# description
A post — the primary content type in DFOS. Covers short posts, long-form posts, comments, and replies via the format discriminator.

# properties.format.description
Immutable content format — set at creation, never changes. Determines rendering and interaction semantics.

# properties.title.description
Post title. Typically used for long-post format.

# properties.topics.description
Topic names this post belongs to. Stored as names for portability.

# properties.createdByDID.description
DID of the identity that authored this content. Optional — omit when the signer IS the author.