A receipt.json file is outputted after each deployment and contains non-sensitive information about the deployment. The main use of a receipt file is to remove an Airnode deployment when no longer needed. See the Airnode Removal documentation for usage and commands.
It also provides the Airnode xpub for the hardened derivation path m/44'/60'/0' that must be announced off-chain in order for sponsors to derive their designated sponsor wallet. This wallet will then be used by the Airnode to fulfill each request made by the requester contracts.
airnodeWallet: address and xpub information
deployment: Airnode configuration and timestamp of deployment
success: specifies whether the deployment was successful or not
A receipt.json file is created for both a AWS or GCP deployment. A receipt is not generated for client deployments (deploying to a Docker container).