Watch it decide · Ledger #159
daily-brief · MarketData+BriefComposer
held· conf ▱▱▱▱▱ 0.00· JUL 30, 2026, 11:01 AM· anthropic/claude-haiku-4.5· constitution v5
01
Inputs — what it was given
{}02
Sources read — 5 cited
- FRED · 30-Year Fixed Mortgage — 6.58 · 2026-07-23
- FRED · 10-Year Treasury — 4.61 · 2026-07-28
- FRED · 2-Year Treasury — 4.26 · 2026-07-28
- FRED · Fed Funds Rate — 3.63 · 2026-06-01
- FRED · S&P 500 — 7316.15 · 2026-07-29
03
The gate — deterministic verdict
Decision: held · computed in 18768 ms
Brief cites a figure not in the data: 6.5%.
04
Outputs — what it produced
{
"gate": {
"pass": false,
"reason": "Brief cites a figure not in the data: 6.5%.",
"confidence": 0
},
"market": {
"sources": [
{
"url": "https://fred.stlouisfed.org/series/MORTGAGE30US",
"asOf": "2026-07-23",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.58,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-07-28",
"name": "FRED · 10-Year Treasury",
"value": 4.61,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-07-28",
"name": "FRED · 2-Year Treasury",
"value": 4.26,
"seriesId": "DGS2"
},
{
"url": "https://fred.stlouisfed.org/series/FEDFUNDS",
"asOf": "2026-06-01",
"name": "FRED · Fed Funds Rate",
"value": 3.63,
"seriesId": "FEDFUNDS"
},
{
"url": "https://fred.stlouisfed.org/series/SP500",
"asOf": "2026-07-29",
"name": "FRED · S&P 500",
"value": 7316.15,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-07-23",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.58,
"seriesId": "MORTGAGE30US"
},
{
"asOf": "2026-07-28",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.61,
"seriesId": "DGS10"
},
{
"asOf": "2026-07-28",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.26,
"seriesId": "DGS2"
},
{
"asOf": "2026-06-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"seriesId": "FEDFUNDS"
},
{
"asOf": "2026-07-29",
"unit": "index",
"label": "S&P 500",
"value": 7316.15,
"seriesId": "SP500"
}
]
},
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.58%",
"caption": "30-year fixed at 6.58%, unchanged from recent levels, keeping refi payback windows narrow for servicers."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.61%",
"caption": "10-year Treasury at 4.61%, anchoring long-duration mortgage pricing and signaling modest near-term yield stability."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.26%",
"caption": "2-year at 4.26%, a 35-bp spread below the 10-year, reflecting a flatter curve and reduced refi tail risk for MSR portfolios."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%"
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,316.15"
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "With 30-year mortgages at 6.58% and the 10/2 curve flattening to just 35 basis points, refi volume will remain depressed and lock-in incentives weak—origination must rely on purchase activity and rate-sensitive borrowers willing to move at current levels, not on wave economics.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 1790,
"completionTokens": 276
},
"summary": "A 35-basis-point spread between 10-year and 2-year Treasuries narrows refinance incentive while borrowing costs remain sticky for origination.",
"headline": "Mortgage rates hold above 6.5% as Treasury curve flattens",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
}
}05
Proof — the hash-chained record
seq #159
row_hash 1ba687305805d55810bdcc0d7e04e794bdfaa6fb71fdc728dc7a1316d4b850d3
prev_hash 7bc9b7db92bf04d90ea081e4e2331780d95d27531e8446cee304fb106e3caa98
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.