Chain-indexing is a blockchain event indexing and cataloging system that captures and documents blockchain transactions and state changes. The project uses a relational database for projection views and documents events across multiple blockchain modules, including banking operations (such as message sends and multi-sends), block creation and validation, and reward distribution. The system is built to track detailed event metadata including transaction hashes, block heights, validator addresses, and amounts, with each event assigned a unique identifier and versioning information for blockchain data consistency.