The internet was originally created as a platform to communicate freely, but it soon became a place where people could be monitored, controlled, and censored. 98% of content on the internet is deleted every 20 years. More surprisingly, based on a Twitter study, a third of links change their content fundamentally or are removed completely, within three months of their creation.  Arweave is a new data storage protocol that enables economically sustainable permanence for the very first time. Built on a blockchain-like structure called the blockweave, one of the applications on Arweave is what they have coined “the permaweb”. This is an array of data, websites, and decentralised applications, to which anyone can contribute and maintain. This system provides an incentive to store your data without compromising your privacy, solving one of the key issues facing the current web. Sam Williams, Co-founder & CEO of Arweave, talks about the technical solution they have built, the economic model around endowment, and the ethical and philosophical questions the permanence of information against concepts like “the right to be forgotten” raises. Topics covered in this episode: - Sam’s background and how he got into the blockchain space - Breaking down BitTorrent – the first scalable decentraized file sharing system - Data sustainability on the web and what should be kept - Arweave under the hood and what is a blockweave - How data is stored and retrieved in blocks - Arweave’s economics and incentive model - Data replication within the infrastructure and ensuring decentralization in the future - The AR tokens and how the Arweave endowment works - Arweave vs Skynet vs IPFS - Does Arweave help with the data availability problem in Ethereum? - Arweave's business model - Community projects that Arweave are involved with and what’s next for the project Episode links:  - [Arweave website](https://www.arweave.org/) - [Welcome to the Permaweb](https://medium.com/@arweave/welcome-to-the-permaweb-ce0e6c73ddfb) - [Arweave Whitepaper](https://www.arweave.org/files/arweave-lightpaper.pdf) - [Arweave on Medium](https://medium.com/@arweave) - [Arweave Twitter](https://twitter.com/ArweaveTeam) - [Sam Williams Twitter](https://twitter.com/samecwilliams) - [Mainnet 2020 – Messari's Flagship Crypto Event (June 1 to 3)](https://mainnet.events) - [Free tickets to Web 3.0 Forum (June 8 to 10)](https://ti.to/cogx/cogx-2020/discount/TPDODSFP100) - [Casual meetup for friends of Epicenter](https://epicenter.rocks/virtualmeetup) Sponsors:  - ShapeShift: ShapeShift is the leading crypto platform offering zero-commission trading - https://shapeshift.com/ This episode is hosted by Sebastien Couture & Friederike Ernst. Show notes and listening options: [epicenter.tv/341](https://epicenter.tv/341

Decentralized exchanges have been around for some time, and various designs have been attempted. Although they provide a number of privacy and censorship resistance benefits, one of their pitfalls has been transaction throughput. However, recent advancements in Zero-Knowledge Proof-based scaling solutions is creating a new breed of scalable DEXes. Loopring is a non-custodial DEX protocol that achieves high-throughput trading. It leverages ZK-Rollups to achieve upwards of 2,000 transactions per second with on-chain settlement. As an order book-based exchange, it sets itself apart from other DEXes like Uniswap and the Gnosis Protocol. However, users should keep in mind that the orderbook is centralized. Daniel Wang, Founder & CEO of Loopring, talks about why they decided to focus on DEXes and their plans beyond the current version 3.0. Topics covered in this episode: Daniel's background and how he became involved in cryptoLoopring's 2017 token sale and why they needed to return funds to investorsThe concept of ring matching in the Loopring protocolLoopring's use of ZK-RollupsThe current throughput and transaction costLooping vs Binance and centralized exchangesWhy Loopring chose to build on a centralized order book modelThe differences between the Optimistic Rollup and the ZK-RollupThe Loopring token (LRC) and how it's used in the protocolDaniel’s views on the future of the DEX ecosystemEpisode links: Loopring websiteLoopring 3.0Loopring’s Frontend Vulnerability, ExplainedLoopring Exchange frontend password bug: PostmortemLoopring TwitterDaniel Wang TwitterSponsors: Learn how Zero-Knowledge Access Passes can help you build a more privacy-minded business by disconnecting payment and user data. Learn more at leastauthority.com/zkapsThis episode is hosted by Friederike Ernst & Sunny Aggarwal. Show notes and listening options: epicenter.tv/340