Heard about the blockchain trilemma? Find out why developers are struggling to solve this issue of balancing scalability, decentralization and security.

The world around us is all about the trade-offs we make to achieve certain results. The blockchain trilemma is no different, so it’s crucial to understand whether the problems associated with blockchains can ever be solved. Developers are pouring time and energy into solving this problem, and we’ll look at how blockchain scalability, security and decentralization can work together. These three features are fundamental to how blockchains function, with a growing acknowledgment that you can only get two out of the three. That means every blockchain must sacrifice something to work as efficiently as possible.

The blockchain trilemma is the concept that decentralization, security and scalability can’t all be represented in one blockchain.

An Example of the Blockchain Trilemma: Bitcoin’s Scalability

The issue that Vitalik Buterin was talking about is whether or not it’s possible to achieve all three of these features in a single network. Many developers have concluded that achieving all three features is impossible, and that it comes down to making do with what 

 possible with the current technology — and figuring out how to make the trade-off in a real-world environment. As much as each project tries to optimize their network, there will be some shortcomings with each blockchain design. Thus, the key for developers is to figure out how much of each characteristic they’re willing to sacrifice in order to achieve optimal performance.

However, because of this, they control everything to get you transaction times that are shorter than a second. On top of that, the transaction fees are relatively low when compared to many other networks. Because of this, many people are moving toward a cashless society that will remove the need to carry physical money around.

As you can see, blockchain decentralization negatively impacts a network’s security and scalability. Blockchain decentralization is crucial — because it requires that you sacrifice one other feature to have the most optimal network possible. Ultimately, blockchain decentralization is better when one entity or individual doesn’t control the entire network. However, blockchain scalability or security are sacrificed when prioritizing blockchain decentralization.

Unfortunately, blockchain scalability is a significant problem that has kept many cryptocurrencies from being used on a mass scale. In order for a blockchain to be practical, it needs to progress to a stage where it's subjected to thousands of transaction requests and is able to process them rapidly.

Ideally, projects would want their blockchain to be able to scale to millions of 

 (TPS). This is one of the many reasons why Visa and MasterCard are used all over the world. After all, no one would use these cards if you needed to wait 20 minutes or more for your transaction to be processed — and no store would want to use this network if they had lengthy lines because it took so long to process transactions. Blockchain scalability needs to be built in because developers need to figure out how to make it work for specific use cases, rather than just looking at 

Blockchain security is the third feature many networks might choose to relax when it comes to the blockchain trilemma. Good blockchain security means that everything should be robust so that no one can take over the network — for example, capitalizing on network vulnerabilities to insert transactions into a network. 

The major downside to maintaining blockchain security is that it takes a lot of processor power to achieve it. This might be a problem if blockchain decentralization goes into effect as well. When you combine this necessity with the realities of blockchain decentralization and scalability, it means you have to expand processing power tremendously to achieve a small improvement in your TPS rating. These are the things that blockchain developers must balance out when trying to build a network. They have to figure out which one of the three they want to sacrifice.

With blockchain decentralization, another issue is consensus. What is the correct transaction for each ledger? When you’re writing a transaction into the blockchain ledger, how do you ensure that the transaction gets correctly updated to all of the nodes? This takes a lot of processing power — which is why it’s important to understand how to balance security with other features inside a blockchain network. Blockchain security is only going to become more important as its utility increases. An example of security gone wrong is with blockchains that use smart contracts.

The general idea with blockchain security is that it works in retrograde to blockchain scalability. Blockchain security requires that you use additional processing power to ensure that no one exploits the network. However, the major problem with this is that, as a consequence, there is now less power to process transactions. Developers have to decide between processing more transactions or maintaining enhanced security. On top of that, the more decentralized a network is, the longer it’s going to take to reach consensus — making it even more difficult to achieve ideal simultaneous blockchain decentralization and security. Many people are currently attempting to figure out how to make both of these concepts work correctly, without major downsides to the network.

An example of a secure network is Visa, mentioned above. It offers a credit card processing network that delivers millions of TPS. Despite this, blockchain security is never an issue with them. We almost never hear about anything being exploited. However, when something does happen, it’s usually because the vendor has done something prohibited. It’s never the credit card processing company itself with problem that’s been exploited. 

