Pith Number

pith:ISY2ZHDU

pith:2013:ISY2ZHDUGEPFCBZIEWQEE7AYVZ

not attested not anchored not stored refs pending

Parallel machine scheduling with step deteriorating jobs and setup times by a hybrid discrete cuckoo search algorithm

Peng Guo, Wenming Cheng, Yi Wang

arxiv:1309.1453 v1 · 2013-09-02 · math.OC · cs.DS · 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{ISY2ZHDUGEPFCBZIEWQEE7AYVZ}

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	2026-05-18T03:14:07.274263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44b1ac9c74311e51072825a0427c18ae6d57f6b68322dfe5976555fd0435384f

Aliases

arxiv: 1309.1453 · arxiv_version: 1309.1453v1 · doi: 10.48550/arxiv.1309.1453 · pith_short_12: ISY2ZHDUGEPF · pith_short_16: ISY2ZHDUGEPFCBZI · pith_short_8: ISY2ZHDU

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/ISY2ZHDUGEPFCBZIEWQEE7AYVZ \
  | 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: 44b1ac9c74311e51072825a0427c18ae6d57f6b68322dfe5976555fd0435384f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55f662cf066f14f18b116fd5a18b99fce1f7e7219737c869b8f71cd54647e51e",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-09-02T03:34:44Z",
    "title_canon_sha256": "e538391489b5084b97560290f9d817d771634af46ed92d1191eba3a2f7985d7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1453",
    "kind": "arxiv",
    "version": 1
  }
}