Commemorative tickets are prepared in advance, mainly for domestic ticket buyers in the first two stages, "with pre-printed tickets". Including tickets for the opening and closing ceremonies, mainly composed of "Bird's Nest", Xiangyun and other patterns; It also includes commemorative tickets for sports competitions, mainly featuring sports icons and auspicious clouds.
In the third stage, the audience first got a thermal ticket, which can be printed directly in the bank, and it is a pattern with a gradual change of red, yellow and white.
In other words, the tickets for the first and second stages were pre-printed and called commemorative tickets, and now the third stage is printed on the spot and called hot tickets.