Blockchain Explorer
a.k.a. Block explorer, Explorer
A website that lets anyone search a blockchain and look up any transaction, address or block.
A blockchain explorer is a search engine for a blockchain. Paste in a transaction ID and you can see whether it went through, how much was sent, what fee was paid and how many confirmations it has. Paste in a wallet address and you see its balance and every payment in or out.
It's the first place to look when a transfer seems "stuck" (is it still unconfirmed?) or when someone claims they've paid you. It is also a vivid lesson in pseudonymity: everything is public, just not labelled with names.
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