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Cryptocurrency

A cryptocurrency is a digital currency that only has value dependent on those who back it. For security, cryptocurrencies rely on blockchaining: a database organized in such a way that records are kept secure through peer-to-peer networks. Each record is kept within a block, and each block holds a timestamp and link to the block before it. The first cryptocurrency was Bitcoin, implemented in 2009 by Satoshi Nakamoto.

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practicalswift
practicalswift commented Aug 12, 2020

Enable unused member function diagnostic by default.

Clang has a nice compiler diagnostic -Wunused-member-function which is good at catching accidentally dead/unreachable code.

While dead/unreachable code is most often harmless from a security/robustness perspective there are instances where dead/unreachable code may be an indication of more serious issues. Enabling this diagnostic allows

brapse
brapse commented Feb 27, 2020

The blockchain v2 reactor utilizes concurrency to saturate the bottleneck of writing blocks to disk. This concurrency is internal to the reactor where the reactor itself will launch and manage internal state machines running as go-routines. This configuration makes testing difficult as we don't know when messages processed by internal state machines will be processed and when we can assert that th

Created by Satoshi Nakamoto

Released January 3, 2009

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