What Is a Bitcoin Node? How Nodes Validate and Relay
A bitcoin node is a computer running software that enforces protocol rules, validates transactions and blocks, and relays data across the network, helping secure decentralization and consensus.
Bitcoin Without Internet: SMS Gateways and Satellites
Examines how bitcoin transactions and blockchain data can travel without standard internet-using SMS gateways, mesh networks, and satellite broadcasts-to increase resilience and global access.