{
  "id": "bbg-p0079-web-request-lifecycle-web-request",
  "title": "HTTP Protocol Evolution",
  "chapter": "web-request-lifecycle",
  "batch": "15",
  "rank": 147,
  "sourcePage": 79,
  "sourcePointer": "p. 79",
  "status": "accepted",
  "reviewerStatus": "reviewed",
  "fidelityScore": 0.9,
  "canvas": {
    "width": 960,
    "height": 640
  },
  "fireworksTechGraph": {
    "style": "style-1-flat-icon",
    "diagramType": "flowchart",
    "topologyNotes": [
      "source page render inspected",
      "extracted page text inspected",
      "source page render inspected",
      "preserve HTTP version journey: HTTP/1.0, HTTP/1.1 keep-alive, HTTP/2 multiplexing, HTTP/3 over QUIC/UDP, and performance/security implications",
      "omit source branding, timeline illustration, and copied prose"
    ],
    "publicBoundary": [
      "original vector output",
      "no source pixels",
      "no source mark or long wording"
    ]
  },
  "callouts": [],
  "sourceReview": {
    "conceptAnchors": [
      "concept: HTTP/1.0",
      "concept: HTTP/1.1",
      "concept: HTTP/2",
      "concept: HTTP/3",
      "concept: QUIC over UDP"
    ],
    "labelSource": "curated",
    "semanticStatus": "reviewed"
  },
  "groups": [
    {
      "id": "versions",
      "label": "Protocol versions",
      "x": 58,
      "y": 154,
      "w": 844,
      "h": 172
    }
  ],
  "shapes": [
    {
      "id": "h10",
      "kind": "rect",
      "label": "HTTP/1.0",
      "detail": "basic request",
      "x": 100,
      "y": 202,
      "w": 126,
      "h": 58,
      "tone": "blue"
    },
    {
      "id": "h11",
      "kind": "rect",
      "label": "HTTP/1.1",
      "detail": "keep-alive",
      "x": 280,
      "y": 202,
      "w": 126,
      "h": 58,
      "tone": "green"
    },
    {
      "id": "h2",
      "kind": "rect",
      "label": "HTTP/2",
      "detail": "multiplex",
      "x": 460,
      "y": 202,
      "w": 126,
      "h": 58,
      "tone": "purple"
    },
    {
      "id": "h3",
      "kind": "rect",
      "label": "HTTP/3",
      "detail": "QUIC UDP",
      "x": 640,
      "y": 202,
      "w": 126,
      "h": 58,
      "tone": "orange"
    },
    {
      "id": "fit",
      "kind": "diamond",
      "label": "Evolved for",
      "detail": "latency scale",
      "x": 416,
      "y": 398,
      "w": 132,
      "h": 84,
      "tone": "red"
    }
  ],
  "connectors": [
    {
      "from": "h10",
      "to": "h11",
      "label": "persistent",
      "flow": "main"
    },
    {
      "from": "h11",
      "to": "h2",
      "label": "parallel",
      "flow": "main"
    },
    {
      "from": "h2",
      "to": "h3",
      "label": "QUIC",
      "flow": "main"
    },
    {
      "from": "h2",
      "to": "fit",
      "label": "less blocking",
      "flow": "data"
    },
    {
      "from": "h3",
      "to": "fit",
      "label": "faster setup",
      "flow": "data"
    }
  ]
}