id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-13701		cet-13701		6	.pdf	application/pdf	3657	167	50	Procedia Computer Science, 134, 393-398 Chen Y., Chen H., Zhang Y., Han M., Siddula M., Cai Z., 2022, A survey on blockchain systems: Attacks, defenses, and privacy preservation. More secure PoW or PoS mechanisms for adding new blocks can be researched as well.	cache/cet-13701.pdf	txt/cet-13701.txt