The Thousand Dollar Sharpie: Signature as Compressed Portraiture on U.S. Currency

EA-TDS-01 — CENTER PANEL of The Thousand Dollar Sharpie triptych On March 26, 2026, the U.S. Treasury announced that President Trump's signature would appear on all future paper currency — the first sitting president's signature in 165 years. This deposit argues the signature functions as compressed portraiture: a personal identity claim performing the semiotic work of a portrait through a different medium, exploiting the narrowing of the 1866 Thayer Amendment from 'portrait or likeness' to 'portrait' alone (31 U.S.C. § 5114(b)). Analyzes CC BY-SA as anti-enclosure architecture. Establishes the Sharpie as dual-state semantic object (σ_SH). Maps the scholarly void at the intersection of monetary economics, numismatics, semiotics, and political theory. Advances the TANG from prophylactic to therapeutic governance. The MSMRM hand (5 documents) built the theory of portrait authority. This triptych is the instrument the hand grasps.