Cusp coefficient transfer for every L ≥ 10: birth-marginal floor and SIDE24 relative error below 3e-105

.github/workflows/cusp-torus-transfer.yml

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+name: Cusp torus transfer exact checks
+
+'on':
+  pull_request:
+    paths:
+      - 'frontiers/cusp_torus_transfer_20261001/**'
+      - '.github/workflows/cusp-torus-transfer.yml'
+      - 'imports/lifetime_parent_20260925/UNIFORM_MATRIX_CAP_AND_LIFETIME.md'
+      - 'frontiers/cusp_second_order_20261001/PROOF.md'
+      - 'frontiers/cusp_coefficient_certified_20261001/NOTE.md'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  exact-and-source:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
+        with:
+          persist-credentials: false
+          fetch-depth: 0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065
+        with:
+          python-version: '3.11.16'
+      - name: Fetch exact historical source commits
+        run: |
+          set -euo pipefail
+          git fetch --no-tags origin 3e0a91b69892b9717564c592e7a966492a81566a
+          git fetch --no-tags origin 826b8be512e86f2de73c33d6ac7a76908dc2e0e6
+          git fetch --no-tags origin 3ac897a16d79d6c37aed29d59b71966058e75a00
+      - name: Authenticate sources and replay exact controls
+        env:
+          PYTHONDONTWRITEBYTECODE: '1'
+          GIT_NO_REPLACE_OBJECTS: '1'
+        run: |
+          set -euo pipefail
+          cd frontiers/cusp_torus_transfer_20261001
+          python -B -S verify_sources.py
+          python -B -S -m unittest discover -v
+          python -B -O -S -m unittest discover -v
+          python -B -S transfer.py > "$RUNNER_TEMP/cusp-transfer-normal.json"
+          python -B -O -S transfer.py > "$RUNNER_TEMP/cusp-transfer-optimized.json"
+          cmp RESULTS.json "$RUNNER_TEMP/cusp-transfer-normal.json"
+          cmp RESULTS.json "$RUNNER_TEMP/cusp-transfer-optimized.json"
+          python -B -S verify_sources.py
+          git diff --exit-code

frontiers/cusp_torus_transfer_20261001/MANIFEST.json

@@ -0,0 +1,61 @@
+{
+  "schema": 1,
+  "scientific_effect": "NONE",
+  "review_status": "NONAUTHOR_REVIEW_OPEN",
+  "files": [
+    {
+      "path": "PROOF.md",
+      "bytes": 15534,
+      "sha256": "6b818bdc34c6908505c6b2ad65584f740254a8525ddc8a45197d560386243bb0",
+      "git_blob": "de3d85fdcf65487adc982bae7318246c1b8f016c"
+    },
+    {
+      "path": "README.md",
+      "bytes": 3334,
+      "sha256": "1cec04720d6b70a06222710e7ae6016c42458f4a1d47056f47c79ee9d6e3eed2",
+      "git_blob": "b184c57bccd3f9c5082cc900c3668059017db5ac"
+    },
+    {
+      "path": "RESULTS.json",
+      "bytes": 2955,
+      "sha256": "1ca1b76e5ad6a55083fb72b533106311e751aafd9f9e4c3173de413f3aa66b43",
+      "git_blob": "f044f2b2da19c756a8aa14831f7aa85e03e018a5"
+    },
+    {
+      "path": "SOURCES.json",
+      "bytes": 1384,
+      "sha256": "b6606206be695451e65b7e9ae19d75f81d7048f0b37b5bc48dd3e8789d06d152",
+      "git_blob": "6c5ddcf37bb736b233f3c3a63e80984ca08fd7ea"
+    },
+    {
+      "path": "VALIDATION.md",
+      "bytes": 3366,
+      "sha256": "5e94c2befb7ef1d22bc4aefe519ed80391119cfb9f78a035b2ca77a9920b89e7",
+      "git_blob": "9d131d7f3c58281ee76a4b6f59d87efa0e29fed5"
+    },
+    {
+      "path": "test_sources.py",
+      "bytes": 4636,
+      "sha256": "81ca50dc51a852723a7c57ef9384bd2841f6c88bc4c0d1aedc2522f6901dc818",
+      "git_blob": "30584172a156f8a154d06d073076f6adacf90af7"
+    },
+    {
+      "path": "test_transfer.py",
+      "bytes": 8782,
+      "sha256": "d11d5bf6a00de387044097c490781a35466b81516822c653864dd8aa20ae3cb5",
+      "git_blob": "9be8cf7c03e46e56b197bb7e8e9bc8646023307c"
+    },
+    {
+      "path": "transfer.py",
+      "bytes": 9677,
+      "sha256": "49acaca69d437aebed4547a802430b4b2906d5c96827dabb4b622e96f3190b32",
+      "git_blob": "de48ca6c7e3637001b510d9b9aab0d789a76de70"
+    },
+    {
+      "path": "verify_sources.py",
+      "bytes": 4494,
+      "sha256": "6fa7c165aa380f66ca253ebbe5f72d9e40d0e9bc4e0fb362208134f87d321b9f",
+      "git_blob": "175e676f8d04f8b01e3c5d02d5fb21a8bb065cdb"
+    }
+  ]
+}