The authorities in Vitoria da Conquista, Bahia state, call the microchipped T-shirts "intelligent uniforms".

BBC: Brazilian schools microchip T-shirts to cut truancy

The authorities in Vitoria da Conquista say the T-shirts can be washed and ironed without damaging the chips.

BBC: Brazilian schools microchip T-shirts to cut truancy

The video is understood to show Mr Landeros stencilling an image of a bullfighter, a bull and the word 'conquista' - the Spanish word for conquest - on Picasso's 1932 work Woman in a Red Armchair.

BBC: Picasso 'vandal' surrenders to authorities