The U.S. Military Is Running a Bitcoin Node, Admiral Paparo Reveals

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The United States military has an active node on the Bitcoin network, according to Admiral Samuel Paparo, commander of U.S. Indo-Pacific Command (INDOPACOM). The disclosure, made at a House Services committee hearing, marks the first known confirmation that a U.S. military combatant command is directly participating in the Bitcoin peer-to-peer network. “We have a node on the Bitcoin network,” Paparo wrote. “We’re doing a number of operational tests to secure and protect networks using the Bitcoin protocol.” The statement landed one day after Paparo made waves in Congress with testimony that framed Bitcoin as a tool of American power. What Paparo said yesterday On April 21, Paparo testified before the Senate Armed Services Committee during a FY2027 defense authorization hearing. Sen. Tommy Tuberville (R-AL) asked Paparo whether U.S. leadership in Bitcoin could give the country an edge against China in the Indo-Pacific theater. Paparo did not deflect. He told the committee that INDOPACOM’s research centers on Bitcoin as a computer science tool — not as a financial asset. “Our research into Bitcoin is as a computer science tool,” Paparo said. “It’s the combination of cryptography, a blockchain, and a proof of work. And Bitcoin shows incredible potential as a computer science tool that through the proof-of-work protocols, actually imposes more cost than just the algorithmic securing of networks and our ability to operate.” He described Bitcoin as “a peer-to-peer, zero-trust transfer of value” and said that “anything that supports all instruments of national power for the United States of America is to the good.” The testimony was notable for what Paparo did not say. He did not describe Bitcoin as a reserve asset, a payment system, or a speculative instrument. He framed it as a computer science system with direct military relevance — a distinction that set his remarks apart from most official government commentary on crypto. What running a Bitcoin node means A Bitcoin node is a computer that runs the Bitcoin software, maintains a full copy of the blockchain, and independently validates every transaction and block against the network’s consensus rules. Nodes do not mine Bitcoin. They enforce the rules of the protocol and relay data across the peer-to-peer network. Running a node gives an operator direct, trustless access to the Bitcoin network without relying on any third party. The operator’s computer connects to other nodes worldwide, verifies incoming transactions and blocks, and rejects anything that violates Bitcoin’s protocol rules. For INDOPACOM, operating a node positions the command as a first-hand participant in the Bitcoin network, not an observer. The disclosure that the military is conducting “operational tests to secure and protect networks using the Bitcoin protocol” suggests the command is moving beyond theoretical research and into active experimentation with Bitcoin’s cryptographic architecture as a defensive tool. As of early 2026, there are an estimated 15,000 to 20,000 publicly reachable full nodes on the Bitcoin network, though the actual number is likely higher since many nodes operate behind firewalls and are not publicly visible. Editorial Disclaimer: We leverage AI as part of our editorial workflow, including to support research, image generation, and quality assurance processes. All content is directed, reviewed, and approved by our editorial team, who are accountable for accuracy and integrity. AI-generated images use only tools trained on properly license material. In Bitcoin, as in media: Don’t trust. Verify.

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