diff --git a/scripts/download-qwen38-bf16.sh b/scripts/download-qwen38-bf16.sh
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+#!/usr/bin/env bash
+# download-qwen38-bf16.sh — RUNS ON DANKSERVER. Fetch and verify the vendor
+# BF16 checkpoint Qwen/Qwen3.8-Flash-Next: the source the five-bit campaign
+# converts, and the source the KLD reference is recorded from.
+#
+# Why the base and not a finetune: the campaign converts to compare against the
+# publisher's own iq4r container, and that container was built from this
+# checkpoint. Base-in, base-out; anything else confounds the gate. (The
+# predecessor campaign ran ukisai/Swift-1.5-Qwen3.8-Flash-Next-BF16, whose key
+# set is identical to this repo's but whose weights are not — none of its
+# calibration grams, KLD reference or protected list carries over.)
+#
+# Why re-fetch instead of reusing: every BF16 copy of this family was destroyed
+# in the 2026-10-15 storage purge — only the 113.6 GiB served .rad survived.
+# 335.3 GiB of safetensors, 131 shards, ungated (the predecessor campaign
+# verified the key set against this repo, so no gate letter is needed).
+#
+# Verification is four gates deep, because the failure this repo actually lived
+# through is a fetch that reported success: `curl -o FILE URL` exits 0 on an
+# HTTP 401/403 and writes the error body as the artifact — three shards of
+# identical tiny size and a cheerful DONE in 20 seconds for 104 GiB.
+#
+#   1. shard census: the file count must equal the expected shard count, so a
+#      partially fetched fragment tree (the .partNofM trap) cannot pass.
+#   2. per-shard completeness, from the shard's OWN safetensors header: the
+#      header declares where the tensor data ends, so every shard's true size is
+#      known offline. A torn tail is named here, by file, instead of surfacing
+#      as a load error five hours later.
+#   3. index coverage: every shard model.safetensors.index.json references
+#      exists and is named.
+#   4. total bytes against the number the Hub declared, then, unless --no-hub,
+#      every file's sha256 against the Hub's LFS record — including the shards
+#      already on disk, so a previous partial download is never trusted.
+#
+# The token never enters a command line (the 2026-09-16 leak law): it is read
+# into HF_TOKEN in the environment, where a local process listing is the only
+# reader. This repo is ungated, so the fetch simply runs without one when no
+# token file exists. scripts/hfget.sh is curl+jq only — no Python, no venv, no
+# hf_transfer — and it drops the pickle/ONNX weight duplicates by itself.
+#
+# usage: download-qwen38-bf16.sh [--fetch] [--no-hub] [--dir DIR]
+#                                [--shards N] [--bytes B] [--repo ID]
+#   --fetch    download first (resumable: re-run to continue), then verify
+#   --no-hub   skip the Hub-side sha256 sweep; the other gates always run
+# exit: 0 verified, 1 verification failed, 2 environment / usage error
+set -euo pipefail
+
+REPO="${FRANK_QWEN38_HF_REPO:-Qwen/Qwen3.8-Flash-Next}"
+LOCAL_DIR="${FRANK_QWEN38_CKPT:-/home/dank/models/Qwen3.8-Flash-Next}"
+# Hub census of 2026-10-27: 144 files, 131 of them .safetensors, together
+# 360,023,351,514 bytes; the shards alone are 360,000,192,888. This gate counts
+# shards only, so a config file edited on the Hub cannot fail it.
+EXPECTED_SHARDS="${FRANK_QWEN38_SHARDS:-131}"
+EXPECTED_BYTES="${FRANK_QWEN38_BYTES:-360000192888}"
+MIN_FREE_MIB="${FRANK_QWEN38_MIN_FREE_MIB:-350000}"
+
+FETCH=0
+HUB=1
+while [ $# -gt 0 ]; do
+    case "$1" in
+        --fetch) FETCH=1 ;;
+        --no-hub) HUB=0 ;;
+        --dir)    LOCAL_DIR="$2"; shift ;;
+        --shards) EXPECTED_SHARDS="$2"; shift ;;
+        --bytes)  EXPECTED_BYTES="$2"; shift ;;
+        --repo)   REPO="$2"; shift ;;
+        *) echo "usage: ${0##*/} [--fetch] [--no-hub] [--dir DIR] [--shards N] [--bytes B] [--repo ID]" >&2
+           exit 2 ;;
+    esac
+    shift
+done
+
+SELF_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+FAILS=0
+note() { echo "$@"; FAILS=$((FAILS + 1)); }
+
+if [ "$FETCH" = "1" ]; then
+    # Every fetch gate is a hard stop: skipping the download silently and then
+    # verifying a half tree is how a campaign ships a stale payload.
