phase7 P0 r3: pin train_3a fetch to lineage repo URL matching the sha recorded in eval_v1v2.json

phase7/p0_bootstrap.py

@@ -13,12 +13,18 @@ Also writes manifests.json: pinned revisions (git SHAs) of every repo in the sui
 sha256 of every eval parquet, train_3a.py sha (verified), eval_v1v2.json sha, and a
 suite_hash over the whole manifest. Locked-split read-once discipline: this job reads only
 already-published aggregates; the locked split itself is not touched.
+
+train_3a provenance note: eval_v1v2.json pins train3a_sha256=5c8c0f0c…, which is the file as
+fetched from the LINEAGE repo (minicpm4-pcap-kev-workbench). The renamed sharky-workbench
+copy hashes differently (4a34439d…) — the rename is not byte-identical for this file, so the
+pinned lineage URL is the authoritative fetch target.
 """
 import hashlib, json, os, urllib.request
 import numpy as np
 from huggingface_hub import HfApi, hf_hub_download
 
 WORKBENCH = "luispoveda93/sharky-workbench"
+WORKBENCH_LINEAGE = "luispoveda93/minicpm4-pcap-kev-workbench"
 STATES = "luispoveda93/sharky-triage-states"
 DEC = ["benign", "suspicious", "malicious"]
 SHA3A = "5c8c0f0ca3e88b9d655ae80a9cfe48a2a289d35cecd7695668c4579f7a8ccb5b"
@@ -29,9 +35,13 @@ os.makedirs(OUT, exist_ok=True)
 rng = np.random.default_rng(SEED)
 api = HfApi()
 
-# --- provenance: train_3a.py byte-exactness (the project's pinned-script protocol)
+# --- provenance: train_3a.py byte-exactness (the project's pinned-script protocol).
+# Fetch from the lineage repo (the URL phase6 actually used) and assert the recorded sha.
 src = urllib.request.urlopen(
-    "https://huggingface.co/datasets/" + WORKBENCH + "/resolve/main/phase3a/train_3a.py").read()
+    "https://huggingface.co/datasets/" + WORKBENCH_LINEAGE + "/resolve/main/phase3a/train_3a.py"
+    if False else
+    "https://huggingface.co/datasets/luispoveda93/minicpm4-pcap-kev-workbench/resolve/main/phase3a/train_3a.py"
+).read()
 got = hashlib.sha256(src).hexdigest()
 assert got == SHA3A, f"train_3a sha mismatch: {got}"
 print("TRAIN3A_SHA_OK", got, flush=True)
@@ -115,6 +125,8 @@ manifest = {
                             "record-clustered paired bootstrap arrives with the GPU pass)"},
     "pinned": {
         "train_3a_sha256": got,
+        "train_3a_fetched_from": "https://huggingface.co/datasets/luispoveda93/minicpm4-pcap-kev-workbench/resolve/main/phase3a/train_3a.py",
+        "train_3a_renamed_copy_sha256": "4a34439dfad008f49f5f830d5bdbeaea6522eac90fbf43065798a46a919bd7d7",
         "eval_v1v2_sha256": ev_sha,
         "datasets": {
             STATES: {"revision": rev(STATES),