Pith Number

pith:XDWOFWSO

pith:2011:XDWOFWSOOBTSZVREZFDEXJW3WI

not attested not anchored not stored refs pending

Review of Metaheuristics and Generalized Evolutionary Walk Algorithm

Xin-She Yang

arxiv:1105.3668 v1 · 2011-05-18 · math.OC · nlin.AO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDWOFWSOOBTSZVREZFDEXJW3WI}

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	2026-05-18T04:21:52.098001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8ece2da4e70672cd624c9464ba6dbb20fa3ead13aff3cd4374121ccdbcc7466

Aliases

arxiv: 1105.3668 · arxiv_version: 1105.3668v1 · doi: 10.48550/arxiv.1105.3668 · pith_short_12: XDWOFWSOOBTS · pith_short_16: XDWOFWSOOBTSZVRE · pith_short_8: XDWOFWSO

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/XDWOFWSOOBTSZVREZFDEXJW3WI \
  | 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: b8ece2da4e70672cd624c9464ba6dbb20fa3ead13aff3cd4374121ccdbcc7466

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a839a0ef93ab4c7734ae0d5aba7136f84fa4342cc0ec0ccf66ae7ace0dab0d00",
    "cross_cats_sorted": [
      "nlin.AO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-05-18T15:47:21Z",
    "title_canon_sha256": "619a737ffcab02bcba9ae2705fe19564b02e807d69e8832dbe2abe70c5deb145"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3668",
    "kind": "arxiv",
    "version": 1
  }
}