Ulay’s Mysterious New Performance Takes a Dig at Marina Abramović
https://news.artnet.com/exhibitions/ulay-enacts-performance-without-marina-abramovic-452084
codes in the art
https://www.gpo.gov/fdsys/pkg/CFR-2007-title48-vol3/pdf/CFR-2007-title48-vol3-sec252-222-7006.pdf