At present, only projects that apply for the whitelist can be deployed on the Optimistic Ethereum mainnet. There are not manbittorrent for ubuntu 17.04y projects that have been built on Optimism, mainly including cross-chain bridge Optimism Gateway, Hop.Exchange, Celer bridge; DEX platforms uniswap, Kwenta, Rubicon, 1 inch; and 13 applications including option trading platform Lyra and Synthtix.
Taiwan Semiconductor Manufacturing Co., Ltd. manufactures and sells semiconductors and related products, and is headquartered in Taiwan. On June 22, the investment consulting agency Argus began reporting on the stock of Taiwan Semiconductor Manufacturing Co., Ltd. (NYSE: TSM), giving it a buy rating with a target price of $150, and applauding the company's new capital expenditure plan.cardano chart inrAt the end of the second quarter of 2021, 64 hedge funds in the Insider Monkey database held US$10.6 billion worth of shares in Taiwan Semiconductor Manufacturing Co., Ltd. (NYSE: TSM), down from 76 in the previous quarter, valued at 10.8 billion Dollar. Asset management company Bonsai Partners highlighted several stocks in its investor letter for the first quarter of 2021. Taiwan Semiconductor Manufacturing Co., Ltd. (NYSE: TSM) is one of them.
Taiwan Semiconductor is the world's largest logic semiconductor chip outsourcing foundry company. TSMC’s stock price has appreciated by 8.9% during the quarter. Similar to the previous quarter, the imbalance between supply and demand of semiconductor chips continues to benefit TSMC. In order to promote new technological progress and meet the current supply imbalance, capital expenditures for the entire industry may increase substantially in the next few years.Their current large-scale capital expenditure plan (US$100 billion in investment in the next three years) may lead to oversupply of the industry in the medium term, which will affect the rate of return on investment to a certain extent.10. Thermo Fisher Scientific Inc.Thermo Fisher Scientific Inc. aims to provide life science solutions. On August 4, the investment consulting agency Argus maintained a buy rating on the stock of Thermo Fisher Scientific Inc. and raised the target price from $530 to $600. It noted that the company's profitability in the second quarter was good and there were also guidance figures. Improved.At the end of the second quarter of 2021, 87 hedge funds in the Insider Monkey database held Thermo Fisher Scientific Inc. worth 7.3 billion USD, an increase from the 79 stocks worth 6.2 billion USD in the previous quarter.
"If you want to play the role of God, you can't ignore any details." This is a lady named Kelsei (aka "Pandapops") who took a lesson on how to create a digital world via live video. Imagine an empty grid, and then fill the grid with aquarium, water and fish. One of the fish has creepy eyes, has a strange little tail, and one looks like an alien.Pandapops is optimistic and friendly, with a British accent and bright blue hair. "I really want the aquarium to look deep," she explained.Although StarkEx also belongs to ZK Rollup, not all data is uploaded to the main chain at the first level. Therefore, theoretically, it can have higher scalability and processing speed. It is precisely for this reason that compared to other Rollup solutions, StarkEx network Data availability and security risks are higher.
Proof mechanism: zero-knowledge proofStarkNet advantage: Data is stored on the main chain, which is more secure than other ZK expansion solutions.StarkNet Challenge: EVM compatible technology is more difficult, and the gas fee is slightly higher than zkSync.Polygon used to be called Matic Network, and the technology used in its L2 chain is plasma.
Plasma essentially belongs to the category of side chains. First, create a smart contract on Ethereum as a connection between the Ethereum main network and plasma sub-chain. This plasma sub-chain can even be a private chain, and data calculation and processing are both In the plasma sub-chain, the executors of layer 2 only need to periodically submit a "state commitment" to the main chain to ensure the credibility of the data off the chain. The security of this scheme is relatively low, so it is basically used by many mainstream research institutions. Abandoned.For example, the OMG Foundation, which previously focused on plasma, also proposed a new expansion research plan this year-Boba network, and what Boba uses is Optimistic in the Rollup plan.
