Pith Number

pith:NIU4DKLB

pith:2012:NIU4DKLB326ZIULAV3BGGXCXFD

not attested not anchored not stored refs pending

Metaheuristic Optimization: Algorithm Analysis and Open Problems

Xin-She Yang

arxiv:1212.0220 v1 · 2012-12-02 · math.OC · 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{NIU4DKLB326ZIULAV3BGGXCXFD}

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	2026-05-18T03:39:26.844428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a29c1a961debd945160aec2635c5728e34d05ee2b258628da3a1bdc6bc4f44b

Aliases

arxiv: 1212.0220 · arxiv_version: 1212.0220v1 · doi: 10.48550/arxiv.1212.0220 · pith_short_12: NIU4DKLB326Z · pith_short_16: NIU4DKLB326ZIULA · pith_short_8: NIU4DKLB

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/NIU4DKLB326ZIULAV3BGGXCXFD \
  | 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: 6a29c1a961debd945160aec2635c5728e34d05ee2b258628da3a1bdc6bc4f44b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34cfcdc963efad64b6de23b9b96070c8654e0d54d9c3b67fbb0d7c80c7d44aec",
    "cross_cats_sorted": [
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-12-02T16:01:23Z",
    "title_canon_sha256": "148b694871d013d7e79f30314c76ee1dddfd13eebe226ad68909e72fe9ba726e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0220",
    "kind": "arxiv",
    "version": 1
  }
}