lightning-openchannel_signed – Command to conclude a channel open

SYNOPSIS

openchannel_signed channel_id signed_psbt

DESCRIPTION

openchannel_signed is a low level RPC command which concludes a channel open with the specified peer. It uses the v2 openchannel protocol, which allows for interactive transaction construction.

This command should be called after openchannel_update returns commitments_secured true.

This command will broadcast the finalized funding transaction, if we receive valid signatures from the peer.

channel_id is the id of the channel.

signed_psbt is the PSBT returned from openchannel_update (where commitments_secured was true) with partial signatures or finalized witness stacks included for every input that we contributed to the PSBT.

RETURN VALUE

On success, returns the channel_id for this channel; hex tx of the published funding transaction; and txid of the funding transaction.

On error, the returned object will contain code and message properties, with code being one of the following:

  • -32602: If the given parameters are wrong.

  • -1: Catchall nonspecific error.

  • 303: Funding transaction broadcast failed.

  • 305: Peer is not connected.

  • 309: PSBT missing required fields.

  • 311: Unknown channel id.

  • 312: Channel in an invalid state

SEE ALSO

lightning-openchannel_init(7), lightning-openchannel_update(7), lightning-openchannel_abort(7), lightning-openchannel_bump(7), lightning-fundchannel_start(7), lightning-fundchannel_complete(7), lightning-fundchannel(7), lightning-fundpsbt(7), lightning-utxopsbt(7), lightning-multifundchannel(7)

AUTHOR

@niftynei <niftynei@gmail.com> is mainly responsible.

RESOURCES

Main web site: https://github.com/ElementsProject/lightning