pub const LONG_DATE_TIME: &[time::format_description::BorrowedFormatItem<'static>] =
    time::macros::format_description!("[year][month][day]T[hour][minute][second]Z");
pub const EMPTY_PAYLOAD_SHA: &str =
    "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855";