Most blockchains are quite secure, and security breaches aren’t an ongoing problem for most networks. However, as mentioned, security comes at the price of scalability. This has many people thinking of various ways they can improve security and transaction processing capability — without destroying the essence of the network.

Different Approaches to the Blockchain Trilemma

In addition, Avalanche’s minimal hardware requirements are impressive. One can start as a validator with inexpensive hardware for less than 1/10th the price of the hardware needed to become a validator on the Solana network.

It’s clear that being a validator is important for both blockchain decentralization and scalability. However, not many people are incentivized to become validators. Doing so is often too expensive or complicated to make it work, limiting its benefits to just a few

Potential Solutions to the Blockchain Trilemma

There are a few potential solutions to the blockchain trilemma, to be implemented independently. Many developers are also figuring out how to achieve the blockchain trilemma on each part of a network.

Polkadot’s Relay Chain allows multiple blockchain networks to connect to each other quite easily because they can connect to plenty of networks without the downsides inherent to the blockchain trilemma. Parachains run in parallel to the Polkadot blockchain. They use the Polkadot Relay Chain to achieve maximum scalability, security and governance.

Sharding splits up the blockchain and separates it across multiple validators. It’s a risky way of doing things because of the theoretical possibility that all validators holding a certain shard might go down. In this case, the entire piece of the blockchain would be lost. There are several algorithms to prevent this from occurring, which is one of many ways to improve the process Ethereum offers shard chains as a way of improving scalability. This method splits the entire blockchain horizontally, putting the load across multiple servers and making it possible for network participation and processing power to increase geometrically.

A nested blockchain exists within another blockchain. Layer 1 blockchains delegate processing to a nested blockchain, meaning that custom processing solutions can be created relatively easily. This is one of the best and easiest ways to solve the blockchain trilemma without too much difficulty. The biggest example of this is Ethereum Plasma, which uses a separate blockchain that’s anchored to the main chain, capable of offering proof of fraud to arbitrate disputes.

A state channel essentially has delegated transaction processing and capacity. Its nodes don’t require validation, meaning that it’s like an adjacent resource that does what it needs. The Layer 1 network only requires that the final state of the channel be recorded into the blockchain.

A sidechain is essentially a separate blockchain that connects to the main blockchain by using a two-way peg. It increases the existing blockchain’s interoperability and processing power. For example, Bitcoin’s network can use sidechains to process transactions even faster. This is one of the many ways people are getting more performance out of Bitcoin, even when technically it shouldn’t be possible.

There is no one solution when looking at how the blockchain trilemma can be solved. It’s theoretically impossible to achieve the Holy Grail. The best that we can do thus far is to optimize each blockchain as much as possible to achieve its stated goal. We might experience a future with virtually infinite computing power and geometrically faster network transfer speeds. In that environment, the blockchain trilemma could be solved relatively easily. It would stop being a problem because transaction speeds would be propelled “to the moon.”

The blockchain trilemma is currently a major problem for most developers. However, like anything else, once we understand the nature of the problem, we have a much better chance of finding a solution to it. Many developers are working on the complexities of the blockchain trilemma, and they’re quite optimistic — so we should be too.

Advanced

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The Blockchain Trilemma: Can It Ever Be Solved?

Although Ethereum has been running on the Proof of Work (PoW) mechanism so far, things are set to change in 2022. In this article, we detail Ethereum's upcoming switch to Proof of Stake (PoS): what the blockchain's current issues are, why it's switching to PoS and more.

With new tokens and platforms being developed all the time, an apt word to describe the crypto industry would probably be “dynamic.” While new cryptocurrencies pull out all the stops to break into the market, well-established cryptocurrencies are faced with the challenge of maintaining their rankings amid fierce competition. One way to do so is to constantly look at their offerings, and adjust/reinvent themselves in tune with consumer needs.

Ether, the second most popular cryptocurrency after Bitcoin, has enjoyed a much higher rate of adoption and growth than the latter in merely the first five years of its existence. Still, the platform is plagued by a number of issues such as high gas fees and slow transaction speeds, and its competitors are catching up 

. Change is imminent, and Ethereum is stepping things up — with big changes listed in its road map. 

