Dov Lieber, TIMES OF ISRAEL
"Since Israel captured East Jerusalem in 1967, it has formally offered residents living in that area the option to apply for Israeli citizenship. Until around a decade ago, very few did, as the vast majority identified, and still do identify, as Palestinian. Recent years, however, have seen a surge in the number of Palestinians seeking Israeli citizenship. But Israel, which in the decade from 2003 to 2013 denied or delayed about half of the citizenship applications by East Jerusalemites, has more recently been failing to accept almost all of them, The Times of Israel has established..."
"Adi Lustigman, an independent Israeli attorney who has worked extensively with East Jerusalemites seeking citizenship, said proving center of life includes (but is not limited to): producing three years of water, electricity and municipal tax bills, bank slips, confirmation by social security offices and letters from employers, and if one has children, their vaccination records."