WTF Are Fraud Proofs? Optimism's introduction of fraud proofs means that bridged assets can be withdrawn without Optimism's approval and anyone can review and challenge OP Mainnet transactions. Previously, the Ethereum settlement layer had to trust Optimism's transaction history without proving it. Looking forward, other OP Stack chains like Base and Mantle should be able to implement fraud proofs and become Stage 1 L2s much quicker.

Liu Feng, former editor-in-chief of Odaily Planet Daily, Li Yang, founder of Orange Book, Wang Hanyang, director of "Later Chat", and others established a blog and Newsletter "crypto4.wtf" about the pan-blockchain industry. The blockchain industry is still in an early state at this moment, and everyone will have their own ideas and imaginations about it in this state; and there are many basic knowledge that have yet to be popularized. crypto4.wtf is a hub for people and people's ideas. The initiators of crypto4.wtf also include: Yixuan, PainCompiler (Xu Huan), Raina, Lu Yao, Mingshi, Wang Chao, Tang Han, Baiyu, Shim, and Pan Zhixiong, former research director of Lianwen.