsletter, we’ll explore more details about PAI Hybrid Consensus, PAI Coin Pool, and what the future holds for Project PAI.
Reminder 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. We’ve had a 17% increase in users over the past two weeks.
New Frequently Asked Questions
Here, we’ll present and answer some new frequently asked questions we’ve been hearing from community members. If there’s something else you want to know, just ask on PAI Forum!
PAI Coin Pool
Why is the pool hash rate shown on PAI Coin Pool different from PAIChain.info?
As you probably know, PAI Coin Pool currently supports Off-Chain Mining. This means that, while the Lucky Hashes submitted by users running PAI Miner are counted by PAI Coin Pool for the purpose of calculating block reward payouts, they’re not actually used to append new blocks to the blockchain. The “System Total” hash rate that you see on PAI Coin Pool reflects this off-chain hash rate, the aggregate of hashes submitted by all of the PAI Miner apps that PAI Coin Pool users are running at the current time. It’s relevant to how much PAI Coin a user can earn by mining through PAI Coin Pool, but it’s completely unrelated to the PAI Blockchain itself (for now).
On the other hand, the hash rate displayed in the upper right corner of PAIChain.info reflects the rate at which hashes are generated for the purpose of actually appending blocks to the PAI Blockchain and verifying real PAI Coin transactions. The origin of this true hash rate is the collection of whitelist miners that support the network.
Since, for now, PAI Coin Pool is mining off-chain, the PCP and PAIChain.info hash rates do not match. Whenever PAI Hybrid Consensus is launched, however, the mining whitelist will be removed, PAI Coin Pool will transition to mining on chain, and the PAI Coin Pool System Total hash rate will equal the hash rate shown on PAIChain.info.
Will PAI Coin Pool support other blockchains in the future?
Currently, there are no plans to support other blockchains.
PAI Hybrid Consensus
How will Hybrid Consensus be launched?
Hybrid Consensus is a fundamental change to the PAI Coin protocol. It changes the basic rules by which transactions are verified. This change is not backwards compatible, and therefore, requires what’s called a hard fork of the blockchain. At a pre-specified block height, which is yet to be determined, all peers that have updated to the new version of PAI Coin Core will reject candidate blocks which do not conform to the Hybrid Consensus protocol.
This will effectively cause two blockchains to exist in parallel: the current, original PAI blockchain, using Bitcoin-style PoW Consensus, and the new, then-“official” PAI Blockchain, using PoW/PoS Hybrid Consensus.
Once Hybrid Consensus is launched, how will mining and staking work? Is any equipment needed for mining?
Following the launch of Hybrid Consensus, users will have two options to mine and stake:
1.By proxy, via PAI Coin Pool
2.Directly, via PAI Coin Core (for advanced users)
In either case, you shouldn’t need any special equipment to participate.
PAI Coin Pool will be updated to mine on-chain, so that mining will be as simple as it is now — download the PAI Miner application and run it on your computer. The only difference will be that the Lucky Hashes your miner submits will be used to construct valid candidate blocks for addition to the PAI Blockchain.
Regardless of whether or not you specifically generate the block that becomes part of the blockchain, all participating PCP miners will be rewarded with a proportional fraction of the block reward whenever PAI Coin Pool, as a whole, finds a block. Smaller, but more frequent, block rewards are the main benefit of participating in a pool versus solo mining directly.
If you still prefer to try your hand at solo mining, you would do so by cloning and compiling the open-source PAI Coin Core software that will be available on the Project PAI GitHub.
Can big mining companies with a lot of ASICs take over the network?
No, the PoW/PoS Hybrid Consensus mechanism uses a SHA-3 hash function. An ASIC that computes SHA-3 does not exist, to our knowledge (although one could theoretically be built). That levels the playing field and allows regular users to fairly participate in mining using standard computing equipment.
Mining Bitcoin requires significant energy and hardware resources. Can regular people participate in PAI Hybrid mining?
As Bitcoin’s value increased over the years since its launch, the Return on Investment (ROI) of designing and building specialized hardware to mine it increased as well. Now, over a decade since its inception, the Bitcoin network’s total hash rate is around 114 Exa-Hashes per second (EH/s)—equivalent to over 8 million Bitmain Antminer S9s—and it reportedly costs nearly $7,000 to mine a single Bitcoin[ https://www.coindesk.com/for-crypto-miners-bitcoins-halving-could-mean-a-doubling-in-costs].
With PAI Coin, on the other hand, when Hybrid Consensus is launched, the hash rate of the network will be relatively low. Thus, as we’ve seen with PAI Coin Pool, mining will be possible using standard computing equipment, like your home PC or laptop computer. And because specialized mining hardware does not exist for PAI Coin Hybrid Consensus, the limit to how much computing power an individual miner could contribute will be naturally lower than Bitcoin.
Okay, so, can Hybrid mining be done using older mobile phones?
In theory, yes, but Project PAI will not officially offer any software to do so. Because whitelist mining will be eliminated following the launch of Hybrid PoW/PoS, anyone will be able to mine or stake, thus forming a truly decentralized peer-to-peer (P2P) network. In order to mine on a mobile phone, one would need to reimplement mining software to run on said mobile device. It’s theoretically possible; limitations include lower computational power available in mobile devices and a quickly drained battery.
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 Forum and PAI Pass
The new PAI Forum will be launched on May. In connection with the transition, PAI Forum may be unavailable on early May. Once the new PAI Forum is launched, information about the implementation of the PAI Pass SSO will be made available through the new PAI Forum.
PAI Coin Pool
Last week, the team continued work on a referral system and started work on sign-up bonuses .
●Backend for Referral Rewards for staking – Complete
●Internal Sign-up Bonus API – Complete
●Backend for Referral Rewards for mining – In Progress
●User behavior monitoring – In Progress
●Admin UI – In Progress
These features are planned to be ready in early May.
PAI Hybrid Consensus
Here’s a snapshot of some of the commits / PRs by our developers last week:
●Implemented transaction reordering for block validation:
●Added VSP fee validation for ticket purchases:
●Added vote transactions to standard verification:
●Solved synchronization issues and added dedicated unit test:
●Added hard fork activation for an extended block header:
Sound off on PAI Forum
Thank you for your support!