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Blockchain

Block Explorer

A web tool that displays blockchain data including transactions, addresses, and blocks in readable format.

Last Updated

2026-03-19

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What is Block Explorer?

A block explorer is an online tool that allows users to browse and search the data of a blockchain. It acts as a search engine for everything happening on the network.

How does Block Explorer work?

  1. The explorer runs a full node to stay synced with the blockchain in real-time.
  2. It indexes every block, transaction, and address into a searchable database.
  3. Users enter a transaction hash, address, or block number into the search bar.
  4. The explorer retrieves and displays the data in a human-readable format.
  5. It also provides high-level stats like network hashrate and gas prices.

Why does Block Explorer matter?

Block explorers provide the transparency that defines blockchain technology. They allow anyone to verify transactions independently, audit smart contracts, and track the movement of funds without a middleman.

Key features of Block Explorer

  • Real-time transaction tracking
  • Wallet balance and history lookup
  • Smart contract source code verification
  • Network health metrics (e.g., gas, difficulty)
  • Human-readable view of raw blockchain data

Examples of Block Explorer

  • Etherscan, the most popular explorer for the Ethereum network.
  • Blockchain.com, a widely used explorer for Bitcoin.
  • Solscan, a dedicated tool for exploring the Solana blockchain.

External References

  • Wikipedia: Blockchain
  • Binance Academy: How to Use a Bitcoin Blockchain Explorer
  • Ledger: How to Read a Blockchain Transaction History