Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reputation-based PoS for the Restriction of Illicit Activities on
  Blockchain: Algorand Usecase   In cryptocurrency-based permissionless blockchain networks, the decentralized
structure enables any user to join and operate across different regions. The
criminal entities exploit it by using cryptocurrency transactions on the
blockchain to facilitate activities such as money laundering, gambling, and
ransomware attacks. In recent times, different machine learning-based
techniques can detect such criminal elements based on blockchain transaction
data. However, there is no provision within the blockchain to deal with such
elements. We propose a reputation-based methodology for response to the users
detected carrying out the aforementioned illicit activities. We select Algorand
blockchain to implement our methodology by incorporating it within the
consensus protocol. The theoretical results obtained prove the restriction and
exclusion of criminal elements through block proposal rejection and attenuation
of the voting power as a validator for such entities. Further, we analyze the
efficacy of our method and show that it puts no additional strain on the
communication resources.

31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph