Oracles

Blockchains are famously self-contained. They maintain their own ledgers, execute smart contracts, and record transactions without relying on external systems. This independence is a strength, but it comes with a limitation: blockchains cannot access real-world data on their own. Prices, weather conditions, shipping updates, or sports results, all vital for many decentralized applications, exist outside the chain. Enter oracles, the bridge between blockchain and reality.