Some of the key factors that are considered when evaluating the authenticity of a work include:
* Provenance: This refers to the history of ownership of a work, and can be an important indicator of its authenticity. A work with a clear and well-documented provenance is more likely to be genuine than one with a murky or incomplete ownership history.
* Materials and techniques: The materials and techniques used to create a work can also provide clues about its authenticity. For example, if a work is claimed to be from a particular time period, but the materials and techniques used were not available at that time, it is likely to be a forgery.
* Style and execution: The style and execution of a work can also be important indicators of its authenticity. A work that is consistent with the artist's known body of work is more likely to be genuine than one that is stylistically different or poorly executed.
* Expert opinion: The opinions of experts in the field of art, literature, or other creative works can also be valuable when determining the authenticity of a work. Experts can provide their insights on the materials, techniques, style, and execution of a work, and can help to identify any red flags that may indicate that it is a forgery.
The controversy surrounding authenticity of work can be a complex and contentious issue, and there is no single, definitive answer to the question of whether a particular work is genuine or not. However, by carefully considering the factors discussed above, it is possible to make informed judgments about the authenticity of a work.