> For the complete documentation index, see [llms.txt](https://corpus-core.gitbook.io/iot-colibri-stateless/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://corpus-core.gitbook.io/iot-colibri-stateless/applications-and-colibri-products/use-cases/multi-chain-and-heterogeneous-execution-environments.md).

# Multi-Chain and Heterogeneous Execution Environments

* **Multi-Chain IoT Applications**\
  Devices interact with multiple L1 and L2 systems, selecting domain-specific execution environments while preserving trustless verification. Devices can validate state from different chains depending on application requirements, enabling flexibility without introducing additional trust assumptions.
* **Application-Specific and Domain-Optimized Chains**\
  Specialized execution environments are used to optimize for cost, latency, or regulatory constraints. Stateless verification allows devices to interact with such environments while anchoring correctness in verifiable proofs rather than trusting specialized operators.
* **Long-Lived Infrastructure and Critical Systems**\
  Systems deployed over decades retain verifiability and operational correctness despite backend changes, vendor exits, or evolving protocols. Trustless verification provides a stable security foundation for critical infrastructure where long-term availability and correctness are essential.