utxoupdatepsbt (0.18.1.5 RPC) utxoupdatepsbt "psbt" Updates a PSBT with witness UTXOs retrieved from the UTXO set or the mempool. Arguments: 1. psbt (string, required) A base64 string of a PSBT Result: "psbt" (string) The base64-encoded partially signed transaction with inputs updated Examples: > elements-cli utxoupdatepsbt "psbt"