Pith Number

pith:PFIXBGMH

pith:2024:PFIXBGMHFN4PDASOMRJC74PXOI

not attested not anchored not stored refs pending

MetaCheckGPT -- A Multi-task Hallucination Detector Using LLM Uncertainty and Meta-models

Andrew Hoblitzell, Hyeju Jang, Jack O'Keefe, Rahul Mehta, Vasudeva Varma

arxiv:2404.06948 v2 · 2024-04-10 · 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{PFIXBGMHFN4PDASOMRJC74PXOI}

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	2026-07-05T08:06:49.140838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79517099872b78f1824e64522ff1f772242a40daeaee6195d97f526c1b5f8757

Aliases

arxiv: 2404.06948 · arxiv_version: 2404.06948v2 · doi: 10.48550/arxiv.2404.06948 · pith_short_12: PFIXBGMHFN4P · pith_short_16: PFIXBGMHFN4PDASO · pith_short_8: PFIXBGMH

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/PFIXBGMHFN4PDASOMRJC74PXOI \
  | 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: 79517099872b78f1824e64522ff1f772242a40daeaee6195d97f526c1b5f8757

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7b3f5932278d298207fbca9df7391530d3af14d501f3a2fd35b2dd0b2ef497f",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-04-10T11:56:01Z",
    "title_canon_sha256": "19e3c586199d10a10b02df36c8849ecc3c265c3a21ce57ee2e3c4699709af644"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.06948",
    "kind": "arxiv",
    "version": 2
  }
}