The evidence provided strongly supports the statement that nation-states are accumulating Bitcoin, primarily through the specific case of El Salvador. Multiple sources directly confirm this activity. Social media posts from CoinMarketCap, a high-relevance source in this context, explicitly state that El Salvador created a "Bitcoin reserve" and that its dealings with the IMF involve requirements to "fully disclose its Bitcoin holdings." This serves as direct, verifiable evidence for at least one nation-state actively accumulating and holding Bitcoin in a treasury or reserve capacity.The statement uses the plural "nation-states." While the provided sources only offer concrete proof for one country, the existence of a single, unambiguous case is sufficient to make the statement true. It establishes that the phenomenon of nation-state accumulation is occurring.The high-authority sources like the IMF and ECB do not currently provide an official list of countries holding Bitcoin as a reserve asset in the way the World Gold Council does for gold. This lack of a formal, widespread reporting framework does not contradict the statement but rather indicates that this is an emerging trend that has not yet been institutionalized within traditional reserve asset reporting. The analytical article from the Council on Foreign Relations further supports this by discussing the role of Bitcoin in national reserves, confirming it is a serious consideration at the international policy level.Sources concerning corporate treasuries (Sequans, MicroStrategy) and a general Wikipedia article were correctly identified as irrelevant to the specific claim about nation-states. The low-authority source mentioning Tether was also discounted. In conclusion, the direct evidence regarding El Salvador confirms the activity is happening, making the statement "likely_true" with high confidence.