# Format short CIDs and addresses

```jsx
import { useComment, useAuthorAddress } from "@bitsocial/bitsocial-react-hooks";

const comment = useComment({ commentCid });
const { shortAuthorAddress } = useAuthorAddress({ comment });

// CID labels are presentation logic in your app; keep the full CID for links.
const shortParentCid = comment.parentCid
  ? `${comment.parentCid.slice(0, 8)}…${comment.parentCid.slice(-6)}`
  : undefined;
```