This article will explain everything you need to know about Ethereum's forthcoming upgrade, with information about what Ethereum is, why the Ethereum blockchain is switching to the 

 (PoS) consensus, and how the move will help solve the issues currently faced by the network.

Ethereum is a community-run technology powering the Ether cryptocurrency (ETH) and thousands of decentralized applications (DApps).

The network allows users to send crypto to anyone by paying a small fee. Ethereum also powers various applications that can be used by everyone, but can't be taken down by anyone.

Known as the world's programmable blockchain, Ethereum has built on Bitcoin's innovation. It comes with a number of significant differences and improvements.

Both Ethereum and Bitcoin allow you to use digital money without intervention by payment providers or banks. However, Ethereum is programmable, and can therefore be used to send many digital assets, including Bitcoin.

Ethereum is designed for more than payments — it’s a marketplace of financial services, apps and games that cannot censor you or steal your data.

 network, which is a decentralized, distributed public ledger that verifies and records all transactions. The Ethereum network is not operated or managed by a centralized entity — it’s managed by all of the distributed ledger holders. All participants have access to a copy of the Ethereum ledger, which includes details about all previous transactions.

 to verify transactions and keep the network secure. People use computers to solve complex mathematical equations (also referred to as 

), whereby each transaction on the network is confirmed, and new blocks can be added to the 

 at the heart of the system. Miners are rewarded with crypto tokens — e.g., ETH for Ethereum participants.

Like Bitcoin, ETH can be used to purchase and sell goods and services. However, Ethereum is unique in the sense that users can build their own applications that run on the Ethereum blockchain, like how software runs on a computer. These Ethereum-based applications can store and transfer personal data and handle complex financial transactions.

Proof of stake, or PoS, is a crypto consensus mechanism that helps process transactions, validate entries on the blockchain, and create new blocks while securing the blockchain.

PoS reduces the computational work required to verify blocks and transactions that keep the blockchain and its cryptocurrency secure. It changes how blocks are verified using the coin owners' machines. The owners put their coins up as collateral for the opportunity to validate blocks. 

 their coins are referred to as "validators." Validators are then chosen at random to 

 or validate a block, rather than the consensus being based on a competition-style mechanism such as proof of work (

If a coin owner wants to become a validator, they must first stake a specific amount of coins. Ethereum users must stake 32 ETH to become a validator. The blocks are simultaneously validated by more than one validator. After the block has been validated by a specific number of validators, it is finalized and closed.

Different PoS mechanisms use different methods for block validation. When it transitions to PoS, Ethereum will use 

 for transaction submissions. A validator will verify transactions and add them to a shard block, which requires attestation by at least 128 validators. Once the shards are validated and the block created, at least two-thirds of the validator pool needs to agree that the transaction is valid for the block to be closed.

Why Is Ethereum Switching to Proof of Stake?

 projects, the Ethereum network has grown tremendously in the last year.

So far, Ethereum has been the preferred network for developers working on NFT or DeFi projects, with over 200 DeFi projects currently hosted on the its blockchain. This increased adoption has led to a substantial rise in the number of transactions made on the Ethereum network. On the flipside, there’s also been a noticeable increase in the number of problems encountered on the network.

With more transactions occurring, miners have had to expend more computational power for the verification of transactions. This higher computational power consumes more energy, to the point where users have begun to evaluate the network’s 

At present, Ethereum uses 113 terawatt-hours (

 is equivalent to what the entire population of the Netherlands uses in a year. A single Ethereum transaction can consume the same amount of power as an average U.S. household in about a week.

This high energy consumption has become a significant concern among the scientific community, which has started to warn Ethereum developers about the negative impact of the network's

 on the environment. Since then, the PoW consensus mechanism has faced scrutiny by global lawmakers. In Sept. 2021, 

, partially over mounting environmental concerns.

