Difference between Ethereum and Ethereum Classic

Ethereum vs Ethereum ClassicEthereum (ETH)Ethereum Classic (ETC)
SupplyEthereum still has an uncapped total supply of ETH, its cryptocurrency. However, it does have a fixed yearly supply of 18 million ETH – something which Ethereum Classic does not. Ethereum Classic has changed from an uncapped total supply to a total supply of somewhere between 210 million ETC and 230 million ETC.  This change in and of itself is a massive difference between the two networks and will have varying impacts on the future of the projects. 
The DAO Hard ForkFollowing the DAO hack in 2016, Ethereum split into two blockchains – Ethereum and Ethereum Classic.  Ethereum was the result of the hard fork, which reversed the $50 million (at the time) USD theft.  The hard fork made the hack transaction invalid, so investors in DAO could make up their losses. Supporters of Ethereum Classic opted not to move to the new Ethereum blockchain following the DAO attack. However, they were in the minority (only about 10% of users remained on the Ethereum Classic blockchain), and therefore they never regained the $50 million USD lost in the theft. 
ICOs and Investor ConfidenceEthereum is the leading blockchain for ICOs, holding over 80% of the market share. The ICO tokens are generally based on the ERC-20 token model.  Ethereum is also constantly expanding its functionalities, and has better developer support than Ethereum Classic.  Overall, Ethereum seems to enjoy vastly more investor confidence, and it remains the second-largest blockchain (at the time of writing). While Ethereum Classic still works with smart contracts and dApps, it is a far less popular choice for ICOs than Ethereum.  Ethereum has greater support from investors, and all round functionality is better on the new blockchain. 
Consensus Algorithm Ethereum is in the process of moving to a Proof of Stake (PoS) consensus algorithm. This will make the blockchain faster, safer, and more democratic. Ethereum Classic functions using a Proof of Work consensus algorithm, and has no plans to switch to PoS. 
Market CapAt the time of writing, Ethereum has a market cap of $19 billion USD. At the time of writing, Ethereum Classic has a market cap of $531 million USD. 

Ethereum is a public, open-source software platform built to support smart contract functionality. The network uses Ether (ETH) as its currency to process transactions and provide computational power to developers. The network also allows developers to build decentralised smart contract applications on top of it. For example, both Tether and Augur run on the Ethereum network.

The concept of a smart contract is critical to the understanding of Ethereum (ETH) vs Ethereum Classic (ETC). In simple terms, a smart contract is an agreement between two parties written in code. It sets out conditions that have to be met by each party for the contract to be executed. Once conditions are met, the contract is processed by the blockchain and executed without a need for third-party verification. Coupled with the immutability of the blockchain and its open-source design, smart contracts present an opportunity for many businesses. In fact, in 2019, Forbes identified more than 100 large American companies actively exploring blockchain technology, with many of them using the Ethereum network. 

Ethereum Classic (ETC) is the original Ethereum blockchain. ETH and ETC share the same blockchain record before the July 2016 hard fork. Because of that, the initial design and functionality of these two networks were essentially the same. The hard fork in 2016 split the blockchain into Ethereum Classic and Ethereum, dividing the community at the time. Most developers chose to upgrade to the new Ethereum protocol, limiting the size of the ETC community and its ability to improve the network.

BY NATASHA PRAYAG – Etoro and Capital.com

What is Uniswap

Uniswap is a popular decentralized exchange for cryptocurrency. It is one of the cornerstone projects of the Ethereum and decentralized finance (DeFi) ecosystem.

In this post we’ll break down what Uniswap is, how it works and why it matters. We make some generalizations for simplicity and assume no prior knowledge of Uniswap.

With that, let’s dig in!

Traditional trading: how it works

To fully appreciate Uniswap and decentralized exchange, it helps to first understand how traditional trading works using services such as Vanguard or Coinbase.

When you buy a share of Apple (AAPL) on Vanguard or units of Bitcoin (BTC) on Coinbase, you are “hiring” Vanguard and Coinbase as a middle man. They take your money and buy the given asset off an exchange order book: a list of buyers and sellers. The price you get for AAPL or BTC is the price another party has pre-agreed to sell or buy at.

Traditional trading generally has these characteristics:

  1. There is a trusted middle man to execute your trades (Vanguard, Coinbase)
  2. There is an order book filled with buyers (bids) and sellers (asks) that determine the value of your trade
  3. You don’t directly hold your own assets – the middle men hold them on your behalf
  4. You are required to provide personal information and be known to trade
An order book for Bitcoin (BTC) on Coinbase Pro (traditional trading model)

There are many advantages to this traditional trading model. For example – it is very well-established and powers very large, efficient markets. If you’ve bought a stock at a brokerage, or cryptocurrency on any major exchange (Coinbase, Binance, Kraken, etc.) this is the model you were interacting with.  

What is Uniswap?

Uniswap is an exchange system for cryptocurrency that operates on the Ethereum blockchain. Uniswap is an open source protocol, meaning anyone can interact with it and understand how it works.

Uniswap focuses exclusively on trading Ether (ETH) and Ethereum-based assets. At the time of writing, the size of this market was over $100 billion.  

So how does Uniswap compare to the traditional trading model?

Here are 4 interesting examples of how Uniswap differs:

  1. There is no trusted middle man to make trades. You trade directly from your own Ethereum self-custody wallet (e.g. MetaMask) using the Ethereum blockchain. This is what makes Uniswap a decentralized exchange (DEX)
  2. There is no order book! The price for buying or selling is determined through automated market making, which is handled by smart contracts on the Ethereum blockchain (more on this later)
  3. You directly hold your Ethereum-based assets in your own wallet. There is no custody middle man
  4. Your personal identity is not known (or required) to use Uniswap or Ethereum directly
Making a trade on the Uniswap exchange app

Automated market making

If Uniswap isn’t using an order book, how exactly does it figure out what the price is for buying and selling in any given moment?

Instead of an order book, Uniswap developed a clever mechanism called automated market making (AMM). AMM allows Uniswap exchanges to always provide a price, even for very small markets, without requiring buyers and sellers to pre-list their orders at fixed prices.

For this automated market making design to work, Uniswap replaced order books with a new, novel concept: liquidity pools.

Liquidity pools

Instead of relying on buyers and sellers who pre-agree on prices to form an order book, Uniswap incentivizes investors (aka “LPs” or “Liquidity Providers”) to pool their Ethereum-based assets into Uniswap smart contracts in exchange for a share of the transaction fees.

These invested Ethereum-based assets are allocated to trades automatically by smart contracts based on the rules of the Uniswap protocol. As more trades are made, the investors (LPs) accrue more transaction fees.  

Every trading pair on Uniswap has a liquidity pool. Anyone in the world can create Uniswap trading pairs or provide liquidity to them without permission.

One of the most popular trading pairs on Uniswap at the time of writing is USDC-ETH. This pair let’s you exchange USDC for ETH or vice versa.  

To become an investor in the USDC-ETH liquidity pool you must contribute an equal ratio (50%/50%) of both assets into the pool. To invest $1,000 you would need to contribute $500 in USDC and $500 in ETH.  

The top 10 exchanges, sorted by pool size, at the time of writing

Liquidity tokens (LP tokens)

Investors are willing to pool their assets in Uniswap because there is a financial incentive: they get a share of transaction fees (currently: 0.30% of every trade).

When investors pool their assets into Uniswap, they get liquidity tokens (“LP tokens”) back in return. These LP tokens are conceptually similar to owning stock or equity – they represent a direct claim on a portion of the total liquidity pool and accumulated transaction fees.

If you become an investor in the USDC-ETH trading pair, you will contribute USDC and ETH in equal amounts and get a Uniswap USDC-ETH LP token in return.

