let content_type = remove_field(&mut fields, &CONTENT_TYPE_TAG);
    let metadata = remove_and_concatenate_field(&mut fields, &METADATA_TAG);
    let metaprotocol = remove_field(&mut fields, &METAPROTOCOL_TAG);
    let parent = remove_field(&mut fields, &PARENT_TAG);
    let pointer = remove_field(&mut fields, &POINTER_TAG);

    let unrecognized_even_field = fields
      .keys()
      .any(|tag| tag.first().map(|lsb| lsb % 2 == 0).unwrap_or_default());

    Self {
      payload: Inscription {
        body: body.map(|i| {
          envelope.payload[i + 1..]
            .iter()
            .flatten()
            .cloned()
            .collect()
        }),
        content_encoding,
        content_type,
        duplicate_field,
        incomplete_field,
        metadata,
        metaprotocol,
        parent,
        pointer,
        unrecognized_even_field,
      },
      input: envelope.input,
      offset: envelope.offset,
      pushnum: envelope.pushnum,
    }
  }
}

impl ParsedEnvelope {
  pub(crate) fn from_transaction(transaction: &Transaction) -> Vec<Self> {