Watch it decide · Ledger #220
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· OCT 1, 2026, 9:00 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 — 5.29 · 2026-09-30
- FRED · 2-Year Treasury — 4.88 · 2026-09-30
- FRED · Fed Funds Rate — 3.75 · 2026-09-01
- FRED · S&P 500 — 7651.54 · 2026-09-30
03
The gate — deterministic verdict
Decision: published · computed in 13327 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": "2026-09-30",
"name": "FRED · 10-Year Treasury",
"value": 5.29,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-09-30",
"name": "FRED · 2-Year Treasury",
"value": 4.88,
"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": "2026-09-30",
"name": "FRED · S&P 500",
"value": 7651.54,
"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": "2026-09-30",
"unit": "percent",
"label": "10-Year Treasury",
"value": 5.29,
"prevAsOf": "2026-09-29",
"seriesId": "DGS10",
"prevValue": 5.26
},
{
"asOf": "2026-09-30",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.88,
"prevAsOf": "2026-09-29",
"seriesId": "DGS2",
"prevValue": 4.89
},
{
"asOf": "2026-09-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.75,
"prevAsOf": "2026-08-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-09-30",
"unit": "index",
"label": "S&P 500",
"value": 7651.54,
"prevAsOf": "2026-09-29",
"seriesId": "SP500",
"prevValue": 7670.84
}
]
},
"briefId": 259,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "7.28%",
"caption": "30-year mortgages jumped to 7.28%, up 25 bps in a single day—the largest single-day move in the validated window."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "5.29%",
"caption": "The 10-year Treasury rose modestly to 5.29%, gaining only 3 bps, leaving the bulk of the mortgage move unexplained by Treasury action alone."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.88%",
"caption": "The 2-year was nearly flat at 4.88%, down 1 bp, as the curve steepened by 41 bps overall."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.75%",
"caption": "Fed Funds rose 12 bps to 3.75%, suggesting hawkish sentiment in near-term rate expectations."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,651.54",
"caption": "The S&P 500 closed at 7,651.54, showing no sharp equity collapse to cushion the rates move."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "Origination volumes face immediate headwind from the 7.28% mortgage rate; the 199 bps mortgage–10Y spread remains wide, signaling continued pricing pressure on loan economics and refi incentive near zero at current rates.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2064,
"completionTokens": 358
},
"summary": "A sharp one-day spike in 30-year mortgages outpaced a modest Treasury move, widening the mortgage-to-10Y spread as the curve steepens.",
"headline": "Mortgage Rates Jump 25 Bps as Treasury Curve Steepens and Fed Funds Rise",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 261
}05
Proof — the hash-chained record
seq #220
row_hash a26e7722c01ddc0b5c59590b3d64cb16fd364cfb7e15454f42e0f33850c373cd
prev_hash 0703db3ff6fd9f31664b1be5e14bb91558720f321b30a28d4c8d09c7b18927d9
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.