The US military has an active node on the Bitcoin network, according to Admiral Samuel Paparo, commander of US Indo-Pacific Command (INDOPACOM). The examination, which took place in the home services Committee The hearing represents the first known confirmation that a US military fighter command is directly involved in the peer-to-peer Bitcoin network.
“We have a node on the Bitcoin network,” Paparo wrote. “We are conducting a number of operational tests to secure and protect networks using the Bitcoin protocol.”
The statement came one day after Paparo made waves in Congress with testimony that portrayed Bitcoin as an instrument of American power.
What Paparo said yesterday
On April 21, Paparo to attest Before the Senate Armed Services Committee during the fiscal year 2027 defense authorization hearing. Sen. Tommy Tuberville (R-Ill.) asked Paparo whether U.S. leadership on bitcoin could give the country an advantage against China in the Indo-Pacific theater.
Paparo did not deviate. He told the committee that INDOPACOM’s research focuses on Bitcoin as a computer science tool — not as a financial asset.
“Our research on Bitcoin is a computer science tool,” Paparo said. “It’s a combination of cryptography, blockchain, and proof-of-work. Bitcoin shows amazing potential as a computer science tool that, through proof-of-work protocols, actually imposes a greater cost than just algorithmically securing networks and our ability to operate.”
He described Bitcoin as a “peer-to-peer, trustless transfer of value” and said that “anything that supports all the instruments of national power of the United States of America is for the good.”
The testimony was notable for what Paparo did not say. He did not describe Bitcoin as a reserve asset, payment system, or speculative instrument. He framed it as a computer science discipline of direct military importance — a distinction that set his remarks apart from most official government commentary on cryptocurrencies.
What does running a bitcoin node mean?
Bitcoin node It is a computer that runs the Bitcoin software, maintains a complete copy of the blockchain, and independently verifies the validity of each transaction and blocks according to the network’s consensus rules. Nodes do not mine Bitcoin. They enforce protocol rules and transmit data over a peer-to-peer network.
Running a node gives the operator direct, trustless access to the Bitcoin network without relying on any third party. The operator’s computer communicates with other nodes around the world, checks incoming transactions and blocks, rejecting anything that violates the rules of the Bitcoin protocol.
For INDOPACOM, running a node places it as a direct participant in the Bitcoin network, not an observer.
The revelation that the military is conducting “operational tests to secure and protect networks using the Bitcoin protocol” indicates that it is moving beyond theoretical research and into active experimentation with Bitcoin’s cryptographic architecture as a defense tool.
As of early 2026, there are an estimated 15,000 to 20,000 publicly accessible full nodes on the Bitcoin network, although the actual number is likely higher since many nodes operate behind firewalls and are not visible to the public.
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