# deCDN

> Decentralized CDN — staked nodes cache and serve content over QUIC, paid per-MB via off-chain USDC channels.

## Docs

- [Architecture](https://docs.decdn.org/overview/architecture.md): System diagram, roles, and the high-level flow of a paid delivery.
- [Design decisions](https://docs.decdn.org/overview/design-decisions.md): Accepted architecture decision records that define the protocol.
- [Glossary](https://docs.decdn.org/overview/glossary.md): Core terms used across the deCDN protocol and this documentation.
- [How it works](https://docs.decdn.org/overview/how-it-works.md): A walkthrough of cache-hit and cache-miss delivery paths.
- [Introduction](https://docs.decdn.org/overview/introduction.md): What deCDN is and what it isn't.
- [Participants](https://docs.decdn.org/overview/participants.md): Who does what, who bonds, who pays, and who is on- or off-protocol.
- [Content addressing](https://docs.decdn.org/protocol/content-addressing.md): BLAKE3 hashes. Node backends are opaque to the network.
- [Governance](https://docs.decdn.org/protocol/governance.md): Operator governance weighted by delivered bytes, with safety bounds and a sunsetted emergency multisig.
- [Network topology](https://docs.decdn.org/protocol/network.md): Flat peer mesh. Gossip for node discovery; DHT for content discovery; probing for availability confirmation.
- [Payments](https://docs.decdn.org/protocol/payments.md): Off-chain USDC payment channels. Market-driven rates within governance-set bounds.
- [Privacy analysis](https://docs.decdn.org/protocol/privacy.md): A consolidated privacy surface inventory, four-tier adversary model, and mitigation roadmap.
- [Reputation](https://docs.decdn.org/protocol/reputation.md): Interaction-weighted scoring with gossip propagation.
- [Slashing & on-chain verification](https://docs.decdn.org/protocol/slashing.md): Three slashable offenses with on-chain evidence paths, synchronous on-chain adjudication, and a post-slash operator appeal.
- [Content takedown](https://docs.decdn.org/protocol/takedown.md): Governance-controlled on-chain hash blacklist with regional bodies and an emergency fast-path.

## OpenAPI Specs

- [openapi](https://docs.decdn.org/api-reference/openapi.json)