Blockchain Explorer

A full-featured blockchain explorer for EVM-compatible chains. Users can search and browse blocks, transactions, addresses, token transfers, and NFT activity. Contract pages include verification status, ABI views, and direct read and write interactions from the browser no external tool needed to call a contract function.

• ▸Searchable blocks, transactions, addresses, and token activity
• ▸NFT transfer tracking and token holder views
• ▸Contract verification, ABI display, and browser-based read/write interactions
• ▸Wallet connection for authenticated on-chain actions
• ▸Live network stats TPS, gas price, block time
• ▸Pagination, filters, and real-time data updates

The explorer's backend is a big data pipeline, not a simple API. On-chain events are ingested with Kafka, ETL workflows are orchestrated with Airflow, and data is processed with Python and Scala before landing in PostgreSQL for the Next.js frontend to query. The pipeline is what makes search fast across a chain with millions of blocks.

• ▸Kafka for high-throughput on-chain event ingestion
• ▸Airflow for ETL orchestration and pipeline scheduling
• ▸Python and Scala for data processing and transformation
• ▸PostgreSQL as the indexed read store for the frontend
• ▸Next.js API layer with real-time updates for live chain data

Open-source explorer templates (Blockscout, Etherscan clones) are built for public chains with fixed assumptions about chain configuration, block structure, and indexing cadence. A custom chain has none of those guarantees. Building from scratch meant the pipeline and data model could be designed around the specific chain's behaviour event structure, transaction types, and throughput profile rather than adapted from something that wasn't designed for it.