{
  "slug": "why-the-receipt-formalized-exchange",
  "version": 1,
  "layout": "flow",
  "nodes": [
    {
      "id": "n1",
      "type": "person",
      "label": "Buyer",
      "x": 58,
      "y": 62,
      "w": 162,
      "h": 162
    },
    {
      "id": "n2",
      "type": "coin",
      "label": "Payment",
      "x": 272,
      "y": 62,
      "w": 82,
      "h": 82
    },
    {
      "id": "n3",
      "type": "store",
      "label": "Seller",
      "x": 272,
      "y": 172,
      "w": 82,
      "h": 82
    },
    {
      "id": "n4",
      "type": "receipt",
      "label": "Receipt",
      "x": 272,
      "y": 290,
      "w": 82,
      "h": 82,
      "detail": "proof of exchange"
    }
  ],
  "relationships": [
    {
      "from": "n1",
      "to": "n2",
      "label": "gives"
    },
    {
      "from": "n2",
      "to": "n3",
      "label": "accepted by"
    },
    {
      "from": "n3",
      "to": "n4",
      "label": "issues"
    }
  ],
  "summary": "A seller accepts payment and issues a receipt; the written record proves the transaction is complete.",
  "mechanism": "written-proof-of-completed-exchange",
  "fig": "FIG. / THE RECORD THAT A TRANSACTION WAS COMPLETE",
  "animation": {
    "style": "assemble",
    "duration": 700,
    "stagger": 60
  },
  "presentation": {
    "style": "vignette",
    "hero": "n4",
    "support": [
      "n1",
      "n2"
    ],
    "icon": "receipt",
    "label": "Receipt",
    "tilt": -5
  },
  "illustration": {
    "concept": "Counter separates seller left from buyer right; goods slide from seller to buyer over counter; receipt paper records exchange; coins return the other way",
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