What Is a Block Explorer?
A block explorer is a web-based tool that lets you browse and inspect data on a blockchain. It functions like a search engine for a distributed ledger, displaying blocks, transactions, wallet addresses, and other public blockchain data in a readable format.
Beyond simple tracking, block explorers serve as a comprehensive analytics tool. They provide insights into network health, such as hash rates, validator activity, and pending transactions waiting in the "mempool."
Each blockchain has its own dedicated explorer, such as Etherscan for Ethereum or Solscan for Solana, ensuring that all onchain activity remains permanent and verifiable by any participant without needing to trust a central authority.
On KAST, you can use a block explorer to check on card top-ups by pasting your transaction hash into the explorer and seeing exactly when your crypto moves through the network and becomes ready to spend.
