Thank you for the pretty detailed introduction into bitcoin's workings and its potential pitfalls and advantages, as well as open questions for blockchain technology and decentralization. Super grateful for all your efforts guys, thanks again.

Excelente curso para quem quer entender um pouco mais sobre o mercado de Crypto moedas e seus relacionamentos com os mercados, a forma mais correta de uso e as grandes preocupações do mercado, como tratá-las e como se precaver das incertezas.

The videos are very clear and easy to understand. The quality of the material is very good. Personally, I like in-depth materials and I believe this course has the right level for what I´ve looking for regarding bitcoin knowledge. Congrats!

Excellent content. My only gripe is that the programming assignments seem to require intermediate level understanding of OOP and Java, but not being able to complete those assignments doesn't really take away from the benefit of the course.

Very detailed inspection of the Blockchain, cryptocurrencies, security, common problems, algorithms and much more like power utilization. Please be aware you need to be fairly familiar with Java if you wish to be successful in this class.

Amazing course! Before taking this course, I have already read some articles about Bitcoins details and I think I have already known much about Bitcoins, but during the lectures I realized that I misunderstood many things about Bitcoins!

Good introduction to understand the fundamentals of Bitcoin and other cryptocurrencies.

The assignments in JAVA are quite challenging. They are cleverly chosen so that you can understand the problems under the design of a cryptocurrency.

High Level JAVA mapping exercises really energized my brain to understand concepts of bitcoins and blockChains. Perfect course to summarize cryptocurrency and also guides you perfectly in using blockchain code in other domains too.

The best bitcoin course I have found on the internet to date.

Great way to understand the thoughts behind bitcoin technologies.

The authors have found a perfect balance to cover wide range of subjects and getting deep into details.

The course is quite great! At least I wouldn't be silly when talking about the Bitcoin stuff. However, students like me who don't have any previous knowledge about crypto technologies should first read through the text book.....

This is a very good overview course for Bitcoin and underlying blockchain and crypto technology - along with homework that is difficult enough to force one to think a bit and review your java skills. Appreciated and enjoyed.

Great course!

Lectures start from very basics of bitcoins and cryptocurrencies and step by step move to very deep information.

It is one of the most usefull and interesting course at Coursera.

Thanks a lot for teachers!

This course is somehow old 2014, but completely shows the how the bitcoin works, and in fact how crypto currencies work in general. They have an awesome chapter about anonymity. Extra material weeks are really good.

An excellent introduction to BitCoin and BlockChain but this is very dated now, the field has been moving really fast since it is quite nascent and I feel this course should have been updated atleast once by now.

With how rapidly cryptocurrency technology changes, I think the course should be updated (or at least addendum lectures added where appropriate). But this was quite comprehensive and fantastic for a free course!

Excellent course! It not only covers the technical part of bitcoin and cryptocurrency, but also contains a lot of very inspiring discussions about its relation to the real world. I learnt so much from it!

Altocin chapters are outdated but covered fundamentals still hold true and once you understand Bitcoin well you stand on solid ground and ready to venture out on your own. I highly recommend the course!

Great course, a very broad and in-depth overview of concepts surrounding cryptocurrencies and Bitcoin in particular. Would be great to have an update of course; perhaps once the ICO craze is over? (-:

I've gained a strong knowledge of Bitcoin's architecture but wish this course was updated to include the developments of the last two years. A few lectures on alt-coins would have been useful as well.

Excellent intro course into blockchain technology and potential applications could be built on top of it. Also, if you're technical there are programming assignments which reinforce your learning.

A wonderful course with great amount of knowledge. The assignments can be improved a little as the first assignment is some what difficult and can be broken into two assignments some week apart

Very good view of blockchain´s system. I´m an economist, so I hadn´t any studies about some technical concepts but this course has been very useful to understand how Bitcoin protocol works.

Very good course - I finally fully understand how bitcoins work!

It would be nice to see this course updated with the recent developments in cryptocurrencies (smart contracts, Ethereum etc.)

Great course, with materials concerning both technical and sociological aspects of blockchain and cryptocurrency.

I think there can be more exercises and programming assgnments for learners.

Very lucid introduction to the Crypto Currencies and Bit coin. Thanks for the extensive elaborations else sometime I might have fallen into trap of trying to mine Bitcoin with my laptop.