Decentralized Aggregation
Decentralized aggregation is the process of collecting data from multiple independent sources to produce a single, reliable value for a smart contract. By using many data providers, the protocol reduces the risk of relying on a single, potentially compromised source.
This is the foundation of secure oracle networks. The aggregated data is typically processed using median or weighted average calculations to filter out outliers or malicious reports.
This approach significantly increases the cost of manipulation, as an attacker would need to compromise a majority of the sources. It is a critical design pattern for any protocol that depends on external information.
Decentralized aggregation turns potentially unreliable data into a robust, trustworthy input. It is the key to building secure and scalable decentralized financial applications.