This basketball has been personally hand-signed by Larry Bird, Bill Russell, Paul Pierce, Charlie Scott ,John Havlicek, Bob Cousy and Robert Parish. It is officially licensed by the National Basketball Association and comes with an individually numbered, tamper-evident hologram from Fanatics Authentic. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud.