HASHCARE REGISTRY ERRATUM 001
Issued 2026-09-05 by HashCare (a SolvingHealth platform), Boulder, CO.

SUMMARY
Six anchors in the public HashCare registry carry the label "LMN determination"
without the "(synthetic pilot)" marker that the eight anchors issued later the
same evening carry. All six are synthetic pilot cases. None involved a real
patient, real protected health information, or a real clinical determination.

THE SIX ANCHORS
  4c374b3c985fa0ef2450128ec46d174ecb3279e93bd301649cad224953f66f10  2026-09-04T19:00:19Z
  658e6ffb8a5f3f13bad35425463d2297ee695b0e019ae7fc8b73e4139ea824fd  2026-09-04T19:01:26Z
  ea73e91fc44c539179e505800f155a61c3cf06660eb6e93a6e2ca0e246fe5ecc  2026-09-04T19:01:26Z
  849e1f0115424ee36d1d94d1cd39d465984a8e1ad7c31f2d0f27e4cd79444e17  2026-09-04T19:01:28Z
  f4a18bb05cde75b0931162e3e96e3c0bbf68655210d34fe94914a066236d4d68  2026-09-04T19:01:28Z
  f7927dbc04abe28dab70583f378242103b1dea50884cfdd8e728e194fe2d3e2b  2026-09-04T19:01:29Z

ROOT CAUSE
The anchoring code chose the label by testing the case text for the string
"[SYNTHETIC": present, it appended "(synthetic pilot)"; absent, it wrote a bare
"LMN determination". The synthetic marker is written by the intake wizard into
the case's medical_justification field, but the label test read the content and
document_text fields instead. Synthetic cases whose document text did not happen
to repeat the marker were therefore published with a label indistinguishable
from a real patient determination. The default was backwards: it treated "real"
as the fallback in a system that, having no executed Business Associate
Agreement, can only produce synthetic cases.

WHAT DID NOT HAPPEN
No real patient data entered the system. The fingerprints themselves are correct
and verify normally; a hash commits to the document that produced it and that
property is unaffected. No determination was signed by anyone other than the
reviewing physician recorded in it. The registry root and its OpenTimestamps
Bitcoin countersigns are unaffected.

FIX
The label is now unconditional. Until a Business Associate Agreement is executed
and go-live is approved, every determination this system issues is labelled
"(synthetic pilot)" regardless of case text, because every determination it can
issue is in fact synthetic. Marking a determination as real is now a deliberate
configuration change to be made with the BAA, not an inference from prose in a
field. Committed as anchorLabel() in the ClinicalSwipe repository, 2026-09-05.

WHY THIS IS PUBLISHED RATHER THAN CORRECTED
Anchors in this registry are immutable. That is not a limitation to work around;
it is the entire property that makes an anchor worth anything. If we could
quietly rewrite a label after the fact, no label here would mean anything, and
neither would any of the proofs. So the record stands as issued and the
correction is appended in the open, named, dated, and itself anchored.

This document is integrity-protected by its own SHA-256 fingerprint, anchored in
the registry it corrects.