I believe the RIPE NCC already makes extra steps when a request does not appear to be legitimate, therefore I don't think there is much else that can be done although cryptography could be used to reduce the risks of impersonation. However, I am vigorously against asking national governments for their participation, with special mention for the Ukrainian government. In general, governments are not fond of systems that allow people to communicate in p2p without interferences, however the Ukrainian government is a particularly ferocious enemy of the Internet and it is important the RIPE NCC does not allow them any interference in how resource allocation is organized. Also, appeal to emotion is being used by some people trying to pretend to be some sorts of heroes or white knights of Ukraine by insinuating that the hijacking could only necessarily be perpetuated by Russian invaders as if there were not hoarders in Ukraine just as capable of doing this without any support from Russia. There is anyway a strong incentive for this to happen in both countries as IPv6 is practically inexistent but the remains of a bygone era when the development of the Internet was thriving in both countries resulted in a lot of resources being allocated there. Also, I back Max Tulyev's comment, it is important to repeat that Ukraine is a country where there is no freedom of speech, no free press, no political opposition, not even fake opposition, and no democracy. In fact, any critic of the government will result in yourself being labeled an enemy of Ukraine, a collaborator, a terrorist or as a person justifying the invasion. This can result in your arbitrary arrest or worse. The government also uses terror such as the Martial Law to deter people from having the slightest ambition to criticize them. Other violations of human rights and the constitution perpetrated by the government of Ukraine include attacking ISPs that provide free and neutral Internet, persecuting their owners and employees, threatening to label them as collaborators and trying to shut them shutdown. Ukraine has an agency called NKRZI, a clone of Russia's roskomnadzor, dedicated to this activity. Public threats to ISPs can be found at their web site. As such, the credibility and legitimacy of requests coming from persons and entities from Ukraine using emotional speech with rambling about democracy and freedom and claiming to be representative of the whole community should be questioned and challenged. In fact, I consider it a waste to allocate public resources to those who lack basic understanding for the ethics involved in operating an ISP. And if I were an extremist and dicatator, I would revoke resources that have been allocated to them and I think we would recover a lot of space.