\chapter{Θεωρητικό υπόβαθρο}

\input{chapters/2.theoretical-background/2.1.hash-functions}
\input{chapters/2.theoretical-background/2.2.asymmetric-cryptography}
\input{chapters/2.theoretical-background/2.3.blockchain}
\input{chapters/2.theoretical-background/2.4.smart-contracts}
\input{chapters/2.theoretical-background/2.5.distributed-databases}
\input{chapters/2.theoretical-background/2.6.decentralized-apps}