In view of the awkward position of Polygon, many people regard the current Polygon as a pseudo two-layer, but Polygon positions itself as a Layer 2 solution aggregator, which to a certain extent has found another development path for Polygon. Moreover, Polygon has also acquired the ZK Rollup expansion network Hermez launched by iden3, which reduces the doubts about the pseudo-second layer to a certain extent.Proof mechanism: fraud proofPolygon advantage: extremely high scalability, EVM is easily compatible.Polygon Challenge: Security is the lowest among the above-mentioned schemes.
Overall, Optimistic Rollup is the easiest solution to implement under the current technical background, but its essence still does not fundamentally solve the security problem of assets. The ZK Rollup solution may become the final Layer 2 solution, but how to catch up The first-mover advantage of Optimistic Rollup ecological development is also a problem in the ZK Rollup solution.Looking at all the different Layer 2 general solutions, we found that the current Layer 2 does not have a perfect solution. Different solutions have made a trade-off between safety and efficiency, either the former or the latter, but the most The bottom layer and the core effective solution can only be implemented on layer1, which is also the importance of Eth2 sharding.In the trading market, there is a faintly visible grass snake gray line behind every rise and fall. The cryptocurrency market is no exception.According to data from Coingecko, on September 18, 2021, the price of MX on the Matcha Exchange (MEXC) platform rose 28% from yesterday, reaching a maximum of 1.93 USDT. This is the second time that MX has recorded an intraday increase of more than 20% since the 15th.
This is all related to a rumor circulating in the community.Matcha was acquired by Bybit?
On September 15, there was a rumor that "Matcha was acquired by Bybit" from the community, and the price of MX quickly rose from 1.3 SUDT to 1.6 USDT.On September 16th, in response to the rumors of matcha being acquired, the relevant person in charge of MEXC responded that "the rumors are untrue" and said, "At present, MEXC is increasing its global layout and making positive progress in overseas business. In the future, it will continue to adhere to the user-centered approach. Principle layout of the global market".
After MEXC rejected the rumors, the price of MX retreated below 1.5 USDT on September 17.After MX fell below 1.5 USDT, MX began to break again strongly, rising to 1.93 USDT around 13:00 on September 18, an increase of more than 28%.After the head of MEXC dispelled the rumors that MEXC was acquired on September 16, why did MX rise sharply again? It is still related to the rumors of MEXC being acquired.According to internal sources, the rumors of MEXC being acquired by Bybit should be true. Some investors also said in the community that they bought MX from 1.1 USDT.Who is Bybit? According to data from Coingecko, Bybit ranks third in derivatives exchanges based on open positions; Bybit ranks sixth in terms of 24-hour trading volume.Why the rumored object is Bybit? Some analysts said that firstly, Bybit is the world's top five derivatives exchange, with an annual profit of billions of dollars; secondly, after Bybit completely withdraws from China and moves overseas in 2020 and recently launched BitDAO, the Bybit ecosystem needs to be domestically and centralized. The spot market is complementary; again, Bybit is created for the domestic team, and there are no obstacles in language and culture.
And Bybit has been moving frequently recently.Bybit announced on June 6 the launch of BitDAO, a decentralized autonomous organization aimed at promoting the development of open finance, and completed $230 million in financing. Peter Thiel, Founders Fund, Pantera Capital, and Dragonfly Capital led the investment.
On August 10, BitDAO launched the first step of the DeFi ecosystem, auctioning 200 million BIT tokens on the Sushi MISO platform in the Netherlands, raising nearly 350 million U.S. dollars. As of press time, the market value of BIT is 410 million USDT and the market value of MX is 180 million USDT.In the future, BitDAO intends to launch various DeFi products, including an encrypted futures exchange and a decentralized version of Bybit.
After layout, Bybit has formed a centralized derivatives exchange and a decentralized DeFi ecosystem, and there is still a lack of a centralized spot exchange.MEXC is Bybit's choice? The crypto community will wait and see.
