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Short Channel IDs

lightning.short-channel-id

A Short Channel ID compactly identifies a Lightning channel's funding output by encoding its block height, transaction index, and output index. It lets gossip messages refer to the same on-chain channel without repeating the full transaction outpoint.

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Curated resources (3)

• BOLT 07: Short Channel ID (article) Canonical encoding and use of the identifier in Lightning gossip.
• BOLT 03: Funding Transaction Output (article) Connects the identifier to the on-chain funding output that creates a channel.
• Mastering the Lightning Network (book) Technical background for channel identifiers, gossip, and Lightning routing.

Direct prerequisites (2)

• Block Height
• Payment Channels

Direct dependents (0)

• None

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