During the Day 1 stream of the Pokémon Japan Championships 2023 which broadcast on June 9th, 2023, a serial code was announced for a Dohtakun based on the one used by 2022 Senior World Champion Yasuharu Shimizu. The code is: 22SEN10RCHAMP and it can be used from June 9th, 2023 until June 11th, 2023 at 23:59 JST in Pokémon Scarlet or Pokémon Violet.

Details:

Level: 50
OT: そらみつ
ID: 230611
Ability: Levitate
Tera Type: Steel
Hold Item: Leftovers
Moves: Body Press, Iron Defense, Protect, Trick Room

Source: https://www.youtube.com/watch?v=YbEb1A5VMb8