31 CFR 501.602: every person must furnish under oath, whenever OFAC requires, complete information on any act or transaction subject to OFAC's regulations, before, during or after the transaction, including books, contracts, emails, messages and metadata; OFAC may subpoena witnesses and documents; documents must be produced in a usable format agreed with OFAC (its data delivery standards); OFAC may instruct financial institutions to report and pre-notify transactions matching criteria that may involve blocked property.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.