Pith Number

pith:HCUPZNJM

pith:2014:HCUPZNJMHYQ23VGWABPORGDU3W

not attested not anchored not stored refs pending

A Parallel Memetic Algorithm to Solve the Vehicle Routing Problem with Time Windows

Jakub Nalepa, Zbigniew J. Czech

arxiv:1402.6942 v1 · 2014-02-27 · cs.DC · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HCUPZNJMHYQ23VGWABPORGDU3W}

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	2026-05-18T02:57:36.563111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38a8fcb52c3e21add4d6005ee89874dd85a83a26dc949fa2b38e11e5516f9a79

Aliases

arxiv: 1402.6942 · arxiv_version: 1402.6942v1 · doi: 10.48550/arxiv.1402.6942 · pith_short_12: HCUPZNJMHYQ2 · pith_short_16: HCUPZNJMHYQ23VGW · pith_short_8: HCUPZNJM

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/HCUPZNJMHYQ23VGWABPORGDU3W \
  | 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: 38a8fcb52c3e21add4d6005ee89874dd85a83a26dc949fa2b38e11e5516f9a79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa615433f19739a03d6e48ec091f587e824145106cbdb37cc525e301e6d43e2f",
    "cross_cats_sorted": [
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2014-02-27T15:41:05Z",
    "title_canon_sha256": "4198787b77243859d0312ace2e62d71b454d518276d433bd55bd00633e4dfd07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.6942",
    "kind": "arxiv",
    "version": 1
  }
}