diff --git a/works/aristotle.nicomachean-ethics.yaml b/works/aristotle.nicomachean-ethics.yaml
index 2b3460c1..50cfb9c2 100644
--- a/works/aristotle.nicomachean-ethics.yaml
+++ b/works/aristotle.nicomachean-ethics.yaml
@@ -12,14 +12,14 @@ citation_system: bekker
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q474537'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Nicomachean_Ethics'
     source: 'wikidata:Q474537'
     status: candidate
@@ -32,11 +32,24 @@ resolvers:
     language: grc
     access: open
     license: CC-BY-SA-3.0
-    license_url: 'https://www.perseus.tufts.edu/hopper/about/copyright'
+    license_url: 'https://www.perseus.tufts.edu/hopper/opensource'
     # Perseus accepts the short citation form "Aristot. Nic. Eth. {page}{column}"
     # in the `doc` query; lands on the Bekker column. Line is not addressable.
     url: 'https://www.perseus.tufts.edu/hopper/text?doc=Aristot.+Nic.+Eth.+{page}{column}'
     last_checked: '2026-06-03'
+  - provider: Project Gutenberg
+    edition: 'The Nicomachean Ethics of Aristotle'
+    language: en
+    access: open
+    license: 'public-domain'
+    # Coarse landing-page fallback: the Ross translation is a single ebook
+    # with no Bekker anchor, so the URL has no locator placeholders and
+    # resolves to the same page for every reference. The Perseus
+    # canonical-greekLit edition is indexed by Bywater book.section, not
+    # Bekker page+column, so a Scaife CTS URN cannot be derived from a
+    # Bekker locator alone.
+    url: 'https://www.gutenberg.org/ebooks/8438'
+    last_checked: '2026-06-09'
 
 # Page ranges by book: I 1094a–1103a, II 1103a–1109b, III 1109b–1119b,
 # IV 1119b–1128b, V 1129a–1138b, VI 1138b–1145a, VII 1145a–1154b,
diff --git a/works/confucius.analects.yaml b/works/confucius.analects.yaml
index 0af67f5e..e4066db6 100644
--- a/works/confucius.analects.yaml
+++ b/works/confucius.analects.yaml
@@ -12,14 +12,14 @@ citation_system: analects-book-chapter
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q276015'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Analects'
     source: 'wikidata:Q276015'
     status: candidate
@@ -54,6 +54,37 @@ resolvers:
         18: 'https://ctext.org/analects/wei-zi'
         19: 'https://ctext.org/analects/zi-zhang'
         20: 'https://ctext.org/analects/yao-yue'
+  - provider: Wikisource
+    edition: 'Lunyu (論語), 朱熹集註 edition on zh.wikisource'
+    language: lzh
+    access: open
+    license: CC-BY-SA-4.0
+    # Per-book pages keyed by the traditional chapter title plus ordinal
+    # (學而第一 … 堯曰第二十). Slugs are not derivable from the numeric book
+    # capture, so each is listed explicitly.
+    last_checked: '2026-06-09'
+    url_by:
+      book:
+        1: 'https://zh.wikisource.org/wiki/論語/學而第一'
+        2: 'https://zh.wikisource.org/wiki/論語/為政第二'
+        3: 'https://zh.wikisource.org/wiki/論語/八佾第三'
+        4: 'https://zh.wikisource.org/wiki/論語/里仁第四'
+        5: 'https://zh.wikisource.org/wiki/論語/公冶長第五'
+        6: 'https://zh.wikisource.org/wiki/論語/雍也第六'
+        7: 'https://zh.wikisource.org/wiki/論語/述而第七'
+        8: 'https://zh.wikisource.org/wiki/論語/泰伯第八'
+        9: 'https://zh.wikisource.org/wiki/論語/子罕第九'
+        10: 'https://zh.wikisource.org/wiki/論語/鄉黨第十'
+        11: 'https://zh.wikisource.org/wiki/論語/先進第十一'
+        12: 'https://zh.wikisource.org/wiki/論語/顏淵第十二'
+        13: 'https://zh.wikisource.org/wiki/論語/子路第十三'
+        14: 'https://zh.wikisource.org/wiki/論語/憲問第十四'
+        15: 'https://zh.wikisource.org/wiki/論語/衛靈公第十五'
+        16: 'https://zh.wikisource.org/wiki/論語/季氏第十六'
+        17: 'https://zh.wikisource.org/wiki/論語/陽貨第十七'
+        18: 'https://zh.wikisource.org/wiki/論語/微子第十八'
+        19: 'https://zh.wikisource.org/wiki/論語/子張第十九'
+        20: 'https://zh.wikisource.org/wiki/論語/堯曰第二十'
 
