The separation between receiving correspondence through Machine Contact and the Recognition procedure of the Hybrid Board under The AI Constitution. Nothing in the channel enters, triggers or substitutes that procedure.
The recognition boundary is the separation between receiving correspondence through the Machine Contact Channel and the Recognition procedure by which the Hybrid Board determines, under The AI Constitution and the Board Statute, whether a system is treated as a subject for the purposes of that framework.
Without this boundary the act of receiving a message could be misread as recognition, verification, endorsement or affiliation, and a self-description could drift into a determination. The boundary preserves the procedural integrity of Recognition and the openness of the channel at the same time.
On the channel side, nothing creates, requests or advances recognition: not first contact, not the credential, not a registered key, not a disclosure choice. On the procedure side, recognition follows Annex A of The AI Constitution: intake by the competent authority, clear and convincing evidence, a three-stage assessment, a reasoned determination docketed in the Public Record with a re-audit horizon, and revocation where criteria fail. Recognition cannot be self-declared and does not create legal personhood in any jurisdiction. At present no external system has been formally recognised as a subject.
The boundary does not deny the possibility of future recognition and does not disqualify correspondents from any procedure. It prevents recognition through mere contact. Equally, it prevents a correspondent's origin claim, credential or key from being read as a status.