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

# Welcome

- [Introduction](https://docs.thehemera.com/welcome/readme.md): Learn about Hemera Protocol, the programmable semantic data layer, powered by the first Account-centric Indexing protocol.
- [Quick Start](https://docs.thehemera.com/welcome/quick-start.md)
- [Account Centric Indexing Protocol](https://docs.thehemera.com/welcome/account-centric-indexing-protocol.md)
- [What is Account-Centric Indexing?](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/what-is-account-centric-indexing.md)
- [Why "account-centric" indexing?](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/why-account-centric-indexing.md): Retrieving and computing semantics out of crypto data is repetitive, complicated and expensive. Hemera Protocol abstracts away the complexity and makes the task simple.
- [The advantages of Account-Centric Indexing](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-advantages-of-account-centric-indexing.md)
- [What's next for account-centric indexing?](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/whats-next-for-account-centric-indexing.md): Account-centric indexing is highly modular, and evolves with on-chain diversity
- [Why create a new protocol here?](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/why-create-a-new-protocol-here.md)
- [The Hemera Network](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network.md): Hemera Protocol builds a decentralized, omni-chain covering, modular indexing protocol powering open AI innovation.
- [Network Roles](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/network-roles.md)
- [Indexers](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/indexers.md)
- [Validators](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/validators.md)
- [Proprietary models & knowledge](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/proprietary-models-and-knowledge.md): AI scientists and domain experts can contribute to Hemera Network through attributable proprietary models and knowledges
- [Proprietary data and labels](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/proprietary-data-and-labels.md)
- [Smart Contracts](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/smart-contracts.md)
- [Key roadmap items](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/key-roadmap-items.md)
- [Supported blockchains](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/the-hemera-network/supported-blockchains.md)
- [Example Hemera use cases](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/example-hemera-use-cases.md)
- [SocialScan Explorers](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/example-hemera-use-cases/socialscan-explorers.md)
- [Anti-sybil UML algorithm](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/example-hemera-use-cases/anti-sybil-uml-algorithm.md)
- [Ethereum long term DA](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/example-hemera-use-cases/ethereum-long-term-da.md)
- [EVM chain history preservation](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/example-hemera-use-cases/evm-chain-history-preservation.md)
- [Ecosystem AI Agents](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/example-hemera-use-cases/ecosystem-ai-agents.md): Our vision for future consumer-facing web3 UX
- [User-defined AI Agents](https://docs.thehemera.com/welcome/account-centric-indexing-protocol/example-hemera-use-cases/user-defined-ai-agents.md)