as a souvenir and certificate for students who have attended the DHS 2202 course on blockchain and cryptocurrency. It will be distributed to all students through their email address. The course includes 16 hours of lectures, 8 hours of tutorials, group chat and homework: https://ckxpress.com/defi-course/

For those who have joined Civic Liker Web3. Since 21st February 2022, Civic Likers could reward authors by LikeCoin staking reward and enjoyed LikeCoin DAO voting rights, which all took place on-chain. This marked a big step to sustainable publishing. ISCN: iscn://likecoin-chain/osZl1vgJcU1mCk1VcM35SotC-KX3N_EZuY2XaxuBxAo

For those who joined Civic Liker Classic. On 21st May 2019, Stand News, Citizen News, Hong Kong In-media and Matters joined Civic Liker, building a communion of contents together with all independent websites and authors. ISCN: iscn://likecoin-chain/oPVqXKtkbJLl5MNDlQs2rJfS9DQRYOHnQYjeYyCUVEQ/