Layer2、Modularization and these concepts are now everywhere, everyone is thinking about how to break through the "Impossible Triangle" of blockchain. But here’s the problem—when transaction volume explodes, who will ensure that this massive amount of data can be efficiently accessed and verified by nodes? This is the real issue at hand.

The recently emerging Walrus protocol, named "Walrus," sounds like it’s about breaking the ice. Its goal is simply to reshape the data availability layer.

In a modular architecture, the execution layer, settlement layer, and data availability layer each have their own roles. The DA layer is like a lifeline, ensuring that transaction data is complete, public, and storable, so that any verifier can download and verify it. This is the foundation of system security and decentralization.

So what’s the current problem? Traditional solutions either rely on the main chain (like Ethereum’s CallData), which is prohibitively expensive; or depend on emerging dedicated DA networks. Walrus is different—it aims to utilize idle storage resources worldwide, from decentralized storage networks (like Filecoin, Arweave) to traditional cloud storage, to build a cheaper, verifiable, censorship-resistant DA market.

On the technical level, it integrates data encoding technologies like erasure coding, with the core idea of handling data more intelligently to ensure security while improving efficiency. This scheme happens to be the missing cornerstone in the modular blockchain stack.