1. Would Bitcoin disappear if the global internet went down?
No. Copies of Bitcoin’s blockchain are stored across independent computers and storage systems worldwide. An internet outage would disrupt communication between nodes, but existing blockchain records and previously confirmed balances would remain stored.
2. What would happen to Bitcoin transactions during a global internet outage?
Transactions could become difficult or impossible to propagate across the entire network. Users in disconnected regions could also see different network states, making transaction confirmation and settlement significantly less reliable until connectivity is restored.
3. Could Bitcoin miners continue mining without the internet?
Some isolated miners could theoretically continue producing blocks if they remained connected locally. However, disconnected mining groups could create competing blockchain branches, with Bitcoin’s proof-of-work consensus resolving the valid chain after connectivity returns.
4. Can Bitcoin operate using satellites instead of the internet?
Blockstream Satellite can broadcast Bitcoin blockchain data globally to users with appropriate receiving equipment without conventional internet access. However, receiving blockchain information is different from maintaining full two-way transaction communication across the network.
5. What happens when internet connectivity returns?
Bitcoin nodes would exchange blockchain information and resynchronize according to the network’s consensus rules. The valid chain with the greatest accumulated proof-of-work would prevail, potentially reorganizing transactions contained only in competing branches.