diff --git a/.github/workflows/ci-expanded.yml b/.github/workflows/ci-expanded.yml
index fb8a7840d..54ee11560 100644
--- a/.github/workflows/ci-expanded.yml
+++ b/.github/workflows/ci-expanded.yml
@@ -14,6 +14,24 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  information:
+    runs-on: ubuntu-latest
+
+    env:
+      CONCURRENCY_GROUP: ${{ github.workflow }}-${{ github.repository_owner == 'libbitcoin' && (github.event.pull_request.number || github.run_id) || github.ref }}
+
+    steps:
+        - name: state
+          run: |
+            echo "group    : $CONCURRENCY_GROUP"
+            echo "owner    : ${{ github.repository_owner }}"
+            echo "pr       : ${{ github.event.pull_request }}"
+            echo "pr #     : ${{ github.event.pull_request.number }}"
+            echo "run_id   : ${{ github.run_id }}"
+            echo "ref      : ${{ github.ref }}"
+            echo "base_ref : ${{ github.base_ref }}"
+            echo "head_ref : ${{ github.head_ref }}"
+
 
   gnu:
     strategy:
@@ -404,6 +422,7 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -911,6 +930,7 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1044,7 +1064,7 @@ jobs:
             package: "clang-19 clang++-19"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1055,7 +1075,7 @@ jobs:
             package: "clang-19 clang++-19"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1066,7 +1086,7 @@ jobs:
             package: "clang-19 clang++-19"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1077,7 +1097,7 @@ jobs:
             package: "clang-19 clang++-19"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1087,7 +1107,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1097,7 +1117,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1107,7 +1127,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1117,7 +1137,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1127,7 +1147,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1137,7 +1157,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1147,7 +1167,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1157,7 +1177,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1167,7 +1187,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1177,7 +1197,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1187,7 +1207,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1197,7 +1217,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1207,7 +1227,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1217,7 +1237,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1227,7 +1247,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1237,7 +1257,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1248,7 +1268,7 @@ jobs:
             package: "g++-15 gcc-15"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1259,7 +1279,7 @@ jobs:
             package: "g++-15 gcc-15"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1270,7 +1290,7 @@ jobs:
             package: "g++-15 gcc-15"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1281,7 +1301,7 @@ jobs:
             package: "g++-15 gcc-15"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1292,7 +1312,7 @@ jobs:
             package: "g++-16 gcc-16"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1303,7 +1323,7 @@ jobs:
             package: "g++-16 gcc-16"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1314,7 +1334,7 @@ jobs:
             package: "g++-16 gcc-16"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1325,7 +1345,7 @@ jobs:
             package: "g++-16 gcc-16"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
     runs-on: ${{ matrix.image }}
 
@@ -1346,6 +1366,7 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1508,6 +1529,7 @@ jobs:
           msbuild-architecture: x64
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bf9d13b0d..108a7839b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,6 +14,24 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  information:
+    runs-on: ubuntu-latest
+
+    env:
+      CONCURRENCY_GROUP: ${{ github.workflow }}-${{ github.repository_owner == 'libbitcoin' && (github.event.pull_request.number || github.run_id) || github.ref }}
+
+    steps:
+        - name: state
+          run: |
+            echo "group    : $CONCURRENCY_GROUP"
+            echo "owner    : ${{ github.repository_owner }}"
+            echo "pr       : ${{ github.event.pull_request }}"
+            echo "pr #     : ${{ github.event.pull_request.number }}"
+            echo "run_id   : ${{ github.run_id }}"
+            echo "ref      : ${{ github.ref }}"
+            echo "base_ref : ${{ github.base_ref }}"
+            echo "head_ref : ${{ github.head_ref }}"
+
 
   gnu:
     strategy:
@@ -97,6 +115,7 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -297,6 +316,7 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -429,7 +449,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -439,7 +459,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
     runs-on: ${{ matrix.image }}
 
@@ -460,6 +480,7 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -610,6 +631,7 @@ jobs:
           msbuild-architecture: x64
 
       - name: Checkout repository [libbitcoin-system]
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1