See Also
ELI5: Blockchains explained in simple terms
A blockchain is a database formed by a sequence of entries called (you guessed it) blocks. Blockchains have a special characteristic by which any attempt to modify one of its entries would modify the entire chain. It is, therefore, an immutable data structure, which stores blocks in chronological order of insertion. This makes blockchain a […]
optional.h a pre-C++17 optional type in the Bitcoin source code
optional.h is a stub that’ll likely get removed from Bitcoin Core at a future date when C++ 17 gets formally adopted for the entire project. By reading the Bitcoin Core sources you can see that lots of sections could use C++ 17 idioms. Let’s keep in mind though that Bitcoin Core is high security software […]
A program to send and handle every UNIX signal
While playing around with errno I decided to test what happens if I sent (and handled) every possible UNIX signal to a program. Running this as a non-root user, I figured I couldn’t break anything if I tried – so I went ahead and ran it. Let’s see: I skipped sending SIGKILL (9) for obvious […]
The 34 most profitable Proof of Stake (PoS) coins for 2021
In this article we take a look at several Proof of Stake (PoS) coins for investors building passive income streams. With the DeFi craze causing extremely high Ethereum fees, more and more investors look to PoS instead. Before You StartIf you’re not familiar with Proof of Work, Proof of Stake and cryptocurrency mining/staking, then please […]