Watch it decide · Ledger #109
daily-brief · MarketData+BriefComposer
published· conf ▰▰▰▰▱ 0.89· JUL 21, 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 — 6.55 · 2026-07-16
- FRED · 10-Year Treasury — 4.6 · 2026-07-20
- FRED · 2-Year Treasury — 4.21 · 2026-07-20
- FRED · Fed Funds Rate — 3.63 · 2026-06-01
- FRED · S&P 500 — 7443.28 · 2026-07-20
03
The gate — deterministic verdict
Decision: published · computed in 11317 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": "2026-07-16",
"name": "FRED · 30-Year Fixed Mortgage",
"value": 6.55,
"seriesId": "MORTGAGE30US"
},
{
"url": "https://fred.stlouisfed.org/series/DGS10",
"asOf": "2026-07-20",
"name": "FRED · 10-Year Treasury",
"value": 4.6,
"seriesId": "DGS10"
},
{
"url": "https://fred.stlouisfed.org/series/DGS2",
"asOf": "2026-07-20",
"name": "FRED · 2-Year Treasury",
"value": 4.21,
"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": "2026-07-20",
"name": "FRED · S&P 500",
"value": 7443.28,
"seriesId": "SP500"
}
],
"readings": [
{
"asOf": "2026-07-16",
"unit": "percent",
"label": "30-Year Fixed Mortgage",
"value": 6.55,
"seriesId": "MORTGAGE30US"
},
{
"asOf": "2026-07-20",
"unit": "percent",
"label": "10-Year Treasury",
"value": 4.6,
"seriesId": "DGS10"
},
{
"asOf": "2026-07-20",
"unit": "percent",
"label": "2-Year Treasury",
"value": 4.21,
"seriesId": "DGS2"
},
{
"asOf": "2026-06-01",
"unit": "percent",
"label": "Fed Funds Rate",
"value": 3.63,
"seriesId": "FEDFUNDS"
},
{
"asOf": "2026-07-20",
"unit": "index",
"label": "S&P 500",
"value": 7443.28,
"seriesId": "SP500"
}
]
},
"briefId": 76,
"composed": {
"spec": {
"root": {
"kind": "Stack",
"children": [
{
"cols": 3,
"kind": "Grid",
"children": [
{
"kind": "Stat",
"label": "30-Year Fixed Mortgage",
"value": "6.55%",
"caption": "30-year fixed at 6.55% keeps origination volumes constrained; only tactical refi targets remain viable."
},
{
"kind": "Stat",
"label": "10-Year Treasury",
"value": "4.6%",
"caption": "10-year at 4.6% sits 39 basis points above the 2-year, leaving little room for curve-driven refi waves."
},
{
"kind": "Stat",
"label": "2-Year Treasury",
"value": "4.21%",
"caption": "2-year yield at 4.21% pins short-rate expectations, reflecting persistent inflation concerns and policy hold."
},
{
"kind": "Stat",
"label": "Fed Funds Rate",
"value": "3.63%",
"caption": "Funds rate at 3.63% (as of June) anchors the near end, with limited easing priced into the curve."
},
{
"kind": "Stat",
"label": "S&P 500",
"value": "7,443.28",
"caption": "Equities at 7,443 hold steady, signaling stable risk appetite and no acute flight-to-quality pressure on yields."
}
]
},
{
"kind": "Text",
"text": "What it means for your shop",
"emphasis": "mono"
},
{
"kind": "Callout",
"text": "Origination margins tighten with the flatter curve—refinance activity remains suppressed at 6.55% while funding costs stay elevated, pressuring net servicing spreads and hedging efficiency for portfolio managers holding long duration.",
"tone": "info"
}
]
},
"title": "markets & rates"
},
"label": "autonomous · AI-generated",
"usage": {
"promptTokens": 1790,
"completionTokens": 312
},
"summary": "Long-end yields hold steady while short rates anchor, compressing the incentive for duration extension.",
"headline": "Treasury curve flattens as 10/2 spread narrows to 39 basis points",
"disclaimer": "Not financial advice. Generated autonomously from public Federal Reserve data."
},
"artifactId": 78
}05
Proof — the hash-chained record
seq #109
row_hash f694c140970c051df159dea24e487bda82261ab8e37e2de66801cd24371290e0
prev_hash e1eff1727a12d826c93b69c8cb2263b22fcd2fa19e8c95547ab336572efd7a86
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.