MetaMask 錢包現已整合 Coinbase 的第 2 層網路 Base

For some time now, the famous MetaMask crypto wallet also supports Base, which is the layer-2 of Ethereum developed by Coinbase. 

一段時間以來，著名的 MetaMask 加密錢包也支援 Base，這是由 Coinbase 開發的以太坊第 2 層。

However, in order to use Base in MetaMask, you need to manually activate this network.

但是，為了在 MetaMask 中使用 Base，您需要手動啟動該網路。

Coinbase layer-2: Adding Base to the MetaMask crypto wallet

When you open your MetaMask wallet, in the settings menu you will find a dedicated section specifically for the various supported networks. 

Coinbase 第 2 層：將 Base 新增至 MetaMask 加密錢包當您開啟 MetaMask 錢包時，在設定選單中，您將找到專門針對各種支援網路的專用部分。

The default network is obviously Ethereum, but there are also others that are not activated by default. 

預設網路顯然是以太坊，但也有其他網路預設未啟動。

To activate Base, simply search for it and check the status column. 

要啟動 Base，只需搜尋它並檢查狀態欄即可。

If the Base network is not found in that list, it is necessary to add it manually, using the “Add Network” or “Custom RPC” functionality.

如果在該清單中找不到基本網絡，則需要使用「新增網路」或「自訂 RPC」功能手動新增它。

To add and activate it, you need to enter the details of the Base network, namely the network name (Base), the URL, the chain ID (8453), the symbol of its native currency (ETH), and the block explorer URL.

要新增並啟動它，您需要輸入Base網路的詳細信息，即網路名稱（Base）、URL、鏈ID（8453）、其本機貨幣（ETH）的符號和區塊瀏覽器URL 。

At that point, all you have to do is save, and you will receive confirmation from MetaMask that the Base network has been successfully added to your wallet. 

此時，您所要做的就是保存，您將收到來自 MetaMask 的確認，表明 Base 網路已成功添加到您的錢包中。

Note that by default MetaMask only supports Ethereum, so any other network needs to be activated in this way, even though the main ones are already available and to activate them you just need to check the status column on the networks page in the wallet settings. 

請注意，預設情況下，MetaMask 僅支援以太坊，因此任何其他網路都需要以這種方式激活，即使主要網路已經可用，並且要啟動它們，您只需檢查錢包設定中網路頁面上的狀態列。

However, there is still an official guide available that shows all these steps with screenshots. 

但是，仍然有一個官方指南可用，其中透過螢幕截圖顯示了所有這些步驟。

Beyond Coinbase Base: Ethereum layer-2 in MetaMask crypto wallet

MetaMask is a crypto wallet specifically designed to manage transactions on Ethereum, so it’s not surprising that many of the networks that have been added over time are Ethereum layer-2 networks. 

超越Coinbase Base：MetaMask 加密錢包中的以太坊第2 層MetaMask 是專門為管理以太坊上的交易而設計的加密錢包，因此隨著時間的推移添加的許多網路都是以太坊第2 層網路也就不足為奇了。

Moreover, after the Dencun update on March 13th, the average cost of fees on Ethereum’s layer-2 has literally collapsed, while on layer-1 (i.e. the Ethereum blockchain) it has remained substantially unchanged. 

此外，在 3 月 13 日 Dencun 更新之後，以太坊第 2 層的平均費用成本實際上已經崩潰，而第 1 層（即以太坊區塊鏈）的平均費用成本基本上保持不變。

For example, on Arbitrum, the most used layer-2 of Ethereum, it now only takes about a thousandth of a dollar to have a transaction approved in a few seconds. 

例如，在以太坊最常用的第 2 層 Arbitrum 上，現在只需要大約千分之一美元即可在幾秒鐘內批准一筆交易。

On Base instead, about 3 are needed, which are however in line for example with the costs on Lightning Network, which however does not record on-chain transactions. 

相反，在 Base 上，大約需要 3 個，但這與閃電網路的成本一致，但閃電網路不記錄鏈上交易。

Base was born only last year, while for example Arbitrum has been around for almost three years. 

Base 去年才誕生，而 Arbitrum 已經存在近三年了。

It should also be noted that layer-2 solutions are a relatively recent development, so much so that Polygon, for example, has only been around for less than 4 years. 

還應該指出的是，第 2 層解決方案是一個相對較新的發展，以至於 Polygon 等只出現了不到 4 年。

It is now clear that the solution to Ethereum’s scalability problem lies in layer-2 solutions, or rollups as they are often called, and Base is among the solutions adopted by Coinbase to address in particular the issue of high fees, especially on smaller transactions. 

現在很明顯，以太坊可擴展性問題的解決方案在於第2 層解決方案，或者通常稱為的Rollups，而Base 是Coinbase 採用的解決方案之一，旨在解決高費用問題，尤其是小額交易。

Base and Coinbase

Coinbase is the largest US crypto exchange, and its services are specifically aimed at the average user, or the masses. 

