Types of Blockchains
Learn about the four main types of blockchains

Get a BlockDAG Certificate in Blockchain
This short course is part of the BlockDAG Blockchain Series. Once you complete all of the activities in this course, you can take a short test to gain your Certificate in The Types of Blockchain.
Earn a BlockDAG Badge
On completion of this course, you will automatically be awarded a BlockDAG Badge that is proof of you taking this course. Your badge is recorded as an immutable record on the BlockDAG Blockchain. The more courses you do the more BlockDAG Badges you collect!
This Course ...
BlockDAG is a Layer 1 proof of work consensus mechanism that evolves the crypto sphere with a cutting-edge Directed Acyclic Graph structure building on the foundations of Bitcoin