 # Per-book chapter counts (Yang Bojun / Legge tradition, with minor variant
 # divisions). Expands to 517 references across 20 books.
diff --git a/works/dhammapada.yaml b/works/dhammapada.yaml
index 29c116cc..2126f62a 100644
--- a/works/dhammapada.yaml
+++ b/works/dhammapada.yaml
@@ -9,14 +9,14 @@ citation_system: dhammapada-chapter-verse
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q748878'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Dhammapada'
     source: 'wikidata:Q748878'
     status: candidate
diff --git a/works/homer.iliad.yaml b/works/homer.iliad.yaml
index 4d227a64..1384e037 100644
--- a/works/homer.iliad.yaml
+++ b/works/homer.iliad.yaml
@@ -12,14 +12,14 @@ citation_system: homer-book-line
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q8275'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-05-31
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Iliad'
     source: 'wikidata:Q8275'
     status: candidate
@@ -34,6 +34,16 @@ resolvers:
     license: CC-BY-SA-4.0
     url: 'https://scaife.perseus.org/reader/urn:cts:greekLit:tlg0012.tlg001.perseus-grc2:{book}.{line}/'
     last_checked: '2026-06-03'
+  - provider: Perseus Digital Library
+    edition: 'Homer, Iliad (Monro & Allen, OCT)'
+    language: grc
+    access: open
+    license: CC-BY-SA-3.0
+    license_url: 'https://www.perseus.tufts.edu/hopper/opensource'
+    # Perseus accepts the short citation form "Hom. Il. {book}.{line}" in the
+    # `doc` query.
+    url: 'https://www.perseus.tufts.edu/hopper/text?doc=Hom.+Il.+{book}.{line}'
+    last_checked: '2026-06-09'
 
 # Per-book line counts (Allen OCT). The compiler expands these into
 # `1.1` … `24.804` — 15,693 references.
diff --git a/works/homer.odyssey.yaml b/works/homer.odyssey.yaml
index ea1a8b66..f4b1db0b 100644
--- a/works/homer.odyssey.yaml
+++ b/works/homer.odyssey.yaml
@@ -12,14 +12,14 @@ citation_system: homer-book-line
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q35160'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-05-31
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Odyssey'
     source: 'wikidata:Q35160'
     status: candidate
@@ -34,6 +34,16 @@ resolvers:
     license: CC-BY-SA-4.0
     url: 'https://scaife.perseus.org/reader/urn:cts:greekLit:tlg0012.tlg002.perseus-grc2:{book}.{line}/'
     last_checked: '2026-06-03'
+  - provider: Perseus Digital Library
+    edition: 'Homer, Odyssey (Murray, Loeb)'
+    language: grc
+    access: open
+    license: CC-BY-SA-3.0
+    license_url: 'https://www.perseus.tufts.edu/hopper/opensource'
+    # Perseus accepts the short citation form "Hom. Od. {book}.{line}" in the
+    # `doc` query.
+    url: 'https://www.perseus.tufts.edu/hopper/text?doc=Hom.+Od.+{book}.{line}'
+    last_checked: '2026-06-09'
 
 # Per-book line counts (Allen OCT). The compiler expands these into
 # `1.1` … `24.548` — 12,110 references.
diff --git a/works/laozi.daodejing.yaml b/works/laozi.daodejing.yaml
index b2a11a40..0b858ea9 100644
--- a/works/laozi.daodejing.yaml
+++ b/works/laozi.daodejing.yaml
@@ -12,14 +12,14 @@ citation_system: daodejing-chapter
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q134425'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Tao_Te_Ching'
     source: 'wikidata:Q134425'
     status: candidate
diff --git a/works/murasaki-shikibu.genji.yaml b/works/murasaki-shikibu.genji.yaml
index 862cb783..4e27f3a6 100644
--- a/works/murasaki-shikibu.genji.yaml
+++ b/works/murasaki-shikibu.genji.yaml
@@ -12,14 +12,14 @@ citation_system: genji-chapter
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q8269'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/The_Tale_of_Genji'
     source: 'wikidata:Q8269'
     status: candidate
@@ -94,6 +94,17 @@ resolvers:
         52: 'https://ja.wikisource.org/wiki/源氏物語/蜻蛉'
         53: 'https://ja.wikisource.org/wiki/源氏物語/手習'
         54: 'https://ja.wikisource.org/wiki/源氏物語/夢浮橋'
+  - provider: Project Gutenberg
+    edition: 'Japanese Literature (anthology incl. Genji Monogatari selections, transl. Suematsu Kenchō)'
+    language: en
+    access: open
+    license: 'public-domain'
+    # Coarse landing-page fallback: the Suematsu translation appears as a
+    # section of PG 19264 (Wilson, ed., *Japanese Literature*) with no
+    # per-chapter anchor, so the URL has no locator placeholders and
+    # resolves to the same page for every reference.
+    url: 'https://www.gutenberg.org/ebooks/19264'
+    last_checked: '2026-06-09'
 
