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Polkadot Roadmap Roundup
A proposed roadmap for upcoming developments on Polkadot. Get the latest status on asynchronous backing, parathreads, XCMv3, governance, common-good parachains and more.
An Updated Overview of Polkadot
The new paper Overview of Polkadot and its Design Considerations expands on the white paper, presenting a comprehensive and updated description of Polkadot’s design components and subprotocols. Some of these are outlined here.
Polkadot Consensus Part 4: Security
So far, we have discussed how BABE creates blockchain candidates and GRANDPA finalizes them. We know that we need more than two-thirds of validators to properly follow the protocol. But how many validators are there? How are they chosen? Why should they follow the rules?
Polkadot Consensus Part 3: BABE
Blind Assignment for Blockchain Extension (BABE) is a block production engine that was inspired by Ouroboros Praos, another proof-of-stake protocol. It can be used on its own because it provides probabilistic finality, or it can be coupled with a finality gadget like GRANDPA.
Polkadot Consensus Part 2: GRANDPA
In the introduction to this series, I outlined that a consensus algorithm helps a network of computers answer three questions. GRANDPA addresses the second.
Polkadot Consensus Part 1: Introduction
This series will be a discussion about security and consensus in Polkadot. In part 1, we will define some terms before getting into the details of how Polkadot creates and secures blocks.