When investors want to cash out of a given pool, they simply trade in their Uniswap LP token and are given assets from the pool according to their percentage ownership. Because of the accumulation of fees, the amount of assets you receive should be greater than what you put in.

We won’t go deeply into Uniswap LP returns analysis here, but if you are interested in learning more, we suggest understanding more about impermanent loss (divergence loss). Impermanent loss is a key factor to consider when investing in Uniswap liquidity pools.

Using this liquidity pool system, Uniswap has attracted billions (in USD terms) of capital from investors. At the time of writing, there is over $1.5B invested, which is powering thousands of decentralized trading pairs!

Uniswap vs Coinbase Example

To further highlight the differences (and similarities) between traditional trading and decentralized trading using Uniswap, we can compare the same trade on both platforms.

Buying $100 of USDC with Ether (ETH) on Coinbase

  • Pre-trade Approval: Sign up and go through identity verification process
  • Price discovery: Order book (bids and asks) – you are matched with an existing price on the USDC-ETH order book
  • Speed: Near-instant
  • Custody: Custodial. You trust Coinbase to keep assets safe while holding them on platform (unless you transfer to a self-custody wallet)

Buying $100 of USDC with Ether (ETH) on Uniswap

  • Approval to trade: None. You need only an Ethereum wallet
  • Price discovery: Automated market maker (AMM) – the USDC-ETH Uniswap smart contract determines price algorithmically
  • Speed: Depends on transaction fees you specify to Ethereum, but likely 15 – 45 seconds
  • Custody: Self-custody. You trust yourself to keep assets safe in your own wallet

Why use Uniswap?

We’ve covered how Uniswap is different than traditional trading and exchanges, but why is it useful?

Where are the areas where someone might prefer Uniswap over a custodial alternative like Coinbase?

1. It’s non-custodial

While the quality and security of cryptocurrency exchanges has improved dramatically in the past decade, there still are an alarming number of exchange hacks that result in loss of customer funds.

Because custodial exchanges hold huge sums of assets on behalf of users, they are constantly under attack. When these attacks succeed, customers holding their assets at the exchange are often left powerless.

Uniswap, as a decentralized exchange, does not require you to give up control of your assets to trade. You can trade on Uniswap via Ethereum from the comfort of your own wallet.

Self-custodying cryptocurrency is not a riskless activity and requires its own set of best practices, but it does eliminate exchange hack risk.

2. It’s completely permissionless

Trading on traditional exchanges requires permission in at least two forms:

  1. You have to be approved to trade or transfer by providing your identity and sensitive personal information
  2. The assets that are available are selected at the discretion of the exchange

On Uniswap, you don’t need to be approved to trade, transfer or invest in liquidity pools. Anyone in the world with an internet connection and an Ethereum wallet can participate. Users who value privacy or those living in countries with restrictive capital controls may appreciate this aspect of Uniswap and decentralized exchange.

Uniswap is also not limited in what trading pairs it can offer or support. Any person can create a trading pair between two Ethereum-based assets and seed the initial liquidity pool. This results in a huge combination of trading pairs for a myriad of assets.

3. It has unique trading pair support

Thanks to the permissionless nature, there’s assets and trading pairs on Uniswap you simply can’t get on custodial alternatives.

Because it so easy to spin up a trading pair on Uniswap, it’s often the very first place new Ethereum-based assets are listed and available. Even when trading pairs are later added on custodial exchanges (Coinbase Pro, Binance et al) – Uniswap often has very competitive liquidity and fees.

Final thoughts

Uniswap is one of the breakaway success stories of Ethereum and DeFi. It has become one of the most important parts of the DeFi ecosystem and has proven that decentralized applications can compete (and sometimes win) versus centralized alternatives.

It will be exciting to watch what innovations the Uniswap team comes up with next and seeing the project grow as crypto becomes increasingly mainstream.

By Alex Treece – Zabo

什么是Sushiswap寿司

2020年8 月 27 日,一个新的“Uniswap+流动性挖矿”项目 SushiSwap 上线。而就在几天时间内,Sushiswap 就席卷整个 DeFi 圈。

在带大家了解 Sushiswap 前,有必要先给大家简单介绍一下 Uniswap。

Uniswap 是一个去中心化交易所,当然,你也可以把它看做是一个自动存取款机。加密货币交易者(我们称之为流动性提供者或“LP”)会把自己的代币都存入到这台「自动存取款机」里,之后这些加密货币就像是一条条「小鱼」似的在这台机器里到处游弋,这些游来游去的「小鱼」只有一个目的:进行代币交换。

让我们假设一位代币持有人将 ETH 代币和 LINK 代币存入了这台「自动存取款机」,完成存款操作之后,这位代币持有人会得到第三个代币——也就是所谓的流动性池代币:ETH / LINK-Pool-Tokens。这个代币其实是由 Uniswap 提供的,用于表示这位代币持有人所拥有的流动性。这位代币持有人被允许使用这些流动性池代币支付 Uniswap 上的交易费用,最重要的是,所有流动性池代币都是可以移动的。

而 SushiSwap 的设计逻辑既刺激投资者把资金提供给 Uniswap 资金池,又把大批 Uniswap 流动性吸引至 SushiSwap。在此驱动下,Uniswap 锁仓资金破 14 亿美元,Uniswap 交易量超过 Coinbase,其中 SushiSwap 锁仓资金在短短 4 天内超过 10 亿美元。

SushiSwap 协议设计

1

为流动性资金提供者提供激励

许多人可能自然会想到的一个问题是: “为什么有人要为 SushiSwap 提供流动性,而不是 Uniswap?”

使用 Uniswap,流动性提供者只有在他们提供流动性时才赚取资金池的交易费。一旦他们撤回资金池中自己的资金,将不再获得相应的收入。此外,随着协议越来越受欢迎,风投基金,交易所,矿池等(更大,更富裕)资金者陆续加入协议,早期流动性提供者的收益会被摊薄。

而有了 SushiSwap,你可以向资金池中提供流动性,并以 SUSHI 代币的形式获得奖励。但与 Uniswap 不同,即使你决定不再提供流动性,那些 SUSHI 代币也将使你有权继续赚取一部分 SUSHI 协议的交易费用。作为帮助提高流动性的早期流动性提供者,你会成为该协议的重要利益相关者。

你从抵押中获得的收益将与你投入的 LP 代币数量与 LP 代币总数成正比。除非你继续提供流动性,否则你的持股量和相应的奖励收入将逐渐被摊薄。

2

代币分配

很多人都是 Uniswap 资金池中现有的流动性提供者。因此,SushiSwap 设计了代币分配机制,以使现有的 Uniswap 流动性提供者尽可能容易地开始迁移到 SushiSwap。

想为 SushiSwap 提供流动性并获得 SUSHI 代币,持有 Uniswap LP 代币的任何人都可以将这些 LP 代币放到相应的初始资金池列表中。SushiSwap 在区块高度 10750000 开始奖励。可以根据链上管理添加合格的 LP 代币列表。每个人都可以做出决定。

每区块将生成 100 个 SUSHI 代币。这些代币将平均分配给每个支持资金池的抵押者。

注意,对于前 100000 个区块(约 2 周时间),产生的 SUSHI 代币的数量将为以后的 10 倍,也就是说每个区块中生成 1000 个 SUSHI 代币。这是为了激励早期农民和参与者,并为 The Liquidity Migration 提供帮助。

3

初始资金池:

