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A Wild Velvet Fork Appears! Inclusive Blockchain Protocol Changes in Practice (Short Paper)

机译:出现野生天鹅绒叉子!包容性区块链协议的实践变更(论文摘要)

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摘要

The loosely defined terms hard fork and soft fork have established themselves as descriptors of different classes of upgrade mechanisms for the underlying consensus rules of (proof-of-work) blockchains. Recently, a novel approach termed velvet fork, which expands upon the concept of a soft fork, was outlined in [22]. Specifically, velvet forks intend to avoid the possibility of disagreement by a change of rules through rendering modifications to the protocol backward compatible ana! inclusive to legacy blocks. We present an overview and definitions of these different upgrade mechanisms and outline their relationships. Hereby, we expose examples where velvet forks or similar constructions are already actively employed in Bitcoin and other cryptocurrencies. Furthermore, we expand upon the concept of velvet forks by proposing possible applications and discuss potentially arising security implications.
机译:宽松定义的术语硬分叉和软分叉已将其自身确立为(工作量证明)区块链的基本共识规则的不同类升级机制的描述符。最近,在[22]中概述了一种称为天鹅绒叉的新颖方法,该方法扩展了软叉的概念。具体地说,天鹅绒叉旨在通过对协议的向后兼容模拟进行修改来避免因规则更改而产生分歧的可能性!包含旧版块。我们对这些不同的升级机制进行了概述和定义,并概述了它们之间的关系。在此,我们展示一些例子,其中天鹅绒叉或类似构造已在比特币和其他加密货币中得到积极采用。此外,我们通过提出可能的应用扩展了天鹅绒叉的概念,并讨论了潜在的安全隐患。

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