Autor Cointelegraph By Emi Lacapra

How to add Arbitrum to MetaMask?

Arbitrum is one of Ethereum’s layer-2 scaling solutions designed to improve smart contracts’ efficiency and transaction execution on the network while reducing fees drastically and adding extra privacy features. L2 networks are software that sit on top of the base layer of a blockchain like Bitcoin or Ethereum to boost the platform’s efficiency and offer inexpensive transactions. In recent years, Ethereum’s surge in the development and adoption of Web3, nonfungible tokens (NFTs) and decentralized applications (DApps) has resulted in the platform’s excessive congestion leading to skyrocketing fees. Different solutions have been explored to resolve Ethereum’s scalability, including layer-1 dedicated upgrades. However, L2 solutions seem to have picked up momentum, with the Arbitrum network being one of the most promising. New York-based development company Offchain Labs created Arbitrum. The company raised $120 million in a Series B funding round in September 2021. Why use Arbitrum?While relying on Ethereum’s L1 security, Arbitrum can ensure inexpensive gas fees due to the use of Optimistic Rollups. Optimistic Rollups are smart contracts that bundle transactions, using less computation and gas for fast and cheap transactions.For example, Arbitrum manages 40,000 transactions per second (TPS) against the 14 produced by the Ethereum blockchain. Ethereum’s transactions can be very costly, hitting hundreds of dollars in times of high user traffic, whereas transactions are only a couple of cents on Arbitrum.Arbitrum is also fit for developers who wish to integrate their Ethereum DApps with the platform since they are perfectly compatible. Indeed, Arbitrum supports the Ethereum Virtual Machine (EVM) contracts and Ethereum transactions on L2 while benefiting from Ethereum’s prime L1 security. Arbitrum is not the first or only platform built to overcome Ethereum’s limitations since other solutions provide similar features. However, none of them allows for such a unique combination of benefits.Here’s an outline of the most significant advantages Arbitrum offers:How to access the Arbitrum blockchainTo access the Arbitrum blockchain, users need to set it up through a compatible cryptocurrency wallet. This article will explain how to add Arbitrum to MetaMask, the most popular of Ethereum’s wallets.MetaMask is a crypto wallet that allows users to access the Ethereum mainnet and its Web3 DApps and NFTs, other than store Ether (ETH) and ERC-20 tokens. MetaMask is both a browser extension and a mobile app and provides users with a key vault, secure login, token wallet and token exchange to easily manage digital assets. It’s widely used to connect blockchain-based applications securely while protecting users’ privacy. To connect the MetaMask crypto wallet to the Arbitrum network, users will need to follow a few simple steps and add some blockchain information to MetaMask, including a chain ID, a custom remote procedure call (RPC) URL and a network name. You will also be able to add one or more of the Arbitrum tokens by importing the correct token address.How to install and set up MetaMaskMetaMask can be added as an extension to Chrome, Firefox, Opera, Brave browsers and iOS or Android on mobile from the MetaMask website. Chrome browser steps will be discussed later in this article.It’s essential that users verify the legitimacy of the MetaMask website to avoid being tricked into fraudulent pages. Downloading the right extension from the official website is strictly recommended.From the MetaMask website, click “Download for Chrome” and “Add to Chrome” to add the extension.Install the MetaMask Chrome extension and click “Get Started” on the MetaMask welcome page.To import your existing wallet, you’ll need the wallet seed phrase; click on the “Import wallet” option.You can also set up a new wallet by clicking on the “Create a wallet” button. Here, you have to create a secure password to access the wallet from your device.On the next page, you will view essential information about your seed phrase. The