oath_date stringdate 2026-09-01 00:00:00 2026-09-01 00:00:00 | site_label stringclasses 3
values | resource stringclasses 1
value | status_or_transport int64 200 404 | body_sha256 stringclasses 2
values | our_user_agent stringclasses 1
value |
|---|---|---|---|---|---|
2026-09-01 | site-A | /robots.txt | 200 | 8fa3036c68bfcbd32365f6225d24333264093b7cd38d306e106b4dbdc934fd5b | closing-web-clock/1.0 |
2026-09-01 | site-B | /robots.txt | 403 | none | closing-web-clock/1.0 |
2026-09-01 | site-C | /robots.txt | 404 | none | closing-web-clock/1.0 |
Dated samples of United States public-record change files
15 samples, one folder per family. Each folder holds sample.csv, sample.json and a README naming the source, the columns, the sealing date and the row count.
Every file is a change file, not a snapshot. We seal dated copies of a public source, compare two copies, and keep what appeared, what stopped being listed, and what quietly changed in between. Most of these sources publish only the list as it stands today and overwrite the last one, so the history is not recoverable once it is gone.
| Folder | Source material | Sample rows | Sealed |
|---|---|---|---|
| chicago, los-angeles, baton-rouge, washington-dc, boston | City building permits | 25 each | 2026-08-25 |
| metro-file | Multi-city building permits | 25 | 2026-08-25 |
| nyc-ll84 | New York Local Law 84 energy and water disclosure | 25 | 2026-08-25 |
| ttb | Federal alcohol permit list, appear and disappear | 25 | 2026-08-25 |
| agentic-commerce | Machine-buyable storefront files | 11 | 2026-08-25 |
| address-packet | Address records | 21 | 2026-09-01 |
| clean-room-corpus | Records released under a county notice | 75 | 2026-09-01 |
| access-affidavits | Crawler-access statements | 3 | 2026-09-01 |
| stamper-appendix | Evidence appendix rows | 3 | 2026-09-01 |
| machine-visitor-ledger | Synthetic fixture log, invented addresses | 10 | 2026-09-01 |
| predictor-diet | Model input report rows | 8 | 2026-09-02 |
Row counts above are data rows. Four files carry extra lines that a source publisher requires us to keep with the rows; those lines are not data and each folder's README says which.
These samples exist to test whether the file loads in your pipeline. They are too small to answer a research question, and they do not establish customer activity or business performance.
Sources, coverage dates, column lists, delivery terms and prices for the complete files are documented per family at https://ustechautomations.com/feeds/
Licence: See LICENSE in this repository.
Questions: admin@ustechautomations.com
Tooling: CSV comparison and coverage check · Run and reproduce
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