It is on public record.
Treaty of Versailles - Wikipedia
"Of the many provisions in the treaty, one of the most important and controversial was: "The Allied and Associated Governments affirm and Germany accepts the responsibility of Germany and her allies for causing all the loss and damage to which the Allied and Associated Governments and their nationals have been subjected as a consequence of the war imposed upon them by the aggression of Germany and her allies." The other members of the Central Powers signed treaties containing similar articles.
This article,
Article 231, became known as the War Guilt clause. The treaty
required Germany to disarm, make ample territorial concessions, and pay
reparations to certain countries that had formed the Entente powers. In 1921 the total cost of these reparations was assessed at 132 billion
gold marks (then $31.4 billion or £6.6 billion, roughly equivalent to US$442 billion or UK£284 billion in 2022).
Prominent economists such as
John Maynard Keynes declared the treaty too harsh—a "
Carthaginian peace"—and said the reparations were excessive and counter-productive. On the other hand, prominent Allied figures such as French Marshal
Ferdinand Foch, criticized the treaty for treating Germany too leniently. This is still the subject of ongoing debate by historians and economists.
The result of these competing and sometimes conflicting goals among the victors was a compromise that left no one satisfied. In particular, Germany was neither
pacified nor conciliated, nor was it permanently weakened."