I like it but for the tasks are for people with programming language. I personally don't have this but wanted to work out the mechanics of the Bitcoin, and cryptography. Although the learning material is great and not too detailed so someone like myself can learn the basics, I am unable to pass the course due the programming tasks

Course was globally good and provided an overall knowledge around cryptocurrencies and bitcoin. However, I find the exercises not related to the lessons and not well timed in the global course. Nothing really prepares you correctly for exercise 3 for instance, which took me quite a long time to figure out.

对于了解比特币，还不错，作业内容实用性不强，前后逻辑还有同可能内容关联性不大。

The videos were quite good even if some of them should be updated. But the code assignments were confusing and not focussed on the problem. Errors from the automatic evaluator were not helpful at all. I wasted a lot of time doing the homework that didn't teach me too much. So 4 starts for the videos and 1 star for the womework.

Should have more lesson about alt coins and develop a Blockchain. Also tell more about concurrences of blockchain (tangle, hashgraf and so on).

Should have explicit the need of java programming.

The contents of this course are above reproach. A thorough introduction to the BlockChain and BitCoin are given with a large number of associated topics discussed in some depth. I personally would have prefered a bit more depth on cryptography, but I suppose that the teachings cannot cater to all tastes.

The reason why I dropped two stars is the organisational framework around the course, i.e:

1) From the presentation of the course on the Coursera platform it was to me not clear that assignments are programming assignments in Java. Completing this course requires you to have advanced knowledge and programming experience in this language. That should be made clear much more explicitly in the catalog

2) The exercise framework doesn't work very well. Partially quizzes appeared randomly during the videos. The automatic grader can be a real pain. Way below similar graders as used by e.g. Udacity and really beyond the pole. It left me with the impression that this had not been put together very carefully.

3) AFTER I finished the course, I was made aware of the fact that there is no certificate of completion for this course. It was suggested that I take a snapshot of the course home. Well, that's going to leave a really professional impression with my clients (sarcasm intended).

Good information even if it could be explained in a better manner. The labs are very poorly designed with vague requirements and poor grading logic.

I had troubles in understanding assignments. I think they should be more descriptive

Assignments were vague and too much time had to be spent on unnecessary things like browsing forums.

Great course , very informative and a good general introduction to bitcoin, and blockchain technology Thanks for lecturers highly recommended.

The theoretical content of the course is interesting and it gives an excellent overview of the cryptocurrency technologies through the example of bitcoin. The course also extend to alt coins and the discuss the possible challenge blockchains can help addressing beyond the purely cryptocurrency field which is interesting.

The programming assignment could however be improved. First they required a strong knowledge of java which can exclude some students. But the real issue is the lack of satisfactory explanations and guidance that sometimes make it impossible to fully resolve the practical, or even what is expected from the student.

Sometimes you can get the best mark while your code is either incorrect or not adressing the logic fully. Sometimes you run into technical limitations on the platform (memory limitation) which despite a good algorithm doesn't allow you to submit your answer. It then forces you to spend time on improving the quality of your code to save the memory used by your program (thus requiring strong java knowledge) which is time consuming and not the purpose of this course.

Overall I would advise to do the course. I would however strongly encourage Coursera/Princeton to review the assignments so that they can best help students in the understanding of the complex notions discussed in this course.

The course covered a lot of things, but the programming assessments are very poor. In first the assessments the bonus task is basically not about blockchain, but rather about graphs. I would recommend adding to course more small coding assignments to get familiar with blockchain and bitcoin platform in a more practical way.

This was a tedious and boring course! the assignments were impossible to decipher and I fail to see the end result of the point of the coins. Wouldn't it make more sense to have some form of physical currency or bartering instead?

Lectures were extremely good, but assignments and graders were very low quality and difficult to decipher requirements from. Professors and TAs were not active in the forums.

Data from 2014 isn't useful in today's environment. Although fundamentals are clearly valid tpday, an update to course is mandatory

ntm

Not efficient use of slides and real time explanation using hand

This course was a little too advanced for me and not quite what I had in mind.

I think that it would be a good idea to improve the grader, release more informative assignment information (take a look at the Algorithms course for example) and lecture materials in pdf format.

Not a big fan of this course. I wanted to learn about the different types of currencies and their usage, but these guys go way too deep into the code structure, even making the 1st assignment code based. Just because I am interested in cars, doesn't mean I necessarily have to know how to build one. I merely need to know some base facts, it's safety, handling, fuel economy, size etc. Their approach is way more mundane and impractical for daily needs of working with Cryptocurrencies, going way too deep into early theory and applications.

Too fast not spending enough time on the concepts

Very outdated. Since 2014 the content about fees, mining, forks, etc change a lot

Difficult to understand. Teachers were too stiff and not very warm to explain. Concepts were too technical and sometimes was difficult to understand the general ideas. Assignments were not very good explained and it was difficult to understand and the errors were not very helpful.

I saw initially in the comment section about the course that it talked about Java a bit, but I was under the impression that we would only be discussing it, not throwing some code together for our first assignment. I know the basics for Python, HTML, and CSS, but I really don't have time to learn Java just to pass this class. I was hoping the class would be more about the basics of cryptocurrency so I could have a better understanding for it. I'm extremely disappointed.