Pith Number

pith:5H6F5FEC

pith:2026:5H6F5FECVFAY4PWLMHA36Z3TRM

not attested not anchored not stored refs pending

CogArena: A Multimethod Evaluation of Cognitive Ability Structure in Large Language Models

Dengzhe Hou, Fangzhou Lin, Kazunori D Yamada, Lingyu Jiang

arxiv:2607.24999 v1 · 2026-07-27 · 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{5H6F5FECVFAY4PWLMHA36Z3TRM}

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	2026-07-29T00:24:57.173952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9fc5e9482a9418e3ecb61c1bf67738b1a6311efd53919973ff25c45a7ca1abf

Aliases

arxiv: 2607.24999 · arxiv_version: 2607.24999v1 · doi: 10.48550/arxiv.2607.24999 · pith_short_12: 5H6F5FECVFAY · pith_short_16: 5H6F5FECVFAY4PWL · pith_short_8: 5H6F5FEC

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/5H6F5FECVFAY4PWLMHA36Z3TRM \
  | 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: e9fc5e9482a9418e3ecb61c1bf67738b1a6311efd53919973ff25c45a7ca1abf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1219927f827f787c06478ac555cfbbea8d293c9030c14f1b93561815ce1531e4",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-27T18:56:13Z",
    "title_canon_sha256": "96953c8b78093ec487763dafa593a072942d714de9303fb8aff9976c58477a4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.24999",
    "kind": "arxiv",
    "version": 1
  }
}