The Ethereum network is also quite slow, with a current rate of only 15 transactions per second (

) — significantly slower than competitors like 

, whose TPS rates are in the hundreds and thousands, respectively. Another issue faced by Ethereum is its

 (transaction costs). Users pay exorbitant fees to have their transactions verified with the current PoW mechanism.

PoS: The Solution to Ethereum's Current Problems

Switching to PoS will decrease the amount of computing power required to process transactions, making Ethereum more environmentally sustainable. However, lower energy consumption isn’t the only benefit to be effected by 

After implementing the PoS consensus mechanism, Ethereum 2.0 will ostensibly use 99 percent less energy, allowing the network to scale and potentially perform as many as 100,000 TPS.

When Is Ethereum Switching to Proof of Stake?

Ethereum plans on transitioning its entire network to the PoS mechanism in a dramatic event called 

Ethereum's PoS approach has already been tested on the 

, launched on Dec. 1, 2020. As of March 2022, 9.5 million ETH ($37 billion in current value) has already been staked.

There are still two phases to go, but the full release of Ethereum 2.0 is expected in Q2 of this year (2022).

Proof of Stake (PoS) vs. Proof of Work (PoW)

With PoW, the probability of mining a block is determined competitively and is based on the size of the stake the person holds (i.e., the number of coins they possess).

With PoS, randomly selected miners are selected to validate transactions. The amount of computational work done by miners determines their probability of mining a block.

On a PoS blockchain, the block creator is selected by an algorithm based on users' stakes, rather than being determined by competition.

With PoS, the validator collects network transaction fees as a reward for completing a block.

PoS miners, on the other hand, can easily work with a standard server-grade unit. The only prerequisites they need to meet are securing a stake and building a reputation.

However, with PoS, it’s practically impossible for hackers to add a malicious block — as they would have to own 51% of all the cryptocurrency on the network to do so.

PoS systems, on the other hand, are less proven but much more cost- and energy-efficient than PoW systems.

 on March 16, 2022. In this decision’s direct aftermath, the value of ETH and a number of other cryptocurrencies increased. In general, rising interest rates hurt growth stocks. However, in this case, the declines had been priced in since January, so the market saw the rising rates as a good way to reduce inflation in the U.S. economy.

However, Ethereum faces a direct threat from faster and more efficient competitors eating into its market share. The network plans to address this challenge with Ethereum 2.0, which replaces the current PoW consensus mechanism with PoS. This change in approach will make the network faster, increase transaction capacity, reduce costs, boost security and decrease energy use, bridging the gap between Ethereum and key rivals like 

The Ethereum 2.0 upgrade is scheduled to conclude in 2023. According to analysts at

, ETH has the potential to cross $3,200 by end 2022, a +27.90% increase on its current price of $2,921 per coin.

It’s reasonable to presume the upgrade will boost the Ethereum network and help maintain its dominance in the DApp space. Given its branding, market dominance and planned upgrades to its infrastructure, Ethereum is without a doubt a solid long-term investment option. 

(Editor’s note: The views expressed above must not be considered investment advice. There is a lot happening right now, and 

. Please be cautious, conduct thorough research, and invest only what you can reasonably stand to lose.)

 on an exchange like Bybit. Here’s how you can 

 by filling in details such as your name, phone number, email ID, address and other 

 If you don't already possess USDT, USDC, UST, BTC or DAI, you’ll first have to buy one of these tokens using a credit card, debit card or bank transfer.

 You can then complete your transaction at a price of your convenience using a

. Select the crypto with which you wish to buy ETH, enter your order price, and select the amount of ETH you want to acquire. If the token price reaches your specified amount, your order will execute and the ETH tokens will reflect in your account.

The Ethereum network is switching to the PoS system, and we’re excited by this major (and possibly industry-changing) move. While Ethereum’s impending upgrade to 2.0 is something to look forward to (with high expectations in the crypto community), only time will tell whether it lives up to its promises. In the meantime, be sure to 

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Ethereum's Switch to PoS: What We Know So Far

Wondering what is Arbitrum? From lower costs to faster transaction speeds, here's all you need to know about Arbitrum's scaling potential.

