Have you ever encountered this dilemma—an intelligent contract is triggered for liquidation due to an anomalous data point, and you watch your funds vanish in an instant, but no one takes responsibility. Data providers pass the buck, claiming improper operation on your part; developers blame the data source; the community is full of spectators watching the spectacle. In the end, you realize you’ve been the victim of an unaccountable loss.

Behind this phenomenon actually exposes a neglected issue in the on-chain world—it's not that we lack more powerful oracles, but that we lack a comprehensive data accountability system.

A simple analogy makes it clear. Currently, most data services are like a buffet restaurant—ingredients are laid out, and if you get food poisoning, you have to bear the consequences yourself. The truly professional approach should be more like a Michelin-starred restaurant’s standard process—from tracing the source of raw materials, recording each step of the process, to handling user feedback, with the entire chain documented, traceable, and with clear resolution paths if problems arise.

Why is this so critical? Because the fate of technology is that errors will happen. Lightning crashes, cross-chain delays, node anomalies, API attacks... these incidents will occur sooner or later; it’s impossible to be 100% error-free forever.

So, true professionalism isn’t about never making mistakes, but about how well you handle them—can you clearly define who is responsible, can you quickly initiate data verification, and can you produce verifiable evidence to resolve disputes?

This is what a complete data after-sales system should do. Every data point must have verifiable "identity information"—which node it came from, when it was signed, how many layers of consensus it went through. When disputes arise, you can trace back along this chain of evidence step by step, rather than arguing endlessly within the community. Only then can the rights and interests of participants be truly protected, and the trust foundation of the on-chain ecosystem be made more solid.