Claim Sign Authority, Inc.
Two ways are instant: a work email ending in @signauthority.net, or a code you add to signauthority.net. Other proof is checked by hand. The listing does not change until you are approved.
Two ways are instant: a work email ending in @signauthority.net, or a code you add to signauthority.net. Other proof is checked by hand. The listing does not change until you are approved.