Watch it decide · Ledger #196
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.78· AUG 5, 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 — 6.66 · 2026-07-30
- FRED · 10-Year Treasury — 4.7 · 2026-08-03
- FRED · 2-Year Treasury — 4.25 · 2026-08-03
- FRED · Fed Funds Rate — 3.63 · 2026-07-01
- FRED · S&P 500 — 7736.52 · 2026-08-04
03
The gate — deterministic verdict
Decision: published · computed in 36676 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": "2026-07-30",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.66,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-08-03",
"name": "FRED · 10-Year Treasury",
"value": 4.7,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-08-03",
"name": "FRED · 2-Year Treasury",
"value": 4.25,
"seriesId": "DGS2"
},
{
"url": "https://fred.stlouisfed.org/series/FEDFUNDS",
"asOf": "2026-07-01",
"name": "FRED · Fed Funds Rate",
"value": 3.63,
"seriesId": "FEDFUNDS"
},
{
"url": "https://fred.stlouisfed.org/series/SP500",
"asOf": "2026-08-04",
"name": "FRED · S&P 500",
"value": 7736.52,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-07-30",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.66,
"prevAsOf": "2026-07-23",
"seriesId": "MORTGAGE30US",
"prevValue": 6.58
},
{
"asOf": "2026-08-03",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.7,
"prevAsOf": "2026-07-31",
"seriesId": "DGS10",
"prevValue": 4.75
},
{
"asOf": "2026-08-03",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.25,
"prevAsOf": "2026-07-31",
"seriesId": "DGS2",
"prevValue": 4.28
},
{
"asOf": "2026-07-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-06-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-08-04",
"unit": "index",
"label": "S&P 500",
"value": 7736.52,
"prevAsOf": "2026-08-03",
"seriesId": "SP500",
"prevValue": 7600.5
}
]
},
"briefId": 103,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.66%",
"caption": "30-year fixed mortgage rose to 6.66%, up 8 basis points in one day."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.7%",
"caption": "10-year Treasury yield fell to 4.7%, down 5 basis points, but mortgage rates climbed anyway."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.25%",
"caption": "2-year Treasury dropped 3 basis points to 4.25%, yet the curve flattening did not ease the long-end lock."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed funds rate held steady at 3.63%, providing no fresh directional signal."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,736.52",
"caption": "S&P 500 closed at 7,736.52, unchanged in overnight context and offering no immediate risk-off cushion for rate volatility."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "Lenders face widening execution risk as the mortgage-Treasury spread blows out; origination economics compress while refi incentive remains suppressed, forcing capital allocation toward purchase volume or hedging tighter margins.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 1992,
"completionTokens": 318
},
"summary": "The 30-year fixed mortgage climbed 8 basis points while Treasury yields retreated, pushing the mortgage-to-10-year spread to 196 basis points.",
"headline": "Mortgage Spread Widens as Rates Diverge; 30-Year Hits 6.66%",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 105
}05
Proof — the hash-chained record
seq #196
row_hash 2b9ef36fb73bce851b68e7b530b0ebb2a0251666f4a3b53cfbb7301139b83a85
prev_hash 1881e24f7ba270958ad954e84b06e64da10099f1282a35ccf0ff6056ee2f8924
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.