Створений Джеком Дорсі[4] в 2006 році, твіттер незабаром завоював популярність у всьому світі. Станом на 1 січня 2011 року сервіс нараховує понад 200 млн користувачів. 100 мільйонів користувачів проявляють активність хоча б раз на місяць, з них 50 мільйонів користуються твіттером щодня. 55 % користуються твіттером на мобільних гаджетах, близько 400 мільйонів унікальних відвідувань отримує за місяць безпосередньо сайт twitter.com[5][6]. З 18 по 19 листопада 2014 року, хакери співтовариства Anonymous завдали шкоду сайту, зробивши його небезпечним на пару годин.

2010 року дохід компанії сягнув $45 млн за продаж онлайн-реклами[7].

До 7 листопада 2017 року максимальна кількість символів у повідомленні становила 140 символів. Збільшення ліміту до 280 знаків було прокоментовано[8] розробниками як таке, що допоможе користувачам з латинськими та кириличними мовами рідше досягати ліміту під час написання твіта, чого майже не стається з користувачами ієрогліфічних мов.

Головний офіс компанії розташовано в Сан-Франциско, штат Каліфорнія[9]. Твіттер також має сервери й офіси в Сан-Антоніо (штат Техас) і Бостоні (штат Массачусетс)[9]. Станом на вересень 2019 року в компанії працювало понад 4600 осіб[10] (на 2012 рік — понад 900[11]).

Cryptocurrency Arbitrum is a popular topic in the world of cryptocurrency, and for good reason. This new technology is gaining traction in the blockchain community as it solves some of the most pressing issues with blockchain technology.

In this article, we'll delve into what Arbitrum is, why it's important, and how it works.

What is Arbitrum?

Arbitrum is a second-layer scaling solution for the Ethereum blockchain. It is built on top of Ethereum and provides a more efficient way to process transactions. Arbitrum is a type of optimistic rollup, which means that it is an off-chain scaling solution that takes a group of transactions and compresses them into a single transaction.

This process allows for faster transaction processing times and reduces the cost of gas fees. The result is a more efficient and cost-effective blockchain that can handle more transactions per second.

Why is Arbitrum important?

Arbitrum is important for several reasons. Firstly, it helps to solve the problem of scalability in the Ethereum blockchain. As more users join the network, the number of transactions increases, which can lead to congestion and higher gas fees. By using a second-layer solution like Arbitrum, the Ethereum network can handle more transactions per second, which can help reduce congestion and lower fees.

Secondly, Arbitrum is important because it is built on top of Ethereum, which means that it is compatible with existing Ethereum contracts and applications. This allows developers to build applications on top of Arbitrum without having to learn a new programming language or make significant changes to their existing code.

Finally, Arbitrum is important because it is decentralized. Unlike centralized solutions, which are controlled by a single entity, Arbitrum is built on a decentralized network of nodes. This makes it more secure and less susceptible to attacks.

How does Arbitrum work?

Arbitrum works by compressing a group of transactions into a single transaction. This process is called a rollup. Once the rollup is complete, it is verified by a smart contract on the Ethereum blockchain. This smart contract acts as a bridge between the Arbitrum network and the Ethereum network.

The smart contract ensures that the rollup is valid and that the transactions are executed correctly. Once the rollup is verified, it is added to the Ethereum blockchain. This process is called a commit.

The rollup and commit process allows for faster transaction processing times and reduces the cost of gas fees. This is because the majority of the transaction processing is done off-chain, which reduces the load on the Ethereum network.

Conclusion

Cryptocurrency Arbitrum is an exciting new technology that has the potential to revolutionize the blockchain industry. It provides a more efficient and cost-effective way to process transactions, which can help to solve the problem of scalability in the Ethereum network.

Arbitrum is important because it is built on top of Ethereum, which means that it is compatible with existing Ethereum contracts and applications. Additionally, it is decentralized, which makes it more secure and less susceptible to attacks.

As the blockchain industry continues to grow, it is likely that we will see more second-layer scaling solutions like Arbitrum emerge. These solutions will help to make blockchain technology more accessible and efficient for users and developers alike.