I’m sharing MEDF (Mutable Expression Description Format), a document format and CLI focused on one narrow problem: making text content verifiable without freezing how it is presented or reused.

MEDF treats text blocks as immutable and verifiable (using RFC 8785 canonicalization and hashes), while explicitly allowing rendering, indexing, and layout to change over time.

It does not attempt to solve trust, identity, correctness, or authority. It only answers: “Is this exactly the same text that was published?”

The reference CLI supports block-level hashing, optional signatures, and offline verification.

Repo: https://github.com/maskin/medf

Feedback and criticism welcome — especially on real-world use cases