Blockstream CEO Adam Back has publicly defended Bitcoin's peer-to-peer (P2P) node system amid growing criticism. In a recent post on X, Back warned that any attempts to undermine decentralization could threaten Bitcoin's core sovereignty. He stressed the importance of decentralized and anonymous P2P nodes for maintaining individual sovereignty and the system's robustness. Back's comments come in response to recent proposals from Bitcoin Core developers, including a controversial change to OP_RETURN, which has sparked concerns over transaction speed and blockchain bloat. He criticized efforts to centralize control and override user preferences, highlighting the global network of nonprofits, volunteers, and contributors that support the Bitcoin ecosystem.