seed phrase, or recovery phrase, is your wallet’s most crucial security feature and backup that will allow you to access your wallet even if you lose or forget your password.Next, you’ll view the seed phrase by clicking the lock button. You’ll have to take note of the words in the proper order, store it securely offline and never share it with anyone. Your assets may be at risk if someone gets access to your seed phrase.The system will ask you to repeat the seed phrase on the next page; make sure you select the words in the correct order.Click “Confirm” to finish and then “All Done” to access your new wallet.The process just described will connect MetaMask automatically to Ethereum. However, to add Arbitrum on MetaMask, complete the following few steps below.How to connect Arbitrum on MetaMask? MetaMask supports several other networks besides Ethereum. However, they are not enabled by default and must be added manually. To add Arbitrum on MetaMask, you need to provide some network data:Open MetaMask and click the network dropdown menu near the MetaMask fox logo.A pop-up will appear, then click “Add Network.”On the next page, you’ll need to add the following Arbitrum network data: After adding the above details, click “Save.” You’ve now added the Arbitrum layer-2 network and are ready to use it.To add Arbitrum tokens to MetaMask, you must also add them manually. You will still receive the tokens, even if you haven’t added them yet to the wallet. However, they won’t show up until you import them manually.Head to https://arbiscan.io/, an Etherscan-based block explorer for Arbitrum.Here you can find the details of the token you want to add. If you can’t find your token, you’ll need to add the contract address manually from the project’s official website. Always ensure you are using a legitimate smart contract, as there could be a fake one created by scammers.Go back to MetaMask and click “Import Tokens.”Add the token’s contract address on the next page and the rest of the details required. This action should be filled out automatically by MetaMask.Click “Add Custom Token” and then “Import Tokens.”Your wallet will now display the balance of the tokens you just added.Once you set up MetaMask and add the Arbitrum mainnet to it, you’re ready to start using cryptocurrency efficiently and cheaply. You can send and receive crypto, collect NFTs, use Web3 applications, DApps, smart contracts and even swap cryptocurrency coins or tokens. You’ll be able to do everything you can already do in Ethereum with Arbitrum, but more cheaply and efficiently. You’ll just need to ensure you have enough Ether (ETH) in your wallet to pay for your transaction costs. You can add ETH to your wallet by connecting the Arbitrum bridge to the Ethereum mainnet.How to use the Arbitrum bridgeYou can connect to Arbitrum to bridge your assets, discover the Web3 DApps and transact for less, paying lower gas fees on Ethereum. To send your ETH from layer 1 Ethereum to layer 2 Arbitrum, follow the steps:Connect your MetaMask, and go to https://bridge.arbitrum.io/. The screen below will appear:Enter the amount of ETH you want to add on Arbitrum and click “Deposit.”Next, you will have to confirm the transaction in your wallet. Even though this transaction is executed on layer 1, the Arbitrum lower gas fees will apply. Once you’re happy with the amount, click “Confirm.”The transaction will now appear as “pending” at the bottom of the screen on the next page.You now have ETH on Arbitrum and can start sending and receiving it.Since Web3’s rapid expansion of NFTs, the Metaverse and DApps in the last couple of years, Ethereum’s extremely high fees have hindered further development and discouraged more industry participation across the board. L2 networks like Arbitrum could help overcome the scalability issue to allow users to keep exploring the value of the new tech.Learning a few different steps to connect the Arbitrum network to your MetaMask and bridge your ETH could just be worthwhile to enjoy the benefits of Web3 sustainably.Purchase a licence for this article. Powered by SharpShark.

