Chase Claypool Autographed 2021 Panini Prizm #392 Trading Card BAS Slab 32379 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a 2021 Panini Prizm #392 trading card that was personally autographed by Chase Claypool. This has been professionally slabbed by Beckett Authentication Services (BAS) and includes a certificate of authenticity from Denver Autographs.