Pith Number

pith:D6K7TQ5B

pith:2026:D6K7TQ5BX43MF2RXMNJLVJLCUC

not attested not anchored not stored refs pending

RankLLM: Weighted Ranking of LLMs by Quantifying Question Difficulty

Kaidi Xu, Kai Zhang, Lichao Sun, Neil Zhenqiang Gong, Qingsong Wen, Ruoxi Chen, Xiangliang Zhang, Xingjian Hu, Yixin Liu, Yue Huang, Ziqian Zhang

arxiv:2602.12424 v2 · 2026-02-12 · 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{D6K7TQ5BX43MF2RXMNJLVJLCUC}

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	2026-06-10T01:09:55.903139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f95f9c3a1bf36c2ea376352baa562a09053ede8d52bb9eb47081df7f064fa0f

Aliases

arxiv: 2602.12424 · arxiv_version: 2602.12424v2 · doi: 10.48550/arxiv.2602.12424 · pith_short_12: D6K7TQ5BX43M · pith_short_16: D6K7TQ5BX43MF2RX · pith_short_8: D6K7TQ5B

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/D6K7TQ5BX43MF2RXMNJLVJLCUC \
  | 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: 1f95f9c3a1bf36c2ea376352baa562a09053ede8d52bb9eb47081df7f064fa0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfeb02f8bfbf34934c89bba73b904a17f0f445bf9b447962a677da57060c6547",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-02-12T21:28:46Z",
    "title_canon_sha256": "a38d19c08ff8aeea47b882257f7cac63c8896a3ead46aa0f7e5ce4bae885bd80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.12424",
    "kind": "arxiv",
    "version": 2
  }
}