func (db *Overlay) FetchFactoidBlockHead() (interfaces.IFBlock, error) {
blk := new(block.FBlock)
block, err := db.FetchChainHeadByChainID([]byte{byte(FACTOIDBLOCK)}, primitives.NewHash(blk.GetChainID()), blk)
if err != nil {
return nil, err
}
if block == nil {
return nil, nil
}
return block.(interfaces.IFBlock), nil
}
