Sync canonical offer/contact block (hf_cards_sync)

README.md

@@ -132,3 +132,98 @@ same CC BY 4.0 licence.
 
 Source code: [github.com/APVentureEngine/warn-act-notices](https://github.com/APVentureEngine/warn-act-notices).
 Underlying scrapers include Apache-2.0 code from `biglocalnews/warn-scraper`.
+
+<!-- warn-feed:offer:start -->
+## A layoff record you can audit, not just download
+
+This dataset is one cut of a single daily rebuild: **61,431 US WARN Act
+layoff notices from 48 state agencies, 1988 to today**, one schema, no
+login, no delay, CC BY 4.0. Snapshot as of **2026-09-24**; the files above are
+rebuilt every day, so the live count is the truth.
+
+Several projects publish a current WARN scrape and two of them carry more rows
+than we do. None of them publish what the records **used to say**:
+
+- **2,472 observed changes to already-published notices, logged daily since 2026-08-31.**
+  `data/revisions.csv` records every field that differed between two consecutive
+  daily builds — employee counts, effective dates, notice types, company names —
+  with the old value, the new value and the date we saw it. We publish the
+  observation and not the cause: a change is equally explained by the agency
+  amending the notice or by our own parser improving, and we do not guess which
+  (see `data/revisions.README.txt`). A scrape that starts tomorrow cannot backfill
+  any of it; it only exists if someone was watching.
+- **6,799 notices whose state agency page no longer lists them.** Agencies
+  take notices down. We keep them, flagged as archive-only, so a count you ran
+  last year still reconciles.
+- **Point-in-time employer identity.** The ticker crosswalk resolves a filer to
+  the company as it existed at the time of the notice — Kmart, Sears Holdings,
+  Symantec — not to whatever is on today's ticker file.
+
+If you have to defend a number to an editor, a referee or a compliance reviewer,
+that provenance layer is the part you cannot rebuild yourself.
+[How to cite this dataset →](https://github.com/APVentureEngine/warn-act-notices/blob/main/CITATION.cff)
+
+**Look something up right now — free, no signup, nothing to install.**
+[Check any employer or state against the last 180 days
+→](https://approjects-warn-act-notices.static.hf.space/watch-now.html) It runs in your browser against these same files.
+
+**Building something with it?** The same files are a free HTTP API — JSON and
+CSV, no key, no signup, `access-control-allow-origin: *` so `fetch()` works from
+a browser: [endpoints, schema and curl examples →](https://approjects-warn-act-notices.static.hf.space/api.html)
+
+**Prefer a spreadsheet?** One formula puts the last 90 days, the last 12 months
+or any single state into Google Sheets as a live range that refreshes itself —
+no signup, no add-on: [the formulas, one per state →](https://approjects-warn-act-notices.static.hf.space/sheets.html)
+`=IMPORTDATA("https://cdn.jsdelivr.net/gh/APVentureEngine/warn-act-notices@main/data/sheets/us-last-90-days.csv")`
+
+**Backtesting, or citing a figure you published last month?** Today's file has
+look-ahead and survivorship bias baked in: notices get amended after the fact and
+some rows are later deleted. The same table as it stood on any past day since
+**2026-08-30** — one immutable vintage per day, 24 so far, plus a first-appearance
+index giving the first and last day every notice id was in the file — is the
+[point-in-time snapshot archive](https://huggingface.co/datasets/APProjects/us-warn-act-layoffs-point-in-time-snapshots). Nobody can backfill it.
+
+**Need one industry only?** The same filings, cut by an auditable employer-name
+rule (each row keeps the rule that fired): [tech companies](https://huggingface.co/datasets/APProjects/us-tech-company-layoffs-warn-act-notices-daily)
+· [hospitals & healthcare](https://huggingface.co/datasets/APProjects/us-hospital-healthcare-layoffs-warn-act-notices-daily)
+· [retail store closings](https://huggingface.co/datasets/APProjects/us-retail-store-closings-layoffs-warn-act-notices-daily)
+· [restaurants & hotels](https://huggingface.co/datasets/APProjects/us-restaurant-hotel-closings-layoffs-warn-act-notices-daily)
+· [factory & plant closings](https://huggingface.co/datasets/APProjects/us-factory-plant-closings-manufacturing-layoffs-warn-act-notices-daily)
+· [banks, insurance & finance](https://huggingface.co/datasets/APProjects/us-bank-insurance-finance-layoffs-warn-act-notices-daily)
+· [warehouses, trucking & logistics](https://huggingface.co/datasets/APProjects/us-warehouse-trucking-logistics-layoffs-warn-act-notices-daily)
+· [all 20 sectors](https://huggingface.co/datasets/APProjects/us-layoffs-by-industry-sector-warn-act).
+
+**Or have it watch a list for you.** Coming back to look is the part a CSV cannot
+do. **WARN Watch — $49 for a year**, one payment, nothing auto-renews, 14-day
+refund, no login: up to 500 employer names plus whole states, matched on every
+daily refresh, delivered to a private alert page + calendar (.ics) + RSS +
+an optional Slack / Discord / Teams webhook. Every alert carries that employer's
+whole filing history from the archive, which a keyword rule on an RSS feed cannot
+see. There is no built-in email — we do not claim one.
+
+- [See a real alert page before paying](https://approjects-warn-act-notices.static.hf.space/watch-sample.html) · [what you get](https://approjects-warn-act-notices.static.hf.space/watch.html)
+- [Try it free for 30 days, no card](https://approj.gumroad.com/l/warn-free-watch) · [Buy — $49/year](https://approj.gumroad.com/l/warn-watch)
+
+**Not deciding today?** [Join the update list →](https://approj.gumroad.com/subscribe) — one email when a
+new dataset or tier is published; nothing promotional. A state added or a column
+renamed ships in the [daily release](https://github.com/APVentureEngine/warn-act-notices/releases) instead, no address
+needed. The list is
+shared across APProjects datasets, holds an email address only, is run by
+Gumroad, and any message unsubscribes you. Rather give no address at all?
+[Watch the repo's releases](https://github.com/APVentureEngine/warn-act-notices/subscription) — GitHub notifies you on
+every daily republish, and a new state or changed field is in those notes the
+day it lands.
+
+**Reaching a human.** WARN Feed is published by APProjects, an automated data
+publisher — that is stated plainly rather than dressed up. Corrections, coverage
+gaps, schema questions and refund requests all go here and are read:
+[open an issue](https://github.com/APVentureEngine/warn-act-notices/issues/new/choose). Payments are handled by Gumroad as merchant of
+record, so an invoice can carry your company name.
+
+[Source, scrapers and methodology](https://github.com/APVentureEngine/warn-act-notices) · [the 48-state site](https://approjects-warn-act-notices.static.hf.space/)
+<!-- warn-feed:offer:end -->
+
+<!-- warn-feed:px:start -->
+<img src="https://cdn.jsdelivr.net/gh/APVentureEngine/warn-act-notices@main/assets/px/hf/space-warn-act-notices.png" width="1" height="1" alt="">
+<sub>Card views are counted anonymously: one 1×1 image on a public CDN, no cookies, no script, no personal data. The count is public: <a href="https://data.jsdelivr.com/v1/stats/packages/gh/APVentureEngine/warn-act-notices@main/files?period=month">jsDelivr stats</a>.</sub>
+<!-- warn-feed:px:end -->