Pith Number

pith:R2HKB74S

pith:2012:R2HKB74SQNYBNIMLS23AVK6ZK3

not attested not anchored not stored refs pending

Empirical review of standard benchmark functions using evolutionary global optimization

Bernd Hartke, Johannes M. Dieterich

arxiv:1207.4318 v1 · 2012-07-18 · 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{R2HKB74SQNYBNIMLS23AVK6ZK3}

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	2026-05-18T03:50:47.042078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e8ea0ff92837016a18b96b60aabd956f31bba577fd6e84496041642faa34235

Aliases

arxiv: 1207.4318 · arxiv_version: 1207.4318v1 · doi: 10.48550/arxiv.1207.4318 · pith_short_12: R2HKB74SQNYB · pith_short_16: R2HKB74SQNYBNIML · pith_short_8: R2HKB74S

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/R2HKB74SQNYBNIMLS23AVK6ZK3 \
  | 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: 8e8ea0ff92837016a18b96b60aabd956f31bba577fd6e84496041642faa34235

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "594e6e01c476f441aaa0e93688865dd05daad49492f4926f5b2d73d6a58d1ba8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2012-07-18T09:44:22Z",
    "title_canon_sha256": "7229f2f5a87892c698d61566bdebdedef1deb2af7d12d40b44ffce23ef3ec13f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4318",
    "kind": "arxiv",
    "version": 1
  }
}