# White paper (/protocol/architecture/white-paper)

import { ExternalLink } from 'lucide-react';

The white paper describes the original design of the Shelby protocol: its architecture,
erasure coding, and the research behind them. Shelby as you use it today, through the S3
API and an access key, is described in [How Shelby stores data](/protocol/architecture/overview).

<Cards>
  <Card title="Shelby white paper (PDF)" href="https://shelby.xyz/whitepaper.pdf" description="English (en-US)" className="relative" external>
    <ExternalLink className="absolute top-4 right-4 size-4 text-fd-muted-foreground" />
  </Card>
</Cards>