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How to earn interest from crypto saving accounts?

The cryptocurrency industry has offered developers and investors the opportunity to introduce new financial tools providing plentiful options to earn passive income. Simply holding crypto has offered patient investors the chance to make gains over the years. However, there are various other ways to increase crypto assets’ stacks, even in bear markets.Other than staking, crypto savings accounts allow retail investors to accrue their funds by earning interest on the crypto assets they deposit on specific cryptocurrency platforms if they agree to lend out their coins or tokens. Crypto interest accounts are particularly appealing because they distribute much higher returns than traditional bank savings accounts, considering that the average interest rate applied by a crypto savings account can be up to 7.5%, against the average 0.06% of bank savings accounts.Related: DeFi staking: A beginner’s guide to proof-of-stake (PoS) coinsThe difference in rates between crypto and traditional savings accounts is somewhat significant but comes with higher risks associated with the service. We’ll find out here how to access crypto savings accounts, the crypto interest rates and deposit terms and the risks associated with this type of financial instrument. What is a crypto savings account?A crypto interest account is generally a DeFi platform’s service that lets you earn interest on digital assets you’ve deposited and agreed to lend out in exchange for a return. This service is similar to a bank savings account that will lend out your money to other customers or financial institutions for a certain amount of time and will give you interest for that service. By definition, blockchain technology encourages users to become self-sovereign and independent from third parties. However, intermediate companies have become a necessary component of the industry providing crypto savings accounts to those who want to enjoy the benefits of the technology without making too much effort to learn complicated and burdensome processes.Other than convenience, these companies will also hold some of the risks involved and ensure depositors are paid first if adverse events like insolvency occur. Some companies are backed by insurance and work with well-established custodians to protect their customers.How does a crypto savings account work?Once you deposit your crypto assets into a savings account, you start accruing interest from day one. Most of the popular cryptocurrencies can be used in a crypto savings account, with the most picked being Bitcoin (BTC), Ether (ETH) and Litecoin (LTC), while many favor interest rates on stablecoins like Tether (USDT), USD Coin (USDC) and PAX Dollar (USDP).By depositing your crypto assets into a savings account, you formally grant the platform the right to use your money for any purpose, from lending it out to investing it or staking it on your behalf. Primarily, it will be used for lending it out to earn high returns, some of which will be paid to you as regular interest payments.Crypto savings accounts may offer you more favorable rates if you agree to lock up your crypto for a while or hold a platform-specific token. Nexo, for instance, increases interest rates by up to 4% for holders of the platform’s governance token.How to invest in a crypto savings plan?When you want to invest in a crypto savings plan, the first step is to pick the right account for you and get started as follows:Choose a cryptocurrency platform you trust that offers realistic interest rates;Transfer cryptocurrency to this chosen platform;Follow the few simple steps to deposit your crypto assets into a savings account. Usually, these steps are straightforward, and you’ll be guided through the process by the platform;Choose if you want to deposit your asset for a limited amount of time or select a flexible time that will allow you to withdraw your crypto at any time; Start earning interest from the first day.As mentioned, there are plenty of platforms to choose from, including well-established cryptocurrency exchanges like Coinbase, with the following indications of interest rates on fixed savings:Binance is the other global popular crypto platform that offers interest rates on many cryptocurrencies with flexible savings and locked savings options:An increasing number of other financial service companies and cryptocurrency platforms provide these types of accounts. Nexo and Crypto.com are among companies offering greater interest rates to cryptocurrency holders who lock their assets away for weeks or months. However, the drawback with this type of savings account is that you can’t withdraw or sell your crypto during that period.How much interest you can earn with a crypto savings account largely depends on the platform and the cryptocurrency you choose to deposit. The interest rate offered by the service will also be driven by market conditions and is usually paid out in the cryptocurrency you have deposited.While their high-interest rates can entice you, you should consider how secure your investment is with them. Choosing the best crypto interest account is not simply a matter of comparing interest rates paid but also making sure your investment is as safe as possible. Remember, they are custodians of your crypto assets, meaning that by holding your funds, they can even stop you from withdrawing them or delaying the withdrawal process, which may result in a loss for you if the value of the crypto asset changes in the meantime. When choosing the best interest rates, make sure you understand the difference between the annual percentage rate (APR) and the annual percentage yield (APY) because they might mislead you in calculating your yearly returns.In short, APY includes a compound interest, i.e., the addition of interest to the principal sum of a loan or deposit (the interest on interest accrued). On the other hand, APR does not include compound interest. Due to the compound interest factor, APY will provide a higher return than APR. Yet, it’s always worth reading the savings account’s small print because certain services will pay simple interest only and won’t produce compound interest over time. Crypto saving account risks The crypto industry is mostly unregulated, so the investors might not have any cover in case something goes wrong with their assets. In this framework, operate crypto savings accounts that do not offer government-backed deposit insurance like the Federal Deposit Insurance Corporation (FDIC) or the National Credit Union Administration (NCUA). These savings accounts offer higher yields because they are riskier. For example, they could limit how quickly you can withdraw your assets and, in times of difficulties, they might not let customers withdraw their assets at all.In exchange for these restrictions and the associated risk, these savings accounts are much more interesting for an investor than a typical bank account. However, for these accounts to yield such a high interest which may exceed 20% in some cases, you should wonder how your money is employed in the background. Like regular banks operate under a “fractional reserve” banking service, so do most crypto companies. They are lending out more than they have to financial institutions with the difference that there is no deposit insurance to back them, as in the case of traditional banks. Crypto savings accounts vs. crypto walletsCrypto wallets simply won’t accrue your cryptocurrency holdings as opposed to crypto savings accounts that are conceived to increase the number of coins you own over time.This might be at the expense of key ownership, though, because the private keys that allow you to access your coins are maintained by the crypto platform. On the other hand, most crypto wallets will ensure you keep full ownership of your private keys.Security is another concern that should be very well addressed. There are security risks in the centralized platform that holds your private keys because it is potentially at risk of becoming insolvent, bankrupt or being hacked, and you could lose your money.In the same way, you should choose a wallet carefully to avoid picking a service with little security and a vulnerability to hacking. Also, you must ensure you can easily access your wallet’s private keys if you lose your operational device and need to restore your assets in another digital location.Cryptocurrency is a work in progress and will likely undergo continuous changes over the years, especially in terms of regulation, which will also affect how crypto savings accounts are managed. In June 2022, the issues of leading crypto lending platforms like Block.Fi and Celsius have raised further concerns over the future of crypto savings accounts and similar related cryptocurrency services.Related: A step-by-step framework for evaluating crypto projectsCaution and due diligence are always recommended if you consider opening a crypto savings account and weigh the associated risks against the chances of high returns, especially if you risk life savings or anything close to that.

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What are Bitcoin covenants, and how do they work?

