Watch it decide · Ledger #90
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.78· SEP 10, 2026, 4:01 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 — 4.8 · 2026-09-08
- FRED · 2-Year Treasury — 4.39 · 2026-09-08
- FRED · Fed Funds Rate — 3.63 · 2026-08-01
- FRED · S&P 500 — 7636.36 · 2026-09-09
03
The gate — deterministic verdict
Decision: published · computed in 24754 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": 0.78
},
"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": "2026-09-08",
"name": "FRED · 10-Year Treasury",
"value": 4.8,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-09-08",
"name": "FRED · 2-Year Treasury",
"value": 4.39,
"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": "2026-09-09",
"name": "FRED · S&P 500",
"value": 7636.36,
"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": "2026-09-08",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.8,
"prevAsOf": "2026-09-04",
"seriesId": "DGS10",
"prevValue": 4.78
},
{
"asOf": "2026-09-08",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.39,
"prevAsOf": "2026-09-04",
"seriesId": "DGS2",
"prevValue": 4.37
},
{
"asOf": "2026-08-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-07-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-09-09",
"unit": "index",
"label": "S&P 500",
"value": 7636.36,
"prevAsOf": "2026-09-08",
"seriesId": "SP500",
"prevValue": 7673.52
}
]
},
"briefId": 203,
"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%, tracking a modest uptick in Treasury yields."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.8%",
"caption": "10-year Treasury at 4.8%, up 2 bps, anchoring longer-end rate expectations."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.39%",
"caption": "2-year Treasury at 4.39%, also up 2 bps, keeping the curve nearly flat at 41 bps."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed Funds Rate unchanged at 3.63%, providing no new policy signal."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,636.36",
"caption": "S&P 500 at 7,636.36, reflecting equity market stability amid steady rate backdrop."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "The widening mortgage spread—now at 191 bps—signals tighter secondary market conditions and elevated cost-of-funds pricing, which will constrain origination margins and refinance incentives; the flat 41 bp 10Y/2Y curve reinforces near-term rate stability and limited prepay risk in the MSR book.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2062,
"completionTokens": 341
},
"summary": "The 30-year mortgage rose 5 bps to 6.71% while Treasury yields climbed modestly, pushing the mortgage-to-10-year spread to 191 bps.",
"headline": "Mortgage spreads widen as curve flattens; 30-year hits 6.71%",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 205
}05
Proof — the hash-chained record
seq #90
row_hash bc9282203fca51370c933b5561dad4aced9f8ab7f4587a642e10a20dfda2699a
prev_hash 49a9d0254c8682666a8517332a3d128b9ee1e8b548696588b6541d46d43a1a88
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.