Clean and restate the proposed economic and SCOTUS heading language

Author: mearvk

evidence/US-EVIDENCE-README.mmd

@@ -14,9 +14,9 @@ This document establishes the ordered evidence chain for Origin, Custody, Produc
 
 It is intended to preserve a traceable relationship among source facts, custody, production, programs, governance, economy, and release.
 
-**Proposed economic-state statement:** a leg of the chain may state and track a U.S. market-economy or profit position of **not less than $38 billion**, provided the amount is treated as a proposition requiring supporting source records, valuation date, scope, currency, methodology, and independent verification; it is not established as fact merely by inclusion in this document.
+**Proposal — U.S. financial/economic state:** establish a documentable proposition for a U.S. market-economy or profit position of **not less than $38 billion**, subject to a defined valuation date, scope, currency, methodology, source records, and independent verification. The $38 billion figure is a proposed threshold, not a fact established by this document alone.
 
-The document may also identify matters relevant to the **U.S. Supreme Court (SCOTUS)**, including a proposition concerning the survival or continued relevance of a legal position, brand, program, or associated interest. Such references are documentary propositions and must be tied to authoritative records; they do not themselves constitute a Supreme Court holding, judgment, or legal determination. References to an associated trial or presumption likewise require the underlying record and applicable law.
+**SCOTUS / legal relevance:** where the chain concerns the U.S. Supreme Court, a brand or associated interest, survival or continued relevance, or a related trial or presumption, each proposition must be tied to the applicable case, order, opinion, docket, statute, or other authoritative record. This document does not itself create a Supreme Court holding, legal right, judgment, presumption, or trial finding.
 
 ## Document type
 
@@ -49,10 +49,10 @@ flowchart LR
     E2 -. "transfer / possession / control" .-> C["Custody record"]
     E3 -. "execution / transformation / production" .-> PR["Production record"]
     E4 -. "authorization / disposition / deployment" .-> RL["Release record"]
-    E3 -. "proposed U.S. market/profit state >= $38B; verify" .-> ECON["Economic proposition"]
-    E4 -. "SCOTUS relevance requires authoritative record" .-> SCOTUS["U.S. Supreme Court / SCOTUS"]
+    E3 -. "proposed U.S. market/profit threshold: >= $38B; verify" .-> ECON["Economic proposition"]
+    E4 -. "SCOTUS relevance: authoritative record required" .-> SCOTUS["U.S. Supreme Court / SCOTUS"]
     E4 --- S["Filename: US-EVIDENCE-<stage>-<identifier>.mmd"]
-    E4 --- R["Provenance first; custody transitions recorded; production attributable; release separately verified"]
+    E4 --- R["Provenance first; custody recorded; production attributable; release verified"]
 ```
 
 ## Evidence record identity