govpl: card names the licence basis and the earlier footers (v2#106) (#171)

- govpl: card names the licence basis and the earlier footers (v2#106) (7012c992ed0403fa0f139fc56eb70729d8027f24)

data/govpl/govpl.md

@@ -11,7 +11,7 @@ gov.pl — Polish government press releases
 - **Added:** 2026-07-19; PAP reprints removed 2026-10-06; other third-party texts removed 2026-10-19
 
 ## Licensing — traceable basis
-gov.pl publishes its text under CC BY-SA 4.0 (site footer and https://www.gov.pl/web/gov/prawa-autorskie: "Treści tekstowe publikowane w serwisie … są udostępniane na licencji CC BY-SA 4.0"). The same page excludes works whose copyright belongs to third parties; using those needs the owners' consent. Articles crediting PAP and other third-party texts are therefore dropped (legal note).
+gov.pl offers its text under CC BY-SA 4.0. The site footer and https://www.gov.pl/web/gov/prawa-autorskie say: "Treści tekstowe publikowane w serwisie (z wyłączeniem treści audiowizualnych), są udostępniane na licencji typu Creative Commons: uznanie autorstwa - na tych samych warunkach 4.0 (CC BY-SA 4.0)." All rows rely on this offer as it stood when they were fetched (2026-07-19). Wayback captures of the page from 2026-07-18 (https://web.archive.org/web/20260718065324/https://www.gov.pl/web/gov/prawa-autorskie) and 2026-10-15 (https://web.archive.org/web/20261015193442/https://www.gov.pl/web/gov/prawa-autorskie) show the same text. Earlier footers were different: CC BY 3.0 PL from the first capture (2019-08-05) to 2022-08-17, CC BY-NC-ND 3.0 PL from 2022-08-19 to 2025-12-12, and today's text from 2025-12-18. By the date listed on gov.pl, 40,708 rows date from the CC BY-NC-ND 3.0 PL period, 26,974 from the CC BY 3.0 PL period and 9,910 from before 2019-08-05. That today's offer also covers texts first published under an earlier footer is our reading; it is not certain. The same page excludes works whose copyright belongs to third parties; using those needs the owners' consent. Articles crediting PAP and other third-party texts are therefore dropped (legal note).
 
 ## Provenance
 Ministry/agency press releases fetched directly from gov.pl (editor-content per article, HTML stripped) by src/fetch_govpl.py. Subsites + their non-uniform news-section paths are enumerated by src/discover_govpl.py into the committed manifest src/govpl_subsites.json (gov.pl has no sitemap/API). v0.2.6 removes PAP reprints and the third-party texts listed in govpl.third-party-review.csv from the v0.2.5 Parquet with src/clean_govpl.py, which also writes govpl.attribution.jsonl: each row's gov.pl URL, subsite, title and date.

src/sources.py

@@ -752,13 +752,26 @@ SOURCES = {
         "pretty": "gov.pl — Polish government press releases",
         "license": "CC-BY-SA-4.0",
         "license_spdx": "CC-BY-SA-4.0",
-        "traceable": "gov.pl publishes its text under CC BY-SA 4.0 (site footer and "
-                     "https://www.gov.pl/web/gov/prawa-autorskie: \"Treści tekstowe "
-                     "publikowane w serwisie … są udostępniane na licencji CC BY-SA "
-                     "4.0\"). The same page excludes works whose copyright belongs to "
-                     "third parties; using those needs the owners' consent. Articles "
-                     "crediting PAP and other third-party texts are therefore "
-                     "dropped (legal note).",
+        "traceable": "gov.pl offers its text under CC BY-SA 4.0. The site footer and "
+                     "https://www.gov.pl/web/gov/prawa-autorskie say: \"Treści tekstowe "
+                     "publikowane w serwisie (z wyłączeniem treści audiowizualnych), są "
+                     "udostępniane na licencji typu Creative Commons: uznanie autorstwa - na "
+                     "tych samych warunkach 4.0 (CC BY-SA 4.0).\" All rows rely on this offer "
+                     "as it stood when they were fetched (2026-07-19). Wayback captures of the "
+                     "page from 2026-07-18 "
+                     "(https://web.archive.org/web/20260718065324/https://www.gov.pl/web/gov/prawa-autorskie) "
+                     "and 2026-10-15 "
+                     "(https://web.archive.org/web/20261015193442/https://www.gov.pl/web/gov/prawa-autorskie) "
+                     "show the same text. Earlier footers were different: CC BY 3.0 PL from "
+                     "the first capture (2019-08-05) to 2022-08-17, CC BY-NC-ND 3.0 PL from "
+                     "2022-08-19 to 2025-12-12, and today's text from 2025-12-18. By the date "
+                     "listed on gov.pl, 40,708 rows date from the CC BY-NC-ND 3.0 PL period, "
+                     "26,974 from the CC BY 3.0 PL period and 9,910 from before 2019-08-05. "
+                     "That today's offer also covers texts first published under an earlier "
+                     "footer is our reading; it is not certain. The same page excludes works "
+                     "whose copyright belongs to third parties; using those needs the owners' "
+                     "consent. Articles crediting PAP and other third-party texts are "
+                     "therefore dropped (legal note).",
         "upstream": "https://www.gov.pl/",
         "provenance": "Ministry/agency press releases fetched directly from gov.pl "
                       "(editor-content per article, HTML stripped) by "

src/test_govpl_contract.py

@@ -5,6 +5,7 @@ import re
 import sys
 import unittest
 from collections import Counter
+from datetime import date, datetime
 from pathlib import Path
 
 import pyarrow.parquet as pq
@@ -187,6 +188,29 @@ class GovplReleaseContractTest(unittest.TestCase):
         for key in ("traceable", "provenance", "legal_note"):
             self.assertIn(SOURCES["govpl"][key], md, key)
 
+    def test_footer_period_counts_match_card(self):
+        # Footer licence by Wayback capture of /web/gov/prawa-autorskie (v2 evidence/govpl_prawa-autorskie_2026-10-19.md):
+        # first capture 2019-08-05, CC BY 3.0 PL to 2022-08-17, CC BY-NC-ND 3.0 PL 2022-08-19 to 2025-12-12.
+        # A row dated on a capture day counts with that capture's footer; typo dates (year < 2000, after the crawl) are left out.
+        periods = Counter()
+        for a in self.sidecar:
+            try:
+                d = datetime.strptime(a["date"], "%d.%m.%Y").date()
+            except ValueError:
+                continue
+            if d.year < 2000 or d > date(2026, 7, 19):
+                continue
+            if d < date(2019, 8, 5):
+                periods["before 2019-08-05"] += 1
+            elif d <= date(2022, 8, 17):
+                periods["CC BY 3.0 PL"] += 1
+            elif date(2022, 8, 19) <= d <= date(2025, 12, 12):
+                periods["CC BY-NC-ND 3.0 PL"] += 1
+        traceable = SOURCES["govpl"]["traceable"]
+        self.assertIn(f"{periods['CC BY-NC-ND 3.0 PL']:,} rows date from the CC BY-NC-ND 3.0 PL period", traceable)
+        self.assertIn(f"{periods['CC BY 3.0 PL']:,} from the CC BY 3.0 PL period", traceable)
+        self.assertIn(f"{periods['before 2019-08-05']:,} from before 2019-08-05", traceable)
+
     def test_sidecar_gives_every_row_a_govpl_url(self):
         self.assertEqual([a["id"] for a in self.sidecar], self.table.column("id").to_pylist())
         for a in self.sidecar: