All world sex chat
"The feeling we have on the Internet is that we are safe there, that no body is looking at us," Verhoeven says.
"We experience a certain sense of secrecy that we share with people whom we don't know.
He is also banned from entering sex chatrooms and from talking to anybody under the age of 18 unless another adult is present.
The details of his software contributions to the FBI are due to be partially released by the court except where their publication could compromise the efficiency of future investigations.
He has threatened legal action against the artist and HAU, accusing both of entrapment.
The artist maintains the project stoked a necessary debate on privacy and identity online.
For five days in early October, Dutch artist Dries Verhoeven broadcast his Grindr chats onto a projection screen inside a glass cube situated on a public square in Berlin's Kreuzberg neighborhood.
He was, however, prosecuted on a second charge of possessing illegal pornographic images on his computer - images he insisted he had been sent automatically, not at his request, by the webmasters whose sites he frequented.
It was cut short on October 5, however, after some users protested, saying it was a violation of their privacy.
Hebel am Ufer (HAU), a state-funded theater which sponsored Verhoeven's project, later held two town hall-style meetings to discuss the merits and failings of the project. An American in his 20s who went over to Verhoeven's cube shortly after it opened became particularly irate when he saw his chat messages and photos being read by the assembled crowd.
In a complex plea bargain, the possession charges were dropped in exchange for a guilty plea on the felony charge of soliciting sex.
He began cooperating with the FBI voluntarily and was told his help might well be judged favourably in the sentencing phase. He has lost his marriage, his job and 95 per cent of his potential wealth because Disney revoked all his stock options.