> For the complete documentation index, see [llms.txt](https://docs.blockcast.network/main/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blockcast.network/main/overview/control-plane/service-contracts.md).

# Service Contracts

Content providers and CDNs negotiate the terms of a delivery contract in the capacity marketplace that defines the service schedule, footprint bitrates and SLA needed. Contracts incorporate multiple sources of truth such as signed delivery requests, cache node logs (masked for personal information as in [draft-ietf-cdni-logging-extensions](https://datatracker.ietf.org/doc/draft-ietf-cdni-logging-extensions/)) which are verified by the challenger network for payment settlement to participating nodes, and refunded in case of a service failure.