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Submarine swap

An atomic exchange between on-chain bitcoin and Lightning balance using linked hash and timelock conditions.

An atomic exchange between on-chain bitcoin and Lightning balance using linked hash and timelock conditions.

An atomic exchange between on-chain bitcoin and Lightning balance using linked hash and timelock conditions. This coordinate is placed in the wider system through its protocol, economic and historical relationships.

Understanding Submarine swap helps distinguish a verifiable Bitcoin mechanism or historical record from slogans, products and market narratives.

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Linked to related atlas coordinates

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Grounded in a source record

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Explains function and trade-offs

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Part of the open Bitcoin knowledge graph

DOC · 001Lightning Labs — Submarine swapsDocumentation
Reviewed 25 July 2026Source-first · No investment advice