In 2017, he claimed to have discovered mummies presented, throughout his crowdfunding campaign, as potential biological relics of an unknown species, possibly of extraterrestrial origin.

[13][14] As per February 2013, the Ministry of Culture from Lima has not made any decision and negotiations are ongoing,[6] and Jamin hopes for a new study conducted by a third party.

[17] On behalf of the Inkari Cusco Institute, he organizes a fundraiser on the participatory financing site Ulule, which enables him, on March 12, 2017, to collect 39,510€ with the aim of "carrying out in various laboratories of international renown the complete analyses" of these "materials".

On July 11, 2017 a conference takes place at Lima's Swiss Hotel, presented by ufologist Jaime Maussan in the company of José de la Cruz Rios and José de Jesús Zalce Benítez,[20] which reveals nothing new or specific; simultaneously, Thierry Jamin, who had previously announced that he would attend the Swiss Hotel conference, exhibits live on YouTube[21] the results of his own analyses, concluding that there is nothing extraterrestrial about the mummies on display.

On June 28, 2017, Professor Rodolfo Salas-Gismondi of the Division of Paleontology at the American Museum of Natural History in New York denounced the scientific sham represented by the so-called "alien mummy of Nasca".

The press release goes on to denounce the authors of these productions and those exploiting them, calling these practices "criminal abuse" that "violates human dignity in a profound way", as well as "numerous national and international norms that watch for the defense of Cultural Heritage".

[26] On August 3, 2017, anthropology professors John Hoopes[27] and Jennifer Raff[28] of the University of Kansas call the project pseudoscientific and denounce its lack of respect for indigenous peoples.

[31] On 13 September 2023, at a session of the Mexican Congress devoted to UFOs,[32] journalist and ufologist Jaime Maussan declared authentic these «Peruvian three-fingered mummies», presenting them as potential evidence of non-human life forms, and stating that scientists from the National Autonomous University of Mexico (UNAM) had concluded that these remains were «not part of our terrestrial evolution» and that almost a third of their DNA was «of unknown origin».

[37] On 7 November 2023, at a second session of the Mexican UFO Congress, Jaime Maussan, together with anthropologist Roger Zúñiga Avilés (of the controversial[30] Universidad Nacional San Luis Gonzaga de Ica) and Thierry Jamin (introduced as «Thierre Maurice Pierre, researcher at Institut Inkari»,[38] declared, with the support of a group of Peruvian doctors, that the specimens were probably false but that the bodies were real.