Watch it decide · Ledger #245
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· AUG 13, 2026, 9:01 PM· anthropic/claude-haiku-4.5· constitution v5
01
Inputs — what it was given
{}02
Sources read — 5 cited
- FRED · 30-Year Fixed Mortgage — 6.67 · 2026-08-13
- FRED · 10-Year Treasury — 4.68 · 2026-08-12
- FRED · 2-Year Treasury — 4.2 · 2026-08-12
- FRED · Fed Funds Rate — 3.63 · 2026-07-01
- FRED · S&P 500 — 7748.5 · 2026-08-12
03
The gate — deterministic verdict
Decision: published · computed in 19890 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": "2026-08-13",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.67,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-08-12",
"name": "FRED · 10-Year Treasury",
"value": 4.68,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-08-12",
"name": "FRED · 2-Year Treasury",
"value": 4.2,
"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": "2026-08-12",
"name": "FRED · S&P 500",
"value": 7748.5,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-08-13",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.67,
"prevAsOf": "2026-08-06",
"seriesId": "MORTGAGE30US",
"prevValue": 6.69
},
{
"asOf": "2026-08-12",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.68,
"prevAsOf": "2026-08-11",
"seriesId": "DGS10",
"prevValue": 4.7
},
{
"asOf": "2026-08-12",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.2,
"prevAsOf": "2026-08-11",
"seriesId": "DGS2",
"prevValue": 4.22
},
{
"asOf": "2026-07-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-06-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-08-12",
"unit": "index",
"label": "S&P 500",
"value": 7748.5,
"prevAsOf": "2026-08-11",
"seriesId": "SP500",
"prevValue": 7728.2
}
]
},
"briefId": 123,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.67%",
"caption": "30-year fixed mortgages at 6.67%, down 2bp on the day—still pricing a wide 199bp cushion over the 10-year."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.68%",
"caption": "10-year Treasury yield at 4.68%, unchanged from yesterday, holding just above the 2-year as the long end resists further compression."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.2%",
"caption": "2-year yield at 4.2%, holding steady despite a flat curve; the 48bp inversion to the 10-year persists."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed funds target at 3.63%, unchanged at its July 1 level; no move in the policy rate since then."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,748.5",
"caption": "S&P 500 at 7,748.5, off 0.02bp; equities steady, risk-off sentiment muted."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "With mortgage-to-Treasury spreads holding near session wides and the curve staying flat, secondary market hedging costs remain elevated; refinance incentive stays muted, favoring refi-averse MSR risk profiles but pressuring origination volume in a 6.67% rate environment.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 1992,
"completionTokens": 364
},
"summary": "30-year mortgages at 6.67% sit 199bp wide of 10-year Treasuries; the 10–2 curve remains inverted at 48bp.",
"headline": "Mortgage-Treasury Spread Holds Above 200bp as Curve Flattens",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 125
}05
Proof — the hash-chained record
seq #245
row_hash 0236be3f08ff3cecf9165db20ee2d1a1b2b612070c10fa09c6a5603f93ab6841
prev_hash 4b542f77661aa99b48b752b9336dc2c586ab4d060ff9a2b0da42254348aad961
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.