Pith Number

pith:MWD3C53Z

pith:2026:MWD3C53ZCD3WRDJWBMT6MJFUIC

not attested not anchored not stored refs pending

Layer-Isolated Evaluation: Gating the Deterministic Scaffold of a Production LLM Agent with a No-LLM, Regression-Locked Test Harness

Alexander Wang, Sawyer Zhang, Sophie Lei

arxiv:2606.11686 v1 · 2026-06-10 · cs.CL · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MWD3C53ZCD3WRDJWBMT6MJFUIC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-11T01:10:02.782158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6587b1777910f7688d360b27e624b440b35bdf4467cbfb7708f981e0c1476525

Aliases

arxiv: 2606.11686 · arxiv_version: 2606.11686v1 · doi: 10.48550/arxiv.2606.11686 · pith_short_12: MWD3C53ZCD3W · pith_short_16: MWD3C53ZCD3WRDJW · pith_short_8: MWD3C53Z

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/MWD3C53ZCD3WRDJWBMT6MJFUIC \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6587b1777910f7688d360b27e624b440b35bdf4467cbfb7708f981e0c1476525

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88a8ea1c1af76f56b662b9ef1e6d40db468876ec3577bdf94f718d74a2f20238",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-10T05:55:13Z",
    "title_canon_sha256": "d1a89653e228d46e5b412faaa3ee1fe6eb31ca2c16fa789bdaada4345d9f6015"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11686",
    "kind": "arxiv",
    "version": 1
  }
}