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I have a one year research project in my MSc curriculum. So i was suppose to address a existing issue in bitcoin protocol. Highly appreciate if someone can advise me and give me some ideas.

Thank you.

closed as too broad by Greg Hewgill, dchapes, John T Apr 25 '14 at 20:44

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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Selfish mining is probably one of the most addressed issues that was theorized by a group at Cornell university. I find this interesting, because rather than being a technical issue such as transaction malleability, it is more of a conceptual issue with how Bitcoin and its consensus system works.

That should get you started and give you some food for thought.

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