Pith Number

pith:2WQVGXHU

pith:2018:2WQVGXHUUPJILVZQHHNEYKKU6U

not attested not anchored not stored refs pending

A Column Generation Algorithm for Vehicle Scheduling and Routing Problems

Chrysafis Vogiatzis, Md. Noor-E-Alam, Tasnim Ibn Faiz

arxiv:1806.00831 v3 · 2018-06-03 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2WQVGXHUUPJILVZQHHNEYKKU6U}

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	2026-05-17T23:49:22.448276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5a1535cf4a3d285d73039da4c2954f53448994ee53c88a5f62117a1e3c45e89

Aliases

arxiv: 1806.00831 · arxiv_version: 1806.00831v3 · doi: 10.48550/arxiv.1806.00831 · pith_short_12: 2WQVGXHUUPJI · pith_short_16: 2WQVGXHUUPJILVZQ · pith_short_8: 2WQVGXHU

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/2WQVGXHUUPJILVZQHHNEYKKU6U \
  | 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: d5a1535cf4a3d285d73039da4c2954f53448994ee53c88a5f62117a1e3c45e89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a2d38335099df6366a35db3919eabfd4d24696ae816de9c0b77402cddeda7d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-06-03T16:49:10Z",
    "title_canon_sha256": "5b052e0fa90b3a3dd35fde8f2ca1605e532f94825c0643449e527330c033816d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00831",
    "kind": "arxiv",
    "version": 3
  }
}