Blockchain Technology Overview

Understand

Blockchains are tamper evident and tamper resistant digital ledgers implemented in a distributed fashion (i.e., without a central repository) and usually without a central authority (i.e., a bank, company, or government).

• At their basic level, they enable a community of users to record transactions in a shared ledger within that community, such that under normal operation of the blockchain network no transaction can be changed once published.
• This document provides a high-level technical overview of blockchain technology.
• The purpose is to help readers understand how blockchain technology works.