diff --git a/.github/workflows/ci-expanded.yml b/.github/workflows/ci-expanded.yml
index 17b5cb0a..94eb7f25 100644
--- a/.github/workflows/ci-expanded.yml
+++ b/.github/workflows/ci-expanded.yml
@@ -7,15 +7,36 @@
 
 name: Expanded Continuous Integration
 
-on: [ workflow_dispatch ]
+on:
+  workflow_dispatch:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.repository_owner == 'libbitcoin' && (github.event.pull_request.number || github.run_id) || github.ref }}
   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:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -404,6 +425,8 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -411,7 +434,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-system
+
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -419,7 +452,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-database
+
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -427,13 +470,23 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-network
+
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
           path: 'libbitcoin-node'
           repository: ${{ github.repository }}
 
+
       - name: Prepare toolchain [linux]
         if: ${{ startsWith(matrix.image, 'ubuntu') }}
         shell: bash
@@ -557,6 +610,8 @@ jobs:
           if-no-files-found: warn
 
   cmake:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -945,6 +1000,8 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -952,7 +1009,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-system
+
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -960,7 +1027,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-database
+
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -968,13 +1045,23 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-network
+
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
           path: 'libbitcoin-node'
           repository: ${{ github.repository }}
 
+
       - name: Prepare toolchain [linux]
         if: ${{ startsWith(matrix.image, 'ubuntu') }}
         shell: bash
@@ -1098,6 +1185,8 @@ jobs:
           if-no-files-found: warn
 
   presets:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -1112,7 +1201,7 @@ 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"
@@ -1123,7 +1212,7 @@ 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"
@@ -1134,7 +1223,7 @@ 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"
@@ -1145,7 +1234,7 @@ 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"
@@ -1155,7 +1244,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1165,7 +1254,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1175,7 +1264,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1185,7 +1274,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1195,7 +1284,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1205,7 +1294,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1215,7 +1304,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1225,7 +1314,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1235,7 +1324,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1245,7 +1334,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1255,7 +1344,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1265,7 +1354,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1275,7 +1364,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -1285,7 +1374,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-shared"
@@ -1295,7 +1384,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-release-static"
@@ -1305,7 +1394,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-shared"
@@ -1316,7 +1405,7 @@ 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"
@@ -1327,7 +1416,7 @@ 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"
@@ -1338,7 +1427,7 @@ 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"
@@ -1349,7 +1438,7 @@ 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"
@@ -1360,7 +1449,7 @@ 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"
@@ -1371,7 +1460,7 @@ 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"
@@ -1382,7 +1471,7 @@ 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"
@@ -1393,7 +1482,7 @@ jobs:
             package: "g++-16 gcc-16"
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
     runs-on: ${{ matrix.image }}
 
@@ -1414,6 +1503,8 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1421,7 +1512,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-system
+
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1429,7 +1530,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-database
+
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1437,13 +1548,23 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-network
+
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
           path: 'libbitcoin-node'
           repository: ${{ github.repository }}
 
+
       - name: Prepare toolchain [linux]
         if: ${{ startsWith(matrix.image, 'ubuntu') }}
         shell: bash
@@ -1562,6 +1683,8 @@ jobs:
           if-no-files-found: warn
 
   msvc:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -1610,6 +1733,8 @@ jobs:
           msbuild-architecture: x64
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1617,7 +1742,16 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: powershell
+        run: |
+          Remove-Item -Path ${{ github.workspace }}\libbitcoin-system -Recurse -Force -ErrorAction SilentlyContinue
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1625,7 +1759,16 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: powershell
+        run: |
+          Remove-Item -Path ${{ github.workspace }}\libbitcoin-database -Recurse -Force -ErrorAction SilentlyContinue
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -1633,7 +1776,15 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: powershell
+        run: |
+          Remove-Item -Path ${{ github.workspace }}\libbitcoin-network -Recurse -Force -ErrorAction SilentlyContinue
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d6439065..c750e0e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,15 +7,39 @@
 
 name: Continuous Integration
 
-on: [ pull_request, push, workflow_dispatch ]
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, closed]
+  push:
+  workflow_dispatch:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.repository_owner == 'libbitcoin' && (github.event.pull_request.number || github.run_id) || github.ref }}
   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:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -97,6 +121,8 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -104,7 +130,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-system
+
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -112,7 +148,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-database
+
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -120,13 +166,23 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-network
+
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
           path: 'libbitcoin-node'
           repository: ${{ github.repository }}
 