Ethereum has grown so much that it’s having trouble keeping up with demand. Powering almost 

, completing over 200,000 transactions per day with over 90,000 daily active users, it’s become apparent that even Ethereum 2.0 won’t be scalable enough long-term. That’s why Ethereum scaling solutions such as Arbitrum are crucial to the long-term success of the Ethereum blockchain. 

Layer 2 solutions, including sidechains, channels and rollups, provide Ethereum users and developers with increased speed and security without the price tag. Let’s discuss what is Arbitrum and how it takes rollups to the next level — for both beginners and advanced crypto enthusiasts.

What Is Arbitrum and What Is It Used For? 

Arbitrum is an Ethereum scaling solution designed to facilitate more transaction volume on the blockchain network at a lower cost. It uses the same tooling as Ethereum, so DApp developers can quickly, easily and securely deploy apps on Ethereum using Arbitrum. 

In short, for those wondering what is Arbitrum and what it’s used for, Arbitrum is meant to 

, prevent fraud and lower the cost of operating on the Ethereum blockchain network. This Ethereum scaling solution will make DApp development seamless, fast and secure by providing developers with an Ethereum-based platform that limits data stored on-chain. 

Ethereum scaling solutions are used to make 

 networks faster and increase their ability to handle a high volume of transactions. Examples of Layer 1 networks include Ethereum and Bitcoin. Layer 1 solutions aim to alter the protocol of the blockchain network itself, instead of adding an additional processing layer. 

, which means it’s an extension to Layer 1 that’s enabled by smart contracts which are built on-chain. Arbitrum creates additional space for transactions to be processed. The solution executes transactions off-chain before reporting back to the mainchain, enhancing speed, lowering costs and maintaining the 

To develop a deeper understanding and know what is Arbitrum along with its uses on blockchain networks, let’s talk about some different types of Layer 2 Ethereum scaling solutions and discover where Arbitrum fits into the mix. 

Sidechains are where Layer 1 scaling began. Sidechains work by running a parallel blockchain network alongside the 

, and processing transactions off-chain. Although sidechains are essentially extra Layer 1 space, they aren’t secured by Layer 1, and are less decentralized. The problem is they can be manipulated by fraudulent validators, and the security standards may vary from chain to chain. 

Sidechains represent a shift in how developers intend to execute transactions using blockchain. Instead of maintaining a single ledger, sidechains introduce a blockchain model built with numerous layers integrated into the main blockchain network. 

 framework offloads transaction execution to sidechains — but with a twist that ensures extra scalability. Through the use of smart contracts and 

, plasma enables an unlimited number of sidechains, or child chains, to be created and designed to work in a specific way to meet the various needs of the main blockchain network. 

, which ensure secure and enforceable exchangeability. That means any user can send funds to another user in their native platform coin faster and with less latency.

Going deeper down the blockchain scalability rabbit hole, we arrive at state channels and payment channels. Channels are 

 that allow users to make a certain number of off-chain transactions with only two transactions occurring on-chain. 

Participants have to create and fund an Ethereum transaction when they open up a new channel. While the channel is open, off-chain transactions can occur. When users are ready to close the channel, they are charged again to process the transactions. 

The channel mechanism decreases the number of transactions processed on the Ethereum network and limits gas fees to opening and closing the channel. 

More specifically, payment channels are meant to transfer funds between users, and state channels are designed to create a fee-less conduit between two parties by locking up a portion of the blockchain. Because everything occurs within the sidechain channel between two participants, it’s a highly secure solution. But it lacks the ability to scale at higher volumes. 

Before diving into what is Arbitrum, we’ll first need to discuss rollups. Rollups have become one of the most popular contract-based scaling solutions for blockchain applications. Rollups scale the mainchain by essentially “rolling up” transactions into a batch, and validating them off-chain. By rolling up and compressing the data, rollups allow higher throughput, more speed and lowered transaction costs. 

There are two main kinds of rollups: ZK (zero knowledge) and Optimistic Rollups.

, or “zero-knowledge scalable transparent arguments of knowledge,” to validate data and perform computations off-chain. The validity proof is attached to each data bundle while still having the ability to perform increased numbers of transactions. The 

 represents powerful security, since it’s publicly verifiable proof that something is true without having to reveal its state, what it is, and in what amount. 

