I recently came across a news story: Russia's largest bank—Sberbank—suddenly announced a major move: Bitcoin-backed loans are officially launching.

To be honest, this isn't a small-scale fund's trial project, but a financial giant with national-level financial functions opening a door to Bitcoin on its balance sheet. The signal behind this is much louder than any "bull market is coming" shout—Bitcoin is being recognized by the mainstream credit system as a legitimate asset.

But behind the celebration, there's a critical problem: how does a bank assign a value to your Bitcoin?

Imagine this from another perspective: you use Bitcoin as collateral to exchange for rubles. What is the bank most afraid of? It's simply not being able to accurately determine the true value of these Bitcoins. If they rely on a single exchange's quote, what if someone manipulates the data secretly? The bank could quickly end up with a bunch of bad debts.

This is precisely where the core significance of decentralized oracles lies. Through multi-node verification, zero-knowledge proofs, and other technical means, they can provide on-chain asset price data that is fraud-resistant, real-time verifiable, and updated in milliseconds. As traditional finance's big ship sails into the crypto world, such infrastructure becomes its "GPS" and "trust pillar."

In fact, this is not an isolated event. The approval of ETFs in the US, compliance integration of European banks, and now this move by Russia—these are not just simple market actions; they are clearly a global upgrade of the financial system.