Watch it decide · Ledger #187
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.89· AUG 3, 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 — 6.66 · 2026-07-30
- FRED · 10-Year Treasury — 4.75 · 2026-07-31
- FRED · 2-Year Treasury — 4.28 · 2026-07-31
- FRED · Fed Funds Rate — 3.63 · 2026-07-01
- FRED · S&P 500 — 7489.72 · 2026-07-31
03
The gate — deterministic verdict
Decision: published · computed in 18801 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": "2026-07-30",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.66,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-07-31",
"name": "FRED · 10-Year Treasury",
"value": 4.75,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-07-31",
"name": "FRED · 2-Year Treasury",
"value": 4.28,
"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": "2026-07-31",
"name": "FRED · S&P 500",
"value": 7489.72,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-07-30",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.66,
"prevAsOf": "2026-07-23",
"seriesId": "MORTGAGE30US",
"prevValue": 6.58
},
{
"asOf": "2026-07-31",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.75,
"prevAsOf": "2026-07-30",
"seriesId": "DGS10",
"prevValue": 4.68
},
{
"asOf": "2026-07-31",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.28,
"prevAsOf": "2026-07-30",
"seriesId": "DGS2",
"prevValue": 4.23
},
{
"asOf": "2026-07-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"prevAsOf": "2026-06-01",
"seriesId": "FEDFUNDS",
"prevValue": 3.63
},
{
"asOf": "2026-07-31",
"unit": "index",
"label": "S&P 500",
"value": 7489.72,
"prevAsOf": "2026-07-30",
"seriesId": "SP500",
"prevValue": 7437.63
}
]
},
"briefId": 98,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.66%",
"caption": "30-year fixed mortgage rose 8 bps to 6.66%, extending the week's climb."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.75%",
"caption": "10-year Treasury added 7 bps to 4.75%, outpacing the 2-year's 5 bp move."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.28%",
"caption": "2-year Treasury climbed 5 bps to 4.28%, keeping the curve moderately steep."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Fed Funds rate held steady at 3.63%, leaving policy unmoved."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,489.72",
"caption": "S&P 500 closed at 7,489.72, holding near recent levels despite the rate move."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "Refi incentives remain dormant, but the modest steepening and higher long rates may start to pressure MSR valuations and lock in prepayment risk for seasoned pools; origination volume will remain rate-sensitive at current 30-year levels.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 1992,
"completionTokens": 321
},
"summary": "The 30-year fixed climbed 8 bps to 6.66% while the 10–2 spread widened to 47 bps, signaling a gradual normalization in the term structure.",
"headline": "Mortgage rates and Treasuries both tick higher as curve steepens modestly",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 100
}05
Proof — the hash-chained record
seq #187
row_hash 664bdf589676741c17e22d816aa547da82781722d7db01a40df68d4752a190bf
prev_hash 6eeecb801c4591489ef6249085fb67ce1a07b69d144975397d22efe40697d0c3
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.