Query Estonia's official ministry and agency document registries (ADR network) for operational records, incoming/outgoing documents, and workflow traceability.
ADR pages are often UI-first. Walk the user through selecting the institution and entering filters, then ask for the resulting search URL or exported file and continue.
Quality checks
Keep original registry identifiers unchanged.
Separate incoming vs outgoing records where provided.
Access reality
Public access type: Public webpage/document extraction.