Overview of Polkadot and its Design Considerations
This addresses the issue for blockchain users and developers facing difficulties in utilizing applications across different, isolated blockchain projects with weakened individual security.
The paper tackles the problem of blockchain interoperability and security fragmentation by describing Polkadot's design as a heterogeneous multi-chain protocol that provides a scalable and interoperable framework with pooled security.
In this paper we describe the design components of the heterogenous multi-chain protocol Polkadot and explain how these components help Polkadot address some of the existing shortcomings of blockchain technologies. At present, a vast number of blockchain projects have been introduced and employed with various features that are not necessarily designed to work with each other. This makes it difficult for users to utilise a large number of applications on different blockchain projects. Moreover, with the increase in number of projects the security that each one is providing individually becomes weaker. Polkadot aims to provide a scalable and interoperable framework for multiple chains with pooled security that is achieved by the collection of components described in this paper.