CeFi 稳定币:USDT-ETH,USDC-ETH

DeFi 稳定币:DAI-ETH,sUSD-ETH

贷款协议:COMP-ETH,LEND-ETH

合成资产:SNX-ETH,UMA-ETH

预言机:LINK-ETH,BAND-ETH

庞氏经济学:AMPL-ETH,YFI-ETH

美味佳肴(2 倍奖励):SUSHI-ETH

SUSHI/WETH 资金池获得两倍奖励,因此请把你的 SUSHI 放到 Uniswap 里,从而有资格获得额外的奖励。SUSHI 启用后,社区可以投票添加更多资金池,或更改资金池的 SUSHI 权重。

4

奖励分配

使用当前的 Uniswap 配置,任何资金池中所有交易费用的 0.3%将按比例分配给池子的流动性提供者。在 SushiSwap 中,0.25%直接流向活跃的流动性提供者,而剩余的 0.05%直接转换回 SUSHI (显然是通过 SushiSwap)并分配给 SUSHI 代币持有者。

5

确保项目可持续性(开发资金)

为确保项目的长期可行性和可持续性。根据 LawMaster 的建议,每次 SUSHI 分发的 10%被留下作为开发和将来迭代,包括安全审核。

6

The Liquidity Migration

前 100000 个区块(大约 2 周)之后,SushiSwap 将迁移所有抵押在 SushiSwap 合约上的流动性代币。此迁移将涉及获取在 SushiSwap 上抵押的所有 Uniswap LP 代币,在 Uniswap 上赎回原来的代币,放到 SushiSwap 流动资金池上。这些新的 SushiSwap 资金池将与标准 Uniswap 资金池几乎相同,其新功能是,将把 SushiSwap 上产生的交易费用分配给 SUSHI 代币持有者。

迁移完成后,转换后的流动性将为第一批 SushiSwap 资金池提供燃料,并将使该协议立即生效。抵押者不需要做任何事情,可以继续提供流动性从而获得 SUSHI 代币奖励。

社区正在进行投票添加更多流动性资金池。

SushiSwap 推广

在协议和智能合约级别,SushiSwap 与 Uniswap 共享相同的接口。这意味着,如果你的协议当前与 Uniswap 兼容,则与 SushiSwap 集成应该很简单。SushiSwap 团队将与各种 DeFi 和其他生态系统工具一起集成 SushiSwap。

Sushi 挖矿教程

1、登陆 https://app.sushiswap.org (注:SushiSwap 从 Yam 借用了大部分 UI 代码)。

一文读懂 SushiSwap (附 Sushi 挖矿详细教程)

2、点击 unlock wallet,连接钱包(metamask 等,MetaMask 是一款浏览器插件钱包,不需下载安装客户端,只需添加至浏览器扩展程序即可使用。)

3、点击 menu 进入,以 Sushi-ETH Uni-V2 LP 代币为例(其他 Uni-V2 LP 代币操作和 Sushi-ETH Uni-V2 LP 一样)。

一文读懂 SushiSwap (附 Sushi 挖矿详细教程)

4、选择进入,批准存入 MasterChef 合约,完成。

一文读懂 SushiSwap (附 Sushi 挖矿详细教程)

5、如果你没有 Sushi-ETH Uni-V2 LP 代币,需要把 Sushi/ETH 提供给 Uniswap Sushi-ETH 资金池。

6、进入 Uniswap,选择 Swap。

7、买入 Sushi,Sushi 合约地址:0x6b3595068778dd592e39a122f4f5a5cf09c90fe2

一文读懂 SushiSwap (附 Sushi 挖矿详细教程)

8、现在你已经有了 Sushi,可以为 Sushi-ETH 资金池添加流动性。在 Uniswap 选择 Pool,点击 Add Liquity。

一文读懂 SushiSwap (附 Sushi 挖矿详细教程)

按当前比例添加 Sushi-ETH 流动性,确定后你会获得 Sushi-ETH Uni-V2 LP 代币。

9、回到步骤 3、4 抵押 Sushi-ETH Uni-V2 LP 代币。

现在你就是 Sushi 农民了,坐等收益。

By 区块链24小时

What is Sushiswap

SushiSwap is the newest decentralised finance (DeFi) liquidity pool platform. With SushiSwap, people can add their tokens into the liquidity pools and earn. In this article, we’ll have a look at the Sushi Swap platform and how to participate in the liquidity pool. Anyone can participate.

View Sushi Price Chart

Summary

  • SushiSwap is a platform that allows anyone to provide liquidity. In return, the person gets rewarded with token(s) and SUSHI tokens. 
  • As of September 4, 2020, there are 1 billion dollars of locked liquidity.
  • Possibility of very high APY (up to 1,000%) on some liquidity pools. You can check the current yields on SushiBoard.

Why is SushiSwap so popular?

Sushi Swap markets itself as an “improved and community-friendly” Uniswap. Unlike a traditional exchange like Binance where they employ market makers, SushiSwap is a community-oriented platform where users provide liquidity. In return, they get rewarded. Indeed, the users are the market makers.

SUSHI token

SUSHI tokens are given as rewards for liquidity mining. The token allows its holders to participate in the governance of the platform and entitles them to a portion of the fees paid to the protocol by traders. For the governance of the platform, SUSHI holders can submit a SushiSwap Improvement Proposal (SIP) which token holders can vote on with their tokens.

Of course, some people also speculate on the prices of SUSHI and the token can be traded on major exchanges such as Binance, FTX and OKEx exchanges.

Advantages of SushiSwap

There is no KYC (Know Your Customer) policy. This means anyone can trade and contribute to the liquidity pools. The platform is permissionless, meaning anyone can contribute millions of dollars without asking for permission. 

Earn tokens from Sushi Swap. SUSHI is Sushi Swap’s native token. When you contribute to the liquidity pool, you earn sushi tokens. You can exchange SUSHI for ETH. 

Sushi Swap model: 0.25% go directly to the active liquidity providers and 0.05% get converted back to SUSHI and is rewarded to sushi holders. 

Sounds interesting? Let’s visit Sushi Swap’s home page.

SushiSwap beginners guide 

When you first arrive on Sushi Swap’s home page, you’ll see this:

Sushiswap.fi homepage
Sushiswap.fi homepage

Click on “Unlock Wallet” or “See The Menu”, either way you will need to connect your ETH wallet in order to this platform. 

Sushi Swap has the option to use MetaMask, WalletConnect or many other non-custodial wallets. Pick the one of your choice.

Connect wallet
Connect wallet

Give permission for Meta Mask or Wallet Connect to connect to Sushi Swap. Once you’re connected, you’re ready to add your tokens into the liquidity pools.

Liquidity pools
Liquidity pools

You’re presented with various liquidity pools (LPs). Each liquidity pool has a different annual percentage yield (APY).

In this example, I’ll contribute to the ETH-USDT pool. I add my USDT into the liquidity pool. In return, I’ll get a percentage of USDT and SUSHI tokens. Think of Sushi Swap as a “community revenue share” model.

Contribute to liquidity pool
Contribute to liquidity pool

To contribute to the liquidity pool, click “Approve USDT-ETH UNI-V2 LP” and give your Meta Mask permission to move your tokens into the liquidity pool. 

Now what? You wait. The “SUSHI earned” box should populate with your earned SUSHI. You can withdraw your SUSHI token anytime by clicking on “Harvest”.

2020 roundup and new roadmap!

Many things have happened within the Sushiswap ecosystem in the last months: it is now time for a quick recap and to look at what the future will bring to this project!

The number of all the partnerships finalized by the protocol is countless, but one of the most important ones, if not the most important, is certainly the merger with Yearn. The news also sparked controversies: Sushiswap was still considered a sort of “copycat” of Uniswap by some, and when Andre Cronje (Yearn’s father) wrote an article on how it is difficult to build in Defi and how conversely it is easy for anyone to just copy other people’s code, this wasn’t seen as really coherent. The collaboration was born to allow the two teams to cooperate on Deriswap.

