A focused explanation of the Flare Time Series Oracle (FTSO): what it is, what “time series” means, and how it stays reliable.
FTSO stands for Flare Time Series Oracle. Breaking the name down makes it approachable: “Flare” because it is part of the Flare networks; “time series” because it deals with data that updates over time; and “oracle” because it brings outside information into the system.
In short, the FTSO is the system that delivers regularly-updated data series to applications.
Rather than depending on a single source, the FTSO collects the same information from many independent contributors and combines their inputs into one resilient result. Because many participants contribute, a single mistaken or dishonest contributor cannot easily distort the outcome.
This is a concrete example of the guiding principle behind the whole platform: reliability through broad agreement, not through trusting one party.
Any time you read about applications on the Flare networks reacting to regularly-changing outside information, the FTSO is likely involved. It is one of the most frequently mentioned parts of the technology.
This article is part of the Flare Portal wiki — a free, independent educational reference. It is a conceptual overview and not a substitute for primary technical documentation.