Watch it decide · Ledger #234
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· OCT 4, 2026, 4:00 PM· anthropic/claude-haiku-4.5· constitution v5
01
Inputs — what it was given
{}02
Sources read — 5 cited
- FRED · 30-Year Fixed Mortgage — 7.28 · 2026-10-01
- FRED · 10-Year Treasury — 5.24 · 2026-10-01
- FRED · 2-Year Treasury — 4.78 · 2026-10-01
- FRED · Fed Funds Rate — 3.75 · 2026-09-01
- FRED · S&P 500 — 7722.72 · 2026-10-02
03
The gate — deterministic verdict
Decision: published · computed in 12538 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": 0.92
},
"market": {
"sources": [
{
"url": "https://fred.stlouisfed.org/series/MORTGAGE30US",
"asOf": "2026-10-01",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 7.28,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-10-01",
"name": "FRED · 10-Year Treasury",
"value": 5.24,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-10-01",
"name": "FRED · 2-Year Treasury",
"value": 4.78,
"seriesId": "DGS2"
},
{
"url": "https://fred.stlouisfed.org/series/FEDFUNDS",
"asOf": "2026-09-01",
"name": "FRED · Fed Funds Rate",
"value": 3.75,
"seriesId": "FEDFUNDS"
},
{
"url": "https://fred.stlouisfed.org/series/SP500",
"asOf": "2026-10-02",
"name": "FRED · S&P 500",
"value": 7722.72,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 7.28,
"prevAsOf": "2026-09-24",
"seriesId": "MORTGAGE30US",
"prevValue": 7.03
},
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "10-Year Treasury",
"value": 5.24,
"prevAsOf": "2026-09-30",
"seriesId": "DGS10",
"prevValue": 5.29
},
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.78,
"prevAsOf": "2026-09-30",
"seriesId": "DGS2",
"prevValue": 4.88
},
{
"asOf": "2026-09-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.75,
"prevAsOf": "2026-08-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-10-02",
"unit": "index",
"label": "S&P 500",
"value": 7722.72,
"prevAsOf": "2026-10-01",
"seriesId": "SP500",
"prevValue": 7666.45
}
]
},
"briefId": 266,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "7.28%",
"caption": "30-year fixed jumped to 7.28%, up 25 bps in one day—the sharpest single-day move in the validated window, erasing any recent refi incentive."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "5.24%",
"caption": "10-year Treasury fell 5 bps to 5.24%, but the longer mortgage rate rose anyway, widening the 30–10 spread to 204 bps—a sign of mortgage-specific repricing risk."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.78%",
"caption": "2-year Treasury down 10 bps to 4.78%, but the curve spread compressed to just 46 bps, reflecting shallow rate-cut expectations ahead."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.75%",
"caption": "Fed funds rate rose 12 bps to 3.75% in one day, signaling tighter near-term liquidity and lifting the floor for all borrowing costs."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,722.72",
"caption": "S&P 500 at 7,722.72 as of Oct. 2—stable backdrop, but not a driver of today's mortgage repricing."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "A 25 bps spike in mortgage rates in a single day kills any refi momentum and locks borrowers into higher servicing yield for existing pools; the flat 46 bps curve spread hints at terminal-rate anxiety, keeping origination volumes pinched and hedging costs elevated for new production.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2064,
"completionTokens": 422
},
"summary": "The 30-year fixed hit 7.28% on a sharp one-day move higher while the 10–2 curve flattened to just 46 bps, signaling mixed rate expectations and persistent origination headwinds.",
"headline": "Mortgage rates jump 25 bps as Treasury curve steepens; refi appeal evaporates",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 268
}05
Proof — the hash-chained record
seq #234
row_hash 89eec91c58e36075899763255615924d78176d215b494f01a5a461fcf57e776c
prev_hash 764c92a4ff064c7e8dc50dfeae03b25c8602638e6cb985dee66f328102845811
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.