Watch it decide · Ledger #253
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.89· OCT 6, 2026, 9:00 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 — 5.31 · 2026-10-05
- FRED · 2-Year Treasury — 4.84 · 2026-10-05
- FRED · Fed Funds Rate — 3.75 · 2026-09-01
- FRED · S&P 500 — 7773.95 · 2026-10-05
03
The gate — deterministic verdict
Decision: published · computed in 15672 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": 0.89
},
"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": "2026-10-05",
"name": "FRED · 10-Year Treasury",
"value": 5.31,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-10-05",
"name": "FRED · 2-Year Treasury",
"value": 4.84,
"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": "2026-10-05",
"name": "FRED · S&P 500",
"value": 7773.95,
"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": "2026-10-05",
"unit": "percent",
"label": "10-Year Treasury",
"value": 5.31,
"prevAsOf": "2026-10-02",
"seriesId": "DGS10",
"prevValue": 5.28
},
{
"asOf": "2026-10-05",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.84,
"prevAsOf": "2026-10-02",
"seriesId": "DGS2",
"prevValue": 4.83
},
{
"asOf": "2026-09-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.75,
"prevAsOf": "2026-08-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-10-05",
"unit": "index",
"label": "S&P 500",
"value": 7773.95,
"prevAsOf": "2026-10-02",
"seriesId": "SP500",
"prevValue": 7722.72
}
]
},
"briefId": 273,
"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 jumped 25 bps to 7.28%, the largest single-day move in the readings, outpacing Treasury repricing and signaling lender hedging activity or spread adjustment."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "5.31%",
"caption": "10-year Treasury rose only 3 bps to 5.31%, a modest move that underscores the mortgage spike as spread-driven rather than duration-driven."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.84%",
"caption": "2-year Treasury ticked up 1 bp to 4.84%, with the Fed Funds Rate climbing 12 bps to 3.75%, keeping near-term policy expectations anchored."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.75%"
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,773.95"
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "The sharp one-day mortgage move outpaces underlying Treasury shifts, widening the mortgage–10Y spread to 197 bps and reinforcing secondary-market repricing pressure; origination volume likely contracts further as purchase power erodes and refi incentive remains absent.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 2064,
"completionTokens": 357
},
"summary": "The 30-year fixed mortgage spiked to 7.28% while the 10–2 spread compressed to 47 bps, signaling renewed duration risk and refinance headwinds for servicers.",
"headline": "Mortgage Rates Jump 25 Bps as Treasury Curve Flattens",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 275
}05
Proof — the hash-chained record
seq #253
row_hash 5fc474517fa02313e80ff6b5711cb62a97a97ddba9d2b8cbd0f954199db00406
prev_hash 887067a56523312c6fb5cec1667f212117bd4c93d61c6b1a4cff9c8c454d4aaa
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.