# æternity core concepts

- [Introduction](/aeternity-core-concepts/introduction.md)
- [æternity Protocol](/aeternity-core-concepts/protocol.md)
- [æternity Coin](/aeternity-core-concepts/protocol/aeternity-coin.md)
- [Fast Æternity Transaction Engine (FATE VM)](/aeternity-core-concepts/protocol/fast-aeternity-transaction-engine-fate-vm.md): FATE VM: faster, safer code
- [æternity Nodes](/aeternity-core-concepts/protocol/aeternity-nodes.md)
- [Node architecture](/aeternity-core-concepts/protocol/aeternity-nodes/node-architecture.md)
- [Node types](/aeternity-core-concepts/protocol/aeternity-nodes/node-types.md)
- [Node Roles](/aeternity-core-concepts/protocol/aeternity-nodes/node-roles.md)
- [Transactions](/aeternity-core-concepts/protocol/transactions.md)
- [Types of transactions](/aeternity-core-concepts/protocol/transactions/types-of-transactions.md)
- [Transaction Lifecycle](/aeternity-core-concepts/protocol/transactions/transaction-lifecycle.md)
- [Transaction Fees](/aeternity-core-concepts/protocol/transactions/transaction-fees.md)
- [Meta-transactions and Generalized Accounts](/aeternity-core-concepts/protocol/transactions/meta-transactions-and-generalized-accounts.md)
- [State Channel Transactions](/aeternity-core-concepts/protocol/transactions/state-channel-transactions.md)
- [Networks](/aeternity-core-concepts/protocol/networks.md)
- [Consensus Mechanisms](/aeternity-core-concepts/protocol/consensus-mechanisms.md)
- [Next Generation Nakamoto Consensus (Bitcoin-NG)](/aeternity-core-concepts/protocol/consensus-mechanisms/next-generation-nakamoto-consensus-bitcoin-ng.md)
- [Cuckoo Cycle Proof of Work](/aeternity-core-concepts/protocol/consensus-mechanisms/cuckoo-cycle-proof-of-work.md)
- [Hyperchains and Delegated Proof of Stake](/aeternity-core-concepts/protocol/consensus-mechanisms/hyperchains-and-delegated-proof-of-stake.md)
- [Governance and Weighted Coin Voting](/aeternity-core-concepts/protocol/consensus-mechanisms/governance-and-weighted-coin-voting.md)
- [State Channels](/aeternity-core-concepts/protocol/state-channels.md)
- [Oracles](/aeternity-core-concepts/protocol/oracles.md)
- [Aeternity Naming System (AENS)](/aeternity-core-concepts/protocol/images-and-media.md)
- [Hyperchains](/aeternity-core-concepts/hyperchains.md)
- [Hyperchains Whitepaper](/aeternity-core-concepts/hyperchains/hyperchains-whitepaper.md): Current Hyperchains Whitepaper
- [Aeternity Governance](/aeternity-core-concepts/aeternity-governance.md)
- [Aeternity Foundation](/aeternity-core-concepts/aeternity-foundation.md)