Nevertheless, Sushiswap has been evolving so much that, according to Mira Christanto (one of Messari’s data analysts) they have “put their past behind” and, not being backed by Venture Capitals, they can move faster than competitors. January has seen a real growth in Sushiswap’s TVL (now at $2.1 billion), mostly at the expense of Uniswap’s.

Among the important milestones in 2020, we find Onsen, the new Sushiswap liquidity mining incentivization program which replaces the old Menu of the week. It brings communities together into the ecosystem and allows voted tokens to become accredited and participate in the mining program. The website also has a new layout of and a lite version.

2021 Roadmap

As the new year has already begun, it is also interesting to have a look at what Sushiswap is working on for 2021. The team released a long and detailed roadmap in early January. Notable upgrades are the following:

  • Mirin will be the new upgraded version of Sushiswap’s V3 protocol. It will include many new features like franchised pools, double yield, dynamic yield rebalancing, and many more as you can read here.
  • Bentobox (which should have launched in January) was born in the team’s mind as a new Lending Platform. While they were was working on its code though, it became something more. In simple terms, it will be a single vault that holds all tokens for any protocols and future extensions. It will support several oracles and it will also benefit all the $SUSHI holders.
  • Miso (Minimal Initial Sushi Offering) will be a sort of token launchpad, designed to drive new projects’ launches on the platform. It will include crowd sale options, IDOs (Initial Dex Offering), auctions, and more. We could think of it as something similar to Binance’s launchpad.
  • As Ethereum fees are and will keep growing in the next future until ETH2 will be a reality, most platforms are studying alternative solutions for their users such as Layer 2 possibilities. Unlike Uniswap, which is working on Optimistic Rollups, Sushiswap decided to move in sync with the greater Yearn ecosystem and thus will probably offer Zk-rollups options.

Together with all these big news, Sushiswap is also planning to move to a new domain as the old one, in their view, is not enough to describe the diversity of the platform anymore. A transition to a fully decentralized governance structure is also planned by the end of 2021. Last but not least, Sushiswap has created a proposal page for people to express their ideas on what they would like to see on the platform. Everyone can be a chef is the place where you can voice your opinion if you like to suggest new ideas.

FAQs

Is it risky to provide liquidity to SushiSwap?

The pool could get hacked if the code isn’t audited. There have been cases of hackers draining funds from smart contracts. It helps if the code is audited by a reputable firm. In the case of SushiSwap, it has been given a “security review” (not an audit) by Quantstamp. 10 issues were identified but they do not appear to be fatal. Subsequently, Peckshield had completed an audit on SushiSwap. They found no critical or high severity issues relating to business logistics but 2 high severity opsec issues that need to be fixed through extra care with deployment.What is the reward model of Sushi Swap?

0.25% go directly to the active liquidity providers and 0.05% gets converted back to sushi and is distributed to active SUSHI holders.

By Michael – Boxmining

币圈婚恋杀猪盘是怎么操作的

6月26日,麦佳(化名)知道的受骗者已经达到了21人,“统计下来的被骗金额已经到了1500万。”

2个月前,麦佳落入了一个以谈恋爱为名的数字货币“杀猪盘”骗局。她从婚恋网站上认识的一名男子,一步步引导着她进入了一个数字货币交易APP。3天时间里,她亏损了70多万元,其中大部分为贷款。当初和她在微信上规划未来的男子消失了,而交易APP后来再也无法打开。

据蜂巢财经了解,与麦佳有类似遭遇的女性多达20名,她们因为在社交平台上曝光被骗经历而联系到彼此。受骗者分布在全国多个城市,她们分别从相亲名片、珍爱网、百合网等婚恋平台上接触到陌生男子,在对方网聊的嘘寒问暖中,被诱骗至黑平台上操作数字货币搬砖套利或期货交易。

这些黑交易平台多以手机APP形式存在,全部为测试版本,受骗者被爆仓亏损后的半个月到一个月内便无法打开。

6月27日,新京报报道了《婚恋平台“杀猪盘”调查》,揭露了婚恋平台上实名账户的黑产链条。近几年,婚恋平台成为“杀猪盘”温床,以往诈骗者多以投资理财和赌博设骗局。如今,数字货币交易也成为陷阱之一,感情骗子们借由婚恋平台、社交软件“养猪”后,将女性引入黑数字交易平台“杀猪”。

麦佳们痛恨欺骗了她们感情的那些男人,但更现实的疼痛来自于各自背负的数十万元的贷款债务。她们再也不敢相信任何陌生人,“数字货币”这几个字也成了他们的集体噩梦。

嘘寒问暖间引导下载黑平台

2个月前的那场噩梦将麦佳推向了抑郁的边缘,她一边吃药调整,一边努力工作,50多万元的贷款压得她喘不过气,而那个自称方浩文的男子再也没有回复过她的消息。

她和方浩文是从婚恋网站世纪佳缘上认识的,4月13日,两人互加微信,开始了线上沟通。方浩文自称35岁,单身三年,有北京户口,和朋友合伙经营一家互联网公司,居住在北京朝阳区芍药居附近。

当天,仅用了下午5个小时的时间,方浩文就用“霸道总裁”般的人设规划起和麦佳的未来,并要求麦佳和他一起卸载婚恋APP,美其名曰“从一而终”。

“现在想来,应该是为了他后续玩消失铺路。”之后的3天里,麦佳从对方编织的甜蜜中堕入梦魇。

就在当天晚上,麦佳向方浩文了解他的工作时,对方称,他的副业是区块链,“我做的是区块链小幅度涨跌幅双向收益。”随后发来一张数字货币期货交易的K线界面图。

麦佳知道比特币,去年还用个人电脑尝试挖过比特币,“纯体验,我知道它可以用来买卖、投资,但是太贵了,我不会去买,就挖着玩。”至于期货,大学时辅修过财会专业的麦佳略微知道期货交易的机制,“买多一个标的,涨了赚钱;买跌,就是跌了赚钱。”这些经验,都让麦佳觉得自己和方浩文多了一个微信聊天的话题。

方浩文在与麦佳的沟通间歇,常会告诉她“要去看一下走势”。麦佳为了持续双方的话题,也会在方浩文回到线上后问问他投资的情况。

一来一回的微信沟通中,方浩文开始向麦佳灌输投资数字货币可以实现“钱滚钱的赚钱之道”。当天晚上8点,方浩文说要带着麦佳体验一把。他甩给她一个火币交易所的APP下载链接,开始一步步引导她注册,一来一回的截图、画图,他引导她在火币的OTC交易区下单了价值2000元的275个USDT。USDT是一种锚定美元发行的币圈主流数字货币,麦佳记得,当时一个USDT价值7.25元左右。

方浩文引导购买USDT,麦佳表露过拒绝之意

麦佳向蜂巢财经提供的聊天记录显示,这期间,她一直以“不太会弄,下次再操作吧”、“先观望一下,不着急买”为由试图婉拒,但耐不住对方“做一件事情不要轻易放弃”的鼓励,以及“你做事情喜欢半途而废吗”的质问。

“当时就是为了给他留下一个好印象,了解一个他喜欢的事。”出于此种考虑,麦佳选择按方浩文说的“尝试一下”,没想到就此进入了对方的圈套。

准备好USDT后,方浩文引导麦佳下载、注册了一个名为IMF的所谓数字货币搬砖套利平台,之后几乎是手把手地教她把275个USDT从火币充入了IMF,并要求她用250USDT在IMF上买入LTC的看多期货合约。