+    HFGET="$SELF_DIR/hfget.sh"
+    if [ ! -f "$HFGET" ]; then
+        echo "REFUSED: the fetch helper is not here: $HFGET" >&2
+        exit 2
+    fi
+    if ! command -v jq >/dev/null 2>&1; then
+        echo "REFUSED: hfget.sh needs jq on PATH" >&2
+        exit 2
+    fi
+    mkdir -p "$LOCAL_DIR"
+    # The campaign's peak-disk law starts at the fetch: the checkpoint and the
+    # reference container built from it are ~335 GiB each, and a tree that does
+    # not fit is discovered hours into a transfer, when it costs the most.
+    free_mib=$(df -m --output=avail "$LOCAL_DIR" | tail -1 | tr -dc '0-9')
+    if [ "${free_mib:-0}" -lt "$MIN_FREE_MIB" ]; then
+        echo "REFUSED: $free_mib MiB free at $LOCAL_DIR; the fetch wants $MIN_FREE_MIB MiB free" >&2
+        echo "         (retire the peak-disk predecessors first — nothing is downloaded, so" >&2
+        echo "         nothing is left half-written)" >&2
+        exit 2
+    fi
+    echo "fetch: $REPO -> $LOCAL_DIR ($free_mib MiB free)"
+    if [ -z "${HF_TOKEN:-}" ]; then
+        CREDSTORE="$HOME/.config/huggingface/credentials/https://huggingface.co"
+        if [ -f "$CREDSTORE" ]; then
+            HF_TOKEN="$(awk '/^ OauthToken: / {print $2; exit}' "$CREDSTORE")"
+        elif [ -f "$HOME/.cache/huggingface/token" ]; then
+            # The legacy single-line token file the hub library writes.
+            HF_TOKEN="$(tr -d '[:space:]' < "$HOME/.cache/huggingface/token")"
+        elif [ -f "$HOME/.hf_token" ]; then
+            HF_TOKEN="$(tr -d '[:space:]' < "$HOME/.hf_token")"
+        fi
+    fi
+    if [ -n "${HF_TOKEN:-}" ]; then
+        export HF_TOKEN
+    fi
+    bash "$HFGET" "$REPO" "$LOCAL_DIR" main
+    unset HF_TOKEN
+fi
+
+if [ ! -d "$LOCAL_DIR" ]; then
+    echo "REFUSED: $LOCAL_DIR does not exist (run with --fetch, or pass --dir)" >&2
+    exit 1
+fi
+INDEX="$LOCAL_DIR/model.safetensors.index.json"
+if [ ! -f "$INDEX" ]; then
+    echo "REFUSED: $INDEX is missing — the checkpoint tree is not addressable without it" >&2
+    exit 1
+fi
+
+echo "== gate 1: shard census ($LOCAL_DIR)"
+SHARDS=$(find "$LOCAL_DIR" -maxdepth 1 -type f -name '*.safetensors' | wc -l)
+if [ "$SHARDS" != "$EXPECTED_SHARDS" ]; then
+    note "FAIL SHARD_COUNT: $SHARDS safetensors files on disk, expected $EXPECTED_SHARDS"
+else
+    echo "  ok: $SHARDS shards"
+fi
+
+echo "== gate 2: every shard is whole, judged by its own header"
+# A safetensors file is [u64 header length][JSON header][tensor data]. The JSON
+# declares where the data ends, so the file's true size is computable offline:
+# 8 + header + the largest end offset. Truncation and error bodies both fall
+# here, and each is reported with the file that caused it.
