Pith Number

pith:7FZTT3KQ

pith:2018:7FZTT3KQXKHGCGTC3I7IQTTB7Y

not attested not anchored not stored refs pending

Pontogammarus Maeoticus Swarm Optimization: A Metaheuristic Optimization Algorithm

Benyamin Ghojogh, Saeed Sharifian

arxiv:1807.01844 v1 · 2018-07-05 · 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{7FZTT3KQXKHGCGTC3I7IQTTB7Y}

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	2026-05-18T00:11:28.502933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f97339ed50ba8e611a62da3e884e61fe0d1592d40bc5d6b325b8797adb7525a8

Aliases

arxiv: 1807.01844 · arxiv_version: 1807.01844v1 · doi: 10.48550/arxiv.1807.01844 · pith_short_12: 7FZTT3KQXKHG · pith_short_16: 7FZTT3KQXKHGCGTC · pith_short_8: 7FZTT3KQ

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/7FZTT3KQXKHGCGTC3I7IQTTB7Y \
  | 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: f97339ed50ba8e611a62da3e884e61fe0d1592d40bc5d6b325b8797adb7525a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a936a11078d21211fa50f4a8d2a11ad5cb6bf5816997174c0c1c9e2e891e2052",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2018-07-05T04:36:18Z",
    "title_canon_sha256": "f8b57b50f0c543194b01dcb653f8088e300de62ce19d6f863fcb6d98c3f1bd0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01844",
    "kind": "arxiv",
    "version": 1
  }
}