Pith Number

pith:ENFNMLEU

pith:2026:ENFNMLEUYKHCEUFLH2HQX2AKWY

not attested not anchored not stored refs pending

ElasticBack: Stealthy Conditional Backdoor in LLM-Agent Skills via Coupled Trigger-Rule Optimization

Bing Chen, Hao Sui, Jie Liao, Simeng Qin, Xiaojun Jia, Yang Liu

arxiv:2608.09577 v1 · 2026-08-10 · 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{ENFNMLEUYKHCEUFLH2HQX2AKWY}

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	2026-08-11T02:24:32.513813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

234ad62c94c28e2250ab3e8f0be80ab61fc2023face552443092f98ca8f64e3a

Aliases

arxiv: 2608.09577 · arxiv_version: 2608.09577v1 · doi: 10.48550/arxiv.2608.09577 · pith_short_12: ENFNMLEUYKHC · pith_short_16: ENFNMLEUYKHCEUFL · pith_short_8: ENFNMLEU

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/ENFNMLEUYKHCEUFLH2HQX2AKWY \
  | 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: 234ad62c94c28e2250ab3e8f0be80ab61fc2023face552443092f98ca8f64e3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d27049c578e75fb976a67d5ac62e296d5b7d278728be3410305e5e8a15279db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-08-10T13:12:35Z",
    "title_canon_sha256": "05b823c27ea32f15a333b65494919d946622bc582895ac4195988a4d6c6db525"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.09577",
    "kind": "arxiv",
    "version": 1
  }
}