# Atrum

## Docs

- [Architecture](https://docs.atrum.fun/concepts/architecture.md): The four moving parts and what each is trusted for.
- [Encrypted totals](https://docs.atrum.fun/concepts/encrypted-totals.md): How a contract adds up bets it is never allowed to read.
- [Notes and commitments](https://docs.atrum.fun/concepts/notes-and-commitments.md): How Atrum represents ownership without recording who owns what.
- [How Atrum works](https://docs.atrum.fun/concepts/overview.md): The whole mechanism in one page, before the details.
- [Privacy model](https://docs.atrum.fun/concepts/privacy-model.md): Exactly what Atrum hides, what it does not, and where the limits are.
- [Resolution](https://docs.atrum.fun/concepts/resolution.md): How a market decides its outcome, and why no address can change it.
- [Why parimutuel](https://docs.atrum.fun/concepts/why-parimutuel.md): The constraint that decides Atrum's market design, and why an encrypted order book is impossible.
- [Market lifecycle](https://docs.atrum.fun/guides/lifecycle.md): A market from creation to final payout.
- [Place a bet](https://docs.atrum.fun/guides/place-a-bet.md): What a client does, end to end, to bet privately.
- [Introduction](https://docs.atrum.fun/index.md): A prediction market where nobody can see how much you bet.
- [Contracts](https://docs.atrum.fun/reference/contracts.md): The on-chain surface.
- [Performance](https://docs.atrum.fun/reference/performance.md): What Atrum costs to use, measured on real transactions.