Pith Number

pith:D2HA42G4

pith:2022:D2HA42G4XAOPZBGCJYOT4CTIWY

not attested not anchored not stored refs pending

Updating velocities in heterogeneous comprehensive learning particle swarm optimization with low-discrepancy sequences

Feng Wu, Jianhua Pang, Wanxie Zhong, Yuelin Zhao

arxiv:2209.09438 v1 · 2022-09-20 · cs.NE · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2HA42G4XAOPZBGCJYOT4CTIWY}

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	2026-07-05T04:59:00.064832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e8e0e68dcb81cfc84c24e1d3e0a68b6121ad00c9520cbb996e7ee39416ad0c7

Aliases

arxiv: 2209.09438 · arxiv_version: 2209.09438v1 · doi: 10.48550/arxiv.2209.09438 · pith_short_12: D2HA42G4XAOP · pith_short_16: D2HA42G4XAOPZBGC · pith_short_8: D2HA42G4

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/D2HA42G4XAOPZBGCJYOT4CTIWY \
  | 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: 1e8e0e68dcb81cfc84c24e1d3e0a68b6121ad00c9520cbb996e7ee39416ad0c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7b50420ca67269e2588c73630aed2aec83bfb5793ef25fdacfd76279fe07d6b",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2022-09-20T03:14:09Z",
    "title_canon_sha256": "1c418d099c645a31a4f764c7be78b6219f4b68c502877fcf550ba889467405da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.09438",
    "kind": "arxiv",
    "version": 1
  }
}