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diff --git a/report/main.tex b/report/main.tex index 8b5d756..e7e5f12 100644 --- a/report/main.tex +++ b/report/main.tex @@ -38,6 +38,22 @@ \begin{document} \maketitle +\begin{abstract} +Proofs of Space is a recently proposed alternative to Proofs of Work in which + the access to a shared resource is restricted by forcing the service + requester to dedicate some amount of disk space. + + At the core of Proofs of Space is a cryptographic data structure known as + Merkle trees and a challenge/answer interactive protocol using this tree. + The question is then to understand the trade-offs in designing the data + layout and data access methods of a Proof of Space system to make the + protocol as efficient as possible. + + We propose several strategies, both for the Merkle tree construction and + for the proof retrieval phase and compare their relative advantages from + the systems perspective. +\end{abstract} + \section{Introduction} \paragraph{Proofs of Work.} Proofs of Work (PoW) were introduced in the early |