Description
TL;DR: A payment-channel construction that targets the collateral cost of routing value across several off-chain hops.
About This Document
Andrew Miller, Iddo Bentov, Ranjit Kumaresan, and Patrick McCorry formalize Sprites in a simulation-based security model and provide an Ethereum smart-contract implementation. The paper also develops a general-purpose state-channel primitive.
Why Bitcoin People May Care
Lightning-style routes can force collateral to remain locked as disputes propagate along a path. Existing proposals are described with worst-case lock time proportional to O(ℓΔ); Sprites reduces the construction’s cost to O(ℓ + Δ). That makes it a useful technical comparison for anyone studying payment-channel routing and off-chain settlement.
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Document Details
- Title: Sprites: Payment Channels That Go Faster Than Lightning
- Author / organization: Andrew Miller; Iddo Bentov; Ranjit Kumaresan; Patrick McCorry
- Year: 2017
- Document type: Cryptography and systems paper
- Pages: 24
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