eumemic · Oct 9, 2026 · Oct 9, 2026
diff --git a/SOURCES.json b/SOURCES.json
@@ -500,5 +500,36 @@
     ],
     "scope": "Conditional on retained analytic, uniform-recursion and fixed-tape contracts; complete local paired-cube schedule, exact core sharing and scalar charge supplied in the proof.",
     "curation": "Selected paired-coordinate cube only, compact frozen carrier arcs and bit subset, exact suppliers and assembly. Excludes fallback shared_core results, paired-five motifs, other candidate graphs, search screens and PDFs."
+  },
+  "paired_cube_h21_bit_extension": {
+    "contributor": "eumemic",
+    "assistance": "Prepared with Anthropic Claude assistance.",
+    "predecessor_pr": 144,
+    "predecessor_commit": "c8b22bc5c10dba497ac25804e27d9647d818e2ff",
+    "kappa": "5108289/10000000000",
+    "proof": "notes/paired-cube-note.tex",
+    "certificate": "certificates/paired-cube-network.json",
+    "bit_word": "references/paired-cube/fib-bit-h21/SOURCE.json",
+    "change": "PR144 paired cubes at p=11 (h=22) with frozen carrier arcs, and a hash-pinned h=21 bit word in PR97 format with a PR144-style gauge subset; PR144 scripts, checks and assembly otherwise unchanged.",
+    "adopted": [
+      {
+        "pr": 144,
+        "contributor": "icekylinx",
+        "commit": "c8b22bc5c10dba497ac25804e27d9647d818e2ff",
+        "role": "Paired-cube complex construction, shared cores, bit gauge-subset rule, finite bridge and assembly."
+      },
+      {
+        "pr": 97,
+        "contributor": "Zhihao Chen (jacklightChen)",
+        "commit": "e15350b66e4bf796153a68c240a6cc1b788abe3e",
+        "role": "Unchanged frozen-word reader deferred.py and literal frame ledger, run on the h=21 word."
+      },
+      {
+        "contributor": "Swapnil Jain",
+        "commit": "741e7aa078392553815df7926ee17ac5e25a8c38",
+        "role": "Round-seven bit producer lineage (PR62 interval strips) and checkers, run on the h=21 word."
+      }
+    ],
+    "scope": "Conditional on the retained PR144 analytic, uniform-recursion and fixed-tape contracts."
   }
 }
diff --git a/certificates/paired-cube-bit-input.json b/certificates/paired-cube-bit-input.json
@@ -1,105 +1,99 @@
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diff --git a/certificates/paired-cube-complex-input.json b/certificates/paired-cube-complex-input.json
@@ -1,86 +1,82 @@
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