https://ar.vogon.today/%d8%a7%d9%84%d8%b9%d9%85%d9%84%d8%a7%d8%aa-%d8%a7%d9%84%d8%b1%d9%82%d9%85%d9%8a%d8%a9/%d8%aa%d8%aa%d8%b9%d8%a7%d9%88%d9%86-bakkt-%d9%85%d8%b9-lightspark-%d9%85%d9%86-david-marcus-%d9%84%d8%ac%d9%84%d8%a8-uma-%d8%a5%d9%84%d9%89-lightning-network/