It's way harder to fake physical measurements (like weather, solar activity, etc) published by international bodies, You could maybeeee influence the least sign

It's way harder to fake physical measurements (like weather, solar activity, etc) published by international bodies, You could maybeeee influence the least significant digit but even this would be hard without cooking up experimental data. Maybe get physical measurements, stock exchange data, newspaper headlines, and bitcoin blocks, all in 6 months in the future, and XOR all of them.