Remove RFC 2119 and RFC 8174 from normative YAML block since the
BCP 14 boilerplate directive adds them automatically, causing
duplicate reference warnings. Rebuild draft with zero warnings.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The ECT workflow identifier (wid) can serve as a correlation point
in SCITT Signed Statements, bridging per-step execution accountability
with end-to-end supply chain transparency.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>