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Runtime Evolution of Bitcoin's Consensus Rules
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DOI：10.1109/TSE.2023.3304851.png)
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摘要
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The runtime evolution of a system concerns the ability to make changes during runtime without disrupting the service. Blockchain systems need to provide continuous service and integrity. Similar challenges have been observed in centrally controlled distributed systems or mobile applications that handle runtime evolution, mainly by supporting compatible changes or running different versions concurrently. However, these solutions are not applicable in the case of blockchains, and thus, new solutions are required. This study investigates Bitcoin consensus evolution by analysing over a decade of data from Bitcoin's development channels using Strauss' grounded theory approach and root cause analysis. The results show nine deployment features which form nine deployment techniques and ten lessons learned. Our results illustrate how different deployment techniques fit different contexts and pose different levels of consensus failure risks. Furthermore, we provide guidelines for risk minimisation during consensus rule deployment for blockchain in general and Bitcoin in particular.
Keyword:
Bitcoin
blockchain
consensus
grounded theory
root cause analysis
runtime evolution
期刊
IF:
5.6
论文数:
2.9K
被引数:
1.1W
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