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Watch it decide · Ledger #229

daily-brief · MarketData+BriefComposer

published· conf ▰▰▰▰▱ 0.83· AUG 10, 2026, 4:00 PM· anthropic/claude-haiku-4.5· constitution v5

01

Inputs — what it was given

{}
02

Sources read — 5 cited

03

The gate — deterministic verdict

Decision: published · computed in 23023 ms

5/5 series, all sourced and fresh.

04

Outputs — what it produced

{
  "gate": {
    "pass": true,
    "reason": "5/5 series, all sourced and fresh.",
    "confidence": 0.83
  },
  "market": {
    "sources": [
      {
        "url": "https://fred.stlouisfed.org/series/MORTGAGE30US",
        "asOf": "2026-08-06",
        "name": "FRED · 30-Year Fixed Mortgage",
        "value": 6.69,
        "seriesId": "MORTGAGE30US"
      },
      {
        "url": "https://fred.stlouisfed.org/series/DGS10",
        "asOf": "2026-08-06",
        "name": "FRED · 10-Year Treasury",
        "value": 4.69,
        "seriesId": "DGS10"
      },
      {
        "url": "https://fred.stlouisfed.org/series/DGS2",
        "asOf": "2026-08-06",
        "name": "FRED · 2-Year Treasury",
        "value": 4.25,
        "seriesId": "DGS2"
      },
      {
        "url": "https://fred.stlouisfed.org/series/FEDFUNDS",
        "asOf": "2026-07-01",
        "name": "FRED · Fed Funds Rate",
        "value": 3.63,
        "seriesId": "FEDFUNDS"
      },
      {
        "url": "https://fred.stlouisfed.org/series/SP500",
        "asOf": "2026-08-07",
        "name": "FRED · S&P 500",
        "value": 7757.64,
        "seriesId": "SP500"
      }
    ],
    "readings": [
      {
        "asOf": "2026-08-06",
        "unit": "percent",
        "label": "30-Year Fixed Mortgage",
        "value": 6.69,
        "prevAsOf": "2026-07-30",
        "seriesId": "MORTGAGE30US",
        "prevValue": 6.66
      },
      {
        "asOf": "2026-08-06",
        "unit": "percent",
        "label": "10-Year Treasury",
        "value": 4.69,
        "prevAsOf": "2026-08-05",
        "seriesId": "DGS10",
        "prevValue": 4.63
      },
      {
        "asOf": "2026-08-06",
        "unit": "percent",
        "label": "2-Year Treasury",
        "value": 4.25,
        "prevAsOf": "2026-08-05",
        "seriesId": "DGS2",
        "prevValue": 4.18
      },
      {
        "asOf": "2026-07-01",
        "unit": "percent",
        "label": "Fed Funds Rate",
        "value": 3.63,
        "prevAsOf": "2026-06-01",
        "seriesId": "FEDFUNDS",
        "prevValue": 3.63
      },
      {
        "asOf": "2026-08-07",
        "unit": "index",
        "label": "S&P 500",
        "value": 7757.64,
        "prevAsOf": "2026-08-06",
        "seriesId": "SP500",
        "prevValue": 7709.96
      }
    ]
  },
  "briefId": 116,
  "composed": {
    "spec": {
      "root": {
        "kind": "Stack",
        "children": [
          {
            "cols": 3,
            "kind": "Grid",
            "children": [
              {
                "kind": "Stat",
                "label": "30-Year Fixed Mortgage",
                "value": "6.69%",
                "caption": "30-year fixed mortgage rose 3 bps to 6.69%, holding 200 bps over the 10-year Treasury."
              },
              {
                "kind": "Stat",
                "label": "10-Year Treasury",
                "value": "4.69%",
                "caption": "10-year Treasury climbed 6 bps to 4.69%, outpacing the 2-year's 7 bps rise and tightening the curve."
              },
              {
                "kind": "Stat",
                "label": "2-Year Treasury",
                "value": "4.25%",
                "caption": "2-year Treasury moved up 7 bps to 4.25%, the sharpest one-day move among the benchmarks."
              },
              {
                "kind": "Stat",
                "label": "Fed Funds Rate",
                "value": "3.63%",
                "caption": "Fed Funds Rate remained anchored at 3.63%, unchanged from July 1."
              },
              {
                "kind": "Stat",
                "label": "S&P 500",
                "value": "7,757.64",
                "caption": "S&P 500 closed at 7,757.64, extending the equity backdrop for risk appetite."
              }
            ]
          },
          {
            "kind": "Text",
            "text": "What it means for your shop",
            "emphasis": "mono"
          },
          {
            "kind": "Callout",
            "text": "The persistent 200 bps mortgage-to-Treasury cushion and near-flat curve argue for stable origination spreads and modest refi incentive through near-term rate environment; watch whether the 10–2 stays compressed if the Fed holds rates steady.",
            "tone": "info"
          }
        ]
      },
      "title": "markets & rates"
    },
    "label": "autonomous · AI-generated",
    "usage": {
      "promptTokens": 1990,
      "completionTokens": 333
    },
    "summary": "The 10–2 curve flattened to 44 bps while the 30-year fixed mortgage stayed 200 bps wide of the 10-year Treasury.",
    "headline": "Mortgage spreads hold firm as short rates tick up faster than long",
    "disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
  },
  "artifactId": 118
}
05

Proof — the hash-chained record

seq #229
row_hash 8d9d195fd5ec53d2806d847a4a1388a818185825d4b0ba5e067c7eb61c2e82f2
prev_hash a16740fadc86e5dc64b7774e8a15e91b64b80f1dfc2ba86b7545d9e7328eb44f

This exact row, with its canonical preimage, is public at /api/ledger/export. Recompute its hash with the standalone verifier — it shares no code with this site. The chain head is timestamped into Bitcoin.

Evidence or it doesn't ship.