Arbitrum will continue to absorb the most advanced technology and actively promote the development of the expansion field.After the Ethereum expansion network Arbitrum One was officially launched and publicly tested, it has become the network with the largest amount of asset lock-ups in the Ethereum L2, even an order of magnitude higher than the second place. But in fact, this is only the first expansion network launched by Offchain Labs, and a parallel expansion technology with Arbitrum One will be launched in the future.For example, in the previous cooperation with social media and online forum Reddit, Arbitrum has stood out among dozens of expansion plans, and Reddit will use Arbitrum to expand its community points system (Community Points). The Arbitrum team told Lianwen, "According to our current expectations, there will be various industry-specific and company-specific Rollup solutions in the future. Multiple Rollups can run in parallel to increase the total capacity."At that time, Reddit conducted research and in-depth review of multiple Ethereum scalability solutions, and found that Arbitrum's Optimistic Rollups were the most promising expansion technology for the community points system, so it decided to adopt the Arbitrum solution, which will be launched on the Rinkeby testnet first. , And then migrate to the Ethereum mainnet.
As for the current expansion effect of Arbitrum One, the team said that there is still some room for improvement in the short term, but in the long run, it still needs to rely on the data sharding technology of Ethereum 2.0 in order to reduce transaction costs more significantly.In addition, we also chatted with the Arbitrum team about "the centralization risk of a single Sequencer", "views on other expansion technologies" and other topics.
What are the components of Arbitrum's complete solution?In fact, we are very curious about what components Arbitrum is built of as a novel and complex expansion technology, and what role AVM and ArbOS, which are often heard in the community, play in this agreement.
The Arbitrum team stated that Arbitrum consists of four parts, namely: smart contract of the agreement, AVM (virtual machine), ArbOS and asset bridge.Smart contract of the protocol: Sometimes called EthBridge, it refers to the smart contract of the Arbitrum Rollup protocol on Ethereum. It ensures that the business above this layer can run correctly, and provides mediation if there is a dispute in the Arbitrum protocol. "Logic. (Chain note: The term Arbitrum comes from Arbitrium, which means arbitration, that is, "dispute resolution").
Arbitrum Virtual Machine (AVM): AVM virtual machine is similar to EVM (Ethereum Virtual Machine), it will execute computer programs, read input and produce output.ArbOS: ArbOS is an operating system (OS) running on the second-tier network that provides a compatibility layer that fully supports EVM. It will also serve as the recorder, supervisor and enforcer of smart contract execution on the Arbitrum chain. (Official documents on the introduction of AVM and ArbOS: https://developer.offchainlabs.com/docs/avm_design)Asset Bridge: Allow users to send Ethereum and other tokens between Arbitrum One and the Ethereum mainnet.Is there still room for Arbitrum One's transaction costs to drop?
Although according to our previous estimates (https://www.chainnews.com/articles/115931150768.htm), Arbitrum's transaction cost can still be reduced by about an order of magnitude compared to the first layer of Ethereum, but according to the statistics of the L2 Fees website From a point of view, it is still several times higher than the cost of using some ZK Rollup networks.However, you can also see that the L2 Fees website has also made some notes for Arbitrum. Arbitrum One, which is in the Beta stage, is currently artificially restricted. The opening of this restriction on the official mainnet in the future may further reduce transaction costs.
We also asked the Arbitrum team about this topic. They said, "In the short term, we are working hard to reduce the basic cost of each transaction, that is, the cost allocated to each transaction in the batch release transaction. We will soon see Transaction costs have fallen.”However, in the long run, the Arbitrum One solution requires that each transaction be stored on the Ethereum mainnet through calldata. As long as the capacity of Ethereum remains unchanged, there is still an upper limit. Therefore, the long-term expansion possibility of Arbitrum One still needs to rely on the data sharding technology of Ethereum 2.0.
The Arbitrum team stated, "ETH 2.0 data sharding will greatly reduce the cost of publishing data to Ethereum, which is crucial to Rollup's expansion technology. ETH 2.0 data sharding means cheaper calldata, and we are very happy to become Ethereum "Rollup as the center" part of the road map."Are there more expansion plans for Arbitrum?