Watch it decide · Ledger #53
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· SEP 4, 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 — 7747.71 · 2026-09-03
03
The gate — deterministic verdict
Decision: published · computed in 19235 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": "2026-09-03",
"name": "FRED · S&P 500",
"value": 7747.71,
"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": "2026-09-03",
"unit": "index",
"label": "S&P 500",
"value": 7747.71,
"prevAsOf": "2026-09-02",
"seriesId": "SP500",
"prevValue": 7666.6
}
]
},
"briefId": 187,
"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%, moving slightly higher as long-dated yields held."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.77%",
"caption": "10-year Treasury eased 2 bps to 4.77%, anchoring the long end while the curve steepened."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.34%",
"caption": "2-year Treasury fell 5 bps to 4.34%, reflecting softer near-term rate expectations."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%"
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,747.71"
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "At 194 bps, the mortgage-Treasury spread is pricing in elevated uncertainty and credit risk; for originators, this means margin compression on new locks and lower refi incentive—the spread must widen or rates fall materially to unlock volume.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2062,
"completionTokens": 339
},
"summary": "The 30-year fixed climbed 5 bps to 6.71% while the 10-year held steady, pushing the mortgage-Treasury spread to 194 bps—a level that reflects persistent rate volatility and tighter lending margins.",
"headline": "Mortgage spreads widen as long yields stabilize",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 189
}05
Proof — the hash-chained record
seq #53
row_hash 3d92d97a04e7e116a583e125389c00dee64f1cf37197c539bea2fe4a85e84860
prev_hash b1b57738b5d4395b21a6a9f1c2bd8dd5bfd3394f68cd89757fba563b263b4734
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.