Pith Number

pith:5Y4NIX2S

pith:2025:5Y4NIX2S2WVPFDDDOBT5QJMFPS

not attested not anchored not stored refs pending

Counterfactual Probing for Hallucination Detection and Mitigation in Large Language Models

Yijun Feng

arxiv:2508.01862 v1 · 2025-08-03 · 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{5Y4NIX2S2WVPFDDDOBT5QJMFPS}

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	2026-07-05T11:47:46.653336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee38d45f52d5aaf28c637067d825857c9339db4d7adad20c27275e9dde34135a

Aliases

arxiv: 2508.01862 · arxiv_version: 2508.01862v1 · doi: 10.48550/arxiv.2508.01862 · pith_short_12: 5Y4NIX2S2WVP · pith_short_16: 5Y4NIX2S2WVPFDDD · pith_short_8: 5Y4NIX2S

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/5Y4NIX2S2WVPFDDDOBT5QJMFPS \
  | 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: ee38d45f52d5aaf28c637067d825857c9339db4d7adad20c27275e9dde34135a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c46100e079f0dccc9266dbd63a0890d9f4f0d3825d0e85d766cb9f3d6c4c80ce",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-08-03T17:29:48Z",
    "title_canon_sha256": "44f4a7ddf79f25581bef344508f264a2b2e0b47b6d1bab7b98c677cef646d8c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.01862",
    "kind": "arxiv",
    "version": 1
  }
}