> For the complete documentation index, see [llms.txt](https://docs.zetrix.com/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zetrix.com/en/architecture.md).

# ARCHITECTURE

- [Blockchain Layer](https://docs.zetrix.com/en/architecture/blockchain-layer.md)
- [Consensus Mechanism](https://docs.zetrix.com/en/architecture/consensus-mechanism.md)
- [DPos](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos.md)
- [DPOS Lifecycle Flow](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos/dpos-lifecycle-flow.md)
- [Validator State Machine](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos/validator-state-machine.md)
- [Reward Extraction Flow](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos/reward-extraction-flow.md)
- [Heartbeat Accumulation → Reward Eligibility Flow](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos/heartbeat-accumulation-reward-eligibility-flow.md)
- [Contract Methods Reference](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos/contract-methods-reference.md)
- [Cron Schedule Summary](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos/cron-schedule-summary.md)
- [Key Configuration](https://docs.zetrix.com/en/architecture/consensus-mechanism/dpos/key-configuration.md)
- [BFT](https://docs.zetrix.com/en/architecture/consensus-mechanism/bft.md)
- [Node Type](https://docs.zetrix.com/en/architecture/node-type.md)
- [Security](https://docs.zetrix.com/en/architecture/security.md)