This blog post is #4 in our series on Verifiable Digital Credentials (VDCs). Our other posts can be found via Post #1, Post #2, and Post #3. In earlier posts, we discussed how verifiable digital credentials (VDCs) are issued and compared the underlying credential formats (ISO/IEC “mdoc” vs. W3C Verifiable Credentials). In this post, we turn to the other side of the story: presentation; that is, how a holder shows their VDC to a verifier at runtime in both in-person and online contexts. We’ll again explore the mobile driver’s license (mDL) use case, consider the differences between ISO/IEC