Andrei Molodkin says he has gathered 16 works of art – which he estimates are collectively worth more than $45m (£42.77m) – in a 29-tonne safe with an “extremely corrosive” substance. (*)

Inside the vault are boxes containing the art and a pneumatic pump connecting two white barrels – one with acid powder and the other with an accelerator that could cause a chemical reaction strong enough to turn the safe’s contents to debris, Molodkin claims.

The project – called “Dead Man’s Switch” – is being backed by Assange’s wife Stella, whose husband is awaiting his final appeal against being extradited to the US, where he faces charges under the Espionage Act.

The Wikileaks founder is wanted in America over an alleged conspiracy to obtain and disclose national defence information following the publication of hundreds of thousands of leaked documents relating to the Afghanistan and Iraq wars. The 52-year-old denies any wrongdoing.

He has been held in London’s Belmarsh prison for almost five years and will have his final appeal heard at the High Court in London on February 20 and 21.

Assange’s supporters say he faces 175 years in prison if he is extradited. His lawyer claims the Australian’s life “is at risk” if the appeal fails.

Molodkin told Sky News: “In our catastrophic time – when we have so many wars – to destroy art is much more taboo than to destroy the life of a person.

“Since Julian Assange has been in prison… freedom of expression, freedom of speech, freedom of information has started to be more and more repressed. I have this feeling very strongly now.”

The Russian dissident has refused to reveal which pieces of art are inside the safe but says it includes works by Picasso, Rembrandt, Warhol, Jasper Johns, Jannis Kounellis, Robert Rauschenberg, Sarah Lucas, Santiago Sierra, Jake Chapman, and Molodkin himself, among others.

He says this will be done by “someone close” to Assange confirming he is still alive in prison each day – which will mean the timer can be reactivated.

If Assange is released from prison, the works of art will be returned to their owners, Molodkin adds.

He admits “many collectors are really scared” about the acid going off accidentally but insists the work has been done “very professionally”.

Molodkin says he would feel “no emotion” if the art was destroyed because “freedom is much more important”.

WHO IS CONTROVERSIAL ARTIST ANDREI MOLODKIN?

Andrei Molodkin made headlines last year after selling blood-soaked copies of Prince Harry’s memoir.

The artist had previously projected a sculpture filled with the blood of Afghans on to St Paul’s Cathedral.

Both stunts were in protest over Harry’s remarks in his book about his number of kills in Afghanistan.

Previously, to coincide with the World Cup in Qatar, Molodkin unveiled a replica of the World Cup trophy that slowly filled with crude oil. It had a symbolic price of $150m – a figure that matched the amount of money allegedly spent on bribes and kickbacks to FIFA officials.

Molodkin also presented a sculpture of the White House that reportedly contained the radioactive blood of Nagasaki-born men to commemorate the 77th anniversary of the Hiroshima and Nagasaki atomic bombs.

In 2022, Molodkin showcased a glass portrait of Vladimir Putin which was filled with the blood of Ukrainian soldiers. An image of the artwork was said to have been live-streamed near Moscow’s Red Square as Mr Putin oversaw Russia’s Victory Day parade.

Back in 2013, Molodkin opened an exhibition called Catholic Blood that featured an installation where he pumped blood donated solely by Catholics around his replica of the Rose Window at Westminster Abbey, which he saw as a Protestant symbol.

Mrs Assange, who has two children with her husband, told Sky News: “Which is the greater taboo – destroying art or destroying human life?

“Dead Man’s Switch is a work of art. Julian’s political imprisonment is an act of real terrorism against democracy.

“The true targets here are not just Julian Assange but the public’s right to know, and the future of being able to hold power accountable.

“If democracy wins, the art will be preserved – as will Julian’s life.”

Assange has been held at Belmarsh prison since his arrest in April 2019 after leaving the Ecuadorian embassy in London, where he had claimed political asylum in June 2012.

The UK government approved Assange’s extradition to the US in June 2022.

(*) = https://news.sky.com/story/acid-to-destroy-picasso-rembrandt-and-warhol-masterpieces-if-julian-assange-dies-in-prison-artist-claims-13070078