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Grunspan, C., & Perez-Marco, R. (2022). On Profitability of Nakamoto Double Spend, Probability in the Engineering and Informational Sciences, 36(3), 732–746. 
Added by: Rucknium (9/13/24, 8:10 PM)   Last edited by: Rucknium (9/14/24, 2:08 PM)
Resource type: Journal Article
DOI: 10.1017/S026996482100005X
BibTeX citation key: Grunspan2022
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Categories: Not Monero-focused
Creators: Grunspan, Perez-Marco
Collection: Probability in the Engineering and Informational Sciences
Views: 44/188
Attachments   grunspan2022.pdf [4/41] URLs   https://www.cambri ... EAB5D3AF2D181AE584
Abstract
Nakamoto doublespend strategy, described in Bitcoin foundational article, leads to total ruin with positive probability. The simplest strategy that avoids this risk incorporates a stopping threshold when success is unlikely. We compute the exact profitability and the minimal double spend that is profitable for this strategy. For a given amount of the transaction, we determine the minimal number of confirmations to be requested by the recipient that makes the double-spend strategy non-profitable. This number of confirmations is only 1 or 2 for average transactions and for a small relative hashrate of the attacker. This is substantially lower than the original Nakamoto number, which is about six confirmations and is widely used. Nakamoto analysis is only based on the success probability of the attack instead of on a profitability analysis that we carry out.
  
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