1965/1 - ∞, Detail 511130-512739 

This detail from Roman Opalka's ongoing project, "1965/1 - ∞," is a remarkable example of conceptual art. Opalka began the series in 1965, documenting the passage of time by consecutively numbering each canvas. The series consists of thousands of monochrome paintings and is set to continue indefinitely. The artist’s handwritten numbers, shown here, are meticulously rendered in black on white. The artist's dedication to this concept explores ideas of repetition, endurance, and the passage of time.