Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Short Paper: Design and Evaluation of Privacy-preserved Supply Chain
  System based on Public Blockchain   Securing the traceability of products in the supply chain is an urgent issue.
Recently, supply chain systems that use public blockchain (PBC) have been
proposed. In these systems, PBC is used as a common database shared between
supply chain parties to secure the integrity and reliability of distribution
information such as ownership transfer records. Thus, these systems secure a
high level of traceability in the supply chain. However, the distribution
information, which can be private information, is made public since the
information recorded in PBC can be read by anyone. In this paper, we propose a
method for preserving privacy while securing traceability in a supply chain
system using PBC. The proposed method preserves privacy by concealing the
distribution information via encryption. In addition, the proposed method
ensures distribution among legitimate supply chain parties while concealing
their blockchain address by using a zero-knowledge proof to prove their
authenticity. We implement the proposed method on Ethereum smart contracts and
evaluate cost performance based on transaction fees. The results show that the
fee per party is at most 2.6 USD.

24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg