On Reward Sharing in Blockchain Mining Pools
Burak Can, Jens Leth Hougaard, Mohsen Pourpouneh

TL;DR
This paper introduces a new framework for analyzing reward sharing schemes in blockchain mining pools, focusing on fairness criteria based on shares, and characterizes classes of schemes including a generalized proportional scheme.
Contribution
It proposes a novel conceptual framework centered on shares, introduces fairness criteria, and characterizes classes of reward sharing schemes including a generalized proportional scheme.
Findings
Characterization of two classes of reward sharing schemes
Introduction of absolute and relative redistribution fairness criteria
Generalization of the proportional scheme
Abstract
This paper proposes a conceptual framework for the analysis of reward sharing schemes in mining pools, such as those associated with Bitcoin. The framework is centered around the reported shares in a pool instead of agents and results in two new fairness criteria, absolute and relative redistribution. These criteria impose that the addition of a share to the pool affects all previous shares in the same way, either in absolute amount or in relative ratio. We characterize two large classes of economically viable reward sharing schemes corresponding to each of these fairness criteria in turn. We further show that the intersection of these classes brings about a generalization of the well-known proportional scheme, which also leads to a new characterization of the proportional scheme as a corollary.
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Taxonomy
TopicsBlockchain Technology Applications and Security · Auction Theory and Applications
