After tinkering on the blockchain for a long time, have you ever thought about this question: those dazzling decentralized applications, whose underlying data supply is actually controlled by just a few institutions. Where does the price come from? How are events verified? Who reads the documentation? These factors determine whether a contract can run, but no one really has a clear view. If the data source itself is a black box, isn’t the story of decentralization vulnerable?

The solution to this problem is being seriously developed by a project called APRO. In simple terms, it aims to upgrade oracles from "data carriers" to "thinking information managers."

**Traditional Oracle vs. AI-Driven Data Verification**

How do traditional oracles work? If an exchange price is set at 50,000, it simply feeds that data on-chain as-is. It sounds simple, but this approach completely ignores the authenticity of the information—single data sources can be manipulated, and market sentiment isn't considered.

APRO's approach is different. It performs cross-verification: not only looking at exchange data but also scanning on-chain DEX liquidity pools, off-chain market trading sentiment, and using AI to analyze news and social media to see if black swan events might affect pricing. Only after confirming that the data isn't contaminated does it send the "clean" data on-chain.

More importantly, APRO can understand unstructured data. A PDF contract, a logistics photo, a sports game video—AI first performs content understanding and extraction (recognizing "signature valid"