Description
TL;DR: An early technical effort to build decentralized cryptocurrency consensus without spending the physical resources required by Bitcoin proof of work.
About This Document
Iddo Bentov, Ariel Gabizon, and Alex Mizrahi examine protocols that assign consensus influence according to stake rather than computational expenditure. They review weaknesses in then-popular approaches and present new pure proof-of-stake constructions intended to mitigate them. Bitcoin serves as the security baseline: miners consume electricity and hardware while gaining probabilistic control proportional to their share of total hash power.
Why Bitcoin People May Care
The paper captures proof of stake while its design space was still unsettled and openly compared with Bitcoin's physical-cost model. The source began as a 2014 preprint and this copy carries a 2016 revision. It is a research proposal from that period, not a final verdict on modern PoS networks or proof that resource-free consensus has no tradeoffs.
What You Receive
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Document Details
- Title: Cryptocurrencies Without Proof of Work
- Author / organization: Iddo Bentov, Ariel Gabizon, and Alex Mizrahi
- Year: 2014 paper; 2016 revision
- Language: English
- Document type: Research paper
- Pages: 18
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