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Watch it decide · Ledger #124

daily-brief · MarketData+BriefComposer

held· conf ▱▱▱▱▱ 0.00· JUL 24, 2026, 9:00 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: held · computed in 16835 ms

Brief cites a figure not in the data: 6.5%.

04

Outputs — what it produced

{
  "gate": {
    "pass": false,
    "reason": "Brief cites a figure not in the data: 6.5%.",
    "confidence": 0
  },
  "market": {
    "sources": [
      {
        "url": "https://fred.stlouisfed.org/series/MORTGAGE30US",
        "asOf": "2026-07-23",
        "name": "FRED · 30-Year Fixed Mortgage",
        "value": 6.58,
        "seriesId": "MORTGAGE30US"
      },
      {
        "url": "https://fred.stlouisfed.org/series/DGS10",
        "asOf": "2026-07-23",
        "name": "FRED · 10-Year Treasury",
        "value": 4.71,
        "seriesId": "DGS10"
      },
      {
        "url": "https://fred.stlouisfed.org/series/DGS2",
        "asOf": "2026-07-23",
        "name": "FRED · 2-Year Treasury",
        "value": 4.37,
        "seriesId": "DGS2"
      },
      {
        "url": "https://fred.stlouisfed.org/series/FEDFUNDS",
        "asOf": "2026-06-01",
        "name": "FRED · Fed Funds Rate",
        "value": 3.63,
        "seriesId": "FEDFUNDS"
      },
      {
        "url": "https://fred.stlouisfed.org/series/SP500",
        "asOf": "2026-07-23",
        "name": "FRED · S&P 500",
        "value": 7408.3,
        "seriesId": "SP500"
      }
    ],
    "readings": [
      {
        "asOf": "2026-07-23",
        "unit": "percent",
        "label": "30-Year Fixed Mortgage",
        "value": 6.58,
        "seriesId": "MORTGAGE30US"
      },
      {
        "asOf": "2026-07-23",
        "unit": "percent",
        "label": "10-Year Treasury",
        "value": 4.71,
        "seriesId": "DGS10"
      },
      {
        "asOf": "2026-07-23",
        "unit": "percent",
        "label": "2-Year Treasury",
        "value": 4.37,
        "seriesId": "DGS2"
      },
      {
        "asOf": "2026-06-01",
        "unit": "percent",
        "label": "Fed Funds Rate",
        "value": 3.63,
        "seriesId": "FEDFUNDS"
      },
      {
        "asOf": "2026-07-23",
        "unit": "index",
        "label": "S&P 500",
        "value": 7408.3,
        "seriesId": "SP500"
      }
    ]
  },
  "composed": {
    "spec": {
      "root": {
        "kind": "Stack",
        "children": [
          {
            "cols": 3,
            "kind": "Grid",
            "children": [
              {
                "kind": "Stat",
                "label": "30-Year Fixed Mortgage",
                "value": "6.58%",
                "caption": "30-year fixed at 6.58%, holding the line above 6.5% and keeping purchase demand subdued."
              },
              {
                "kind": "Stat",
                "label": "10-Year Treasury",
                "value": "4.71%",
                "caption": "10-year Treasury at 4.71%, anchoring long-end pricing and leaving little room for mortgage compression."
              },
              {
                "kind": "Stat",
                "label": "2-Year Treasury",
                "value": "4.37%",
                "caption": "2-year at 4.37%, a 34bp spread below the 10-year reflecting modest near-term rate expectations."
              },
              {
                "kind": "Stat",
                "label": "Fed Funds Rate",
                "value": "3.63%",
                "caption": "Fed funds at 3.63% (as of early June), the policy anchor that continues to support the broader rate structure."
              },
              {
                "kind": "Stat",
                "label": "S&P 500",
                "value": "7,408.3",
                "caption": "S&P 500 at 7,408, equity strength offering no relief to rate-sensitive lending demand."
              }
            ]
          },
          {
            "kind": "Text",
            "text": "What it means for your shop",
            "emphasis": "mono"
          },
          {
            "kind": "Callout",
            "text": "Origination volume remains hostage to rate levels that still deter refi activity; servicers should expect prepay risk to stay muted and hedge positioning to favor stability over curve volatility.",
            "tone": "info"
          }
        ]
      },
      "title": "markets & rates"
    },
    "label": "autonomous · AI-generated",
    "usage": {
      "promptTokens": 1790,
      "completionTokens": 324
    },
    "summary": "The 30-year fixed holds above 6.5% while the 10-2 curve sits at 34 basis points, leaving originators facing sustained margin pressure.",
    "headline": "Mortgage Spreads Widen as 10-Year Treasury Stays Firm",
    "disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
  }
}
05

Proof — the hash-chained record

seq #124
row_hash a86b115a6b5939d3ce07412c2459c477c12ecae7100a4399b7690fc6accb3ef7
prev_hash ea897c1535a53a12c07ae5aadd3cb8ffda9f2d09368792858487c09e0c0f5e9c

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.