.expect("should find sat commit/inscription output");

    reveal_inputs[commit_input] = OutPoint {
      txid: unsigned_commit_tx.txid(),
      vout: vout.try_into().unwrap(),
    };

    let (mut reveal_tx, _fee) = Self::build_reveal_transaction(
      &control_block,
      self.reveal_fee_rate,
      reveal_inputs,
      commit_input,
      reveal_outputs.clone(),
      &reveal_script,
    );

    if reveal_tx.output[commit_input].value
      < reveal_tx.output[commit_input]
        .script_pubkey
        .dust_value()
        .to_sat()
    {
      bail!("commit transaction output would be dust");
    }

    let mut prevouts = vec![unsigned_commit_tx.output[vout].clone()];

    if let Some(parent_info) = self.parent_info.clone() {
      prevouts.insert(0, parent_info.tx_out);
    }

    let mut sighash_cache = SighashCache::new(&mut reveal_tx);

    let sighash = sighash_cache
      .taproot_script_spend_signature_hash(
        commit_input,
        &Prevouts::All(&prevouts),
        TapLeafHash::from_script(&reveal_script, LeafVersion::TapScript),