Pith Number

pith:XRNI2SIU

pith:2025:XRNI2SIUNN62PUNTY22QYMZ2BJ

not attested not anchored not stored refs pending

LongReasonArena: A Long Reasoning Benchmark for Large Language Models

Furu Wei, Jiayu Ding, Lei Cui, Nanning Zheng, Shuming Ma

arxiv:2508.19363 v1 · 2025-08-26 · 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{XRNI2SIUNN62PUNTY22QYMZ2BJ}

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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.

Cited by

2 papers in Pith

Cognitive Episodes in LLM Reasoning Traces Enable Interpretable Human Item Difficulty Prediction

Efficient Evaluation of LLM Performance with Statistical Guarantees

Receipt and verification

First computed	2026-07-05T11:59:44.130718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc5a8d49146b7da7d1b3c6b50c333a0a6944e6188e389fc1fd62b0d43daf3304

Aliases

arxiv: 2508.19363 · arxiv_version: 2508.19363v1 · doi: 10.48550/arxiv.2508.19363 · pith_short_12: XRNI2SIUNN62 · pith_short_16: XRNI2SIUNN62PUNT · pith_short_8: XRNI2SIU

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/XRNI2SIUNN62PUNTY22QYMZ2BJ \
  | 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: bc5a8d49146b7da7d1b3c6b50c333a0a6944e6188e389fc1fd62b0d43daf3304

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7261eade552f2546ef10f5ec1c1f2efbfe8fe89485795b558acef66665bf3607",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-08-26T18:41:53Z",
    "title_canon_sha256": "2299180b97c8def0b3c103a638d9d89e750ac0900969f834fb7161fe40d25e3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19363",
    "kind": "arxiv",
    "version": 1
  }
}