Retrieval, provenance, persistent memory, human review, workflow approvals and domain-specific AI products all have substantial prior art. Epistamate's narrower claim is the way these capabilities are composed around changing analytical state rather than around one final generated answer.
The current contract keeps four boundaries explicit: source identity from source representation; preserved evidence from model-facing attention; model proposals from human-authoritative state; and generated outputs from the governed analytical state beneath them. Around those boundaries, unresolved questions, dependencies, staleness and “what changed?” remain first-class workflow state.
This does not imply one universal professional workflow. The emerging design pattern is a stable governance kernel with domain-specific stages, evidence roles, judgement vocabulary, feedback loops and output contracts.