刚拿到EAD卡，分享中间有transfer的timeline

我receipt是LIN开头的，之后被转到了potomac center

02/16  received
03/10  transferred
04/15  card was ordered
04/22  delivered

没错就这4次status update，之前看到别人有transfer之后说received by the local office，有card being mailed，我都没有。Delivered之后email update里说tracking number unavailable, 网站上倒是有tracking number. 总体看来也不是太慢了。

请问收到的EAD卡上写的开始时间和申请表上填的OPT开始时间是一样的吗？