Pith Number

pith:PJRYCLCD

pith:2023:PJRYCLCDTFLJHXTUOS7OPYWXZS

not attested not anchored not stored refs pending

NPHardEval: Dynamic Benchmark on Reasoning Ability of Large Language Models via Complexity Classes

Haoyang Ling, Lingyao Li, Lizhou Fan, Wenyue Hua, Yongfeng Zhang

arxiv:2312.14890 v4 · 2023-12-22 · cs.AI · cs.CC · cs.CL · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PJRYCLCDTFLJHXTUOS7OPYWXZS}

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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

Benchmark Data Contamination of Large Language Models: A Survey

OPT-BENCH: Evaluating the Iterative Self-Optimization of LLM Agents in Large-Scale Search Spaces

Receipt and verification

First computed	2026-07-05T07:43:59.274745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a63812c43995693de7474bee7e2d7ccacb5af95a1b0cfbe71e8aa6067470fb2

Aliases

arxiv: 2312.14890 · arxiv_version: 2312.14890v4 · doi: 10.48550/arxiv.2312.14890 · pith_short_12: PJRYCLCDTFLJ · pith_short_16: PJRYCLCDTFLJHXTU · pith_short_8: PJRYCLCD

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/PJRYCLCDTFLJHXTUOS7OPYWXZS \
  | 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: 7a63812c43995693de7474bee7e2d7ccacb5af95a1b0cfbe71e8aa6067470fb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8a2c8eca62337abe822649d35ec12d2e49ed2061e34b16fa4889d3302ac77d7",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2023-12-22T18:07:44Z",
    "title_canon_sha256": "47b20b3411e6d99bbb3bd7ebd1875f27f90bdce43442a325f9728cc218bb3d13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.14890",
    "kind": "arxiv",
    "version": 4
  }
}