Pith Number

pith:MZD5CY7E

pith:2019:MZD5CY7EPIJ7MXHQQ7XDGAWRS7

not attested not anchored not stored refs pending

A Systematic and Meta-analysis Survey of Whale Optimization Algorithm

3), 4), Applied Sciences, Chamchamal, Charmo University, College of Computer Science, College of Health, Engineering, Erbil, Hardi M. Mohammed (1, Information Technology, Iraq), Iraq. (2) Computer Science, Iraq. (3) Applied Computer Department, Iraq. (4) Network Department, Kirkuk, Kirkuk University, KRG, Shahla U. Umar (1, Sulaimani, Sulaimani Polytechnic University, Tarik A. Rashid (2) ((1) Technical College of Informatics, University of Kurdistan Hewler (UKH)

arxiv:1903.08763 v3 · 2019-03-20 · 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{MZD5CY7EPIJ7MXHQQ7XDGAWRS7}

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	2026-05-17T23:47:53.689602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6647d163e47a13f65cf087ee3302d197da5105817f42c2676ae3096efa8bcd8a

Aliases

arxiv: 1903.08763 · arxiv_version: 1903.08763v3 · doi: 10.48550/arxiv.1903.08763 · pith_short_12: MZD5CY7EPIJ7 · pith_short_16: MZD5CY7EPIJ7MXHQ · pith_short_8: MZD5CY7E

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/MZD5CY7EPIJ7MXHQQ7XDGAWRS7 \
  | 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: 6647d163e47a13f65cf087ee3302d197da5105817f42c2676ae3096efa8bcd8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7845c23b5a26a9961ff3e2c862c76935ad7cf31a6cab8cbaf95c24eea211fef",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2019-03-20T22:10:11Z",
    "title_canon_sha256": "1edbfaf8d20230993e078a227f65e8b689d228e298ea2abb1891276f5105a288"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08763",
    "kind": "arxiv",
    "version": 3
  }
}