+
       - name: Prepare toolchain [linux]
         if: ${{ startsWith(matrix.image, 'ubuntu') }}
         shell: bash
@@ -250,6 +306,8 @@ jobs:
           if-no-files-found: warn
 
   cmake:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -331,6 +389,8 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -338,7 +398,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-system
+
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -346,7 +416,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-database
+
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -354,13 +434,23 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-network
+
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
           path: 'libbitcoin-node'
           repository: ${{ github.repository }}
 
+
       - name: Prepare toolchain [linux]
         if: ${{ startsWith(matrix.image, 'ubuntu') }}
         shell: bash
@@ -484,6 +574,8 @@ jobs:
           if-no-files-found: warn
 
   presets:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -497,7 +589,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
           - image: ubuntu-24.04
             preset: "nix-gnu-debug-static"
@@ -507,7 +599,7 @@ jobs:
             coverage: ""
             boost: "--build-boost"
             secp256k1: "--build-secp256k1"
-            options: ""
+            options: "--build-skip-tests"
 
     runs-on: ${{ matrix.image }}
 
@@ -528,6 +620,8 @@ jobs:
           fi
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -535,7 +629,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-system
+
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -543,7 +647,17 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-database
+
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -551,13 +665,23 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: bash
+        run: |
+          rm -rf ${{ github.workspace }}/libbitcoin-network
+
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
           path: 'libbitcoin-node'
           repository: ${{ github.repository }}
 
+
       - name: Prepare toolchain [linux]
         if: ${{ startsWith(matrix.image, 'ubuntu') }}
         shell: bash
@@ -676,6 +800,8 @@ jobs:
           if-no-files-found: warn
 
   msvc:
+    if: github.event_name != 'pull_request' || github.event.action != 'closed'
+
     strategy:
       fail-fast: false
 
@@ -712,6 +838,8 @@ jobs:
           msbuild-architecture: x64
 
       - name: Checkout repository [libbitcoin-system]
+        id: checkout-libbitcoin-system
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -719,7 +847,16 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-system
 
+      - name: Checkout repository [libbitcoin-system] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-system.outcome == 'failure'
+        shell: powershell
+        run: |
+          Remove-Item -Path ${{ github.workspace }}\libbitcoin-system -Recurse -Force -ErrorAction SilentlyContinue
+
       - name: Checkout repository [libbitcoin-database]
+        id: checkout-libbitcoin-database
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -727,7 +864,16 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-database
 
+      - name: Checkout repository [libbitcoin-database] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-database.outcome == 'failure'
+        shell: powershell
+        run: |
+          Remove-Item -Path ${{ github.workspace }}\libbitcoin-database -Recurse -Force -ErrorAction SilentlyContinue
+
       - name: Checkout repository [libbitcoin-network]
+        id: checkout-libbitcoin-network
+        continue-on-error: true
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
@@ -735,7 +881,15 @@ jobs:
           ref: ${{ steps.get-branch.outputs.branch }}
           repository: ${{ github.repository_owner }}/libbitcoin-network
 
+      - name: Checkout repository [libbitcoin-network] cleanup on failure
+        continue-on-error: true
+        if: steps.checkout-libbitcoin-network.outcome == 'failure'
+        shell: powershell
+        run: |
+          Remove-Item -Path ${{ github.workspace }}\libbitcoin-network -Recurse -Force -ErrorAction SilentlyContinue
+
       - name: Checkout repository [libbitcoin-node]
+        id: checkout-libbitcoin-node
         uses: actions/checkout@v6
         with:
           fetch-depth: 1
diff --git a/.gitignore b/.gitignore
index 9663a64c..497f8205 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,11 @@
 # python bytecode
 *.pyc
 
+# store
+*.bin
+*.head
+*.data
+
 # gnu
 .deps
 Makefile