仅5分钟,方浩文带着麦佳做的这单交易盈利了66 USDT,价值478元。对方还教她从IMF把USDT连本带利提回火币,卖成人民币。

也正是能把本金和收益变现这一步,让麦佳对这种投资多了些许信任,“至少投进入钱都能到手。”而这一步在方浩文之后两天引导麦佳的操作中,被对方以“提来提去太麻烦”为由而省略了。

一天内70万元资金爆仓归零

4月14日,麦佳在方浩文嘘寒问暖、憧憬未来的甜言蜜语中,提出再做一次操作。他称,有两波走势不错,通过计算出来的数据显示适合操作2万USDT和5万USDT,“收益下来都是本金的20%左右,我们一起做5万USDT的吧。”这一次,麦佳在方浩文引导操作下,以5000 USDT投入赚取了12%左右的利润。

很快,方浩文提出了次日一起操作“本金8万USDT下来收益在1.2万到2.6万USDT”的交易。

为了凑这8万USDT,麦佳不仅拿出了这几年20多万元的积蓄,还被对方催促着从银行、支付宝及微信等平台的借贷产品上借出了50多万元,“4月15日下午4点到5点期间多,这70多万元分批从火币买完USDT后,充进了IMF,总共10.34万多USDT,做多了QTUM,交割时间选了1天。”

在黑平台做单一日全亏 

4月16日下午4点,麦佳如同经历了一场噩梦,“全亏了,IMF上我的账户里只剩40多个USDT,这些也根本无法提到火币上。”而方浩文同时告诉她,他也亏了。

欠着50多万贷款的麦佳着急了,希望方浩文能借些钱给她,先帮她还部分贷款。此时,对方告诉麦佳,他的现金流断了,在想办法凑钱继续做单,把两人亏了钱都赚回来。

一切都开始变得不对劲起来。麦佳催促方浩文帮她解决还贷问题时,对方反而埋怨她不关心他;当她提出见一面时,对方称“没脸见”;她索要他的电话号码时,对方以各种理由死活不给。

麦佳此时才发现她根本不了解方浩文这个人,“他住哪,电话,甚至名字是不是真的,我都不知道。”从网上一搜,她意识到,自己这是碰上婚恋“杀猪盘”骗局了。

此后,她多次联系方浩文见面,但对方均拒绝。4月24日上午,麦佳斥责对方为骗子后,方浩文再也没有回复过她的信息。

5月11日,那个叫IMF的交易平台软件也无法打开了。

多个黑平台已无法打开

如果不是上网搜索,麦佳不会知道,和她一样由婚恋网站而落入数字货币“杀猪盘”骗局的人不在少数。 

5月11日,也就是她发现IMF软件无法打开后,她联系到在网上曝光类似经历的另一名受骗者,“当时我只知道有10个人被骗。”接下来的一个多月里,彼此联系的受骗者人数不断增加,截至6月26日,包括麦佳在内已经有21人,“全部都是女生,只有1人有过炒币经验,其他人在受骗前,都没投资过数字货币。”

据蜂巢财经了解,21名受骗者分别来自北京、深圳等多个城市,经统计,汇集起来的被骗金额超过了1500万元,多数人遭遇了被对方引诱着从银行或网络平台上贷了款的情况。 

她们相互沟通后发现,几乎所有人都经历了相同的套路:在婚恋网站上与陌生男子相识,没多久,聊天就从婚恋平台上转移到微信等通讯工具上,“杀猪者”获得她们的信任后,开始在日常沟通中透露出自己在做数字货币投资或搬砖套利中赚过大钱,提出带着女生体验,诱骗她们在火币、OKEx等知名数字资产交易平台上购买USDT,然后再引诱她们将真金白银买来的USDT充入一些黑交易平台。

所有被诱骗的女性起初都有小小盈利,之后“杀猪者”开始以高本金投入、高回报的话术包装,引诱她们投入更多的USDT,在她们爆仓亏损后,这些原先向她们展示过光鲜背景的男子或再也不回复信息,或将她们拉黑了事。而那些黑交易软件也会在短期内出现打不开或再也下载不了的问题。

受骗者被诈骗的平台包括ABS Group、IMF、Morgan Stanley等平台,这些平台无一可通过正常的APP商店下载,下载地址多为私有链接的测试版。其中,在ABS Group软件上被骗的女性人数最多,有些人还经历了一个软件失效后又被引入另一个黑软件上继续被割的遭遇。

IMF黑平台界面

李乔(化名)就是在ABS Group上被骗走了将近14万元。4月3日,她在微信小程序“相亲名片”上认识了一名男子。认识他之前,李乔从未听过数字货币。“因为是以恋爱为前提交往的,他骗取了我的信任,让我投资时,我是极不情愿的,但是为了跟他在一起,才会去迎合,没想到是骗局。”

麦佳也对蜂巢财经表示,她从不是一个胡乱投资的人,虽然日常生活中也有理财经历,但钱都是放在余额宝之类的平台获得固定的利息,最多买买银行推出的保本付息的理财产品,“我是一个对钱、投资特别保守的人,就是因为想和他有一个可以相互沟通的话题,才一步步配合他。”麦佳如今想来,与方浩文每日的聊天中,对方都会有意无意地透露他投资数字货币的爱好,“逐渐被渗透了。”

婚恋平台存实名制漏洞

无论是麦佳还是李乔,受骗者们落入陷阱的第一步便是婚恋平台,涉及到的平台包括相亲名片、珍爱网、百合网。她们中有一些人加到的“杀猪者”,原本在婚恋平台上显示为实名。但在女生们被骗后,当她们找平台索要诈骗者的信息时,遭遇了重重障碍。

麦佳提供的信息显示,方浩文在世纪佳缘上显示的正是实名。在对方骗了她消失后,世纪佳缘上的方浩文也消失了。她曾将自己的遭遇反映给世纪佳缘平台,希望能通过平台获得方浩文的个人信息,但平台客服告诉她,因为双方的沟通从平台转移到了微信,所以无法提供帮助。 

6月27日,新京报发布了《婚恋平台“杀猪盘”调查》,揭露了婚恋平台上实名账户买卖的黑产链条。据报道,QQ等社交平台上,存在买卖婚恋平台实名账号的群组,一个账号的售价在100元-450元不等。

据新京报报道,一些账号虽然是实名认证,但真实使用者和账号认证者并不是同一人。有送餐平台的跑腿小哥称,他曾接到寻找某个年龄段小哥的单,实际联系后,有自称婚恋平台工作人员的下单者会花钱找接单者,但事实上,他们的真实身份是从事实名账户售卖的人员。售卖者让接单小哥用他们个人身份证信息注册珍爱网、世纪佳缘等婚恋网站,“靠跑腿一个月挣几千的我,成了月入数万的成功人士。”曾被安排注册的跑腿小哥说。

从事婚恋平台实名账号销售的人员称,这些账号大多卖给了做“杀猪盘”的人。设骗局的人多数转移到了东南亚,他们买好账号在平台上“引流”,通过加微信或QQ添加好友后“养猪”再“杀猪”。有销售百合网、真爱网实名账号的人员透露,一些实名认证账号,一般使用两三天就被封,“但这已经很不错了,你知道这几天能引流多少人吗?一天能几十人。” 

出现这些现象后,各个婚恋网站上审核实名认证的流程也广受诟病,这些平台成了“杀猪盘”骗局的引流温床。

过去几年,见诸报端的“杀猪盘”骗局多存在于境外的赌博网站或理财黑平台。从2019年开始,数字货币也成了“杀猪盘”设骗局的泛滥之地。

相比赌博网站入金靠法币转账,数字货币交易平台的入金多了一道币流程,充入这些黑平台的价值币存储在一串随机生成的数字加字母表示的地址中,尽管这些地址可以在浏览器中用于追踪查询币的转移流向,但地址的所有者的真实身份则因为数字货币交易的匿名性特点而得隐匿。 

