Pith Number

pith:5I42ME7L

pith:2013:5I42ME7LF4E6SDEX2M3KTU4IIB

not attested not anchored not stored refs pending

Analyzing Evolutionary Optimization in Noisy Environments

Chao Qian, Yang Yu, Zhi-Hua Zhou

arxiv:1311.4987 v1 · 2013-11-20 · cs.AI · 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{5I42ME7LF4E6SDEX2M3KTU4IIB}

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	2026-05-18T03:06:42.272593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea39a613eb2f09e90c97d336a9d388406684099f6d851f74c9e3c983f744aecb

Aliases

arxiv: 1311.4987 · arxiv_version: 1311.4987v1 · doi: 10.48550/arxiv.1311.4987 · pith_short_12: 5I42ME7LF4E6 · pith_short_16: 5I42ME7LF4E6SDEX · pith_short_8: 5I42ME7L

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/5I42ME7LF4E6SDEX2M3KTU4IIB \
  | 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: ea39a613eb2f09e90c97d336a9d388406684099f6d851f74c9e3c983f744aecb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5cf72c3cee127b92a939c40f78e27c7e01cda9f66b63939b64a4c750d16f5c8",
    "cross_cats_sorted": [
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-11-20T09:28:52Z",
    "title_canon_sha256": "ccd324f10ead954a80273e923fc8a20301188695ce3a47a482b9fe8994595841"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4987",
    "kind": "arxiv",
    "version": 1
  }
}