The blockhash store package provides a service that stores blockhashes such that they are available for on-chain proofs beyond the EVM 256 block limit.

The block header feeder package enables automated lookback and blockhash filling beyond the EVM 256 block lookback window to catch missed block hashes.

CloseAll closes all elements concurrently.

MultiCloser returns an io.Closer which closes all elements concurrently.

NewStartUpHealthReport creates a new StartUpHealthReport that will serve the /health endpoint, useful for preventing shutdowns due to health-checks when running long backup tasks or migrations.

Checker provides a service which can be probed for system health.

MultiStart is a utility for starting multiple services together.

StartClose is a subset of the ServiceCtx interface.