有区块链安全机构人员向蜂巢财经介绍,他们也曾处理过相关被骗案的地址追踪溯源,查到过被骗资金去哪里变了现,但最终还是需要警方介入才能追查到诈骗者是谁的问题,此类“杀猪盘”案件的处理,仍需要受害者先报警。

麦佳自被方浩文骗了之后,她出现了抑郁倾向,需要靠药物才能睡得着觉。这场“杀猪盘”骗局让她失去了对人的信任,“每次微信上有陌生人加我,我都会觉得恐惧,连现实生活的中的陌生人都不敢多搭话。”而将麦佳拖入现实的深渊的还有她身上背负的巨额债务。

李乔的网上“男友”消失后,她陷入了自我质疑中,“都是我自己不好,太相信人了,没有把自己放在第一位,总是为别人考虑。”与人为善、站在别人立场上想问题的价值观,放在正常的社交生活中原本都是好品质,如今成了她落入圈套的致命弱点,“很难再相信别人了。”

当币圈创业的交易平台们绞尽脑汁营销引流,指望着新人入场将行业圈层向外再拓展一圈时,骗子们捷足先登,将数字货币投资的小白们率先扼杀在了骗局里。

By 问道-蜂巢财经

哪里买比特币最靠谱

比特币交易所由于在国内不被承认,所以都没有做到合规,这就导致币圈新用户选择交易所经常遇到不靠谱的交易所,而不靠谱的交易所经常会有非常大的危险,杀猪盘屡禁不止:

  • 跑路:创世团队携款跑路,你放到里面的数字货币就都取不出来了,所以这是非常危险的。
  • 被黑客攻击:这也是非常危险的,小交易所由于技术不好,不重视技术,导致非常容易被黑客攻击,而一旦被黑客攻击,小交易所是没有很多钱的,所以也就只能倒闭,作为用户放到里面的数字货币也就都无法使用了
  • 各种暗黑操作:比如有的交易所在你提币时让你交税,20%的税,这已经很高了,太坑了。还有的交易所根据你的操作来在背后暗地里操作,故意爆你的仓位,导致你损失资金。

以上只是不靠谱交易所的冰山一角,他们还有很多办法让你损失资金。

所以,币圈用户一定要选择靠谱的交易所,作为在币圈呆了5年的老人,只推荐国内三大交易所,火币、OKEx、币安。

币圈101:哪些交易所买卖比特币比较靠谱?

如上图是三大交易所的全球排名,他们每天的赚的手续费都有很多钱,所以完全没有作恶的必要,买卖数字货币选择这三个交易所就可以了。

点击注册火币网Huobi

点击注册币安网Binance

点击注册OKEx

除了这三大交易所没有作恶的必要,其次他们的产品用户体验也非常好,UI优美,交互合理,拥有APP、web端、电脑客户端等全平台客户端,在哪里使用都非常方便。

By ToTheMoon-人人都懂区块链

What is Monero

Monero (XMR) is a cryptocurrency which focuses on being untraceable and private. Its design differs from Bitcoin’s in a few key ways, but it should be understood as a cryptocurrency similar to Bitcoin – it can be used to buy and sell things, and can be exchanged for other  coins or tokens.

So Monero XMR is a cryptocurrency focused on privacy and anonymity. Bitcoin is actually pseudonymous and BTC transactions are still traceable, but XMR transactions can be fully anonymized like physical cash. It is a fork of Bytecoin, the original privacy coin.

Of course, each physical dollar has a serial number on it that’s traced by FDIC-insured banks and governments. But it’s not necessary to see someone’s bank account balance to accept their dollar bill. In the same way, retailers only need to verify you have enough to cover your transaction when you use a debit or credit card.

Monero uses ring signature cryptography to reduce the amount of information used in cryptocurrency transactions. This gives the sender and receiver of XMR transactions the ability to verify the transaction in privacy.

Strong encryption, a streamlined blockchain, and infinite supply make Monero a strong privacy coin with a solid future ahead of it. Before diving into the nuts and bolts of the project, let’s look at the crypto market performance of the Monero XMR crypto coin.

XMR’s Crypto Market Performance

The peak price of XMR so far was $494.16, which occurred on January 6, 2018. As mentioned above, there’s no total supply cap, but over 16,500,000 XMR are in circulation.

Like BTC, XMR is a Proof of Work cryptocurrency. Unlike BTC, however, it uses a variation of the CryptoNote cryptocurrency mining algorithm, which making it more CPU-friendly. In fact, Monero continues updating its blockchain protocol to be ASIC resistant, much to the chagrin of ASIC rig manufacturers like Bitmain. It hard forked in both 2017 and 2018 in its war on ASICs.

Monero opposes ASIC mining because of its centralization of cryptocurrencies like Bitcoin and Ethereum, which are now moving toward Proof-of-Stake. It spent much of 2017 and 2018 continuously upgrading both ASIC resistance and privacy on the network. These are great signs of development support in a blockchain market filled with vaporware.

This caused a lot of Monero forks, including Monero Original (XMO), Monero 0 (ZMR), Monero Classic (XMC), and MoneroV (XMV).

Monero is traded on a variety of cryptocurrency markets, including Bithumb, Binance, HitBTC, Poloniex, Bitfinex, and CoinEx. It has a ton trading pairs, including BTC, BCH, USDT, LTC, ETH, EOS, DASH, and even fiat currencies like USD and EUR. Over $25 million worth of XMR is traded on a daily basis.

The Monero community built wallets for pretty much every OS, and a hardware XMR wallet is on the way. In addition, third-party wallets like Cake Wallet, Monerujo, My Monero, and Ledger’s hardware wallets support XMR.

Behind the Veil of Anonymous

Anonymity online is a hot-button issue that’s important for everyone. Every time you log in to your Samsung device using Google’s OS to connect to AT&T’s network and browse Amazon’s app, a lot of hands are touching, monitoring, and even selling your data and habits. Tech-savvy people use VPNs, proxies, and TOR networks to avoid being traced.

However, financial transactions and other personal information were used to track people centuries before we walked around with the internet in our pockets.

Using XMR for dark-web transactions, you have the best chance at anonymous online transactions…at least that’s what they say.

Monero aggressively defends its platform’s privacy, pointing out a CryptoNote bug that affects privacy coins like Bytecoin. But privacy and anonymity online are never guaranteed, even with Monero’s dedication.

Monero still uses a similar two-key authentication method for transactions on other blockchains. It just adds an extra step. Your public key is used by the sender to generate a random one-time key, and the receiver uses a private key to receive. Brute-forcing such a system would be difficult, even with quantum computing, but no matter how much you encrypt an individual transaction, metadata holds answers.

This is where ring signatures come in to make things even more difficult. Essentially every output also has multiple false outputs to trick the system. Picture the most complicated bank vault you ever saw in a major Hollywood movie, multiply by ten, and this is what Monero promises.

Tor traffic has long been monitored by government watchdogs like the NSA using the Navy’s powerful networking tools. And even reducing transactions to minimal data hasn’t stopped researchers from reportedly using big-data analytics to trace over 80 percent of XMR transactions on the Monero blockchain.

While the actual transaction itself is being veiled, all the contextual information around it can help pinpoint transactions. In addition, if your private key is compromised, someone could trace all your individual transactions, so it’s vital you keep your private Monero key secure.

Still, the anonymous core development team led by Riccardo “fluffypony” Spagni and David Latapie built a lean, secure, and efficient blockchain-based cryptocurrency. He’s also quick to point out shortcomings in other crypto projects like BAT.

