Pith Number

pith:5YJLKHXW

pith:2020:5YJLKHXWVBBCZWLWRFAYLPQFBU

not attested not anchored not stored refs pending

Performance Analysis of Meta-heuristic Algorithms for a Quadratic Assignment Problem

Reza Tavakkoli-Moghaddam, Siavash Tabrizian, Zohreh Raziei

arxiv:2007.14885 v1 · 2020-07-29 · 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{5YJLKHXWVBBCZWLWRFAYLPQFBU}

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	2026-07-05T01:23:19.920546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee12b51ef6a8422cd976894185be050d0bf0aa086d82e209bd975b3599f36044

Aliases

arxiv: 2007.14885 · arxiv_version: 2007.14885v1 · doi: 10.48550/arxiv.2007.14885 · pith_short_12: 5YJLKHXWVBBC · pith_short_16: 5YJLKHXWVBBCZWLW · pith_short_8: 5YJLKHXW

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/5YJLKHXWVBBCZWLWRFAYLPQFBU \
  | 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: ee12b51ef6a8422cd976894185be050d0bf0aa086d82e209bd975b3599f36044

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4be1f80dfa2363db4ecaa017b9648a8777deb30fab8a4825141f8db261a4f08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2020-07-29T15:02:07Z",
    "title_canon_sha256": "20c6617f85f96c5683ff7fd9964d987abc12f4e8a3eb186738565215e8312849"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.14885",
    "kind": "arxiv",
    "version": 1
  }
}