Pith Number

pith:Y6QZHTVT

pith:2012:Y6QZHTVTPRZHF2ZUUN7WJ7XPGE

not attested not anchored not stored refs pending

A hybrid generalized extremal optimization algorithm for the quay crane scheduling problem with interference constraints

Peng Guo, Wenming Chen, Yi Wang

arxiv:1210.6896 v3 · 2012-10-25 · 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{Y6QZHTVTPRZHF2ZUUN7WJ7XPGE}

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	2026-05-18T03:18:31.499607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7a193ceb37c7272eb34a37f64feef310da47399890bd7e4ff7db93fb77e111e

Aliases

arxiv: 1210.6896 · arxiv_version: 1210.6896v3 · doi: 10.48550/arxiv.1210.6896 · pith_short_12: Y6QZHTVTPRZH · pith_short_16: Y6QZHTVTPRZHF2ZU · pith_short_8: Y6QZHTVT

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/Y6QZHTVTPRZHF2ZUUN7WJ7XPGE \
  | 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: c7a193ceb37c7272eb34a37f64feef310da47399890bd7e4ff7db93fb77e111e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73d1f5b0b658b1704190da41d22b33076cc1f80e582105df5dd7de5f0bc801d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-10-25T16:28:45Z",
    "title_canon_sha256": "6341416fa8eb35f3952041a8592b6acbf56d735ab9ff5911e917310b88e9af8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6896",
    "kind": "arxiv",
    "version": 3
  }
}