[//]:content-type-MARKDOWN-DONOT-DELETE Gate Learn has released 10 new articles this week ! In early 2023, [Blur,an innovative NFT marketplace](https://www.gate.io/learn/articles/what-is-blur/462 "Blur,an innovative NFT marketplace") launched and even surpassed Opensea in daily trading volume, prompting Opensea to change its royalty fee policy. [Gains Network](https://www.gate.io/learn/articles/what-is-gains-network/461 "Gains Network"), which features a unique derivatives trading mechanism, gained a lot of attention as the growth of Arbiturm. [Balancer](https://www.gate.io/learn/articles/what-is-balancer/471 "Balancer"), a well-established DeFi project that highlights its customizable liquidity pools. Stablecoins are a common unit on the market, introducing the [USDP, minted by Paxos](https://www.gate.io/learn/articles/what-is-pax-dollar/469 "USDP, minted by Paxos"), and [cUSD, issued by Celo](https://www.gate.io/learn/articles/what-is-cusd/467 "cUSD, issued by Celo"), both of which are pegged to the US dollar. On the technology side , we released articles explaining the differences between [permissioned and permissionless blockchains](https://www.gate.io/learn/articles/what-are-permissioned-and-permissionless-blockchains/464 "permissioned and permissionless blockchains"), the basis of all blockchain consensus, [BFT ( Byzantine fault tolerance )](https://www.gate.io/learn/articles/what-is-byzantine-fault-tolerance/465 "BFT ( Byzantine fault tolerance )"), and trading-related topics, such as the [ADX indicator](https://www.gate.io/learn/articles/adx-indicator/463 "ADX indicator") and [risk-return ratio](https://www.gate.io/learn/articles/what-is-the-risk-reward-ratio-and-how-to-use-it/466 "risk-return ratio").