Watch it decide · Ledger #156
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.84· JUL 29, 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 — 6.58 · 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 — 7428.78 · 2026-07-28
03
The gate — deterministic verdict
Decision: published · computed in 20052 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": 0.84
},
"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": "2026-07-28",
"name": "FRED · S&P 500",
"value": 7428.78,
"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": "2026-07-28",
"unit": "index",
"label": "S&P 500",
"value": 7428.78,
"seriesId": "SP500"
}
]
},
"briefId": 83,
"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 in its recent band — enough to keep purchase demand constrained."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.61%",
"caption": "10-year Treasury at 4.61%, holding the anchor for longer-duration mortgage pricing."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.26%",
"caption": "2-year at 4.26%, only 35 basis points below the 10-year — a flattened curve leaving little room for yield-driven positioning."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed Funds at 3.63% (last June reading), trailing current Treasury yields and signaling policy easing already priced in."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,428.78",
"caption": "S&P 500 at 7,428.78, steady and offering no volatility shock to refinance behavior or hedging demand."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "With the 10-year at 4.61% and the curve nearly flat, origination volume remains challenged by elevated rates; the modest spread offers minimal refi incentive, leaving MSR duration risk contained but origination margins under sustained compression.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 1790,
"completionTokens": 326
},
"summary": "The 30-year fixed sits at 6.58% while the 10/2 spread compresses, signaling muted refinance pressure but persistent origination headwinds.",
"headline": "Mortgage Rates Hold Steady as Treasury Curve Flattens",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 85
}05
Proof — the hash-chained record
seq #156
row_hash 525a48914656b0ce7c09a17f402ccd60756855374c83b4695378c5b6e36341b9
prev_hash 8095c32d3003b8a6bd218817dc4cf22ed74d7113ca91cab6fff1e8bf581c9cbd
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.