# Index

All pages in Chainlore.

## Layer 1 blockchains

- [Bitcoin](pages/bitcoin.md): the first cryptocurrency, a proof-of-work
  peer-to-peer electronic cash system.
- [Ethereum](pages/ethereum.md): a proof-of-stake blockchain for
  general-purpose smart contracts.
- [Hyperliquid](pages/hyperliquid.md): a layer 1 blockchain built around
  an onchain order book for perpetual futures and spot trading.

## Layer 2 networks

- [Arbitrum](pages/arbitrum.md): a family of optimistic rollups that
  settle to Ethereum.