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A decentralized CDN: nodes bond stake, cache content-addressed blobs, and earn per-MB USDC payments from a shared on-chain pool (ADR 003). Built in Rust on iroh QUIC.

Status: public testnet on Arbitrum Sepolia (launch post). Wire, config, and storage formats can change without compatibility shims until mainnet. Try it with a one-line installer, no wallet needed: see the quickstart.

• decdn: the core monorepo. Node daemon, decdn CLI, client SDK, sponsorship daemon, Solidity contracts, and the ADRs behind the design. Most work happens here.
• sdk-typescript and sdk-python: clients for Node.js, browsers, and Python that talk to a decdn gateway.
• android-demo, ios-demo, and browser-demo: demo apps that download and verify content from a sponsored pool.
• devops: deploy and run a node with Docker Compose, Ansible, cloud-init, or Helm.
• stats: the network dashboard at stats.decdn.org.
• website: decdn.org, the blog, and docs.decdn.org.
• iroh-tests: reproductions of upstream iroh issues found while building deCDN.

Start with the ADR reading order and CONTRIBUTING.md. To run a node, see the operator guide.

Questions go in issues or on Discord. Report vulnerabilities privately per SECURITY.md.

Code is dual-licensed under MIT OR Apache-2.0.