suppression, prohibition, or restriction of information, speech, or media by an authority
forms: prior restraint (pre-publication), post-publication removal, platform deplatforming, DNS seizure, IP blocking, search delisting
state censorship: Great Firewall of China, internet shutdowns (Iran, Myanmar, Russia), book banning, press control
corporate censorship: content moderation policies, algorithmic suppression, shadow banning, app store gatekeeping
self-censorship: individuals adjusting behavior under threat, the chilling effect
historical: Index Librorum Prohibitorum, Samizdat, book burnings
Streisand effect: attempts to suppress information increase its spread
cyber is a censorship-resistant knowledge graph: content-addressed storage, cryptographic authorship, permissionless participation, distributed infrastructure
IPFS provides the storage layer for censorship-resistant content: content addressing means data persists as long as any node pins it
the antidote to censorship is redundancy, encryption, and decentralization
see also surveillance, propaganda, human rights, revolution