Hello @preshdan,
Thank you for taking interest in the 3rd Task of the Beginners’ class. Your grades are as follows:

Criteria	Calculation
Presentation/Use of Markdowns	2/2
Compliance with Topic	2/2
Quality of Analysis	1.8/2
Clarity of Language	1.9/2
Originality	2/2
Total	9.7/10

---

---

The following caught my attention:

A copy blockchain can be downloaded by anyone with an internet connection and as such has complete authority to read or re-write it.

There is no "re-write" function for public chains. That's why they are regarded as immutable.

bitcoin as a public blockchain processes about 4.6 transactions per second

There have been a lot of developments on the speed of public blockchains.

---

Feedback and Suggestions

• You have done some really good research to produce new concepts that make your work rich and informative.

• You have been able to properly express your knowledge on the topic by writing in clear and simple words.

• Always double check your facts before you write.

• Please always try to proofread your work before submitting. There were one or two typos that were very confusing and misleading.

---

---

Thanks again as we anticipate your participation in the next class.