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Check how many times Bitcoin has been declared dead.
The world's first zero-trust physical Bitcoin wallet. Opendime is a small USB stick that allows you to spend Bitcoin like a dollar bill. Pass it along multiple times. Connect to any USB to check balance. Unseal anytime to spend online. Trust no one.
Bitcoin Wiki: How bitcoin works
This page explains the basic framework of Bitcoin's functionality.
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Bitcoin Who's Who
Search BTC addresses by proper name. Be alerted by email to Bitcoin address activity.
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