code: protected byte[] getHeader() {
          byte[] header = new byte[MINIMUM_PAGE_SIZE + numLVs];
          header[0] = (byte)'O';
          header[1] = (byte)'g';
          header[2] = (byte)'g';
          header[3] = (byte)'S';
  
          header[4] = 0; // Version
  
          byte flags = 0;
          if(isContinue) {
              flags += 1;
          }
          if(isBOS) {
              flags += 2;
          }
          if(isEOS) {
              flags += 4;
          }
          header[5] = flags;
  
          IOUtils.putInt8(header, 6, granulePosition);
          IOUtils.putInt4(header, 14, sid);
          IOUtils.putInt4(header, 18, seqNum);
  
          // Checksum @ 22 left blank for now
  
          header[26] = IOUtils.fromInt(numLVs);
          System.arraycopy(lvs, 0, header, MINIMUM_PAGE_SIZE, numLVs);
  
          return header;
      }
docs: Gets the header, but with a blank CRC field