From Catalog Hauls In $9M to Make DNA-Based Data Storage Commercially Viable:

Catalog DNA vial
Catalog DNA vial

A vial containing DNA with “The Hitchhiker’s Guide to the Galaxy” novel encoded into it, held by Catalog synthetic biologist Sarah Flickinger. Catalog says the DNA is a thin film and is rehydrated with water in this submitted photo, part of the process of retrieving the data.