Optimistic rollups limit on-chain computation by performing proof of confirmation only if a node suspects that a fraudulent transaction is occurring. By performing validity proofs only when fraud is suspected, optimistic rollups increase transaction speed and throughput even further. 

If you’ve ever wondered what is Arbitrum, it’s an advanced Optimistic Rollup that stores very little data on-chain for optimal scalability. Arbitrum is built on the Ethereum network and allows for up to 

 per second (TPS). That‘s faster than 

 (Consensus Layer) expectation of about 3,000 TPS. Arbitrum works with all Ethereum developer tools, including the EVM (Ethereum Virtual Machine) smart contract. Numerous integration options provide standard Ethereum front-end tooling for Arbitrum, making it easy to work with — and simple to build and deploy DApps. 

Now that you know what is Arbitrum, it’s now time to understand how it works. Arbitrum follows the off-chain Optimistic protocol managed by a contract on the Ethereum chain. In a nutshell, it works by validating transactions off-chain before sending confirmation back to the blockchain. Developers can create smart contracts 

, and then compile them into code that runs on the Arbitrum virtual machine. 

A Merkle tree organizes the state of the Arbitrum virtual machine so that the cryptographic hash value can be calculated. The hash is then stored on-chain so that the state can be fully confirmed and finalized. Only the hash values of the final state are stored on-chain. 

The state of the virtual machine is advanced when participants in an agreement propose a DA, or disputable assertion. The assertion says that the virtual machine will execute a certain amount when calculated. Each participant in the agreement needs to bet a deposit to ensure the assertion’s validity. 

If the DA is valid, the system will enter the new state. If the DA is invalid, it’s rejected by Arbitrum, and the state will not change. 

 to process multiple DAs, while the verification node takes care of how fast it can be processed. Additionally, malicious participants can’t delay the system as with other protocols. 

One of the most important things to understand about 

 is that there’s no need for trust. As long as there is one honest participant in an agreement, then the Arbitrum virtual machine will advance correctly, no matter if the correct branch is bet on or not. A path of trust is created over time as participants execute valid transactions with Arbitrum. 

How Arbitrum Overcomes Ethereum’s Limitations

Ethereum has gained a lot of traction since it first launched in 2015. But scalability has always been an issue, preventing the network from reaching its fullest potential. Without scalability, developers are also limited by what the network can do and how many transactions it can process. Essentially, blockchain technology has hit a wall regarding scalability — and that’s precisely where Arbitrum can propel Ethereum forward. 

What is the blockchain trilemma? Simply put, it means scaling, decentralization and security. It has proven difficult for blockchain projects to 

 of all three. Finding a solution to this blockchain trilemma can help change the way we think about cryptocurrencies and blockchain technology. 

Right now, blockchains rely on rollups like Arbitrum to complete the trifecta and create a secure, scalable and decentralized blockchain. Let’s talk about some of the ways that Arbitrum overcomes Ethereum’s limitations. 

Ethereum can only perform about 10 TPS, but Arbitrum can handle up to 40,000 

. That’s 4,000 times faster than Ethereum alone, the most widely used L1 platform in the world. 

A common problem among popular Layer 1 networks, such as Ethereum and Bitcoin, is high gas fees. Fees for 

 can cost anywhere from 1.5% to 2.3%. Arbitrum makes it possible to complete large volumes of transactions with much less gas — and they’re working on reducing fees even further. 

Arbitrum is the most EVM-compatible out of all the Layer 2 solutions, making it an easy pick for those who know what is Arbitrum. It’s easy to use, simple for developers to understand, and powerful enough to scale on the Ethereum blockchain. 

Arbitrum is especially beneficial for developers. It’s compatible with EVM and uses Solidity code, without compiler or version restrictions. There’s also no 

, so smart contract developers can take their projects to the next level. 

Even though Ethereum 2.0 supporters are convinced that rollups will be obsolete after its full rollout, it’s clear that Arbitrum rollups are aligned to reach unprecedented scalability. Some Layer 2 blockchains plan to release their own coins, but Arbitrum has indicated that it’s a transaction-focused organization. 

