Pith Number

pith:27PW6K2K

pith:2018:27PW6K2KPQ4525TLQDHEHD3PYM

not attested not anchored not stored refs pending

A Tunable Particle Swarm Size Optimization Algorithm for Feature Selection

Naresh Mallenahalli, T. Hitendra Sarma

arxiv:1806.10551 v1 · 2018-06-20 · 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{27PW6K2KPQ4525TLQDHEHD3PYM}

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	2026-05-18T00:12:12.042009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7df6f2b4a7c39dd766b80ce438f6fc331577c83e5a1243b98fba1b60fa148f1

Aliases

arxiv: 1806.10551 · arxiv_version: 1806.10551v1 · doi: 10.48550/arxiv.1806.10551 · pith_short_12: 27PW6K2KPQ45 · pith_short_16: 27PW6K2KPQ4525TL · pith_short_8: 27PW6K2K

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/27PW6K2KPQ4525TLQDHEHD3PYM \
  | 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: d7df6f2b4a7c39dd766b80ce438f6fc331577c83e5a1243b98fba1b60fa148f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed56705a80fa8baf61852cb5d666f14e69108219bf4e1bf6d3bdb6e48de71abf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2018-06-20T08:31:14Z",
    "title_canon_sha256": "1bf4b7302166e2ca93bbb103433496a4092d343c53d33b4ebef851749b2722e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10551",
    "kind": "arxiv",
    "version": 1
  }
}