Pith Number

pith:NBE3TTIB

pith:2019:NBE3TTIBNNWRWS3QCP2FXJMN5G

not attested not anchored not stored refs pending

Sweep Algorithms for the Capacitated Vehicle Routing Problem with Structured Time Window

Christian Truden, Christoph Hertrich, Philipp Hungerl\"ander

arxiv:1901.02771 v1 · 2019-01-09 · math.OC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBE3TTIBNNWRWS3QCP2FXJMN5G}

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	2026-07-05T00:10:50.161408Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6849b9cd016b6d1b4b7013f45ba58de9a67ad719fc997b15b7addd7889c2bf17

Aliases

arxiv: 1901.02771 · arxiv_version: 1901.02771v1 · doi: 10.48550/arxiv.1901.02771 · pith_short_12: NBE3TTIBNNWR · pith_short_16: NBE3TTIBNNWRWS3Q · pith_short_8: NBE3TTIB

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/NBE3TTIBNNWRWS3QCP2FXJMN5G \
  | 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: 6849b9cd016b6d1b4b7013f45ba58de9a67ad719fc997b15b7addd7889c2bf17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dd30dda023b32f4c488f6a14b34ba7f52a6e20b053b5adadf38a07d1df9d54a",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-01-09T15:00:46Z",
    "title_canon_sha256": "688fe4480c851540007537e63e1d79d9829f2b8850b2b4ae6801c3e03c913a09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02771",
    "kind": "arxiv",
    "version": 1
  }
}