Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tiramisu: Layering Consensus Protocols for Scalable and Secure
  Blockchains   Cryptocurrencies are poised to revolutionize the modern economy by
democratizing commerce. These currencies operate on top of blockchain-based
distributed ledgers. Existing permissionless blockchain-based protocols offer
unparalleled benefits like decentralization, anonymity, and transparency.
However, these protocols suffer in performance which hinders their widespread
adoption. In particular, high time-to-finality and low transaction rates keep
them from replacing centralized payment systems such as the Visa network.
Permissioned blockchain protocols offer attractive performance guarantees, but
they are not considered suitable for deploying decentralized cryptocurrencies
due to their centralized nature. Researchers have developed several
multi-layered blockchain protocols that combine both permissioned and
permissionless blockchain protocols to achieve high performance along with
decentralization. The key idea with existing layered blockchain protocols in
literature is to divide blockchain operations into two layers and use different
types of blockchain protocols to manage each layer. However, many such works
come with the assumptions of honest majority which may not accurately reflect
the real world where the participants may be self-interested or rational. These
assumptions may render the protocols susceptible to security threats in the
real world, as highlighted by the literature focused on exploring
game-theoretic attacks on these protocols. We generalize the "layered" approach
taken by existing protocols in the literature and present a framework to
analyze the system in the BAR Model and provide a generalized game-theoretic
analysis of such protocols. Using our analysis, we identify the critical system
parameters required for a distributed ledger's secure operation in a more
realistic setting.

23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics