Blog

Beyond IPs—Reputation based rate limiting

Nostr is a simple and powerful protocol for decentralized communication. Thanks to its minimalist design — just public keys, signed messages, and open relays — it’s easy to use, easy to build on, and hard to censor. But with that openness comes a big challenge: it’s also easy for bad actors to spam the network…

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April 28, 2025

How to Use Pagerank as a Filter

Making binary decisions—who to serve, who to ignore, who gets access—is a recurring challenge in decentralized networks like Nostr. Whether you’re trying to block spam, prioritize trustworthy users, or reward…

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April 17, 2025

The Battle Against Spam

Spam is the single biggest problem in decentralized networks. Jameson Lopp, co-founder of Casa and OG bitcoiner, has written a brilliant article on the death of decentralized email that paints a vivid picture of what might happen to Nostr…

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April 16, 2025

Why We Don't Use NIP-85

When it comes to the Nostr Web of Trust, several NIPs have been proposed, but the one that seemed to gather the most traction was Trusted Assertion by Vitor Pamplona…

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April 8, 2025

Introducing Vertex

After months of research and development, we’re excited to launch Vertex—delivering fast, high-signal, and easy-to-use Web of Trust for developers and builders…

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February 5, 2025