+while IFS= read -r f; do
+    state=$(python3 - "$f" <<'PY'
+import json, os, struct, sys
+path = sys.argv[1]
+size = os.path.getsize(path)
+try:
+    with open(path, "rb") as fh:
+        (hlen,) = struct.unpack("<Q", fh.read(8))
+        if hlen == 0 or hlen > size:
+            print("NOT_SAFETENSORS")
+            raise SystemExit
+        header = json.loads(fh.read(hlen))
+except Exception:
+    print("NOT_SAFETENSORS")
+    raise SystemExit
+if not header:
+    print("NOT_SAFETENSORS")
+    raise SystemExit
+end = max((v["data_offsets"][1] for v in header.values()
+           if isinstance(v, dict) and "data_offsets" in v), default=0)
+want = 8 + hlen + end
+print("OK" if want == size else f"TRUNCATED want={want} have={size}")
+PY
+)
+    case "$state" in
+        OK) ;;
+        NOT_SAFETENSORS*) note "FAIL NOT_SAFETENSORS: $(basename "$f") is not a safetensors file (an error body written as an artifact?)" ;;
+        TRUNCATED*) note "FAIL TRUNCATED: $(basename "$f") $state" ;;
+    esac
+done < <(find "$LOCAL_DIR" -maxdepth 1 -type f -name '*.safetensors' | sort)
+if [ "$FAILS" -eq 0 ]; then
+    echo "  ok: every shard's data extent matches its size on disk"
+fi
+
+echo "== gate 3: the index's shards are all present"
+INDEX_SHARDS=$(python3 - "$INDEX" <<'PY'
+import json, sys
+map_ = json.load(open(sys.argv[1]))["weight_map"]
+print("\n".join(sorted(set(map_.values()))))
+PY
+)
+while IFS= read -r name; do
+    [ -n "$name" ] || continue
+    if [ ! -f "$LOCAL_DIR/$name" ]; then
+        note "FAIL MISSING: $name is named by the index and is not on disk"
+    fi
+done <<< "$INDEX_SHARDS"
+if [ "$FAILS" -eq 0 ]; then
+    echo "  ok: $(printf '%s\n' "$INDEX_SHARDS" | grep -c .) referenced shards on disk"
+fi
+
+echo "== gate 4: total bytes vs the Hub's declaration"
+TOTAL=$(find "$LOCAL_DIR" -maxdepth 1 -type f -name '*.safetensors' -printf '%s\n' | awk '{s+=$1} END{print s+0}')
+if [ "$TOTAL" != "$EXPECTED_BYTES" ]; then
+    note "FAIL TOTAL_BYTES: shards total $TOTAL bytes, expected $EXPECTED_BYTES"
+else
+    echo "  ok: $TOTAL bytes"
+fi
+
+if [ "$HUB" = "1" ]; then
+    echo "== gate 5: every file's sha256 vs the Hub's LFS record"
+    # size = file size; lfs.sha256 = sha256 of the file itself (LFS or not).
+    TMPD="$(mktemp -d)"
+    trap 'rm -rf "$TMPD"' EXIT
+    MANIFEST="$TMPD/tree.json"
+    PLAN="$TMPD/plan"
+    curl -sf "https://huggingface.co/api/models/$REPO/tree/main?recursive=true&expand=true" \
+        -o "$MANIFEST" || { echo "FAIL: the Hub API call failed — refusing to report success" >&2; exit 1; }
+    python3 - "$MANIFEST" > "$PLAN" <<'PY'
+import json, sys
+for e in json.load(open(sys.argv[1])):
+    if e.get("type") != "file":
+        continue
+    sha = (e.get("lfs") or {}).get("sha256") or e.get("sha") or ""
+    if sha:
+        print(e["path"], e["size"], sha)
+PY
+    BAD=0
+    while read -r rel size sha; do
+        [ -n "${rel:-}" ] || continue
+        if [ ! -f "$LOCAL_DIR/$rel" ]; then
+            note "FAIL MISSING: $rel is on the Hub and not on disk"
+            continue
+        fi
+        have=$(stat -c %s "$LOCAL_DIR/$rel")
+        if [ "$have" != "$size" ]; then
+            note "FAIL SIZE: $rel is $have bytes, Hub says $size"
+            continue
+        fi
+        got=$(sha256sum "$LOCAL_DIR/$rel" | awk '{print $1}')
+        if [ "$got" != "$sha" ]; then
+            note "FAIL SHA256: $rel got $got want $sha"
+            BAD=$((BAD + 1))
+        fi
+    done < "$PLAN"
+    if [ "$BAD" -eq 0 ] && [ "$FAILS" -eq 0 ]; then
+        echo "  ok: sha256 matches for every file"
+    fi
+    rm -rf "$TMPD"
+    trap - EXIT
+fi
+
+if [ "$FAILS" -gt 0 ]; then
+    echo "VERIFY_FAILED: $FAILS problem(s) in $LOCAL_DIR" >&2
+    exit 1
+fi
+echo "VERIFY_OK: $SHARDS shards, $TOTAL bytes of safetensors in $LOCAL_DIR"
+echo "NEXT: build the BF16 reference container with scripts/build-qwen38-bf16-rad.sh"