FYI for the numbers. Twins born around same time. their number was
l51-61-10637. O’s document 151-1961-10641.
The padding of 61 to 1961 could easily have occurred due to Y2K issues. The document O released was printed off the computer record. Not so clear is why the twins' cert. is numbered 37 vs. 41 for O (when O was born a day earlier), but these things are probably printed in stacks, and I'd doubt that there was much concern about numbering people sequentially, just giving each a unique number.
Frankly, all my birth certificate questions are now answered except one:
Why has the government and the Obama campaign spent millions of dollars defending against lawsuits asking for the release of the long-form certificate?