> For the complete documentation index, see [llms.txt](https://docs.heima.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.heima.network/core-concepts/heima-layer-1-network.md).

# Heima Layer 1 Network

### Heima Layer 1 Network

Heima Layer 1 is a Substrate-based blockchain that serves as the coordination layer for intents, agents, and cross-chain execution.

It goes beyond settlement, offering a programmable environment purpose-built for:

* High-throughput, low-latency execution (targeting 500ms block time)
* A transparent registry of agents and intent fillers
* Native cross-chain communication via proxy handlers and prebuilt modules

By anchoring every action on-chain, Heima ensures intent execution is fully traceable and verifiable.

#### Substrate-Based Flexibility

Heima leverages Substrate to provide:

* **WASM + EVM compatibility** for flexible execution environments
* **Native governance modules** for treasury, staking, Bounty and agent certification
* **Runtime upgradeability** without hard forks
* **Decentralized schedulers** for intent queueing, retries, and timed execution

#### Built for Auditable Automation

Transparency and verifiability are core to Heima’s design:

* **Unified actor registry** for all agents, fillers, and relayers
* **Omni-account anchoring** links executions to cryptographic identities across chains and off-chain environments
* **Cross-domain traceability** via attestations and signed logs
* **TEE-secured proofs** for off-chain actions involving sensitive data
* **Full intent lifecycle visibility** from submission to final state change

Heima Layer 1 forms a trust-minimized coordination fabric where all executions are verifiable, composable, and interoperable—supporting secure automation across heterogeneous systems.