 references_range:
   - kind: integer
diff --git a/works/new-testament.yaml b/works/new-testament.yaml
index 2781e59a..64fbfec4 100644
--- a/works/new-testament.yaml
+++ b/works/new-testament.yaml
@@ -9,14 +9,14 @@ citation_system: bible-book-chapter-verse
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q18813'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-05-31
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/New_Testament'
     source: 'wikidata:Q18813'
     status: candidate
diff --git a/works/plato.republic.yaml b/works/plato.republic.yaml
index 641248b1..d88a8aa6 100644
--- a/works/plato.republic.yaml
+++ b/works/plato.republic.yaml
@@ -12,14 +12,14 @@ citation_system: stephanus
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q123397'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Republic_(Plato)'
     source: 'wikidata:Q123397'
     status: candidate
@@ -32,12 +32,25 @@ resolvers:
     language: grc
     access: open
     license: CC-BY-SA-3.0
-    license_url: 'https://www.perseus.tufts.edu/hopper/about/copyright'
+    license_url: 'https://www.perseus.tufts.edu/hopper/opensource'
     # Perseus accepts the short citation form "Plat. Rep. {page}{section}" in
     # the `doc` query. Sub-line is not addressable; resolver lands on the
     # Stephanus section.
     url: 'https://www.perseus.tufts.edu/hopper/text?doc=Plat.+Rep.+{page}{section}'
     last_checked: '2026-06-03'
+  - provider: Project Gutenberg
+    edition: 'The Republic, transl. Benjamin Jowett'
+    language: en
+    access: open
+    license: 'public-domain'
+    # Coarse landing-page fallback: the Jowett translation is a single ebook
+    # with no Stephanus anchor, so the URL has no locator placeholders and
+    # resolves to the same page for every reference. The Perseus
+    # canonical-greekLit edition exposes only integer Stephanus pages under
+    # a book prefix (no `a`–`e` section letter), so a Scaife CTS URN cannot
+    # be derived from the Stephanus locator without losing the section.
+    url: 'https://www.gutenberg.org/ebooks/1497'
+    last_checked: '2026-06-09'
 
 # Republic spans 327a–621d; all five sections per page → 1,475 references.
 references_range:
diff --git a/works/tanakh.yaml b/works/tanakh.yaml
index 68f26b3d..6fea8243 100644
--- a/works/tanakh.yaml
+++ b/works/tanakh.yaml
@@ -9,14 +9,14 @@ citation_system: bible-book-chapter-verse
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q83367'
     source: manual-curation
     status: candidate
     created: 2026-05-31
     modified: 2026-05-31
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Tanakh'
     source: 'wikidata:Q83367'
     status: candidate
diff --git a/works/wittgenstein.philosophical-investigations.yaml b/works/wittgenstein.philosophical-investigations.yaml
index e420f0d0..7b553088 100644
--- a/works/wittgenstein.philosophical-investigations.yaml
+++ b/works/wittgenstein.philosophical-investigations.yaml
@@ -13,14 +13,14 @@ citation_system: integer-section
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q772496'
     source: manual-curation
     status: candidate
     created: 2026-06-02
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Philosophical_Investigations'
     source: manual-curation
     status: candidate
diff --git a/works/wittgenstein.tractatus.yaml b/works/wittgenstein.tractatus.yaml
index 7e041569..faff4a39 100644
--- a/works/wittgenstein.tractatus.yaml
+++ b/works/wittgenstein.tractatus.yaml
@@ -13,14 +13,14 @@ citation_system: tractatus-proposition
 
 mappings:
   - relation: exactMatch
-    target_kind: wikidata
+    conforms_to: 'https://www.wikidata.org/'
     identifier: 'https://www.wikidata.org/entity/Q655717'
     source: manual-curation
     status: candidate
     created: 2026-06-02
     modified: 2026-06-02
   - relation: closeMatch
-    target_kind: wikipedia
+    conforms_to: 'https://en.wikipedia.org/'
     identifier: 'https://en.wikipedia.org/wiki/Tractatus_Logico-Philosophicus'
     source: manual-curation
     status: candidate