
Nostr: How to Become Self-Sovereign Online
A Talk by Jordi Llonch Esteve (Head of Growth, Satlantis.io)
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About this Talk
In this session, Jordi Llonch Esteve, a passionate advocate of decentralization, introduces Nostr—a lightweight, censorship-resistant protocol designed to return control of online identity and communication to the individual. With social media platforms and online services increasingly centralized, Nostr offers an alternative vision: one where identity is cryptographically secured, data is portable, and no single authority can silence or deplatform users. For those building or living in Free Cities, where self-governance and autonomy are foundational values, this talk explores how the same principles can—and should—be applied in the digital realm. Whether you’re new to Nostr or already experimenting with decentralized tools, this session offers a compelling case for integrating digital sovereignty into the Free Cities vision.