It would be a lot harder. This case pretty much only exists because neither party has the documentation need to prove or disprove that Pete(r) Doig(e) was or wa

It would be a lot harder. This case pretty much only exists because neither party has the documentation need to prove or disprove that Pete(r) Doig(e) was or was not incarcerated during the timespan the painting was made. Nowadays, asking the prison and/or asking former employers is pretty much a triviality.