Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Privacy-Preserving P2P Energy Market on the Blockchain   Quartierstrom creates a peer-to-peer marketplace for locally generated solar
power. The marketplace is implemented as a smart contract on a permissioned
blockchain governed by all prosumers. Two privacy-by-design concepts are
presented which guarantee that the users individual load profile is not leaked
to any third party despite using a blockchain. The first approach leverages
UTXO based coin mixing protocols in combination with an account-based on-chain
smart contract. The second approach relies on an off-chain smart contract
running in trusted execution environments.

24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph