Pith Number

pith:JVPOKPIA

pith:2018:JVPOKPIAANPJFR4BAJYFWJJ4QA

not attested not anchored not stored refs pending

Improved Crowding Distance for NSGA-II

Xiangxiang Chu, Xinjie Yu

arxiv:1811.12667 v1 · 2018-11-30 · cs.NE · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JVPOKPIAANPJFR4BAJYFWJJ4QA}

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	2026-05-17T23:59:28.873528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d5ee53d00035e92c78102705b253c800c2e026eb269728fc3eaedcd9b1541ad

Aliases

arxiv: 1811.12667 · arxiv_version: 1811.12667v1 · doi: 10.48550/arxiv.1811.12667 · pith_short_12: JVPOKPIAANPJ · pith_short_16: JVPOKPIAANPJFR4B · pith_short_8: JVPOKPIA

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/JVPOKPIAANPJFR4BAJYFWJJ4QA \
  | 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: 4d5ee53d00035e92c78102705b253c800c2e026eb269728fc3eaedcd9b1541ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69e33a0d38e870ef2ae6cf0ca11396001445d40c4bff9b4b74f30f0c51300ec7",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2018-11-30T08:18:05Z",
    "title_canon_sha256": "5ee348172d39c2917a86a6eefc0f13a64246a2fd9e18efb8a9b6cc5130564944"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.12667",
    "kind": "arxiv",
    "version": 1
  }
}