What does decentralisation mean in Bitcoin?
Correct answer
Answer C: Many independent nodes run and verify the network.
Quick explanation
Many independent nodes verify transactions and blocks themselves. This means Bitcoin does not depend on a single authority. In principle, anyone can run their own node without permission from a central authority.
Detailed explanation
Bitcoin does not run on a central server. Independent full nodes connect to several participants, verify blocks and transactions under their own software's rules, and do not accept invalid changes merely because a miner, developer, company or state demands them.
A state or competent authority can nevertheless prohibit, restrict, supervise or require authorization for specific activities within its jurisdiction. These may include exchanges, brokers, custodians, banks, payment providers, mining businesses, merchants, advertising, tax reporting, commercial trading or particular internet connections.
The network's worldwide technical operation therefore does not mean every use is lawful or practically easy everywhere. Conversely, closing a local exchange or mining facility does not automatically end the Bitcoin network. Banning a service provider must also be distinguished from restrictions on ownership, use, mining or payments.
Censorship resistance describes resilience against a single central control point, not complete immunity to laws, infrastructure disruptions or local enforcement. Laws differ by country and can change. This card does not explain how to evade applicable rules; technical and legal claims must be assessed separately.
Censorship resistance means no single body reliably controls the global system. It is not absolute uncensorability: providers can freeze accounts, networks can be blocked locally and transactions can temporarily receive unfavorable treatment. Independent relay and verification increase resilience but do not guarantee successful use in every environment.
Example or everyday application
A state prohibits licensed banks from paying certain crypto exchanges and closes local mining facilities. Access through those banks and businesses is restricted. Users outside the country and independent nodes can continue checking valid blocks. This means neither that every resident may legally use Bitcoin nor that the global network has technically ended. An exchange blocks a withdrawal. That is provider censorship; global consensus rules and other network routes still exist.
Common misconception
Misconception: if Bitcoin keeps running worldwide, government rules cannot have practical effects. Correction: states can substantially restrict providers, banking access, businesses and particular activities even if they cannot switch off the global network with one switch. Misconception: censorship resistance means every transaction is confirmed immediately everywhere. In fact, local, provider and infrastructure restrictions remain possible.
Sources used
Bitcoin Developer Guide - P2P Network
This source is mainly intended for developers. The relevant information may therefore be harder to find.
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