Disparaging the security of a system like Monero isn’t exactly fair, as it’s still more secure than most blockchains and at least as secure as systems used by Bank of America, Visa, Wall Street, and other financial institutions. It’s using government-grade encryption, and that’s good enough for now.

Privacy coins are in the crosshairs of regulators, and even though transactions can be secure on their blockchains, most market trades are required to be logged.

Monero Summary

Monero XMR is a privacy coin that forked from Bytecoin to become one of the highest ranked cryptocurrencies by market cap. It’s widely used in darknet marketplaces instead of Bitcoin because it promises anonymity instead of pseudonymity. Monero’s success depends on these key factors:

  • Monero XMR uses ring signatures to mask randomly-generated authentication keys and keep transactions both secure and slimmed down to only pertinent information.
  • Mining XMR can still be done on home PCs. In fact, the Monero community aggressively upgrades its network to remain ASIC resistant.
  • Monero has a lot of trading pairs, making it easy to get into and out of. This accessibility will help it maintain high trading volumes for years to come.

So long as Monero and privacy coins like it don’t come under regulatory fire, XMR is a solid cryptocurrency that’s seen a lot of use since its inception. An active development team and community make this privacy coin one to watch for years to come.

什么是门罗币

门罗币的起源要追溯到2014年,当时有一位极客为了改善比特币的匿名性,发布了一个CryptoNote协议,不久之后,基于这个协议诞生了首个匿名币——字节币(Bytecoin)。

与比特币相比,字节币的匿名性更好,更注重隐私保护,因此,一经推出,也受到不少极客的热捧,几周后,字节币的GPU矿机诞生。

但很快有些人发现,开发者竟然预挖了82%的代币!这在崇尚去中心化的数字货币世界,无疑会遭到许多人抵制的。

于是,社区直接对字节币进行硬分叉,2014年4月18日这天,门罗币正式诞生,英文名称为Monero,简称 XMR 。

与比特币类似,门罗币同样采用了工作量证明机制 ( POW ),但没有采用 SHA-256算法,而是 CryptoNight 算法。

在比特币中,由于区块链账本的公开及可追溯性,任何一个人都可以通过比特币区块链浏览器的公开信息,顺藤摸瓜查出来所有和它有往来关系的比特币账户,因此,比特币的匿名性并非是无懈可击的。

门罗币则采用了环签名和混淆地址的方式来保证匿名性。其交易不仅隐藏交易双方地址,而且还可以隐藏交易金额,默认情况下交易细节完全不可见,隐私性极强。所谓环签名,就是当一笔交易发生后,系统自动生成几组同额度当交易,通过这种“真假混合”的方式,让你根本查不出来到底这个币去了哪个地址。

此外,门罗币没有上限。

不同于比特币有总量上限(2100 万),门罗币会一直通胀下去,但每区块的挖矿奖励会逐渐降低直至 0.6 门罗币(预计发生在 2022 年下半年,当前的每区块挖矿奖励约 2.5 XMR)。

比特币平均每 10 分钟一个区块,门罗币平均每 2 分钟一个区块,区块没有固定的大小限制。为了防止矿工通过超大区块堵塞系统,门罗币设置了一个挖矿奖励惩罚机制(Reward Penalty):

每一个新生成的区块,如果超过了 300000Bytes,而且还超过了最新的 10 万个区块大小的中位数(去年 3 月份分叉之前,是最新的 100 个区块大小的中位数),就会受到区块奖励减少的惩罚。

门罗币隐身的秘诀

门罗币运用了三大技术,分别是:环签名、混淆地址、环机密技术。

在交易环节,主要涉及[发送方][接收方][交易额度]三个数据,门罗币对应的三项技术,正是从这三个角度着手。

环签名 – 发送方,不可追踪性

打个比方,大家联名上书提意见的时候,怎样让外界难以猜测发起人是谁?上书人的名字可以写成一个环形,环中各个名字的地位看上去彼此相等,因此难以猜测发起人是谁。假设,A发送门罗币给 B,设定混淆交易数量为5。网络在转账时会自动生成5笔转账交易,除了A发送给B的这笔,另外的4笔都是用来瞒骗外界观测者的“诱骗交易”,这样达到隐匿发送方的目的。

混淆地址 – 接收方,不可关联性

混淆地址是为了打破输入输出地址之间的关联,以此隐匿转账的来去关系。每当发送者要发起一笔转账的时候,这笔资金不会直接打到接收方的地址,而是打到一个系统临时生成的地址。例如,A向B转账时,A作为发送者用B的公钥私钥加上一些随机数,生成一个独一无二的、一次性的地址,系统给这个临时地址转账。A和B自己都能看到这个临时地址,但都不知道地址里的钱属于谁。

那么B怎么知道有人给自己转账,怎么收到这笔钱呢?B的钱包会用私钥进行搜索功能,查看区块链上的临时地址是否有属于自己的钱。当B的私钥(仅有接收方B自己的私钥能够)识别出自己有权认领的临时地址,就能使用这笔钱。

环机密 – 交易金额的隐匿

在A向B转账时,在 RingCT 的交易中, A 不会直接公开给网络转账的金额,而是提供一个数字rct,作为交易金额输出。rct= 随机数 + 真正的交易金额。随机数是用来为真实金额遮盖的,由钱包自动产生。网络可使用这个rct值去验证交易输入是否等于交易输出的金额,以确认没有额外的 Monero 被伪造产生。 然而,对于其他人而言,无从得知实际交易金额。

对抗矿霸

门罗币天生为了不公平而战斗。

2018年,比特大陆推出了门罗币ASIC矿机,门罗币开发团队立马表示抵制,并不惜用硬分叉修改算法,以防止ASIC大范围抢占矿机生态。

为什么抵制ASIC?ASIC矿机的算力非常强大,如果大家都买ASIC,就容易被供应商控制,或者比特大陆自己成本价用ASIC挖,那又回到算力独大导致所谓中心化的问题了。

门罗币社区的激烈反应令比特大陆始料未及,如果新版的算法不支持ASIC矿机,那么ASIC矿机将成为一堆烂铁。

作为曾经叱咤加密货币市场的王者,比特大陆自然不能坐视不理。

2017年曾推动比特币分叉,并产生比特现金,这次故伎重演。

比特大陆马上招募技术团队,对门罗币进行分叉,于是门罗经典(monero-classic)诞生,门罗经典支持ASIC矿机,比特大陆一再宣称,门罗经典才是正统。

但就在分叉后不久,门罗经典由于缺乏社区支撑,最终江河日下,一蹶不振。

相反,门罗币就像一个战士,越战越勇,目前在市值20亿美元,排名 14 。

门罗币是什么?一文读懂匿名币霸主XMR | 币小宝区块链公开课        资料来源:https://www.bixiaobao.com/cn/coinlist/monero

在门罗币的官网上可以看到,门罗币目前一共有 7 名核心开发者,此外,自门罗币创始以来已经超过500名开发者为其贡献代码,从这点来看,门罗币社区确实十分强大。

为了对抗矿霸与黑客,门罗币平均每六个月就升级一次算法,门罗币最初使用的是CryptoNight算法,后来在对抗ASIC矿机中升级了RandomX算法,在对抗黑客的过程中加入了防弹协议(bulletproofs)。

门罗币的监管风险

门罗币的匿名性既是其最大的优势,也是其最大的弱点。隐匿有价值,但它也可以使非法活动不受惩罚,加大了监管的难度。

2018年3月,Coincheck称将下架 XMR、DASH 和 ZEC 三大匿名加密货币。另外许多韩国与日本的交易所也相继下架诸如 XMR、ZEC、DASH 等等这些具有匿踪匿名传输与交易功能的货币,据推测,这些举措和政府监管有关。

