• The hash of a block: SHA-256 twice over the first 80 bytes of its header, written in reverse byte order like every block explorer shows it. ElectrumX sends the merged-mining (AuxPoW) data of a Doichain block after those 80 bytes; it is not part of the hash.

    Parameters

    • headerHex: string

      the header as ElectrumX sends it

    Returns string