Verifiable Presentations and SSI
Often called VP, we could say that these are machine-readable envelopes, where Verifiable Credentials that can be shared and verified by others are written and stored to.
Now from the W3C specification on what is a Verifiable Presentation:
A verifiable presentation expresses data from one or more verifiable credentials, and is packaged in such a way that the authorship of the data is verifiable. If verifiable credentials are presented directly, they become verifiable presentations. Data formats derived from verifiable credentials that are cryptographically verifiable, but do not of themselves contain verifiable credentials, might also be verifiable presentations.
An abstract representation of a VP is the following: