"We welcome you to share in our joy," reads a note - from The Carter Family posted on the microblogging site Tumblr
where baby Blue's pictures are posted. Larger pictures are posted on Jay-Z's lifestyle website Life + Times
The five photos include intimate shots with both Jay-z and Beyonce snuggling the newborn close whose long black hair frames her light brown skin.
Although she is too young to know it, Blue Ivy has had a very productive first month on earth.
For starters, she has made Billboard chart music history by being the youngest person to be credited on the Billboard charts.
that Jay-Z song "Glory" Featuring B.I.C (Blue Ivy Carter) debuted at No. 23 in the Rap song category.
Blue Ivy made her rap debut toward the end of the track - audio of her crying in the background.
In the song
, Jay-Z raps: "The most amazing feeling I feel/Words can't describe the feeling for real." He adds, "Baby, I'll paint the sky blue/My greatest creation was you."
Beyonce gave birth to Blue Ivy Carter on Jan. 7 in New York.