Determining the earliest point in time when an object can be proven to exist is a challenging task, as it depends on several factors, such as the nature of the object, available evidence, and the methods used for verification.
In general, the existence of an object can be established through direct observation or through indirect evidence and inference. For objects that exist in the present or have left physical traces, such as artifacts, fossils, or historical records, their existence can often be verified based on the available evidence.
However, when it comes to the very early moments of the universe, it becomes increasingly difficult to establish direct evidence due to various limitations. For example, the universe itself is believed to have originated in the Big Bang around 13.8 billion years ago, and our understanding of the physical laws and conditions during the earliest moments is limited.
Cosmological observations, such as the cosmic microwave background radiation, provide valuable insights into the early universe and its evolution. These observations support the Big Bang theory and help us understand the conditions that prevailed shortly after the universe's formation.
While scientific theories and models can provide insights into the existence and behavior of objects in the early universe, the concept of "proof" becomes more nuanced and relies on the cumulative weight of evidence, theoretical consistency, and empirical support.
In summary, the ability to establish the existence of an object in the early moments of time depends on the specific object and the available evidence, with the earliest points often being associated with the cosmological events of the early universe.