It's a familiar saying: garbage in, garbage out. But in the crypto world, this isn't just a software glitch—it's the harsh reality of assets in your wallet being instantly wiped out.

The funds you invest in DeFi are, frankly, not just competing with the market but engaging in a silent game against those invisible "information sources." Who is really calling the shots behind the scenes?

**The "Blind Spot" of Blockchain**

Blockchain technology is indeed powerful, but it has a fatal flaw—it's blind. It can accurately record and verify every transaction on the chain, but it has no awareness of the real world. For example, the real-time price of BTC, the final outcome of an event, the true value of an asset… all of these require external information sources to "tell" it.

This is why oracles exist. Blockchains need these "eyes" to observe and report what is happening in the real world.

But here’s the ironic part: the decentralized systems you trust are outsourcing trust entirely at the most critical point—the data input sources. If these "eyes" malfunction, whether through hacking, data falsification, or being driven by vested interests to lie, your assets are like fish on a chopping board, at the mercy of others.

Most oracles do simple work: collect data from location A and forward it unchanged to location B. They are just a megaphone, with no questioning or verification. APRO, however, aims to do more than just relay information; it wants to be a "megaphone with a microscope and lie detector."

**Three Layers of Defense: Making Lies Unconcealable**

APRO’s operation is as meticulous as a crime scene investigation:

**First Layer: Off-chain Intelligence Verification.** Before data is on-chain, it undergoes multi-dimensional authenticity checks. It’s not just passively accepting raw data but actively verifying its reasonableness. For example, checking if the price fluctuation of a trading pair is within historical ranges or if there are obvious anomalies.

**Second Layer: Cross-Verification from Multiple Sources.** Instead of relying on a single data provider, it collects information from multiple independent sources and finds consensus through algorithmic models. If one source’s data significantly deviates from others, the system automatically flags and isolates it.

**Third Layer: On-chain Consensus Mechanism.** The data must be confirmed by a network of validators, who, motivated by economic incentives, are unlikely to endorse false data. Anyone can challenge a piece of data, and those who prove it false will receive economic rewards.

The logic of this layered approach is clear: make the cost of falsification much higher than the potential gains, and reduce the influence of any single data source to near zero.

**Why This Matters**

As the DeFi ecosystem expands, the role of oracles becomes increasingly critical. Derivatives trading, lending protocols, options markets… the survival of these applications hinges on the reliability of oracles. A single oracle failure or manipulation could trigger a chain reaction, affecting hundreds of millions of dollars in funds.

APRO’s heavy focus on this direction shows a deep understanding of the ecosystem’s pain points. In an era of information explosion and uneven data quality, whoever can provide the most reliable data sources will hold the key to Web3’s future.