Arbitrum and Optimism built on what Polygon was unable to accomplish. Although 

 is free, Arbitrum and Optimism have features that other rollups can’t compare with. They’re both built directly into the Ethereum mainchain, providing optimal visibility and security. 

 have several similarities, it’s their differences that set them apart. Let’s discuss some of these similarities and differences in more detail — so that you can decide which rollup is the best option for your purposes. 

Similarities Between Arbitrum and Optimism

After going through the basics of scaling solutions and what is Arbitrum and Optimism, it’s important to understand that both Arbitrum and Optimism are considered Optimistic Rollups. We briefly covered these in a previous section about Layer 2 solutions, but now we’ll see how this plays a part in the relationship between Arbitrum and Optimism. 

Both Arbitrum and Optimism can condense several transactions into one single transaction. They then process the transactions outside the Ethereum blockchain before transmitting the data back to the mainchain. 

, Optimistic Rollups such as Optimism and Arbitrum can significantly reduce the time that it takes to complete a transaction on-chain. Additionally, they can both be implemented into existing smart contracts. 

A disadvantage that both Arbitrum and Optimism must contend with is that any challenged transactions can be held for one week. This is one way that the rollups attempt to prevent fraudulent transactions, but it can take some time if you’d like to transfer digital assets back to the mainchain. 

Differences Between Arbitrum and Optimism

At first glance, Arbitrum and Optimism seem to be identical Optimistic Rollups. However, one key difference sets the two apart — and it has to do with how they deal with fraudulent transactions. 

When Optimism processes a fraudulent transaction off-chain, the rollup sends the entire transaction back through the EVM. When Arbitrum processes a suspicious transaction off-chain, it only sends the suspicious part of the transaction back through the EVM. 

It is through this fraud-prevention mechanism that Arbitrum sets itself apart from Optimism. And because all suspicious transactions are processed off-chain, Arbitrum can achieve a higher transaction capacity than Optimism. 

Table 1: Product Features of Arbitrum vs. Optimism

Which Is Better — Arbitrum or Optimism?

At this point, it’s hard to say if Arbitrum or Optimism is better. With the rate of blockchain development rapidly unfolding, we could be looking at even faster and more secure Layer 2 solutions than we thought possible.

As it is, Arbitrum currently offers the most to users when it comes to security and fraud prevention. On the other hand, Optimism’s faster transaction time is good for users who want more liquid digital assets. 

If we had to choose (and we did), we’d pick Arbitrum. Arbitrum supports DeFi and DApps on the Ethereum network by increasing scalability and speed — without compromising security — while still maintaining low operating and trading costs. At the time of writing, Arbitrum 

 locked across Layer 2 networks since last year’s 

Looking toward the future, Arbitrum has more to offer the DeFi and blockchain community than any other Layer 2. 

Easy Deposits and Withdrawals on Bybit With Arbitrum

Finally understand what is Arbitrum and ready to experience it firsthand? Bybit makes it easy to deposit and withdraw ETH, USDT and USDC on the Arbitrum network. The platform allows users to enjoy the speed, security and cost-efficiency of trading on Arbitrum. 

Bybit is trusted by millions of users worldwide, and is one of the fastest-growing crypto exchanges. You can buy Bitcoin, Ethereum and USDT hassle-free with Bybit’s streamlined process and easy-to-navigate dashboard. With over 80 payment methods and nine fiat options, Bybit offers many ways to interact with crypto, including crypto market trading, P2P exchange,

Making deposits and withdrawing assets are streamlined with both Bybit’s desktop and mobile app. 

In a blockchain ecosystem that’s expanding and seeking interaction between a series of chains, Arbitrum’s scaling solutions provide a look into what the future of crypto and blockchain has in store. With unmatched speed, critical built-in security protocols and low operating costs, DeFi use cases are coming into focus with the help of its scaling potential as more users begin to understand what is Arbitrum.

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What Is Arbitrum: Optimistic Rollups to Solve Scaling Without Compromise

We dive deep into new technologies used in the crypto industry to unveil the latest tech rollouts. Let us help you break down the technicalities.