What is a directed acyclic graph in cryptocurrency? How does DAG work?

A simple guide to explain what a directed acyclic graph (DAG) is in cryptocurrencies, how it is used and how it works. DAG vs. Blockchain Blockchains and DAGs both record transactions on a distributed ledger, albeit through different means.  Below is a quick comparison of the two in terms of benefits and drawbacks: Pros of…
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