In the era of explosive growth in the Internet of Things, we face a harsh reality: hundreds of billions of devices continuously generate data, but the authenticity, integrity, and auditability of this data are virtually meaningless. Sensors, cameras, and smart devices produce mountains of data that no one can truly trust.

The traditional approach is to put data fingerprints (hash values) on the blockchain, while the original data still resides on centralized servers—this is almost the same as not putting it on the chain, and the risk of tampering still exists.

But what if we directly write the raw data onto the blockchain? IoT devices themselves are a pain point—limited storage, limited bandwidth. Massive video streams and continuous monitoring readings make direct on-chain storage akin to self-sabotage.

This is where Walrus Protocol comes into play. Its idea is actually very clever: devices efficiently and cheaply store raw data on the Walrus network, then only commit data promises and access credentials to the Sui chain. Lightweight on-chain verification is achieved, and decentralized proof of raw data is established—an ideal solution.

How effective is this approach in real-world applications? Just look at a few examples:

The entire cold chain process for vaccines—temperature and humidity are recorded on Walrus without a second’s delay. Regulatory authorities and procurement parties can verify the entire history through on-chain credentials. Data integrity is guaranteed.

The power generation data of renewable energy stations—stored in a distributed manner on Walrus, providing solid proof of actual power generation. With this, innovations like carbon credits and green asset tokenization have a solid foundation.

In essence, this combination addresses the trust gap between the on-chain world and the physical world. Data is no longer just a paper promise but a verifiable, traceable, and trustworthy existence.