Watch it decide · Ledger #63
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· SEP 6, 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 — 6.71 · 2026-09-03
- FRED · 10-Year Treasury — 4.77 · 2026-09-03
- FRED · 2-Year Treasury — 4.34 · 2026-09-03
- FRED · Fed Funds Rate — 3.63 · 2026-08-01
- FRED · S&P 500 — 7718.6 · 2026-09-04
03
The gate — deterministic verdict
Decision: published · computed in 15841 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": "2026-09-03",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.71,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-09-03",
"name": "FRED · 10-Year Treasury",
"value": 4.77,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-09-03",
"name": "FRED · 2-Year Treasury",
"value": 4.34,
"seriesId": "DGS2"
},
{
"url": "https://fred.stlouisfed.org/series/FEDFUNDS",
"asOf": "2026-08-01",
"name": "FRED · Fed Funds Rate",
"value": 3.63,
"seriesId": "FEDFUNDS"
},
{
"url": "https://fred.stlouisfed.org/series/SP500",
"asOf": "2026-09-04",
"name": "FRED · S&P 500",
"value": 7718.6,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-09-03",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.71,
"prevAsOf": "2026-08-27",
"seriesId": "MORTGAGE30US",
"prevValue": 6.66
},
{
"asOf": "2026-09-03",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.77,
"prevAsOf": "2026-09-02",
"seriesId": "DGS10",
"prevValue": 4.79
},
{
"asOf": "2026-09-03",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.34,
"prevAsOf": "2026-09-02",
"seriesId": "DGS2",
"prevValue": 4.39
},
{
"asOf": "2026-08-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-07-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-09-04",
"unit": "index",
"label": "S&P 500",
"value": 7718.6,
"prevAsOf": "2026-09-03",
"seriesId": "SP500",
"prevValue": 7747.71
}
]
},
"briefId": 193,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.71%",
"caption": "30-year fixed mortgage rose 5 bps to 6.71%, outpacing Treasury moves and widening the mortgage premium."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.77%",
"caption": "10-year Treasury fell 2 bps to 4.77%, a mild rally that did not translate to lower mortgage rates."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.34%",
"caption": "2-year Treasury dropped 5 bps to 4.34%, with the curve flattening to a 43 bps spread."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed Funds Rate held at 3.63%, unchanged from the prior day."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,718.6",
"caption": "S&P 500 closed at 7,718.6, up from the prior day's level."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "A widening mortgage spread signals tighter origination margins and reduced refi incentive as lenders price higher credit/servicing costs; operators face weaker volume tailwinds and modestly elevated prepayment risk if spreads compress.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2062,
"completionTokens": 321
},
"summary": "30-year fixed climbed 5 bps to 6.71% while the 10Y Treasury fell 2 bps, pushing the mortgage–Treasury gap to 194 bps.",
"headline": "Mortgage spread blows out as 10Y rallies; refi headwind deepens",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 195
}05
Proof — the hash-chained record
seq #63
row_hash ed9d34c875f6183cba2ccd1612bf18b8dbd87e97780e7a6c16077ea4561559d7
prev_hash 47c4d04893538533a6a90b8641e5347e9b861e23fc7cdd16805492e7c90f6884
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.