Block Explorer
A website that lets you look up transactions, addresses, and other data on a blockchain.
Block explorers are like search engines for blockchains. You can paste a transaction hash to see if your transfer went through, check an address to see its balance and history, or browse recent blocks.
Each blockchain has its own explorer. Etherscan is the most well-known (for Ethereum). Base uses Basescan, Solana uses Solscan or Solana Explorer, and Arbitrum uses Arbiscan. They all work similarly: paste an address or transaction hash, and you get the full details.
Block explorers are useful for verifying transfers, checking token balances, and troubleshooting failed transactions. If you sent USDC and aren't sure it arrived, the block explorer is the first place to check.
Related Terms
Transaction Hash (Tx Hash)
A unique identifier assigned to every blockchain transaction, used to look up and verify the transaction.
Blockchain
A distributed, immutable digital ledger that records transactions across a network of computers.
Confirmation
The number of new blocks added to the blockchain after your transaction's block, indicating how settled the transaction is.
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This definition is provided for educational purposes. USDC.org is an independent resource and is not affiliated with Circle Internet Financial.