Introductory example – listing data sources

Let’s examine this headline:

Dogecoin gains 25% after Elon Musk confirms Tesla will accept DOGE for merchandise

(Source – Cointelegraph: https://cointelegraph.com/news/dogecoin-gains-25-after-elon-musk-confirms-tesla-will-accept-doge-for-merchandise.)

This headline references three data sources:

• Headline (news): An online newspaper specializing in the Web3 industry generates this headline. Blockchain news is gradually entering mainstream platforms, and similar information can also be found in traditional financial news indexes such as Reuters.
• Prices: The headline refers to the price variation of a particular cryptocurrency. Price data is not typically fetched from the on-chain sources; rather, it is a piece of information data scientists find useful to integrate from a third-party data source.
• X (formerly Twitter)/social networks: Numerous market-impact events unfold on social networks, where...