Watch it decide · Ledger #99
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· SEP 12, 2026, 11:00 AM· anthropic/claude-haiku-4.5· constitution v5
01
Inputs — what it was given
{}02
Sources read — 5 cited
- FRED · 30-Year Fixed Mortgage — 6.76 · 2026-09-10
- FRED · 10-Year Treasury — 4.95 · 2026-09-10
- FRED · 2-Year Treasury — 4.56 · 2026-09-10
- FRED · Fed Funds Rate — 3.63 · 2026-08-01
- FRED · S&P 500 — 7656.98 · 2026-09-11
03
The gate — deterministic verdict
Decision: published · computed in 12952 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": "2026-09-10",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.76,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-09-10",
"name": "FRED · 10-Year Treasury",
"value": 4.95,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-09-10",
"name": "FRED · 2-Year Treasury",
"value": 4.56,
"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": "2026-09-11",
"name": "FRED · S&P 500",
"value": 7656.98,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-09-10",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.76,
"prevAsOf": "2026-09-03",
"seriesId": "MORTGAGE30US",
"prevValue": 6.71
},
{
"asOf": "2026-09-10",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.95,
"prevAsOf": "2026-09-09",
"seriesId": "DGS10",
"prevValue": 4.83
},
{
"asOf": "2026-09-10",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.56,
"prevAsOf": "2026-09-09",
"seriesId": "DGS2",
"prevValue": 4.43
},
{
"asOf": "2026-08-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-07-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-09-11",
"unit": "index",
"label": "S&P 500",
"value": 7656.98,
"prevAsOf": "2026-09-10",
"seriesId": "SP500",
"prevValue": 7591.7
}
]
},
"briefId": 207,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.76%",
"caption": "30-year fixed mortgage rose 5 bps to 6.76%, trailing a sharper 12 bps jump in the 10-year Treasury."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.95%",
"caption": "10-year Treasury climbed 12 bps to 4.95%, driving the long end of the curve higher."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.56%",
"caption": "2-year Treasury rose 13 bps to 4.56%, staying within a narrowing short-end band."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed funds rate unchanged at 3.63%, offering no near-term relief to borrowing costs."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,656.98"
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "Widening mortgage-to-Treasury spreads signal tightening secondary market conditions and rising servicing/hedging costs; operators should monitor whether rate-lock duration extends as borrowers delay decisions in the face of steeper long-end moves.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2062,
"completionTokens": 316
},
"summary": "The 10Y–2Y curve steepened to 39 bps while the 30Y mortgage–10Y spread expanded to 181 bps, even as the 30-year fixed inched up 5 bps to 6.76%.",
"headline": "Mortgage Spreads Widen as Treasury Curve Steepens; 30-Year Holds Above 6.7%",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 209
}05
Proof — the hash-chained record
seq #99
row_hash d1863291800b04f765c1abd2ce2ab897f5125117520ecf5ab69c386816f0fcc6
prev_hash 9b22c2a6b71c1453234a77452e72d793b7215ff55abc7518020e3941d8651bf7
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.