Pith Number

pith:56KNJULY

pith:2026:56KNJULYKL3KNXG2S253XDJUNT

not attested not anchored not stored refs pending

Phantom Guardrails: When Self-Improving Agent Harnesses Fix Failures That Never Happened

Haoran Yu, Jingzhou Xu, Lifei Liu, Pin Qian, Su Wang, Xiaochong Jiang, Yifan Lin, Yihang Chen

arxiv:2607.13083 v1 · 2026-07-13 · cs.CR · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56KNJULYKL3KNXG2S253XDJUNT}

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	2026-07-16T00:21:54.951825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef94d4d17852f6a6dcda96bbbb8d346cfa9a2bb406c41fe9400ebc89381408c5

Aliases

arxiv: 2607.13083 · arxiv_version: 2607.13083v1 · doi: 10.48550/arxiv.2607.13083 · pith_short_12: 56KNJULYKL3K · pith_short_16: 56KNJULYKL3KNXG2 · pith_short_8: 56KNJULY

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/56KNJULYKL3KNXG2S253XDJUNT \
  | 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: ef94d4d17852f6a6dcda96bbbb8d346cfa9a2bb406c41fe9400ebc89381408c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc0b568da42103da1a78fd0430e3ef6eb20d429512cd98359debb5726d791045",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-13T10:14:15Z",
    "title_canon_sha256": "53fa0e5f3dac291bfd0d888a2003826f9d6f1bded54aa81a4f0a010c7de4f7a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.13083",
    "kind": "arxiv",
    "version": 1
  }
}