BlockToExecutableData constructs the executableDataV1 structure by filling the fields from the given block.

ExecutableDataToBlock constructs a block from executable data.

ACCEPTED is returned by the engine API in the following calls: - newPayloadV1: if the payload was accepted, but not processed (side chain).

INVALID is returned by the engine API in the following calls: - newPayloadV1: if the payload failed to execute on top of the local chain - forkchoiceUpdateV1: if the new head is unknown, pre-merge, or reorg to it fails.

SYNCING is returned by the engine API in the following calls: - newPayloadV1: if the payload was accepted on top of an active sync - forkchoiceUpdateV1: if the new head was seen before, but not part of the chain.

VALID is returned by the engine API in the following calls: - newPayloadV1: if the payload was already known or was just validated and executed - forkchoiceUpdateV1: if the chain accepted the reorg (might ignore if it's stale).

EngineAPIError is a standardized error message between consensus and execution clients, also containing any custom error message Geth might include.

ExecutableDataV1 structure described at https://github.com/ethereum/execution-apis/tree/main/src/engine/specification.md.

PayloadAttributesV1 structure described at https://github.com/ethereum/execution-apis/pull/74.

PayloadID is an identifier of the payload build process.