Pith Number

pith:UCGUP3D4

pith:2012:UCGUP3D4YNUNVDXDPS7Q3FFWUV

not attested not anchored not stored refs pending

Evaluation of Particle Swarm Optimization Algorithms for Weighted Max-Sat Problem: Technical Report

Osama Khalil

arxiv:1212.0639 v2 · 2012-12-04 · 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{UCGUP3D4YNUNVDXDPS7Q3FFWUV}

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	2026-05-18T00:48:29.017128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a08d47ec7cc368da8ee37cbf0d94b6a557745db015051c681dfc6c34d12e1070

Aliases

arxiv: 1212.0639 · arxiv_version: 1212.0639v2 · doi: 10.48550/arxiv.1212.0639 · pith_short_12: UCGUP3D4YNUN · pith_short_16: UCGUP3D4YNUNVDXD · pith_short_8: UCGUP3D4

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/UCGUP3D4YNUNVDXDPS7Q3FFWUV \
  | 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: a08d47ec7cc368da8ee37cbf0d94b6a557745db015051c681dfc6c34d12e1070

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a47763b1ff20530605c61b931ee03e9ffbc1797d8f33f4fbeb1572924c2526e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2012-12-04T08:48:29Z",
    "title_canon_sha256": "a3ecfe9e2dd8d5fd43209af86892180a83281d2beb9eda779415adc58d57b620"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0639",
    "kind": "arxiv",
    "version": 2
  }
}