Various prominent Bitcoin experts, including Adam Back, Jimmy Song and Andreas Antonopoulos, have raised some concerns over the implementation of restrictive covenants, in particular with the BIP119. In particular, Antonopoulos has voiced concerns over “recursive covenants” that the new update could convey, thereby deteriorating the network. A recursive covenant occurs when a programmer restricts a transaction, but he does it in a way that restricts another transaction after that, starting a domino effect resulting in future limitless recursive covenants. Blacklisting and risks of censorship and confiscation While locking up where a Bitcoin can be spent is advantageous to ensure more security, it also provides grounds for censorship, and control by governments, which would hinder the very existence of Bitcoin. Authorities could potentially force exchanges to withdraw only to covenants with some control over the coin. While this same risk already exists, since governments can ask exchanges to send only to addresses with a taproot spend path or multi-sig controlled by them, could the implementation of covenants facilitate malicious purposes where it would make it easier for governments to enforce a sort of on-chain KYC?  Fungibility threats Covenants might interfere with Bitcoin’s fungibility — the ability of each Bitcoin to be identical in function and quality. While useful for security and scalability, covenants would change the properties of specific Bitcoin units, essentially creating different types of digital currency, distinct according to what could be spent or where it could be sent.  As a result, those who oppose the change argued that limiting how you can spend your Bitcoin would ultimately limit Bitcoin’s use as a digital currency, with inevitable consequences in its value. There are strong opinions on covenants’ pros and cons; however, debates are healthy and necessary to improve a decentralized and leaderless network. Ultimately, the final decision will be down to the users and node operators who will download the software that better reflects their viewpoint.

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What are Bitcoin improvement proposals (BIPs), and how do they work?

Gathering significant consensus within the community is the first step of the process. Sometimes, even the most valuable proposals can take years before they are approved or rejected because the community can’t find an agreement. Once a BIP is submitted as a draft to the BIP GitHub, the proposal gets reviewed and worked on transparently so that everyone can view its progress and consequent testing outcomes. As Bitcoin blockchain is based on code, protocol changes will have to be reflected in the code, and miners will have to add a reference to their hashed block to signal that they accept or reject their implementation. Because of the severe implications some changes might inflict on miners, a modification in the code requires acceptance by a vast majority of around 95% unless a reasonable motive is given for a lower threshold. Ninety-five percent support will have to be signaled from the last 2,016 miners (approximately 14 days worth of mining with 10-minute blocks). As an example, we’ll use the recent implementation of the Taproot soft-fork, labeled as BIP 341. In April 2021, via the means of a “speedy trial code” – meant to give a quick resolution to the upgrade – the Taproot activation was merged into Bitcoin Core. In the following couple of weeks, at least 90% of the blocks mined (1,815 out of 2,016 blocks mined) included an encoded reference indicating that the miners who mined those blocks favored the upgrade. This paved the way for the astonishing consensus achieved in the following months, leading to the final approval in November 2021. The final and official approval of a BIP happens automatically when users (node operators) choose which Bitcoin Core version to download and run a node that reflects that change. Then, all upgraded nodes can recognize and accept transactions made using that upgraded protocol. In summary, these are the main steps of the approval process: Anyone can submit a BIP to change Bitcoin core; An editor must pass the BIP; The BIP must be approved by ∼95% of miners; and The community must upgrade to the new software version. Here’s a graphic of the BIP approval process:

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What is total value locked (TVL) in crypto and why does it matter?

In 2022, Ethereum appeared as the largest network by DeFi TVL, accounting for over half of the total DeFi volume worldwide. To give some perspective, the Ethereum DeFi network includes just under 500 protocols. It has a TVL of approximately $73 billion, with 64% of the market share, compared with BNB Smart Chain, which is the second-highest TVL at $8.74 billion in value at 7.7% of the market share, Avalanche with $5.21 billion and 4.5% of the market share and Solana with $4.19 billion and 3.68% of the market share. It’s very easy to read a TVL crypto chart. It represents the TVL for the entire DeFi market is expressed in USD, with the percentage of movement in the last 24 hours and the crypto with higher dominance. The total value locked metric across all chains clearly indicates that Ethereum is the network with the highest TVL. In essence, TVL is an excellent indicator for the DeFi area of cryptocurrency and probably the most utilized to assess the health and growth of the market. While TVL growth signals a positive outlook for the market, however, its reliability must be taken prudently, as it is nearly impossible to interpret the indicator with precision.  Market volatility is one of the main variants that can highly affect the value of locked assets, starting with the price of ETH, whose platform is where most assets sit. The considerable increase in the price value of ETH inevitably affected the TVL of DeFi from 2020, but that means the total value locked can increase without any new users or capital coming into DeFi. Furthermore, because of the nature of DeFi services, money can easily move around and be counted multiple times, thus miscalculating protocols’ liquidity capacity. As with every indicator, TVL is only an estimate of the market’s condition and because of its flaws and approximation, it should not determine an investor’s strategy.

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