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Watch it decide · Ledger #103

daily-brief · MarketData+BriefComposer

published· conf ▰▰▰▰▱ 0.83· JUL 20, 2026, 5:23 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 5110 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": "2026-07-16",
        "name": "FRED · 30-Year Fixed Mortgage",
        "value": 6.55,
        "seriesId": "MORTGAGE30US"
      },
      {
        "url": "https://fred.stlouisfed.org/series/DGS10",
        "asOf": "2026-07-16",
        "name": "FRED · 10-Year Treasury",
        "value": 4.57,
        "seriesId": "DGS10"
      },
      {
        "url": "https://fred.stlouisfed.org/series/DGS2",
        "asOf": "2026-07-16",
        "name": "FRED · 2-Year Treasury",
        "value": 4.16,
        "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": "2026-07-17",
        "name": "FRED · S&P 500",
        "value": 7457.69,
        "seriesId": "SP500"
      }
    ],
    "readings": [
      {
        "asOf": "2026-07-16",
        "unit": "percent",
        "label": "30-Year Fixed Mortgage",
        "value": 6.55,
        "seriesId": "MORTGAGE30US"
      },
      {
        "asOf": "2026-07-16",
        "unit": "percent",
        "label": "10-Year Treasury",
        "value": 4.57,
        "seriesId": "DGS10"
      },
      {
        "asOf": "2026-07-16",
        "unit": "percent",
        "label": "2-Year Treasury",
        "value": 4.16,
        "seriesId": "DGS2"
      },
      {
        "asOf": "2026-06-01",
        "unit": "percent",
        "label": "Fed Funds Rate",
        "value": 3.63,
        "seriesId": "FEDFUNDS"
      },
      {
        "asOf": "2026-07-17",
        "unit": "index",
        "label": "S&P 500",
        "value": 7457.69,
        "seriesId": "SP500"
      }
    ]
  },
  "briefId": 74,
  "composed": {
    "spec": {
      "root": {
        "kind": "Stack",
        "children": [
          {
            "cols": 3,
            "kind": "Grid",
            "children": [
              {
                "kind": "Stat",
                "label": "30-Year Fixed Mortgage",
                "value": "6.55%",
                "caption": "30-year fixed mortgage rate unchanged at 6.55%, maintaining the floor for new origination pull-through."
              },
              {
                "kind": "Stat",
                "label": "10-Year Treasury",
                "value": "4.57%",
                "caption": "10-year Treasury at 4.57%, lagging the 2-year's decline and keeping the curve inverted at the long end."
              },
              {
                "kind": "Stat",
                "label": "2-Year Treasury",
                "value": "4.16%",
                "caption": "2-year yields 4.16%, only 41 bp below the 10-year—no steepening relief in sight for funding spreads."
              },
              {
                "kind": "Stat",
                "label": "Fed Funds Rate",
                "value": "3.63%",
                "caption": "Fed funds anchored at 3.63% as of early June, now stale but consistent with the current yield complex."
              },
              {
                "kind": "Stat",
                "label": "S&P 500",
                "value": "7,457.69",
                "caption": "S&P 500 at 7,457, reflecting the equities backdrop with no acute volatility signaling fresh rate moves."
              }
            ]
          },
          {
            "kind": "Text",
            "text": "What it means for your shop",
            "emphasis": "mono"
          },
          {
            "kind": "Callout",
            "text": "Origination volume remains capped by rate levels, while MSR holders face continued prepay risk if long rates don't rise; the flat curve offers no relief on funding costs for operators levering the front end.",
            "tone": "info"
          }
        ]
      },
      "title": "markets & rates"
    },
    "label": "autonomous · AI-generated",
    "usage": {
      "promptTokens": 1790,
      "completionTokens": 326
    },
    "summary": "The 30-year fixed rate holds at 6.55% while the 10–2 spread compresses to 41 basis points, signaling persistent refinance friction and duration risk.",
    "headline": "Mortgage Rate Steady; Curve Flattens as Long Bonds Lag",
    "disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
  },
  "artifactId": 76
}
05

Proof — the hash-chained record

seq #103
row_hash 57bc187f694e6a40b6e95fd50457d085e1a1243c23b01f523e6dada70757c8c2
prev_hash 7fa8a8fb7b829028bb21ff56626e48adcc1bb49e075783d1272d91ffd5530190

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.