Chain API

The Chain API subsystem is responsible for providing a single point of access to chain state data via a set of pre-determined queries.


Input: ChainApiMessage

Output: None


On receipt of ChainApiMessage, answer the request and provide the response to the side-channel embedded within the request.

Currently, the following requests are supported:

  • Block hash to number
  • Block hash to header
  • Block weight
  • Finalized block number to hash
  • Last finalized block number
  • Ancestors