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The blockchain is a cryptography-focused architecture based on the internet protocol, powered by networked computer servers that do not need to be set up by developers. The Bitcoin Core developers sign all of their releases using the “Pretty Good Privacy” (PGP) encryption program that provides cryptographic privacy and authentication for data communication. The trust service layer, in combination with Peer to Peer (P2P) network, handles microtransactions and large-value transactions as well - allowing two users to do the same things that a bank would need to do on their behalf.