Public blockchains should be able to scale with respect to the number of nodes and to the transactions workload. The blockchain scalability trilemma has been informally conjectured. This is related to scalability, security and decentralization, stating that any improvement in one of these aspects should negatively impact on at least one of the other two. In fact, despite the large research and experimental effort, all known approaches turn out to be tradeoffs. We theoretically describe a new blockchain architecture that scales to arbitrarily high workload provided that a corresponding proportional increment of nodes is provisioned. We show that, under reasonable assumptions, our approach does not require tradeoffs on security or decentralization. To the best of our knowledge, this is the first result that disprove the trilemma considering the scalability of all architectural elements of a blockchain and not only the consensus protocol. While our result is currently only theoretic, we believe that our approach may stimulate significant practical contributions.

Monte, G.D., Pennino, D., Pizzonia, M. (2020). Scaling blockchains without giving up decentralization and security: A solution to the blockchain scalability trilemma. In CRYBLOCK 2020 - Proceedings of the 3rd Workshop on Cryptocurrencies and Blockchains for Distributed Systems, Part of MobiCom 2020 (pp.71-76). ;2 Penn Plaza, Suite 701 : Association for Computing Machinery [10.1145/3410699.3413800].

Scaling blockchains without giving up decentralization and security: A solution to the blockchain scalability trilemma

Pennino D.
;
Pizzonia M.
2020

Abstract

Public blockchains should be able to scale with respect to the number of nodes and to the transactions workload. The blockchain scalability trilemma has been informally conjectured. This is related to scalability, security and decentralization, stating that any improvement in one of these aspects should negatively impact on at least one of the other two. In fact, despite the large research and experimental effort, all known approaches turn out to be tradeoffs. We theoretically describe a new blockchain architecture that scales to arbitrarily high workload provided that a corresponding proportional increment of nodes is provisioned. We show that, under reasonable assumptions, our approach does not require tradeoffs on security or decentralization. To the best of our knowledge, this is the first result that disprove the trilemma considering the scalability of all architectural elements of a blockchain and not only the consensus protocol. While our result is currently only theoretic, we believe that our approach may stimulate significant practical contributions.
9781450380799
Monte, G.D., Pennino, D., Pizzonia, M. (2020). Scaling blockchains without giving up decentralization and security: A solution to the blockchain scalability trilemma. In CRYBLOCK 2020 - Proceedings of the 3rd Workshop on Cryptocurrencies and Blockchains for Distributed Systems, Part of MobiCom 2020 (pp.71-76). ;2 Penn Plaza, Suite 701 : Association for Computing Machinery [10.1145/3410699.3413800].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/375274
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