eth/v1/beacon/headers/{block_id} RPC method

Ethereum consensus layer Beacon Chain API call that returns block header for a given block ID.

Parameters:

• block_id — string — (required) the block identifier with:
  • head — the canonical head of the chain in the view of the node that you are sending the call to.
  • genesis — the genesis state of the chain.
  • justified — the slot in the current epoch that has received attestations (opens new window) from two thirds of the Ethereum validators.
  • finalized — the previously justified slot that is now in the epoch that is at least immediately previous to the current epoch.
  • slot — the slot number.
  • 0xblockRoot — the root hash of the Beacon Chain block (opens new window).

Returns:

• execution_optimistic — boolean — true if the response references an unverified execution payload. Optimistic information may be invalidated at a later time. If the field is not present, assume the false value.
• data — array — objects with:
  • root — string — the corresponding root.
  • canonical — boolean.
  • header — object — the SignedBeaconBlockHeader (opens new window) object.
  • message — object — the BeaconBlockHeader (opens new window) object.
• slot — string — the slot to which this block corresponds.
• proposer_index — string — the index of the validator in the validator registry.
• parent_root — string — the signing merkle root of the parent BeaconBlock (opens new window).
• state_root — string — the tree hash merkle root of the BeaconState (opens new window) for the BeaconBlock (opens new window).
• body_root — string — the tree hash merkle root of the BeaconBlockBody (opens new window) for the BeaconBlock (opens new window).
• signature — string — the signature.

Example:

curl -X GET https://beacon-nd-123-456-789.p2pify.com/3c6e0b8a9c15224a8228b9a98ca1531d/eth/v1/beacon/headers/head