Who blew up the Nord Stream 2 pipeline?

Prediction market on manifold. Background: https://en.wikipedia.org/wiki/2022_Nord_Stream_pipeline_sabotage Multiple answers will be chosen if more than one actor is involved. “Involved” means has knowledge of the event and contributed to the sabotage prior to its happening. Resolves when there is a clear actor beyond a reasonable doubt.

24h Volume: $24. Liquidity: $11,800. Resolves: 8/28/2028.