[//]:content-type-MARKDOWN-DONOT-DELETE Gate Learn has released 18 new articles this week ! In blockchain technology, [Chromia](https://www.gate.io/learn/articles/what-is-chromia/729 "Chromia") stands as a relational blockchain platform facilitating the easy construction of dApps and even DeFi; [Blockchain Network Congestion](https://www.gate.io/learn/articles/what-is-blockchain-network-congestion/731 "Blockchain Network Congestion") refers to transaction delays and high fees occurring when transactions exceed capacity. The [Metis Andromeda](https://www.gate.io/learn/articles/wha-is-metis-andromeda/733 "Metis Andromeda") is a second-layer solution developed by Metis DAC for the Ethereum blockchain; [Selfkey](https://www.gate.io/learn/articles/what-is-selfkey/735 "Selfkey") is a self-sovereign identity platform that allows users to protect their data from third-party interference securely. Then, we have the [Arpa](https://www.gate.io/learn/articles/what-is-arpa/737 "Arpa") network, which enables the sharing and analysis of data without compromising data privacy, courtesy of its innovative secure multiparty computation (SMPC). Moreover, by leveraging [on-chain data analytics](https://www.gate.io/learn/articles/introduction-to-six-analytical-tools-and-their-use-cases/740 "on-chain data analytics") platforms, users can reduce the time needed to organize raw data, and facilitate more convenient and comprehensive analysis of on-chain activities/projects/transactions, etc. Project overviews encompass [LADYS](https://www.gate.io/learn/articles/what-is-milady/727 "LADYS"), a meme coin created purely for entertainment without intrinsic value or expected earnings; [ArbDoge.AI](https://www.gate.io/learn/articles/what-is-arb-dodge/728 "ArbDoge.AI"), an experiment conducted on the Arbitrum network involving a group of AI "organisms"; [Klever](https://www.gate.io/learn/articles/what-is-klever/732 "Klever"), a multifaceted and secure crypto wallet supporting leading blockchains in the crypto industry; [Trias](https://www.gate.io/learn/articles/what-is-trias/734 "Trias"), a decentralized infrastructure committed to offering trustworthy and dependable cloud computing; [UniswapX](https://www.gate.io/learn/articles/what-is-uniswap-x/741 "UniswapX"), which guarantees traders the best market rates by aggregating liquidity sources both on and off the chain; [NumerAi](https://www.gate.io/learn/articles/what-is-numerai/742 "NumerAi"), a new kind of hedge fund built using AI technology; and [Base](https://www.gate.io/learn/articles/what-is-base-blockchain/743 "Base"), an Ethereum L2 public chain incubated by Coinbase and developed based on OP Stack. In the DeFi sector, we see the [Venus](https://www.gate.io/learn/articles/what-is-venus/736 "Venus") Protocol, striving to bridge the gap between traditional financial lending and decentralized protocols, taking advantage of the BNB Chain to bypass the speed and cost issues of Ethereum. In the metaverse, we'll discuss [MetFi](https://www.gate.io/learn/articles/what-is-metfi/730 "MetFi"), aiming to emerge as the first global metaverse and Web3 incubator offering a decentralized financial (DeFi) utility ecosystem for startups through NFT. Lastly, in the trading knowledge segment, buying Bitcoin following the appearance of buying signals in [hash ribbons](https://www.gate.io/learn/articles/bitcoin-hash-ribbon-a-nearly-fail-safe-bitcoin-buy-signal/744 "hash ribbons") almost invariably yields substantial returns for investors; [cryptocurrency tax accounting methods](https://www.gate.io/learn/articles/crypto-tax-accounting-methods/738 "cryptocurrency tax accounting methods") are utilized to determine the cost basis and calculate capital gains and losses in tax reports; the [Vegas tunnel](https://www.gate.io/learn/articles/a-strategic-tool-for-right-side-market-trend-analysis/739 "Vegas tunnel") assists investors in securing decent profits in long-term investments without the need to constantly monitor the markets. Learn more