> ## Documentation Index
> Fetch the complete documentation index at: https://docs.chainstack.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Arc namespace | Arc

> Arc's custom arc_* JSON-RPC methods — read the execution layer build information and the Malachite consensus commit certificate for a block.

Arc adds a custom `arc_*` namespace on top of the standard Reth surface:

<CardGroup cols={2}>
  <Card title="arc_getCertificate" icon="angle-right" iconType="solid" href="/reference/arc-getcertificate" horizontal />

  <Card title="arc_getVersion" icon="angle-right" iconType="solid" href="/reference/arc-getversion" horizontal />
</CardGroup>