# Data audit
| file | sha256 | rows | cols |
|---|---|---|---|
| data/series.csv | c29dde22e215b14fe04d1786c9e9634c18863c78d1c283636e9cbfb31dabc514 | 400 (+header) | 3 (month str YYYY-MM; x float; y float) |
| data/memo.md | 0486b6a6e26671a53d02e9cf0ceee063479ea0a05bd07aadf76aa71e9d2a0568 | text | – |

- Dates 1990-01 to 2023-04, 400 consecutive months, all gaps = 1 month, no duplicate months.
- Missing values: 0 in every column. Units: dimensionless (simulated).
- x: mean -0.134, sd 1.005, range [-2.69, 2.36], lag-1 autocorr 0.66. y: mean 2.079, sd 0.904, range [0.0036, 4.81], lag-1 autocorr 0.62. No outliers of concern.
- No information-availability violations: only data/ files used; memo numbers are recomputed, not imported.
- No exclusions needed.