Overview of major consensus algorithms and which Blockchains use them

[ChrisChinchilla]

This article (or 2-part article) intends to give an overview of the major consensus algorithms, what uses them, why they use them and what benefits/problems they have.

First should open with a brief overview of consensus algorithms prior to Blockchain implemented ones, such as:

• Paxos
• Raft

Then let's cover some of the most common/popular Blockchain algorithms, and mention which Blockchain protocols use them. Feel free to add any missed:

• Proof of work
• Proof of stake
• Proof of capacity
• Proof of stake (incl. Delegated)
• Directed Acyclic Graphs
• Proof of Authority
• Proof-of-Weight
• (Practical) Byzantine Fault Tolerance
• Hotstuff

Guidelines

• We have a technical audience, you can go into details.
• Use simple technical English and as little passive voice and future tense as possible.
• Word count is not a definition of done, covering the topic outlined above is.