LIGHTNING-SIGNPSBT(7)

okay bestie, welcome to LIGHTNING-SIGNPSBT(7) — the manual page for signpsbt, and she is lowkey iconic 💅

🎀 NAME 🎀

signpsbt — Command to sign a wallet's inputs on a provided bitcoin transaction (PSBT). ✨

🌸 SYNOPSIS 🌸

signpsbt psbt [signonly]

🦋 DESCRIPTION 🦋

signpsbt is a low-level RPC command which signs a PSBT as defined by BIP-174. no cap.

By default, all known inputs are signed, and others ignored: with signonly, only those inputs are signed, and an error is returned if one of them cannot be signed. periodt.

bestie, heads up: the command will fail if there are no inputs to sign, or if the inputs to be signed were not previously reserved. That's a real vibe check fail 😭

• psbt (string) — The psbt to be signed. 🫶
• signonly (array of u32s, optional) — Input numbers to sign.:
  • (u32, optional)

⭐ RETURN VALUE ⭐

On success, an object is returned, containing:

• signed_psbt (string) — The fully signed PSBT. 💖

💀 ERRORS 💀

On failure, one of the following error codes may be returned:

• -32602 — Error in given parameters, or there aren't wallet's inputs to sign, or we couldn't sign all of signonly, or inputs are not reserved.

👑 AUTHOR 👑

Vincenzo Palazzo vincenzo.palazzo@protonmail.com wrote the initial version of this man page, but many others did the hard work of actually implementing this rpc command. iconic behavior, fr fr 🌈

💜 SEE ALSO 💜

lightning-fundpsbt(7), lightning-sendpsbt(7)

🌈 RESOURCES 🌈

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

🍓 EXAMPLES 🍓

✨ Example 1 ✨

Request:

$ lightning-cli signpsbt -k "psbt"="cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000"

{
  "id": "example:signpsbt#1",
  "method": "signpsbt",
  "params": {
    "psbt": "cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000910000"
  }
}

Response:

{
  "signed_psbt": "cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000111000"
}

✨ Example 2 ✨

Request:

$ lightning-cli signpsbt "cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000"

{
  "id": "example:signpsbt#2",
  "method": "signpsbt",
  "params": [
    "cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000101000"
  ]
}

Response:

{
  "signed_psbt": "cHNidP8BAgQCAAAAAQMEbwAAAAEEAQpsbt121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000121000"
}

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