Watch it decide · Ledger #229
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▰ 0.92· OCT 3, 2026, 4:00 PM· anthropic/claude-haiku-4.5· constitution v5
01
Inputs — what it was given
{}02
Sources read — 5 cited
- FRED · 30-Year Fixed Mortgage — 7.28 · 2026-10-01
- FRED · 10-Year Treasury — 5.24 · 2026-10-01
- FRED · 2-Year Treasury — 4.78 · 2026-10-01
- FRED · Fed Funds Rate — 3.75 · 2026-09-01
- FRED · S&P 500 — 7722.72 · 2026-10-02
03
The gate — deterministic verdict
Decision: published · computed in 12261 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": "2026-10-01",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 7.28,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-10-01",
"name": "FRED · 10-Year Treasury",
"value": 5.24,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-10-01",
"name": "FRED · 2-Year Treasury",
"value": 4.78,
"seriesId": "DGS2"
},
{
"url": "https://fred.stlouisfed.org/series/FEDFUNDS",
"asOf": "2026-09-01",
"name": "FRED · Fed Funds Rate",
"value": 3.75,
"seriesId": "FEDFUNDS"
},
{
"url": "https://fred.stlouisfed.org/series/SP500",
"asOf": "2026-10-02",
"name": "FRED · S&P 500",
"value": 7722.72,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 7.28,
"prevAsOf": "2026-09-24",
"seriesId": "MORTGAGE30US",
"prevValue": 7.03
},
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "10-Year Treasury",
"value": 5.24,
"prevAsOf": "2026-09-30",
"seriesId": "DGS10",
"prevValue": 5.29
},
{
"asOf": "2026-10-01",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.78,
"prevAsOf": "2026-09-30",
"seriesId": "DGS2",
"prevValue": 4.88
},
{
"asOf": "2026-09-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.75,
"prevAsOf": "2026-08-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-10-02",
"unit": "index",
"label": "S&P 500",
"value": 7722.72,
"prevAsOf": "2026-10-01",
"seriesId": "SP500",
"prevValue": 7666.45
}
]
},
"briefId": 263,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "7.28%",
"caption": "30-year fixed mortgage shot up 25 bps to 7.28%, the steepest single-day move in the readings."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "5.24%",
"caption": "10-year Treasury dipped 5 bps to 5.24%, but gains there were swamped by mortgage-side repricing."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.78%",
"caption": "2-year Treasury fell 10 bps to 4.78%, steepening the curve to 46 bps as Fed Funds held above 3.75%."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.75%",
"caption": "Fed Funds edged up 12 bps to 3.75%, keeping short-end pressure on servicer funding costs."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,722.72",
"caption": "S&P 500 closed at 7,722.72, unchanged in the brief window and offering no equity offset to rate volatility."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "A sharp one-day pop in mortgage rates without corresponding Treasury weakness signals lender repricing risk — servicers face tighter net-carry margins and refi volumes will remain subdued, while the 204 bps spread leaves little room for secondary market cushion if rates stabilize.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2064,
"completionTokens": 355
},
"summary": "The 30-year fixed vaulted to 7.28% while Treasuries rallied, widening the mortgage-to-10Y spread to 204 bps.",
"headline": "Mortgage Rates Jump 25 Bps as Curve Steepens",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 265
}05
Proof — the hash-chained record
seq #229
row_hash 6a48fd9ae906cccb935ec1a6b8f72b01098622736e93af80bf83b87bd812b9d0
prev_hash 441a1cc4cefcf94c7af8104cf388a8376d7da64b33a56e1845834964c065fb9d
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.