Watch it decide · Ledger #187
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· SEP 26, 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 — 7.03 · 2026-09-24
- FRED · 10-Year Treasury — 5.18 · 2026-09-24
- FRED · 2-Year Treasury — 4.87 · 2026-09-24
- FRED · Fed Funds Rate — 3.63 · 2026-08-01
- FRED · S&P 500 — 7743.41 · 2026-09-25
03
The gate — deterministic verdict
Decision: published · computed in 14653 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": "2026-09-24",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 7.03,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-09-24",
"name": "FRED · 10-Year Treasury",
"value": 5.18,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-09-24",
"name": "FRED · 2-Year Treasury",
"value": 4.87,
"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": "2026-09-25",
"name": "FRED · S&P 500",
"value": 7743.41,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-09-24",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 7.03,
"prevAsOf": "2026-09-17",
"seriesId": "MORTGAGE30US",
"prevValue": 6.95
},
{
"asOf": "2026-09-24",
"unit": "percent",
"label": "10-Year Treasury",
"value": 5.18,
"prevAsOf": "2026-09-23",
"seriesId": "DGS10",
"prevValue": 5.11
},
{
"asOf": "2026-09-24",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.87,
"prevAsOf": "2026-09-23",
"seriesId": "DGS2",
"prevValue": 4.85
},
{
"asOf": "2026-08-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-07-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-09-25",
"unit": "index",
"label": "S&P 500",
"value": 7743.41,
"prevAsOf": "2026-09-24",
"seriesId": "SP500",
"prevValue": 7704.13
}
]
},
"briefId": 246,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "7.03%",
"caption": "30-year fixed mortgage at 7.03%, up 8 bps in one day; the highest level in this series since spring."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "5.18%",
"caption": "10-year Treasury at 5.18%, up 7 bps; the bulk of recent upward pressure in the yield curve."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.87%",
"caption": "2-year Treasury at 4.87%, up only 2 bps; the curve continues to steepen at the front end."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed Funds Rate unchanged at 3.63%, suggesting no policy move in the interim."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,743.41",
"caption": "S&P 500 at 7,743.41; equities stable amid the rise in Treasury yields."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "With the 30-year mortgage now 185 bps above the 10-year Treasury, refinance incentive continues to erode for borrowers locked in pre-2024 rates; origination appeal tilts further toward purchases in rate-sensitive segments, while MSR duration exposure flattens as prepay risk diminishes.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2062,
"completionTokens": 353
},
"summary": "The 10-year Treasury climbed 7 bps to 5.18%, pulling the 30-year fixed mortgage to 7.03% and expanding the mortgage–10-year spread to 185 bps.",
"headline": "Mortgage spreads widen as 10-year pushes higher; refi window narrows further",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 248
}05
Proof — the hash-chained record
seq #187
row_hash 8608fe33c7f020f17a28457281f3d0b0efdeefeb78ff4b2d10ea08d2e55e464c
prev_hash df9d13dffc78bed32293cb617f5a119ca3936c4c5ec38caa68e2165dea3b7559
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.