Etherscan and Bitcoin Explorers

This lesson is for enrolled learners

The concept A block explorer is a searchable, human-readable window into raw blockchain data — the single most practical tool in this entire course, because it lets you independently verify any claim about on-chain activity instead of trusting someone's screenshot or tweet. The two you'll use constantly are Etherscan (etherscan.io, for Ethereum and its tokens) and mempool.space (for Bitcoin, including……

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