除了监管问题外,门罗币的隐私保护措施也并没有那么强大。WIRED杂志早些时候发表了一篇关于门罗币隐私弱点的文章,来自不同大学的研究人员指出了门罗币的交易混合算法中的缺陷,该缺陷破坏了其无法追踪的特性。针对这些问题, 门罗币的开发人员对门罗币进行了定期和持续的改进。不过, 隐私不是一蹴而就的,会是一场持久的战斗。

不可否认,门罗币在不牺牲去中心化的情况下为加密货币引入了隐私,使用创新技术来确保交易不可关联,无法追踪,并且发送的金额被隐藏起来,还是值得肯定的。目前门罗币的开发人员也在针对存在的扩展性、被黑客攻击以及数据滥用等问题进行改进,但是政府的监管还是不能忽视的不确定因素。

参考资料:

1.门罗币价格:https://www.bixiaobao.com/cn/coinlist/monero

2.维基百科:门罗币

3.门罗币官网:www.getmonero.org

4.市后诸葛《门罗币:你有矿机你有钱,我换算法还不行吗?》

5.白话区块链《门罗币是什么》

By 链得得-币小宝

什么是莱特币

莱特币受到了比特币(BTC)的启发,并且在技术上具有相同的实现原理,莱特币的创造和转让基于一种开源的加密协议,不受到任何中央机构的管理。莱特币旨在改进比特币,与其相比,莱特币具有三种显著差异。第一,莱特币网络每2.5分钟(而不是10分钟)就可以处理一个块,因此可以提供更快的交易确认。第二,莱特币网络预期产出8400万个莱特币,是比特币网络发行货币量的四倍之多。第三,莱特币在其工作量证明算法中使用了首次提出的加密算法,这使得相比于比特币,在普通计算机上进行莱特币挖掘更为容易。每一个莱特币被分成100,000,000个更小的单位,通过八位小数来界定。

它基于比特币协议,但不同于比特币的地方在于,通过消费级的硬件也可以高效地”挖矿”。莱特币提供给您更快速的交易确认(平均2.5分钟),它使用硬内存以及基于一种加密算法的挖矿工作量证明算法,面向大多数人使用的普通计算机及图形处理器。莱特币网络预期将生产8400万个货币单位。

莱特币的设计目的之一是提供一种挖掘算法,使它能够在挖掘比特币的机器上被同时运行。为挖掘比特币而设计的专用集成电路逐渐兴起的同时,莱特币也紧跟着技术演变。但在莱特币货币被广泛应用之前,不太可能会出现专门为莱特币设计的专用集成电路。由一个类似于比特币的点对点网络,通过工作量证明方案来处理莱特币交易、结余以及发行(当一个足够小的哈希值被发现时,一个块就会被创建,此时莱特币就会被发行,而发现这个哈希值和创建块的过程被称作”挖矿”)。莱特币的发行速率按照等比数列,每四年(每840,000个块)减少一半,最终达到总量8400万个LTC。不同于比特币,莱特币更适合用图形处理器(GPU)进行”挖矿”。

截止至2021年3月28日,莱特币价格在1198美元左右,2013年10月最低12美元,2017年12月最高2348美元。详细价格请参考CoinMarketCap.

What is Litecoin

Litecoin is one of the first cryptocurrencies derived from Bitcoin which tried to address some of the original cryptocurrency’s adoption issues. Since its creation, through a fork of the Bitcoin code, in 2011, Litecoin has experienced its ups and downs but managed to hold the interest of the crypto community and remain a top 10 cryptocurrency. Even so, it faces stiff competition from other protocols such as Bitcoin Cash and Bitcoin SV in its positioning as a viable protocol for mass on-chain transactions.
 

Beginnings

Litecoin (LTC) is a peer-to-peer digital currency based on a decentralized, open source blockchain network. It was created in 2011 by the MIT graduate and former Google employee Charlie Lee.

Lee designed Litecoin based on the Bitcoin code and protocol, with some modifications that he believed addressed certain barriers to its wider adoption. Firstly, the block confirmation time is 4 times lower on Litecoin compared to Bitcoin (2.5 min vs. 10 min) which allows Litecoin to confirm transactions much faster. Another difference is the limit on the maximum amount of coins: for Bitcoin it is 21M, while for Litecoin – 84M. Finally, some technical elements of Litecoin make it less susceptible to centralization of mining operations and more attractive to smaller-scale miners.

Litecoin was one of the first altcoins to spring from the Bitcoin protocol. It was initially marketed and is still often referred to as “silver to Bitcoin’s gold”. Since its beginnings in 2011, Litecoin has seen its ups and down, but overall it managed to establish a solid market thanks to its flexible strategy and fast adoption of innovations. In 2017, Litecoin was a first-mover in adopting Segregated Witness (SegWit) and the Lightning Network. Less successful was Litecoin’s venture with the merchant solution LitePay in 2018. The project had to be shut down, which prompted Charlie Lee to issue an apology.

The development of the Litecoin project is overseen by a non-profit Singapore-based Litecoin Foundation, with Charlie Lee as a managing director. Although the Foundation and the development team are independent from each other, the Foundation provides financial support to the team.
 

Uses

Litecoin functionality is overall quite similar to Bitcoin, i.e. it is meant to be a digital currency which is free from any centralized influence. The LTC philosophy is formulated by the Litecoin Foundation on their website, “We Believe That When It Comes To Your Money, You Deserve 100%”. The statement generally refers to the promises common to most cryptocurrencies: constant availability and absolute control of the funds by the owners, and the accessibility to everyone.

LTC can be purchased on any major crypto exchange, and stored in digital wallets, specialized hardware, or crypto custody providers. Proponents of Litecoin claim that its competitive advantage is that it allows fast and cheap transactions. Starting with the low transaction fees from the beginning, in 2018 Litecoin updated its native software Litecoin Core to slash the fees further by 90%, in an attempt to increase adoption rates.

Speed and low fees should make it attractive for individuals to use Litecoin for peer-to-peer transfers and digital purchases, and for businesses – as a payment system. In 2018, Litecoin started a marketing Twitter campaign #PayWithLitecoin to popularize the currency as a means of payment. However, the list of businesses accepting it remains limited.

As most crypto assets, LTC experienced some serious price volatility since it started trading. The price has reached its peak above $300 in the end of 2017. During 2020, LTC was mostly trailing just below the $50 mark. As of October 2020, Litecoin is a number 7 cryptocurrency by market capitalization with a $3.6B market cap (for comparison, Bitcoin’s market cap is $256B).
 

Outlook

In 2020, one of the most interesting trends in Litecoin development is the work on MimbleWimble.. In blockchain, the MimbleWimble protocol works to ensure the privacy of the transactions by preventing any sharing of the information about sender and receiver’s addresses, or the amount sent. Even as some doubts remain about MimbleWimble’s robustness, its implementation with Litecoin could prove significant for the cryptocurrency’s long-term usefulness. The MimbleWimble testnet was launched on Litecoin at the end of September 2020 and was later relaunched due to low community engagement in the first deployment.

Another interesting development that could influence the future of Litecoin is its venture into the gaming industry. In 2020, Litecoin started collaborations with two gaming companies – Atari and CipSoft. Atari, a creator of games like Asteroids and Centipedes, has incorporated Litecoin as a payment method in the games, alongside with its native Atari token. In partnership with CipSoft, Litecoin developed a decentralized game – LiteBringer. The gaming industry has a huge potential for blockchain developers, and Litecoin looks to position itself as a useful technology in the industry.

On the whole, Litecoin’s development and usage trails that of other top ten cryptocurrencies as the industry grows beyond a simple focus on payments and looks towards the wider horizons of Web 3.0.

By BitcoinSuisse