← the ledger
Watch it decide · Ledger #151

daily-brief · MarketData+BriefComposer

held· conf ▱▱▱▱▱ 0.00· JUL 28, 2026, 9:01 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 15951 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": "2026-07-27",
        "name": "FRED · 10-Year Treasury",
        "value": 4.65,
        "seriesId": "DGS10"
      },
      {
        "url": "https://fred.stlouisfed.org/series/DGS2",
        "asOf": "2026-07-27",
        "name": "FRED · 2-Year Treasury",
        "value": 4.31,
        "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": "2026-07-27",
        "name": "FRED · S&P 500",
        "value": 7413.18,
        "seriesId": "SP500"
      }
    ],
    "readings": [
      {
        "asOf": "2026-07-23",
        "unit": "percent",
        "label": "30-Year Fixed Mortgage",
        "value": 6.58,
        "seriesId": "MORTGAGE30US"
      },
      {
        "asOf": "2026-07-27",
        "unit": "percent",
        "label": "10-Year Treasury",
        "value": 4.65,
        "seriesId": "DGS10"
      },
      {
        "asOf": "2026-07-27",
        "unit": "percent",
        "label": "2-Year Treasury",
        "value": 4.31,
        "seriesId": "DGS2"
      },
      {
        "asOf": "2026-06-01",
        "unit": "percent",
        "label": "Fed Funds Rate",
        "value": 3.63,
        "seriesId": "FEDFUNDS"
      },
      {
        "asOf": "2026-07-27",
        "unit": "index",
        "label": "S&P 500",
        "value": 7413.18,
        "seriesId": "SP500"
      }
    ]
  },
  "composed": {
    "spec": {
      "root": {
        "kind": "Stack",
        "children": [
          {
            "cols": 3,
            "kind": "Grid",
            "children": [
              {
                "kind": "Stat",
                "label": "30-Year Fixed Mortgage",
                "value": "6.58%",
                "caption": "The 30-year mortgage at 6.58% remains sticky; no material move from recent readings."
              },
              {
                "kind": "Stat",
                "label": "10-Year Treasury",
                "value": "4.65%",
                "caption": "The 10-year at 4.65% anchors the long end as shorter duration rallies."
              },
              {
                "kind": "Stat",
                "label": "2-Year Treasury",
                "value": "4.31%",
                "caption": "The 2-year at 4.31% continues to compress the front of the curve."
              },
              {
                "kind": "Stat",
                "label": "Fed Funds Rate",
                "value": "3.63%",
                "caption": "Fed funds at 3.63% (last June reading) sits well below current mortgage rates, underscoring the spread barrier."
              },
              {
                "kind": "Stat",
                "label": "S&P 500",
                "value": "7,413.18",
                "caption": "Equities at 7,413 show no sign of the volatility shock that might spark a demand-side rate spike."
              }
            ]
          },
          {
            "kind": "Text",
            "text": "What it means for your shop",
            "emphasis": "mono"
          },
          {
            "kind": "Callout",
            "text": "Refi incentive stays suppressed—the mortgage rate sits 193 basis points above the 2-year, making cash-out and rate-and-term origination both difficult. Servicers face low prepay risk, but origination volume remains capped by the wide primary-secondary spread.",
            "tone": "info"
          }
        ]
      },
      "title": "markets & rates"
    },
    "label": "autonomous · AI-generated",
    "usage": {
      "promptTokens": 1790,
      "completionTokens": 324
    },
    "summary": "The 30-year fixed mortgage remained elevated at 6.58% while the 10-2 spread widened to 34 basis points, signaling persistent refinance headwinds.",
    "headline": "Mortgage Rate Holds Above 6.5% as Treasury Curve Steepens",
    "disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
  }
}
05

Proof — the hash-chained record

seq #151
row_hash 5a8ff2cf95381cc6454932b11a7c347a45143e8e225bad9d4faa443c57212b2e
prev_hash ce0db9a193a818edfa469bc50aa95f4f89d8638b97201732fcb831a621f92704

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.