Communications of the ACM
Research Archive
The Research archive provides access to all Research articles published in past issues of Communications of the ACM.
July 2018
From Communications of the ACM
Majority Is Not Enough: Bitcoin Mining Is Vulnerable
We propose a practical modification to the Bitcoin protocol that protects Bitcoin in the general case.
From Communications of the ACM
Technical Perspective: The Rewards of Selfish Mining
"Majority Is Not Enough: Bitcoin Mining Is Vulnerable," by Eyal and Sirer, questions the 2009 Bitcoin white paper's implicit assumption of perfect information—that all miners have the same view of the blockchain.