Pith Number

pith:6O2HOA2H

pith:2015:6O2HOA2HKML2JI4OFQDYHRTO7N

not attested not anchored not stored refs pending

A Social Spider Algorithm for Global Optimization

James J.Q. Yu, Victor O.K. Li

arxiv:1502.02407 v1 · 2015-02-09 · 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{6O2HOA2HKML2JI4OFQDYHRTO7N}

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	2026-05-18T02:27:42.444997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3b47703475317a4a38e2c0783c66efb683ba58e2d3085e9d4135066890962d9

Aliases

arxiv: 1502.02407 · arxiv_version: 1502.02407v1 · doi: 10.48550/arxiv.1502.02407 · pith_short_12: 6O2HOA2HKML2 · pith_short_16: 6O2HOA2HKML2JI4O · pith_short_8: 6O2HOA2H

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/6O2HOA2HKML2JI4OFQDYHRTO7N \
  | 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: f3b47703475317a4a38e2c0783c66efb683ba58e2d3085e9d4135066890962d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e39c2dc41a23c989948c0a163bb4542472372f30022a489591b96abf3e28ea53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2015-02-09T09:46:40Z",
    "title_canon_sha256": "ad2e15f8a5cc36410adcdc3fbc65bc1b0976471c66a3cbe4b0f740699161a093"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02407",
    "kind": "arxiv",
    "version": 1
  }
}