Pith Number

pith:FU4YS6TV

pith:2025:FU4YS6TVFEIMLXOUQJMEHTRR2W

not attested not anchored not stored refs pending

CO-Bench: Benchmarking Language Model Agents in Algorithm Search for Combinatorial Optimization

Shanda Li, Shengyu Feng, Weiwei Sun, Yiming Yang

arxiv:2504.04310 v3 · 2025-04-06 · 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{FU4YS6TVFEIMLXOUQJMEHTRR2W}

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.

Cited by

1 paper in Pith

Vehicle Routing Problem Meets Large Language Models: An Overview and Perspectives

Receipt and verification

First computed	2026-07-05T11:57:35.615208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d39897a752910c5ddd4825843ce31d5a5cebe1f129e1aee91db3517f49d6644

Aliases

arxiv: 2504.04310 · arxiv_version: 2504.04310v3 · doi: 10.48550/arxiv.2504.04310 · pith_short_12: FU4YS6TVFEIM · pith_short_16: FU4YS6TVFEIMLXOU · pith_short_8: FU4YS6TV

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/FU4YS6TVFEIMLXOUQJMEHTRR2W \
  | 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: 2d39897a752910c5ddd4825843ce31d5a5cebe1f129e1aee91db3517f49d6644

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1014b3d964e9182bc27bc62a0f36d856c7b18122f8b147f68077a27dad9d926",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-06T00:47:43Z",
    "title_canon_sha256": "9f4ce43495b63d41ae98a40bd42a9995e418a08a44df9853876820885d68d5a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.04310",
    "kind": "arxiv",
    "version": 3
  }
}