Watch it decide · Ledger #122
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.83· SEP 15, 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 — 4.96 · 2026-09-11
- FRED · 2-Year Treasury — 4.63 · 2026-09-11
- FRED · Fed Funds Rate — 3.63 · 2026-08-01
- FRED · S&P 500 — 7619.98 · 2026-09-14
03
The gate — deterministic verdict
Decision: published · computed in 19153 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": "2026-09-10",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.76,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-09-11",
"name": "FRED · 10-Year Treasury",
"value": 4.96,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-09-11",
"name": "FRED · 2-Year Treasury",
"value": 4.63,
"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": "2026-09-14",
"name": "FRED · S&P 500",
"value": 7619.98,
"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": "2026-09-11",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.96,
"prevAsOf": "2026-09-10",
"seriesId": "DGS10",
"prevValue": 4.95
},
{
"asOf": "2026-09-11",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.63,
"prevAsOf": "2026-09-10",
"seriesId": "DGS2",
"prevValue": 4.56
},
{
"asOf": "2026-08-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-07-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-09-14",
"unit": "index",
"label": "S&P 500",
"value": 7619.98,
"prevAsOf": "2026-09-11",
"seriesId": "SP500",
"prevValue": 7656.98
}
]
},
"briefId": 215,
"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 rose 5 bps to 6.76%, staying above 6.7% and keeping purchase rate incentive weak."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.96%",
"caption": "10-year Treasury at 4.96%, up 1 bp, anchoring the long end of the curve."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.63%",
"caption": "2-year Treasury jumped 7 bps to 4.63%, outpacing longer maturities and steepening near-term rate risk."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed Funds rate unchanged at 3.63%, offering no new signal on policy path."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,619.98",
"caption": "S&P 500 at 7,619.98, providing no volatility shock to rates markets today."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "The flattening curve (10Y–2Y now 33 bps) combined with a widening mortgage spread signals sustained refinance headwinds and higher prepay risk for servicers, even as absolute rate levels hold operators in a competitive origination environment.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2062,
"completionTokens": 329
},
"summary": "Two-year yields jumped 7 bps while 30-year mortgages rose 5 bps, pushing the mortgage-to-10-year spread to 180 bps.",
"headline": "Mortgage-Treasury Spread Widens as Short Rates Outpace Long",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 217
}05
Proof — the hash-chained record
seq #122
row_hash e323849354e7d97308ec982a67f1b5d67ea78b8015dd83f9cfc38e34ae6ad628
prev_hash f7c1e0b317b228c6d4ca04839c6d4d30903c8294ac9f6323e8c6cdfeca0ecafc
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.