论文标题
支付通道网络下方的层的基本属性（扩展版）
Fundamental Properties of the Layer Below a Payment Channel Network (Extended Version)
论文作者
论文摘要
支付渠道网络是提高加密货币（例如比特币）的可扩展性的高度讨论的方法。当它们允许处理交易外链外链时，支付通道网络被称为第二层技术，而区块链是第一层。我们将支付渠道网络从区块链中取消，并将其视为一流的公民。这提出了一个问题，即付费频道网络作为第一层所需的内容。作为响应，我们将一个模型（称为RFL模型）正式为支付通道网络以下的第一层。虽然交易是由区块链全球提供的，但RFL模型仅提供了交易的简化属性，即交易已交付给受交易影响的用户。我们表明，减少的模型属性仍然足以实现付款渠道。通过证明RFL模型不仅可以由比特币区块链实例化，而且可以由Banks等受信任的第三方实例化，我们表明，减少的缩小可以扩大第一层的设计空间。此外，我们表明，区块链提供的更强的属性允许进行优化，可用于减少付款渠道网络中多个啤酒花付款期间锁定抵押品的时间。
Payment channel networks are a highly discussed approach for improving scalability of cryptocurrencies such as Bitcoin. As they allow processing transactions off-chain, payment channel networks are referred to as second layer technology, while the blockchain is the first layer. We uncouple payment channel networks from blockchains and look at them as first-class citizens. This brings up the question what model payment channel networks require as first layer. In response, we formalize a model (called RFL Model) for a first layer below a payment channel network. While transactions are globally made available by a blockchain, the RFL Model only provides the reduced property that a transaction is delivered to the users being affected by a transaction. We show that the reduced model's properties still suffice to implement payment channels. By showing that the RFL Model can not only be instantiated by the Bitcoin blockchain but also by trusted third parties like banks, we show that the reduction widens the design space for the first layer. Further, we show that the stronger property provided by blockchains allows for optimizations that can be used to reduce the time for locking collateral during payments over multiple hops in a payment channel network.
