Chapter 1

Introduction to On-Chain Analytics

Blockchains are public databases — every transfer, swap, and contract call is recorded permanently. On-chain analytics turns that open data into insights for traders, researchers, protocol teams, and investigators.

Transparent ledgers enable accountability but overwhelm manual review. Analytics tools aggregate billions of rows into dashboards — TVL trends, whale movements, protocol health, and scam tracing. What hedge funds pay for in TradFi is free to query on Ethereum if you know how.

Traders track smart money and token flows. Protocol teams measure retention and revenue. Researchers study market structure. Security firms trace stolen funds. The tools differ, but the underlying data is the same public ledger.

This course covers explorers, transaction decoding, DeFi and NFT metrics, dashboards like Dune and Nansen, SQL queries, address labeling, whale tracking, and where analytics is heading next.