Pith Number

pith:OH3OQUSG

pith:2018:OH3OQUSGAPCMQO72NU52A7PNMO

not attested not anchored not stored refs pending

PeSOA: Penguins Search Optimisation Algorithm for Global Optimisation Problems

Abdelouahab Moussaoui, Peng-Yeng Yin, Smaine Maazouzi, Yiannis Papadopoulos, Youcef Gheraibia

arxiv:1809.09895 v3 · 2018-09-26 · 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{OH3OQUSGAPCMQO72NU52A7PNMO}

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	2026-05-17T23:49:11.445971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71f6e8524603c4c83bfa6d3ba07ded63952b3b3ce603085f39905628cd234448

Aliases

arxiv: 1809.09895 · arxiv_version: 1809.09895v3 · doi: 10.48550/arxiv.1809.09895 · pith_short_12: OH3OQUSGAPCM · pith_short_16: OH3OQUSGAPCMQO72 · pith_short_8: OH3OQUSG

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/OH3OQUSGAPCMQO72NU52A7PNMO \
  | 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: 71f6e8524603c4c83bfa6d3ba07ded63952b3b3ce603085f39905628cd234448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f17fc8800ee17dc8764a69f5db1dde4113506ff58b4d49835d13bcf8e381d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2018-09-26T10:40:16Z",
    "title_canon_sha256": "8fb2a18134086d66543cbd8e88bf32223f3a59d686ff89ac23415e4a0e1607ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09895",
    "kind": "arxiv",
    "version": 3
  }
}