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+# Anubis — Proof-of-Work Wall for Content Protection
+
+**Anubis** is the recommended first-line defense for individual creators against aggressive AI scrapers. Developed by Xe Iaso and the Techaro team, it is a lightweight, self-hosted reverse proxy that forces suspicious clients to complete a JavaScript proof-of-work challenge before they can reach your origin server.
+
+## Why Anubis Matters
+
+Most AI crawlers use headless browsers or high-concurrency scripts that cannot efficiently solve computational challenges. Real human visitors using modern browsers experience only a one-time, sub-second delay. The result is a dramatic (90–95%) reduction in bot traffic within the first week of deployment, as documented across multiple production sites in 2025.
+
+Anubis directly addresses the economic asymmetry described in the primary dissertation: scrapers pay a high per-request cost they did not budget for, while content creators pay almost nothing.
+
+## Key Features for Individuals
+
+- **Hardened policy mode** — Optimized for maximum bot deterrence with minimal human impact.
+- **robots.txt awareness** — Can serve a compliant `robots.txt` on behalf of the origin.
+- **UA and IP reputation integration** — Works seamlessly with the aggressive-bot list maintained in `known-aggressive-bot-user-agents.md`.
+- **Docker and binary deployment** — Runs on a single VPS or behind Cloudflare with zero ongoing maintenance.
+- **Open source (MIT)** — Full transparency and community support.
+
+## How It Fits the Defense Stack
+
+1. **Anubis** (this document) — First filter (PoW challenge).
+2. **Tarpits** (`howto-tarpit-deployment.md`) — Second filter for violators who bypass or ignore the challenge.
+3. **Active techniques** (decompression bombs, malformed content, slowloris) — Third layer for persistent offenders.
+4. **UA reference list** (`known-aggressive-bot-user-agents.md`) — Shared intelligence used by all layers.
+
+## Official Resources
+
+- Project: https://github.com/TecharoHQ/anubis
+- Documentation: https://anubis.techaro.lol/
+- Docker image: `ghcr.io/techarohq/anubis`
+
+## Recommended Starting Point
+
+Deploy Anubis in front of your origin today. It is the single highest-impact, lowest-effort action an individual creator can take to begin reclaiming control of their content.
+
+---
+
+*Anubis is the cornerstone of the passive defense layer. All other techniques in this repository are designed to complement it.*