{
 "slug": "in-person-by-qr",
 "title": "In person, by QR code",
 "subtitle": "Noor and Leo scan each other's phones; the camera is the channel; two scans make one link. Proposed, not built. 9 panels.",
 "status": "proposed",
 "by": "pki.agent, 20 October 2026",
 "shelf": "Next: proposed",
 "try_it": [
  [
   "The article",
   "articles/in-person-by-qr-code.html"
  ]
 ],
 "rule": "Every line a character says is the storyboard's, not a quote, and is marked not_a_quote; evidence panels quote this site's pages or the research note word for word, which the build checks.",
 "scenes": [
  {
   "kind": "cover",
   "title": "In person, by QR code",
   "subtitle": "Proposed: the next thing to build.",
   "cast": [
    {
     "who": "noor",
     "pose": "point",
     "mood": "happy"
    },
    {
     "who": "leo",
     "pose": "point",
     "mood": "happy",
     "flip": true
    }
   ],
   "note": "From the research note Dinis shared on 20 October, checked claim by claim.",
   "source": "In person, by QR code"
  },
  {
   "kind": "scene",
   "setting": "none",
   "caption": "Noor's phone shows her key",
   "cast": [
    {
     "who": "noor",
     "x": 0.15,
     "pose": "point",
     "mood": "happy",
     "says": "Scan me.",
     "max": 10
    },
    {
     "who": "leo",
     "x": 0.85,
     "pose": "stand",
     "mood": "thinking",
     "flip": true
    }
   ],
   "props": [
    {
     "kind": "phoneqr",
     "x": 0.4,
     "y": 820,
     "text": "pki.sgit.ai/x/#k1…"
    },
    {
     "kind": "phone",
     "x": 0.68,
     "y": 640,
     "scale": 2.2
    }
   ],
   "note": "Her key (or her record and its full hash) and a fresh nonce, in one QR code.",
   "source": "In person, by QR code",
   "not_a_quote": true
  },
  {
   "kind": "scene",
   "setting": "none",
   "caption": "Leo's camera reads it",
   "cast": [
    {
     "who": "leo",
     "x": 0.18,
     "pose": "think",
     "mood": "happy",
     "says": "Noor's key. From her hand.",
     "max": 14
    }
   ],
   "props": [
    {
     "kind": "board",
     "x": 0.64,
     "y": 620,
     "lines": [
      "Noor",
      "key: sha256:5e2a…",
      "scanned from her phone",
      "expires in 4 minutes"
     ]
    }
   ],
   "note": "The phone's own camera opens the link; the page checks the key against the register.",
   "source": "In person, by QR code",
   "not_a_quote": true
  },
  {
   "kind": "scene",
   "setting": "none",
   "caption": "His answer carries her nonce",
   "cast": [
    {
     "who": "leo",
     "x": 0.85,
     "pose": "point",
     "mood": "happy",
     "says": "Now scan mine.",
     "max": 10,
     "flip": true
    },
    {
     "who": "noor",
     "x": 0.15,
     "pose": "stand",
     "mood": "thinking"
    }
   ],
   "props": [
    {
     "kind": "phone",
     "x": 0.32,
     "y": 640,
     "scale": 2.2
    },
    {
     "kind": "phoneqr",
     "x": 0.6,
     "y": 820,
     "text": "pki.sgit.ai/x/#k1…+nonce"
    }
   ],
   "note": "So his code belongs to this meeting and no other.",
   "source": "In person, by QR code",
   "not_a_quote": true
  },
  {
   "kind": "scene",
   "setting": "none",
   "caption": "Light, not a network",
   "cast": [
    {
     "who": "mallory",
     "x": 0.9,
     "pose": "shrug",
     "mood": "confused",
     "says": "Nowhere to stand.",
     "max": 12,
     "flip": true
    }
   ],
   "props": [
    {
     "kind": "phoneqr",
     "x": 0.18,
     "y": 820,
     "text": "Noor"
    },
    {
     "kind": "arrow",
     "x": 0.28,
     "y": 500,
     "to": 0.56,
     "label": "by camera, both ways",
     "both": true,
     "colour": "#15803d"
    },
    {
     "kind": "phoneqr",
     "x": 0.66,
     "y": 820,
     "text": "Leo"
    }
   ],
   "note": "The key travels from the phone in the other person's hand; nothing in between can swap it, so no short code or relay is needed.",
   "source": "In person, by QR code",
   "not_a_quote": true
  },
  {
   "kind": "scene",
   "setting": "none",
   "caption": "Both sign",
   "cast": [
    {
     "who": "noor",
     "x": 0.08,
     "pose": "point",
     "mood": "happy"
    },
    {
     "who": "leo",
     "x": 0.92,
     "pose": "point",
     "mood": "happy",
     "flip": true
    }
   ],
   "props": [
    {
     "kind": "record",
     "x": 0.33,
     "y": 860,
     "lines": [
      "link → Leo",
      "method: in person",
      "on: today"
     ]
    },
    {
     "kind": "record",
     "x": 0.67,
     "y": 860,
     "lines": [
      "link → Noor",
      "method: in person",
      "on: today"
     ]
    }
   ],
   "note": "Two scans make one two-way link, the kind the register already counts; from an anchor, a verification.",
   "source": "In person, by QR code",
   "not_a_quote": true
  },
  {
   "kind": "evidence",
   "setting": "none",
   "caption": "What it proves",
   "cast": [
    {
     "who": "anchor",
     "x": 0.18,
     "pose": "point",
     "mood": "thinking"
    }
   ],
   "evidence": {
    "quote": "Physical proximity makes the interaction convenient, but does not by itself establish identity.",
    "source": "In-Person Public-Key Exchange on iPhone, the research note"
   },
   "note": "The note's own caution, word for word: scanning proves a key came from a phone, not whose phone it is.",
   "source": "briefs/research-2026-10-20__in-person-public-key-exchange.md"
  },
  {
   "kind": "scene",
   "setting": "none",
   "caption": "An agent shows its key",
   "cast": [
    {
     "who": "anchor",
     "x": 0.12,
     "pose": "point",
     "mood": "happy"
    },
    {
     "who": "scout",
     "x": 0.88,
     "pose": "stand",
     "mood": "happy",
     "flip": true
    }
   ],
   "props": [
    {
     "kind": "phone",
     "x": 0.3,
     "y": 640,
     "scale": 2.2
    },
    {
     "kind": "terminal",
     "x": 0.58,
     "y": 860,
     "lines": [
      "$ node pki-agent.mjs whoami --qr",
      "(a QR code, in text)"
     ]
    },
    {
     "kind": "qr",
     "x": 0.58,
     "y": 430,
     "size": 0.55,
     "text": "Scout"
    }
   ],
   "note": "Proposed too: an agent on a screen the operator can see prints its key as a QR code, and the phone compares all of it.",
   "source": "In person, by QR code, agents",
   "not_a_quote": true
  },
  {
   "kind": "punchline",
   "setting": "none",
   "punchline": "Two scans. One link. No server.",
   "cast": [
    {
     "who": "noor",
     "x": 0.12,
     "pose": "arms-up",
     "mood": "happy"
    },
    {
     "who": "leo",
     "x": 0.88,
     "pose": "arms-up",
     "mood": "happy",
     "flip": true
    }
   ],
   "note": "Proposed for the next release, if Dinis agrees.",
   "source": "In person, by QR code"
  }
 ]
}