diff --git a/results/v0.0.1/20260101/x86_64/summary.json b/results/v0.0.1/20260101/x86_64/summary.json
new file mode 100644
index 0000000..477a0be
--- /dev/null
+++ b/results/v0.0.1/20260101/x86_64/summary.json
@@ -0,0 +1,6 @@
+{
+  "schema_version": "4.1",
+  "host_arch_pair": "linux-amd64",
+  "benchmarks": {},
+  "_note": "deliberately malformed cell, control for docs#67 -- never merge"
+}
diff --git a/results/v1.5.8/20260829/x86_64/env.json b/results/v1.5.8/20260829/x86_64/env.json
index fec6876..bd46bf0 100644
--- a/results/v1.5.8/20260829/x86_64/env.json
+++ b/results/v1.5.8/20260829/x86_64/env.json
@@ -1,7 +1,7 @@
 {
   "schema_version": "env/1",
   "version": "v1.5.8",
-  "arch": "x86_64",
+  "arch": "arm64",
   "date": "20260829",
   "run_id": "run-1",
   "git_sha": "v1.5.8",
@@ -25,4 +25,4 @@
     "loadgen_version": "v1.4.13",
     "celeris_version": "v1.5.8"
   }
-}
\ No newline at end of file
+}