The concept itself is not new, with common law jurisdictions having recognized telegraph signatures as far back as the mid-19th century and faxed signatures since the 1980s. From Wikipedia
Crane Federal Credit Union Routing Number. 283977688 routing number is a 9-digit number designed and assigned to Crane Federal Credit Union by The American Bankers Association (ABA) to identify the financial institution upon which a payment was drawn.
ROUTING NUMBER - 255077833 - NASA FEDERAL CREDIT UNION. The code indicating the ABA number to be used to route or send ACH items to the RFI. 0 = Institution is a Federal Reserve Bank. 1 = Send items to customer routing number. 2 = Send items to customer using new routing number field.