Coursera — Blockchain Basics

https://www.coursera.org/account/accomplishments/certificate/WY8H5AZZA4AV

Reviews:

The instructor is pretty good. She did a wonderful job in creating the foundation and explaining various different technical modules.

Week 1

Blockchain Basics

Week 2

Ethereum Blockchain

Week 3

Algorithms & Techniques

Week 4

Trust Essentials

You can find more information here