Pith Number

pith:WWXV4VBW

pith:2017:WWXV4VBWWEG5CEZL7OADDQ2PIA

not attested not anchored not stored refs pending

Complexity Analysis of the Parallel Guided Ejection Search for the Pickup and Delivery Problem with Time Windows

Jakub Nalepa, Miroslaw Blocho

arxiv:1704.06724 v1 · 2017-04-21 · cs.DS · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WWXV4VBWWEG5CEZL7OADDQ2PIA}

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	2026-05-18T00:45:57.772440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5af5e5436b10dd1132bfb8031c34f401aabd672bab1097e90d3c1a186e3d5c9

Aliases

arxiv: 1704.06724 · arxiv_version: 1704.06724v1 · doi: 10.48550/arxiv.1704.06724 · pith_short_12: WWXV4VBWWEG5 · pith_short_16: WWXV4VBWWEG5CEZL · pith_short_8: WWXV4VBW

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/WWXV4VBWWEG5CEZL7OADDQ2PIA \
  | 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: b5af5e5436b10dd1132bfb8031c34f401aabd672bab1097e90d3c1a186e3d5c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3118dca58167cad3ee4c58e594d6d5e0ba9f65d1b4944f98c82939aafa798243",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-04-21T23:31:44Z",
    "title_canon_sha256": "c1dac878c8acd4b6a0026125aaebb3860007de93db966ae608009293d8e8ec7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06724",
    "kind": "arxiv",
    "version": 1
  }
}