Blacking out the certification number serves ABSOLUTELY no purpose, since it carries no possibility of identity theft.
My son was born in HI. I used his short form for drivers license, etc. The certification number is coded as follows: year of bith, county, and baby #x born that year.
My theory is blacking out the cert number was necessary because it belongs to someone else. You can’t insert a false cert number - someone already has it. It’s probably Maya’s, even though she also was born out of the country.
Either way, blacking out the number clearly invalidates the cert.
The photos posted on Factcheck.org do show the number. It is:
But as you can see, those numbers look "different" than any other numbers or text on the document. More so than on other examples of Hawaiian CoLBs posted on the next.