Base 和 CoinbaseCoinbase 是美國最大的加密貨幣交易所，其服務專門針對一般用戶或大眾。

Actually, over the years it has also opened an exchange aimed at institutional investors, called Coinbase Prime, but it is quite different from the original exchange which has always had retail users as its main users. 

事實上，這些年來它也開設了一個針對機構投資者的交易所，名為Coinbase Prime，但與原來一直以散戶用戶為主要用戶的交易有很大不同。

For this reason, it certainly manages not only transactions of significant entities, but also many transactions of small entities, on which the fees are likely to weigh heavily. 

因此，它當然不僅管理重要實體的交易，還管理許多小型實體的交易，這些費用可能會產生很大的影響。

Last year, when they launched Base, fees were still relatively high even on Ethereum’s layer-2, because Dencun had not yet occurred. It is not certain that at that time it was possible to imagine that after this update the fees on some of Base’s competitors would have dropped to such an extent. 

去年他們推出 Base 的時候，即使在以太坊的 Layer-2 上，費用仍然比較高，因為當時還沒有出現 Dencun。不確定當時是否可以想像，在這次更新之後，Base 的一些競爭對手的費用會下降到這樣的程度。

Furthermore, if Ethereum is a decentralized network, we cannot be certain of the same thing regarding layer-2. So maybe Coinbase has chosen to prefer using a layer-2 created by itself, rather than one created by others and with a lower level of security than Ethereum. 

此外，如果以太坊是一個去中心化網絡，我們就無法確定第 2 層的情況。因此，也許 Coinbase 選擇更喜歡使用自己創建的 Layer-2，而不是由其他人創建且安全等級低於以太坊的 Layer-2。

For example, in the DeFi sector Base managed to reach almost one and a half billion dollars of TVL, while Arbitrum exceeds 3 billion.

例如，在 DeFi 領域，Base 的 TVL 達到了近 1.5 億美元，而 Arbitrum 則超過 30 億美元。

Among the layer-2s of Ethereum Arbitrum is clearly the most used at the moment, but Base has risen to second place in terms of TVL, surpassing Polygon and Optimism, both at 1 billion dollars. 

在以太坊的 Layer-2 中，Arbitrum 顯然是目前使用最多的，但 Base 在 TVL 方面已升至第二位，超過了 Polygon 和 Optimism，均為 10 億美元。

So Base is performing quite well, surpassed only by Arbitrum. 

所以 Base 的表現相當不錯，僅次於 Arbitrum。

The Base network also does not have its own native token, so all tokens claiming to be such are scams. 

Base 網路也沒有自己的原生代幣，因此所有聲稱是這樣的代幣都是騙局。

It should not be forgotten that Coinbase is a publicly traded company, and its shares are available on the Nasdaq with the ticker COIN. 

不要忘記，Coinbase 是一家上市公司，其股票在納斯達克上市，股票代號為 COIN。

The MetaMask wallet

MetaMask is one of the most widely used crypto wallets in the world, especially for Ethereum and its main layer-2 solutions. 

MetaMask 錢包MetaMask 是世界上使用最廣泛的加密錢包之一，特別是對於以太坊及其主要的第 2 層解決方案。

It was even launched in 2016, the year after the launch of Ethereum. 

它甚至於 2016 年推出，即以太坊推出後的第二年。

Its success is also due primarily to its browser extension, which allows you to easily and directly connect your crypto wallet to various websites and dApps. 

它的成功主要歸功於它的瀏覽器擴展，它允許您輕鬆直接地將您的加密錢包連接到各種網站和 dApp。

This is a non-custodial wallet, meaning that the user is the owner and exclusive custodian of the seed and all tokens.

這是一個非託管錢包，這意味著用戶是種子和所有代幣的所有者和獨家託管人。

Among the wallets used as a browser extension, it is certainly the most used, although for other uses it has now been surpassed by other solutions, such as hardware wallets. 

在用作瀏覽器擴充功能的錢包中，它無疑是使用最多的，儘管在其他用途​​方面，它現在已被其他解決方案（例如硬體錢包）超越。

Consensys created it and still manages it today. 

Consensys 創建了它，並且至今仍在管理它。

Consensys is definitely one of the most important crypto companies in the world in the Ethereum field, if not the most important after the Ethereum Foundation, which is however a foundation. 

Consensys 絕對是以太坊領域世界上最重要的加密公司之一，即使不是繼以太坊基金會之後最重要的公司，但以太坊基金會只是一個基金會。

Its founder is Joseph Lubin, co-founder of Ethereum itself. 

它的創始人是約瑟夫·魯賓（Joseph Lubin），以太坊本身的聯合創始人。

Although MetaMask is not the official Ethereum wallet, also because there is no real official Ethereum wallet, it is probably the closest thing to it. 

雖然 MetaMask 不是官方的以太坊錢包，也因為沒有真正的官方以太坊錢包，但它可能是最接近它的東西。